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  • taxonomy
  • Springer  (37)
  • Institute of Physics
  • Nature Publishing Group
  • 1995-1999
  • 1990-1994  (37)
  • 1940-1944
  • 1994  (37)
Collection
Keywords
Publisher
  • Springer  (37)
  • Institute of Physics
  • Nature Publishing Group
Years
  • 1995-1999
  • 1990-1994  (37)
  • 1940-1944
Year
  • 1
    Electronic Resource
    Electronic Resource
    Synonymy of the yeast generaWingea andDebaryomyces (1994)
    Springer
    Antonie van Leeuwenhoek 66 (1994), S. 337-342 
    Details
    ISSN: 1572-9699
    Keywords: Debaryomyces ; phylogeny ; ribosomal RNA ; taxonomy ; Wingea ; yeasts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Extent of divergence in partial nucleotide sequences from large and small subunit ribosomal RNAs was used to estimate the evolutionary relationship between the generaWingea andDebaryomyces. These data showed the monotypic genusWingea to be congeneric withDebaryomyces, and it is proposed to transferW. robertsii toDebaryomyces.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00882770
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  • 2
    Electronic Resource
    Electronic Resource
    Phylogenetic influences in microbial hydroxylation of terpenoids (1994)
    Springer
    World journal of microbiology and biotechnology 10 (1994), S. 88-92 
    Details
    ISSN: 1573-0972
    Keywords: Intelligent screening ; microbial hydroxylation ; multivariate analyses ; taxonomy ; terpenoids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Forty strains of bacteria and 60 of fungi were screened with globulol, 1,8-cineol and cedrol and the strains compared, on the basis of the resulting products, using multivariate analyses. The taxonomic position of the strains is mirrored in their biotransformation capability. Fungi and bacteria, fungal phyla, and Gram-positive and-negative bacteria could all be distinguished in a discriminant analysis using 12 substrates. Hierarchical clustering yielded five groups of strains with distinct biotransformation activity. Such clustering will allow a more efficient screening than before.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00357570
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  • 3
    Electronic Resource
    Electronic Resource
    Three species of rust fungi (Uredinales) from Okinawa, Japan (1994)
    Springer
    Mycoscience 35 (1994), S. 125-129 
    Details
    ISSN: 1618-2545
    Keywords: rust fungus ; taxonomy ; Puccinia tarennicola ; Uredinales ; Uredo daphniphylli ; Uredo pipturi
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Three species of rust fungi were reported based on the specimens collected in the islands of the Yaeyama group and Okinawa, Japan.Puccinia tarennicola onTarenna gracilipes andUredo daphniphylli onDaphniphyllum teijsmannii were described as new species.Villebrunea frutescens was added to the host plants ofUredo pipturi.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02318488
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  • 4
    Electronic Resource
    Electronic Resource
    Pollen diameter and fertility in nine species ofPuccinellia (Poaceae) (1994)
    Springer
    Plant systematics and evolution 191 (1994), S. 161-170 
    Details
    ISSN: 1615-6110
    Keywords: Poaceae ; Puccinellia ; Pollen maximum diameter ; pollen fertility ; taxonomy ; Flora of the Iberian Peninsula
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Diameter and fertility of pollen grains were surveyed in nine species ofPuccinellia Parl. (Poaceae), mainly from the Iberian Peninsula, allowing information about reproductive behaviour and biological characteristics of pollen of these taxa. Maximum diameter was measured with an image processor and fertility was evaluated by staining the grains with Müntzing's mixture. Significant differences in both characters were found between the taxa. In consequence, maximum diameter and fertility proved to have some taxonomic relevance inPuccinellia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984662
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  • 5
    Electronic Resource
    Electronic Resource
    Isoenzyme evidence on the systematics ofHordeum sectionMarina (Poaceae) (1994)
    Springer
    Plant systematics and evolution 191 (1994), S. 213-226 
    Details
    ISSN: 1615-6110
    Keywords: Poaceae ; Hordeum ; Isoenzymes ; taxonomy ; phylogenetic species ; sibling species
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Morphological differentiation of diploid accessions ofHordeum marinum Huds. s.l. into two varieties, var.marinum and var.fouilladei (Rouy)Nevski is associated with isoenzyme differentiation. The tetraploid form ofH. marinum s.l. exhibited fixed heterozygosity of several heterozymes with one homoeozyme shared with var.fouilladei and the second homoeozyme not found in the two diploids. It also differed from both diploids in the mobility of glucose-6-phosphate dehydrogenase. All three taxa differed in morphs of EST-A. It is concluded that the tetraploid is an allopolyploid with one genome closely related to the diploid var.fouilladei and with the second genome divergent from those of both diploids by genes for unique morphs of eight homoeozymes. On the basis of the isoenzyme data, three phylogenetic sibling species—H. marinum Huds. s.str. (2x),H. geniculatum All. s.str. (= var.fouilladei, 2x), andH. caudatum Jaaska, spec. nova (4x), are proposed within theH. marinum s.l. complex and a key is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984666
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  • 6
    Electronic Resource
    Electronic Resource
