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  • Articles  (32)
  • taxonomy
  • Springer  (32)
  • American Chemical Society (ACS)
  • Wiley-Blackwell
  • 2020-2024
  • 2015-2019
  • 2005-2009
  • 1990-1994  (32)
  • 1980-1984
  • 1994  (32)
  • Biology  (32)
  • 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
    Electronic Resource
    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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