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  • Artikel  (68)
  • taxonomy
  • Springer  (68)
  • American Chemical Society (ACS)
  • Wiley-Blackwell
  • 2020-2024
  • 2015-2019
  • 2005-2009
  • 1990-1994  (68)
  • 1980-1984
  • 1994  (32)
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  • Biologie  (68)
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  • Springer  (68)
  • American Chemical Society (ACS)
  • Wiley-Blackwell
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  • 2020-2024
  • 2015-2019
  • 2005-2009
  • 1990-1994  (68)
  • 1980-1984
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  • 1
    Digitale Medien
    Digitale Medien
    Reply to Sandgren and Smol: further discussion on chrysophyte cyst taxonomy (1993)
    Springer
    Journal of paleolimnology 9 (1993), S. 63-68 
    Details
    ISSN: 1573-0417
    Schlagwort(e): Chrysophyceae ; stomatocysts ; membrane topography ; biogenic silica deposition ; surface pattern ; taxonomy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Geologie und Paläontologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00680036
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  • 2
    Digitale Medien
    Digitale Medien
    Synonymy of the yeast generaWingea andDebaryomyces (1994)
    Springer
    Antonie van Leeuwenhoek 66 (1994), S. 337-342 
    Details
    ISSN: 1572-9699
    Schlagwort(e): Debaryomyces ; phylogeny ; ribosomal RNA ; taxonomy ; Wingea ; yeasts
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00882770
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  • 3
    Digitale Medien
    Digitale Medien
    Molecular taxonomy of Gram-positive moderately halophilic cocci (1993)
    Springer
    Cellular and molecular life sciences 49 (1993), S. 1055-1058 
    Details
    ISSN: 1420-9071
    Schlagwort(e): Moderate halophiles ; taxonomy ; Salinicoccus roseus ; Marinococcus hispanicus
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract The Gram-positive moderately halophilic cocci validly described up to date areMicrococcus halobius, Sporosarcina halophila, Marinococcus halophilus, Marinococcus albus, Marinococcus hispanicus, and the recently proposedSalinicoccus roseus. Our chemotaxonomic studies on these bacteria have revealed thatMarinococcus hispanicus should be placed in the genusSalinicoccus. DNA-DNA hybridization studies showed that this species should be considered as a separate species ofS. roseus. Thus, we have proposed transferring it to the genusSalinicoccus, asS. hispanicus. Besides, phenotypic and chemotaxonomic features of the culture collection moderate halophilesMicrococcus sp. strains CCM 168 and CCM 1405 indicate that they should be included in the speciesSalinicoccus roseus. The description of this species was based only on one strain.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01929913
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  • 4
    Digitale Medien
    Digitale Medien
    Phylogenetic influences in microbial hydroxylation of terpenoids (1994)
    Springer
    World journal of microbiology and biotechnology 10 (1994), S. 88-92 
    Details
    ISSN: 1573-0972
    Schlagwort(e): Intelligent screening ; microbial hydroxylation ; multivariate analyses ; taxonomy ; terpenoids
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00357570
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  • 5
    Digitale Medien
    Digitale Medien
    Dabbing and shooting of benzo- and naphthoquinone secretions: Defensive strategies of bark-inhabiting aleocharine (col.: Staphylinidae) and tenebrionid (col.: Tenebrionidae) beetle larvae (1993)
    Springer
    Journal of chemical ecology 19 (1993), S. 1337-1354 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Coleoptera ; Staphylinidae ; Tenebrionidae ; larvae ; defensive glands ; quinone ; naphthoquinone ; taxonomy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The abdominal glands of three bark-inhabiting larvae of generaBolitochara, Leptusa (Staphylinidae), andHypophloeus (Tenebrionidae) were studied chemically and morphologically. Behavior of the larvae indicated that secretion is emitted only after severe disturbance of the larvae. These mechanical contacts may also occur incidentally with coinhabiting nonpredatory arthropods when the beetle larvae move within small interstices under bark. Depending on the species, the secretions contained 1,4-benzoquinone derivatives and three 6-alkyl-naphthoquinones dissolved within various alkanes, alkenes, ethyl-, isopropyl-, and isoamylesters. More erratically distributed gland