    Chemical variation in two species of theLecanora subfusca group (Lecanoraceae, lichenizedAscomycotina) (1994)
    Springer
    Plant systematics and evolution 191 (1994), S. 227-236 
    Details
    ISSN: 1615-6110
    Keywords: Lichenized fungi ; Lecanoraceae ; Lecanora epibryon ; L. subimmersa ; Chemotaxonomy ; biogeography ; taxonomy ; xanthones
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The chemical variation inLecanora epibryon andL. subimmersa, two species of theL. subfusca group, has been examined. In both species the chemical differences are correlated with geographical distribution, but not with morphological differences. As a consequence the chemotypes are recognized at subspecific level. InL. epibryon three chemical races are segregated according to the various chemosyndromes present. Subspeciesepibryon, containing atranorin and triterpenoids, occurs in the northern hemisphere and South America, while the other two subspecies occur only in the southern hemisphere. The subsp.broccha (Nyl.)Lumbsch, comb. nova, contains atranorin, the stictic acid and the 2,5,7-trichloro-3-O-methylnorlichexanthone chemosyndromes, while subsp.xanthophora Lumbsch, subsp. nova, is similar but lacks the stictic acid chemosyndrome. Two chemical races occur in the pantropical speciesL. subimmersa. While subsp.subimmersa contains atranorin and zeorin, subsp.ramboldii Lumbsch & Elix, subsp. nova, contains an additional ten chlorinated xanthones.L. impressa is reduced to synonymy toL. subimmersa.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984667
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  • 7
    Electronic Resource
    Electronic Resource
    The genusIschnea (Asteraceae, Senecioneae) in New Guinea (1994)
    Springer
    Plant systematics and evolution 191 (1994), S. 247-263 
    Details
    ISSN: 1615-6110
    Keywords: Asteraceae ; Senecioneae ; Blennospermatinae ; Ischnea ; Revision ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The endemic New Guinean genusIschnea F. Muell. (Asteraceae, Senecioneae, Blennospermatinae) is revised and four species are recognized. Characters of special interest are tubeless ray florets, male disc florets, and secretory spaces in leaves. A principal component analysis is made on theIschnea elachoglossa F. Muell. complex which shows great variation. One new species,I. capellana Swenson, from the Star Mountains, is described. A key, illustrations, and distribution maps to all species are supplied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984669
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  • 8
    Electronic Resource
    Electronic Resource
    Phylogenetic relationships of theJuglandaceae (1994)
    Springer
    Plant systematics and evolution 192 (1994), S. 11-29 
    Details
    ISSN: 1615-6110
    Keywords: Hamamelidae ; Juglandaceae ; rbcL ; phylogeny ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A cladistic analysis of molecular data from the chloroplast generbcL was used to examine the taxonomic relationships of the walnut family (Juglandaceae). In addition, chemical and morphological data from a previous study byHufford (1992) were incorporated, expanded, and analyzed independently and in combination with the molecular data. The results of these analyses suggest that theJuglandaceae are more closely related to theFagaceae, Betulaceae, Casuarinaceae, andUrticaceae and their relatives (sensuCronquist 1981) than they are to theAnacardiaceae (sensuThorne 1983). However, sequence data fromrbcL also suggest a relationship between the higherHamamelidae and certain families in theRosidae sensuCronquist 1981 (such asRosaceae andRhamnaceae), an outcome which would add credence to the widely accepted view of the polyphyletic nature of theHamamelidae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00985904
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  • 9
    Electronic Resource
    Electronic Resource
    Chemistry and micromorphology of compound epicuticular wax crystalloids (Strelitzia type) (1994)
    Springer
    Plant systematics and evolution 193 (1994), S. 115-123 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Strelitzia ; Heliconia ; Typha ; Benincasa ; Epicuticular wax ; wax ultrastructure ; wax chemistry ; systematics ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Certain non-liliiflorous taxa within the monocotyledons (e.g.,Strelitzia, Heliconia, Typha) are characterized by compound epicuticular wax rodlets (Strelitzia type). Similar rodlets are also encountered on the surface of the dicotyledonous plantBenincasa hispida (Thunb.)Cogn. Chemical analysis of the surface wax from both sources showed that the rodlets are chemically distinct. The rodlets of the monocotyledons consist exclusively of aliphatic wax lipids, mainly wax esters. In contrast, the rodlets ofBenincasa are cheifly composed of triterpenol acetates and triterpenols. Formation of rodlets is therefore interpreted as ultrastructural convergency. It is concluded that taxonomical studies on wax crystalloids can be misleading when interpreted in terms of micromorphology of crystalloids only.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00983545
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  • 10
    Electronic Resource
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    Gynoecium and perianth inZanthoxylum s.l. (Rutaceae) (1994)
    Springer
    Plant systematics and evolution 189 (1994), S. 165-191 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Rutaceae ; Zanthoxylum ; Fagara ; Flower morphology ; perianth ; gynoecium ; acrostylous and anacrostylous-basistylous carpels ; compitum ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The question whether the uniseriate perianth ofZanthoxylum L. s. str. is homologous with the calyx or the corolla of taxa included inFagara, or of an independent origin, has been controversial for a long time, but the arguments mostly have remained theoretical. The present investigation of floral structures indicates that there are two different types of uniseriate perianth inZanthoxylum s. str. Therefore, this taxon does not represent a natural group and should be united withFagara asZanthoxylum s.l. The infrageneric taxonomy of this genus is still very ambiguous. It is shown that differences in indumentum, number of sepals and petals (5-4-3) resp. perianth segments (4–9), stamens (3–6), and free carpels (1–5) are of systematic relevance. Particularly important but so far neglected is carpel shape, where an acrostylous and an anacrostylous-basistylous type can be recognized. Stigmata of 2 or more carpels mostly fuse to form a compitum. 4–5-merous flowers with calyx and corolla, and acrostylous carpels are considered as plesiomorphic character states in the genus. On the basis of ± corresponding morphological and phytochemical progressions a working hypothesis about the relationships withinZanthoxylum s.l. is presented in graphical form (Fig. 9).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00939724
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  • 11
    Electronic Resource
    Electronic Resource
    Allozymic and morphological relationships amongAndrocymbium gramineum, A. europaeum, andA. psammophilum (Colchicaceae) (1994)
    Springer
    Plant systematics and evolution 191 (1994), S. 111-126 
    Details
    ISSN: 1615-6110
    Keywords: Colchicaceae ; Androcymbium ; Allozymes ; evolution ; taxonomy ; genetic conservation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Levels of allozymic and morphological diversity amongAndrocymbium gramineum, A. europaeum, andA. psammophilum have been assessed using data on 17 allozyme loci and 18 morphological characters. No apparent pattern of geographic or ecological variation was found. Our results also suggest thatA. gramineum andA. europaeum should be considered members of a single species and that the insular speciesA. psammophilum can no longer be thought of as the result of a founder effect fromA. gramineum. Intrapopulational variability was greater than inter-populational variability at both levels studied, which is of strategic interest for the “ex-situ” conservation of these threatened endemic species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00985346
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  • 12
    Electronic Resource
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    Terpsinoe musica Ehrenberg (Bacillariophyceae, centrales), with emphasis on protoplast and cell division (1994)
    Springer
    Aquatic ecology 28 (1994), S. 63-69 
    Details
    ISSN: 1573-5125
    Keywords: taxonomy ; morphology ; morphogenesis ; Terpsinoe musica
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The morphology of intact cells ofTerpsinoe musica Ehrenberg and aspects of their morphogenesis have not been described before. Cells attach by apical mucus pads to form long bands; the chloroplast consists of numerous small granules. Formation of the new valvae on cell division starts from a central primary silicification site immediately adjacent to the postmitotic nuclei. The septa mentioned in reference works are erroneous interpretations of freely suspended transverse bars, formed at a later moment than the valvae. The absence of septa, and the presence of a labiate process said to be absent in Terpsinoe americana (Bailey) Ralfs, indicate the necessity of a taxonomic revision of the genus. The features said to distinguishTerpsinoe intermedia Grunow are unstable and cannot be regarded to define a separate entity. No evidence has been found for the euryhaline, brackish and even marine ecology mentioned in the literature forTerpsinoe musica, which typically lives in hardwater springs of (sub)tropical regions. The studies were made on populations collected alive at an interval of over half a century, from the same location.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02334246
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  • 13
    Electronic Resource
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    Ustilaginales of Commelinaceae (1994)
    Springer
    Mycoscience 35 (1994), S. 353-360 
    Details
    ISSN: 1618-2545
    Keywords: taxonomy ; Ustilaginales of Commelinaceae ; Ustilago combensis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The seven reported smut fungi on Commelinaceae are revised. Of these, five are recognised and described:Ustilago aneilematis, U. burkillii, U. commelinae, U. nawaschinii andU. tinantiae. Entyloma commelinae is considered to be a doubtful species andU. rwandensis is a synonym ofU. aneilematis. A new species,Ustilago combensis (type onCommelina benghalensis) is proposed. A key to thesee species is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02268505
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  • 14
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    Neptune: A marine micropaleontology database (1994)
    Springer
    Mathematical geology 26 (1994), S. 817-832 
    Details
    ISSN: 1573-8868
    Keywords: micropaleontology ; Neogene ; chronology ; taxonomy ; DSDP ; ODP
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Mathematics
    Notes: Abstract Marine micropaleontology must in the future provide more precise chronologic and paleoenvironmental information, which in turn must be based on better, more consistent taxonomic and distributional data. Better tools for synthesis and standardization of this data are needed, as the ever expanding published literature is rapidly becoming unmanageable by purely manual compilation methods. The micropaleontology group at the ETH has developed a large relational database of marine microfossil data to partially meet this need. It currently contains biogeographic data on the distribution in Deep Sea Drilling Project (DSDP) and Ocean Drilling Program (ODP) holes of nearly 8,000 species of Cenozoic planktonic foraminifera, radiolaria, diatoms and calcareous nannofossils. The database also includes full stratigraphic occurrence (range chart) data for these fossil groups from more than 100 selected Neogene holes. A particular feature of the database is that all sample information and species names in the original reports are linked to newly created, updatable, comprehensive age models and synonymy lists which reflect modern chronology and taxonomic usage. Searches of the database automatically make use of this information in producing reports. Species ' occurrences, including first and last occurrence information, can be further analyzed using external spreadsheet and statistics packages; plotted by mapping programs; or displayed by a new program which creates composite age-range charts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02083119
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  • 15
    Electronic Resource
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    Nutlet sculpturing of selectedTeucrium species (Lamiaceae): A character of taxonomic significance (1994)
    Springer
    Plant systematics and evolution 192 (1994), S. 199-214 
    Details
    ISSN: 1615-6110
    Keywords: Lamiaceae ; Teucrium ; SEM ; nutlet sculpturing ; oil glands ; trichomes ; micromorphology ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Nutlet sculpturing of 23Teucrium species belonging to six sections was studied. The nutlets of analysed species were characterized by the presence of the oil glands of various density. SectionTeucrium is well defined by very densely distributed trichomes and oil glands on nutlets. Trichomes on nutlets were absent in all other species, except inT. marum from sect.Chamaedrys. Sect.Polium is a homogeneous group, distinguished from the other sections. There are some similarities of this sect. with sect.Scordium. Species of sect.Chamaedrys are heterogeneous and overlap according to the surface sculpturing characters with the other sections. The significance of nutlet microcharacters as additional taxonomical markers in the infrageneric classification of the genusTeucrium is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00986252
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  • 16
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    Bolivia potato germplasm collecting expeditions 1993, 1994: Taxonomy and new germplasm resources (1994)
    Springer
    Euphytica 79 (1994), S. 137-148 
    Details
    ISSN: 1573-5060
    Keywords: Bolivia ; chromosome numbers ; genebank ; germplasm ; Solanum sect. Petota ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary We conducted joint Bolivia/The Netherlands/United States wild potato (Solanum sect. Petota Dumort.) germplasm collecting expeditions in Bolivia from February 1-April 15, 1993, and January 1-February 26, 1994. The goals of the expeditions were to collect germplasm and gather data for continuing taxonomic studies of the approximately 43 taxa of Bolivian wild potatoes accepted by current taxonomists. We made 223 collections, 135 as true seed collections, 54 as tubers, 19 only as herbarium collections. Two recent taxonomic treatments of Bolivian wild and cultivated potatoes have clarified the taxonomy and distribution of these plants, but there are continuing disagreements between treatments regarding species boundaries and interrelationships. These disagreements, and the variability we observed in natural populations, present problems for identifications. We summarize the state of germplasm collections for Bolivia, provide our field data regarding the taxonomy of Bolivian wild potatoes, provide recommendations for future collecting, and provide new chromosome counts for S. hoopesii, S. ugentii, and S. yungasense.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023585
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  • 17
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    Chloroplast DNA diversity in eggplant (Solanum melongena) and its related species S. incanum and S. marginatum (1994)
    Springer
    Euphytica 80 (1994), S. 1-4 
    Details
    ISSN: 1573-5060
    Keywords: chloroplast DNA ; eggplant ; evolution ; Solanum incanum ; Solanum melongena ; Solanum marginatum ; taxonomy ; variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Total chloroplast DNA (cpDNA) from Solanum incanum, a wild relative of eggplant, was used to probe total DNAs from 27 accessions of S. melongena (eggplant), S. incanum sensu lato and S. marginatum, all of which are quite similar in their morphology. There is a wide diversity in plastotypes within S. incanum sensu lato. On the other hand, only one restriction fragment pattern difference was detected between S. melongena and S. incanum sensu lato. The restriction fragment patterns generated by eight enzymes were recorded as present or absent, and a matrix for all fragment positions, enzymes and accessions was used for cluster analysis. In the dendrogram, it is suggested that S. marginatum is not nearly as closely related to S. melongena and S. incanum sensu lato as previously supposed, and some of accessions treated as S. incanum sensu lato, originated from Southern Africa, should be called S. lichtensteinii.
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    URL: http://dx.doi.org/10.1007/BF00039291
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  • 18
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    Recent developments inRhizobium taxonomy (1994)
    Springer
    Plant and soil 161 (1994), S. 11-20 
    Details
    ISSN: 1573-5036
    Keywords: Bradyrhizobium ; genetic diversity ; Rhizobium ; systematics ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Recent developments inRhizobium taxonomy are presented from a molecular and evolutionary point of view. Analyses of ribosomal RNA gene sequences provide a solid basis to infer phylogenies in the Rhizobiaceae family. These studies confirmed thatRhizobium andBradyrhizobium are only distantly related and showed thatRhizobium andBradyrhizobium are related to other groups of bacteria that are not plant symbionts.Rhizobium andAgrobacterium species are intermixed. Differences in plasmid content may explain to a good extent the different behavior ofRhizobium andAgrobacterium as symbionts or pathogens. Other approaches to identify and classify bacteria such as DNA-DNA hybridization, fatty acid analysis, RFLP and RPD-PCR techniques and phylogenies derived from other genes are in general agreement to the groupings derived by ribosomal sequences. Only a small proportion of nodulated legumes have been sampled for their symbionts and more knowledge is required on the systematics and taxonomy ofRhizobium andBradyrhizobium species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02183081
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  • 19
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    New records of Malaysian marine algae (1994)
    Springer
    Hydrobiologia 285 (1994), S. 123-129 
    Details
    ISSN: 1573-5117
    Keywords: marine algae ; Malaysia ; new records ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Checklists of the marine algae of Malaysia have been published. The last checklist included the marine algae of Singapore. The checklist recorded 212 taxa for the region. This paper lists an additional 7 taxa of Chlorophyta, 18 taxa of Rhodophyta and 5 taxa of Phaeophyta, which had been left out of the last checklist. These include marine algae from Pulau Pinang, Pulau Redang and Pulau Sibu. In addition, new records of Cyanophyta (2 species), Chlorophyta (4 species), Rhodophyta (10 species) and Phaeophyta (3 species) are reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00005660
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  • 20
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    New records of Rotifera from India (1994)
    Springer
    Hydrobiologia 287 (1994), S. 251-258 
    Details
    ISSN: 1573-5117
    Keywords: Rotifera ; India ; taxonomy ; zoogeography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Fifteen species of monogonont Rotifera are recorded from India for the first time. These are Lecane acanthinula (Hauer), L. aspasia Myers, L. monostyla (Daday), L. ruttneri (Hauer), L. simonneae Segers, Lepadella costatoides Segers, L. cf. favorita Klement, L. minuta (Montet), L. triba Myers, Notommata pachyura (Gosse), N. saccigera Ehrenberg, Sinantherina semibullata (Thorpe), Trichocerca chattoni (De Beauchamp), T. kostei Segers and Taphrocampa selenura (Gosse). Taxonomic and/or zoogeographic notes are added, when appropriate.
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    URL: http://dx.doi.org/10.1007/BF00006374
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  • 21
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    Lepadella beyensi (Rotifera Monogononta: Colurellidae), a new species from the Canadian High Arctic (1994)
    Springer
    Hydrobiologia 294 (1994), S. 61-63 
    Details
    ISSN: 1573-5117
    Keywords: Rotifera ; new species ; taxonomy ; Canada ; High Arctic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A new species of Lepadella was discovered during an investigation of the Rotifera of freshwater ponds in Cambridge Bay, Victoria Island, N.W.T., Canada. A description of the new species is given.
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    URL: http://dx.doi.org/10.1007/BF00017626
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    A preliminary review of the taxonomic characters used for the systematics of the genus Trichodrilus Claparède (Oligochaeta, Lumbriculidae) (1994)
    Springer
    Hydrobiologia 278 (1994), S. 35-51 
    Details
    ISSN: 1573-5117
    Keywords: Oligochaeta ; Lumbriculidae ; Trichodrilus ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The taxonomic characters of the 34 known species of the genus Trichodrilus Claparède, 1862 are discussed as a basis for a systematic revision of the genus. Some additions to the species descriptions are made subsequent to examination of type collections. Trichodrilus campoyi Rodriguez, 1988, originally described as a subspecies of T. strandi Hrabě, 1936, is emended to specific rank. Trichodrilus icenorum Beddard, 1920 is regarded as a synonym of T. allobrogum Claparède, 1862. The extension of pharyngeal glands is demonstrated to be a fixed or a variable character depending on the species. Presence or absence of posterior lateral blood vessels or pattern of anterior blood vessels are not well documented for a significant proportion of the species and these characters need to be tested for environmentally induced variation. Taxonomic value of structural traits is strengthened against characters related to size. Thus, a key to the species of the genus is provided, emphasising such structural characters.
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    URL: http://dx.doi.org/10.1007/BF00142310
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    The damselfishes (Pisces: Osteichthyes: Pomacentridae) of Peninsular Malaysia and Singapore: systematics, ecology and conservation (1994)
    Springer
    Hydrobiologia 285 (1994), S. 49-58 
    Details
    ISSN: 1573-5117
    Keywords: Pomacentridae ; Malaysia ; Singapore ; taxonomy ; ecology ; conservation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Damselfishes (Pomacentridae) are among the most common of reef fishes in tropical seas, comprising 320 species in all, with 268 species alone in the Indo-West Pacific regions. 15 genera (Abudefduf, Amblyglyphidodon, Amphiprion, Chelioprion, Chromis, Chrysiptera, Dascyllus, Pristotis, Dischistodus, Hemiglyphidodon, Neoglyphidodon, Neopomacentrus, Plectroglyphidodon, Pomacentrus, Stegastes) and at least 39 species inhabit the waters of Peninsular Malaysia and Singapore. They are important ecologically because many species are extremely abundant in reefs, and also economically, as several are collected in large numbers for the lucrative aquarium trade. This demand has led to some fishermen using destructive methods in obtaining the fishes, to the point that original standing populations may not be recoverable. This threat poses a need for conservation of the reefs. The present study based primarily on fishes collected from the waters of Singapore and specimens from the Zoological Reference Collection at the National University of Singapore, will serve the dual purpose of establishing a current species list for Malaysia and Singapore, and to update and clarify the local taxonomy of the group. An annotated list (with localities) is provided of the known or reported species to aid studies on reefs.
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    URL: http://dx.doi.org/10.1007/BF00005653
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    Genetic diversity and systematic relationships in sweetpotato (Ipomoea batatas (L.) Lam.) and related species as revealed by RAPD analysis (1994)
    Springer
    Genetic resources and crop evolution 41 (1994), S. 165-173 
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    ISSN: 1573-5109
    Keywords: Convolvulaceae ; genetic diversity ; germplasm ; taxonomy ; polymerase chain reaction ; sweetpotato
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Fifteen 10mer primers, in combination with the Stoffel fragment, were used to detect random amplified polymorphic DNA (RAPDs) among 26 accessions of sweetpotato (I. batatas (L.) Lam.) from Oceania, Peru, the Philippines, and the United States and between 8 Ipomoea species from section Batatas. Phenetic and principal coordinate analysis of the 56 polymorphisms detected within the hexaploid I. batatas clearly delineated the South Pacific and the Peruvian sweetpotato lines. The two U.S. cultivars clustered with the Oceanic materials. Cladistic and phenetic analysis of 8 Ipomoea species supports previously published phylogenies based on morphological and RFLP data. Among the species examined, I. tabascana, I. trifida and the tetraploid forms of I. batatas from Mexico and Ecuador, including I. batatas var. apiculata, are the taxa most closely related to the cultivated hexaploid I. batatas. These findings support the utility of RAPD markers for evaluating genetic diversity in sweetpotato and for establishing taxonomic and evolutionary relationships in Ipomoea.
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    URL: http://dx.doi.org/10.1007/BF00051633
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    Pseudomoraria triglavensis gen. n., sp. n. (Copepoda, Harpacticoida) from a high-alpine reservoir in Slovenia (1994)
    Springer
    Hydrobiologia 294 (1994), S. 89-98 
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    ISSN: 1573-5117
    Keywords: Copepoda ; Harpacticoida ; taxonomy ; ecology ; high-alpine lakes ; Slovenia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Numerous specimens of Pseudomoraria triglavensis gen.n., sp.n. were collected from small, high-alpine, reservoir Močilec. The reservoir is situated in the centre of Triglav national park (NW Slovenia) at an altitude of 1690 m. The new genus differs from related genera Moraria, Morariopsis and Paramorariopsis by the reduced articulation of exopodites and endopodites in both sexes. It also differs from Moraria by possessing sexually dimorphic furcal rami. Detail taxonomic differences between these related genera and their ecology are discussed.
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    URL: http://dx.doi.org/10.1007/BF00016848
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    Conidiogenesis, nutritional physiology and taxonomy ofAureobasidium andHormonema (1994)
    Springer
    Antonie van Leeuwenhoek 65 (1994), S. 41-54 
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    ISSN: 1572-9699
    Keywords: black yeasts ; Aureobasidium ; Hormonema ; Kabatiella ; Pringsheimia ; Dothiora ; Dothidae ; Dothideaceae ; conidiogenesis ; physiology ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Diagnostic criteria for the distinction of the slightly osmophilic species,Aureobasidium pullulans, and the opportunistic pathogen on conifers,Hormonema dematioides, are provided. Reliable identification requires a combination of characters of conidiogenesis, expansion growth and assimilative abilities. Relationships with species ofKabatiella, and with the teleomorph generaPringsheimia, Dothidea andDothiora, all havingHormonema-like cultural states, are discussed. An identification key is provided.
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    URL: http://dx.doi.org/10.1007/BF00878278
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    Intraspecific metabolic diversity among strains ofBurkholderia cepacia isolated from decayed onions, soils, and the clinical environment (1994)
    Springer
    Antonie van Leeuwenhoek 65 (1994), S. 111-131 
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    ISSN: 1572-9699
    Keywords: BIOLOG ; coefficients of resemblance ; infraspecific variation ; Pseudomonas cepacia ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A collection of 218 strains ofBurkholderia cepacia (including 18% strain replicates) was assembled from organic soils, decayed onions, and clinical sources. Each strain was characterized for virulence to onion, catabolic ability using the Biolog GN microtiter plate, and several other behaviors. Overall test reproducibility was estimated at 98%. The results obtained using the Biolog GN system corresponded well to those obtained using standard methods. Three coefficients of resemblance (Gower similarity, pattern difference, and Jaccard similarity) were calculated and clustered by the group-average method. The sorted matrices and phenograms, while giving evidence of an underlying phenetic structure to theB. cepacia nomenspecies, gave little evidence of sorting by broad source of isolation. Strains isolated from within fields or samples were frequently found to be similar, however, strains isolated from fields with similar cropping histories were not. The Gower-transformed centroids of ordained clusters were projected in a principal coordinate system and estimates of disjunction were calculated. Strains ofB. cepacia were shown to be non-uniformly distributed in taxonomic space. Strains isolated by serial dilution on onion slices formed a tight phenetic cluster which includes the type strain of the nomenspecies and that of a synonymous group (Pseudomonas multivorans); the strains in this phenon were generally virulent to onion and were partially differentiated from others by pectolytic behavior and by the production of diffusible pigment on King's medium A. Further characterization should better resolve the taxonomy of the nomenspecies.
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    URL: http://dx.doi.org/10.1007/BF00871753
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    The Enchytraeid fauna of North Africa (1994)
    Springer
    Hydrobiologia 278 (1994), S. 53-66 
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    ISSN: 1573-5117
    Keywords: Enchytraeidae ; taxonomy ; distribution ; North Africa
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract As part of a survey of the Mediterranean enchytraeids, large numbers of samples were collected from a wide range of habitats at 38 localities of Tunisia and Algeria in 1989. Twenty species were identified belonging to six genera. Five species are new records for Tunisia and 17 are new for Algeria. Most of the recorded species are widely distributed throughout Europe, or even cosmopolitan, but some have a more restricted range. Fridericia caprensis has a circummediterranean distribution, Fridericia sardorum seems to be endemic to the western Mediterranean and Fridericia berninii is known only from the Balearic Islands and Algeria. Enchytraeus minutus bisetosus n. ssp. is described. A critical revision of some species is also provided.
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    URL: http://dx.doi.org/10.1007/BF00142311
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    An ultrastructural overview of tubificid spermatozoa (1994)
    Springer
    Hydrobiologia 278 (1994), S. 165-178 
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    ISSN: 1573-5117
    Keywords: spermatozoa ; Tubificidae ; oligochaete ultrastructure ; taxonomy ; phylogeny
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The spermatozoa of seven species of tubificid oligochaete were compared to those already described in order to supply spermatozoal characters for systematic work on Tubificidae. The spermatozoa of Clitellio arenarius (subfamily Tubificinae) resemble those of the two other known members of the subfamily (Tubifex tubifex and Tubificoides amplivasatus) in being of two different types and in showing the same morphology of acrosomes and nuclei. Among Phallodrilinae, the three gutless species Inanidrilus bulbosus, Inanidrilus leukodermatus and Olavius planus share with Bathydrilus formosus the shape of the nucleus and various characters of the acrosome, whereas Thalassodrilus prostatus is particular in having the acrosome vesicle external to the tube and the longest middle piece recorded in oligochaetes. Monopylephorus limosus and Rhizodrilus russus (Rhyacodrilinae) differ widely in acrosomal and nuclear characters: M. limosus has a twisted nucleus, whereas R. russus has an apically flanged nucleus with a conspicuous apical concavity and an endonuclear canal. The data published on spermatozoa of the Limnodriloidinae are reviewed.
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    URL: http://dx.doi.org/10.1007/BF00142325
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    Morphology of some species of the genus Aulodrilus Bretscher (1994)
    Springer
    Hydrobiologia 278 (1994), S. 7-15 
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    ISSN: 1573-5117
    Keywords: Oligochaeta ; Tubificidae ; Aulodrilus ; morphology ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The external and internal morphology of Aulodrilus limnobius Bretscher, 1899, Aulodrilus pluriseta (Piguet, 1906) and Aulodrilus japonicus Yamaguchi, 1953, and morphology of the setal apparatus of Aulodrilus pigueti were studied on new material from Russia and compared with various literature data. Besides the peculiar “wings” on bifid setae, dominance of asexual reproduction is regarded as a primary synapomorphy of the genus and is accompanied by an anterior shift of the whole reproductive system and a tendency to doubling the gonads. Naidid-like cocoons, with a single egg, are another element of this reproductive mode. Similar characters seem to have arisen independently in several groups of Oligochaeta.
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    URL: http://dx.doi.org/10.1007/BF00142307
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    A description of spermatozoan ultrastructure and some anatomical characters in Branchiobdella kozarovi Subchev, 1978 (Annelida: Clitellata), and review of the spermatozoan morphology within the genus (1994)
    Springer
    Hydrobiologia 278 (1994), S. 17-26 
    Details
    ISSN: 1573-5117
    Keywords: Annelida ; Clitellata ; Branchiobdella kozarovi ; taxonomy ; anatomy ; spermatozoan ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The use of spermatozoan ultrastructural morphology to produce a meaningful phylogeny requires a critical number of descriptions from representative species in a taxon. Branchiobdella spermatozoan morphology is considered to be aberrant within the Clitellata. The description of the spermatozoon of B. kozarovi has extended the information on interspecific variation in this genus. The spermatozoa of this species have an acrosome (16 µm long), nucleus (4.5 µm long), midpiece (1.5 µm long), and tail (158 µm long), with a total length of about 180 µm. The acrosome is a thick helix with about 15 gyres, contains an acrosome tube and acrosome vesicle which has branches penetrating into the central subacrosomal space. The acrosomal “button” is located on the anterior surface, with the “cork” and secondary tube at the posterior. The rod-shaped nucleus has a concavity in both the anterior and posterior surfaces. The midpiece has seven, parallel mitochondria twisted about the central axis. The centriolar remnant with an indistinct ninefold symmetry in cross section is located posterior to the mitochondria. The prominent central sheath extends from the mitochondria to the end of the flagellum, which has no end piece. The axoneme has glycogen granules located along its length, and an helical marginal fiber. A review of descriptions of spermatozoa of Branchiobdella shows some inconsistencies. The observations of two anterior nephridial pores and an eversible penis completes the anatomical characters of B. kozarovi used in current branchiobdellidan taxonomy.
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    On four new tropical and subtropical Lecane (Lecanidae, Monogononta, Rotifera) (1994)
    Springer
    Hydrobiologia 287 (1994), S. 243-249 
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    ISSN: 1573-5117
    Keywords: Rotifera ; new species ; taxonomy ; zoogeography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Four new tropical/subtropical species of Lecane are described. L. abanica n. sp. is recorded from Saudi Arabia and the Comoro Islands; L. minuta n. sp. and L. spiniventris n. sp. from the Sultanate of Brunei, and L. nelsoni n. sp. from Brazil. An attempt is made to include characters of the trophi in the diagnosis of these Lecane.
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    Taxonomic and zoogeographic considerations on Lecanidae (Rotifera: Monogononta) of the Balearic archipelago, with description of a new species, Lecane margalefi n.sp. (1994)
    Springer
    Hydrobiologia 288 (1994), S. 97-105 
    Details
    ISSN: 1573-5117
    Keywords: Rotifera ; new species ; Balearic archipelago ; taxonomy ; zoogeography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Twenty species of rotifers of the genus Lecane were found in inland fresh and brackish waterbodies of the Balearic archipelago L. margalefi n. sp. has been found in a semi-arid area of Majorca island, and it is probably endemic. It is an illoricate species related to the L. luna group by its foot morphology, but similar in shape and size to L. boorali Koste & Shiel. The taxonomy of some other species of the genus, recorded from the archipelago, is discussed (L. bifurca (Bryce), L. grandis (Murray), L. lamellata (Daday), L. latissima Yamamoto, L. ohioensis (Herrick), L. punctata (Murray), L. pyriformis (Daday)).
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    Keraladiaptomus rangareddyi a new genus and new species of Diaptominae (Copepoda, Calanoida, Diaptomidae) from a temporary pond in Mattam, Kerala State, India (1994)
    Springer
    Hydrobiologia 288 (1994), S. 119-128 
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    ISSN: 1573-5117
    Keywords: taxonomy ; Keraladiaptomus rangareddyi gen. nov. et sp. nov. ; Copepoda ; Calanoida ; India
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Calanoid copepods, belonging to the new genus and species Keraladiaptomus rangareddyi, were collected from temporary ponds in Kerala State, India. The new genus belongs to the family Diaptomidae, subfamily Diaptominae. It is described in detail and its affinity to the related genera, Arctodiaptomus Kiefer, 1932 and Eodiaptomus Kiefer, 1932, discussed.
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    Importance of the genital operculum in the taxonomy of South American Diaptomidae (Copepoda, Calanoida) (1994)
    Springer
    Hydrobiologia 292-293 (1994), S. 143-147 
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    ISSN: 1573-5117
    Keywords: Calanoida ; Diaptomidae ; South America ; Venezuela ; taxonomy ; genital operculum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract For the first time, the structures of the female genital field are described and compared among ten species of Venezuelan diaptomids. A nomenclature for these structures is suggested, and there is a preliminary report on the interspecific differences observed in one of these structures, the genital operculum.
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    URL: http://dx.doi.org/10.1007/BF00229934
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    Lipids of heliobacteria are characterised by a high proportion of monoenoic fatty acids with variable double bond positions (1994)
    Springer
    Photosynthesis research 41 (1994), S. 67-74 
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    ISSN: 1573-5079
    Keywords: phototrophic bacteria ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The fatty acid composition and lipid pattern of six strains of heliobacteria have been analysed. The results were fairly uniform for all strains. Phosphatidyl ethanolamine and phosphatidyl glycerol were the dominating lipids found, with the former as the major one. No glycolipids were detected. The general fatty acid pattern was dominated by acids of chain length C16 to C18. An unusually large proportion of monoenoic acids was seen, with up to four positional isomers for each chain length. Methyl branched (iso) fatty acids were present, but not cyclopropyl or hydroxy fatty acids nor fatty alcohols.
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    URL: http://dx.doi.org/10.1007/BF02184146
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    On the classification of C6 (tuberculum sextum) of the mandibular molars (1994)
    Springer
    Human evolution 9 (1994), S. 231-247 
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    ISSN: 1824-310X
    Keywords: Cusp six ; lower molars ; dental morphology ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Cusp six (C6) of the mandibular molars is well-represented in the Hominoid fossil record and occurs with irregular frequency in the various geographic populations of modernHomo as well as in many of the extant non-human primates. The literature reveals considerable controversy and confusion related to C6 anatomic location, definitions and scoring criteria, and a major problem exists in deciding what actually is the “real” or “true” C6, especially relative to variable hypoconulid (C5) expression (i.e., reduction forms and the “divided hypoconulid”). A method is proposed that involves dual 4-point ranking (absent, small, medium, large) and reporting of C5–C6 covariation within a framework of 13 morphological expressivity categories. When applied to 3 different human populations, the method provided a reasonably clear picture of the actual C5 and C6 covariation patterns observed in the mandibular molar dentition. Data obtained from this exercise illustrated that inter- and intrapopulation differences in reported C6 frequencies could be associated with variable scoring criteria as well as with different levels of occlusal attrition and age distribution of the samples.
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    URL: http://dx.doi.org/10.1007/BF02437929
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