constituents also detected were acetophenone, benzyl propionate, and methyl hydroxybenzoate. In the laboratory, synthetic quinone-containing solutions simulating those found inLeptusa andBolitochara larvae acted as strong topical irritants and caused further damage to last-stageCalliphora vomitoria larvae if hydrocarbons or esters were used as solvents. The natural secretions ofHypophloeus versipellis elicited considerable mortality in two subcortical sciarid larvae cooccurring with tenebrionid larvae. Bioassay and secretion chemistry of the Staphylinidae/Tenebrionidae larval secretions indicated that they are typical defensive secretions that act topically. Morphological data characterized Bolitocharini larvae as possessing protuberant abdominal tergites supplied with an interiorly situated gland reservoir. After mechanical contact, the defensive secretion is topically applied to other arthropods by dabbing this tergal protuberance on targets. The defensive gland ofHypophloeus versipellis is unusual in possessing a movable reservoir opening situated at the anterior border of tergite IX. By this peculiar gland morphologyHypophloeus larvae are capable of shooting secretion droplets frontally from their slightly depressed dorsal abdominal surface without bending their abdominal tips dorsally. This seems an adaptation to the interstitial habitat of the larvae. The types of defensive glands and their phylogenetic value in Aleocharinae/Tenebrionidae larvae are discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00984880
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  • 6
    Digitale Medien
    Digitale Medien
    DNA amplification fingerprinting of the Azolla-Anabaena symbiosis (1993)
    Springer
    Plant molecular biology 21 (1993), S. 363-373 
    Details
    ISSN: 1573-5028
    Schlagwort(e): eukaryotic ; arbitrary oligonucleotide primer ; PCR ; prokaryotic ; silver staining ; taxonomy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The Azolla-Anabaena symbiosis has been used for centuries as a nitrogen biofertilizer in rice paddies. Genetic improvement of the symbiosis has been limited by the difficulty in identifying Azolla-Anabaena accessions and Anabaena azollae strains. The recently developed technique of DNA amplification fingerprinting (DAF) was applied to this problem. DAF uses single, short, oligonucleotide primers of arbitrary sequence to direct amplification of a characteristic set of DNA products by a thermostable DNA polymerase in a thermocycling reaction. The products are separated in polyacrylamide gels and detected by silver staining. DAF could easily distinguish and positively identify accessions of Azolla-Anabaena with DNA extracted from the intact symbioses. The contribution of prokaryotic Anabaena sequences to the fingerprint of the intact symbioses, however, ranged from 0 to 77%, depending on the primer sequence. Therefore, DNA extracted from the intact symbioses would not be suitable for Azolla taxonomy studies. The fingerprints of Anabaena strains isolated by sucrose gradient centrifugation from different species of Azolla could be easily distinguished, and DAF patterns were used to confirm the maternal pattern of transmission of Anabaena in a sexual hybrid. Template DNA extracted from roots was used to produce fingerprints for Azolla without interference from the microsymbiont. Comparison of the patterns from the parents and a hybrid gave strong evidence confirming sexual hybridization.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00019951
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  • 7
    Digitale Medien
    Digitale Medien
    Three species of rust fungi (Uredinales) from Okinawa, Japan (1994)
    Springer
    Mycoscience 35 (1994), S. 125-129 
    Details
    ISSN: 1618-2545
    Schlagwort(e): rust fungus ; taxonomy ; Puccinia tarennicola ; Uredinales ; Uredo daphniphylli ; Uredo pipturi
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02318488
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  • 8
    Digitale Medien
    Digitale Medien
    Pollen diameter and fertility in nine species ofPuccinellia (Poaceae) (1994)
    Springer
    Plant systematics and evolution 191 (1994), S. 161-170 
    Details
    ISSN: 1615-6110
    Schlagwort(e): Poaceae ; Puccinellia ; Pollen maximum diameter ; pollen fertility ; taxonomy ; Flora of the Iberian Peninsula
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00984662
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  • 9
    Digitale Medien
    Digitale Medien
    Isoenzyme evidence on the systematics ofHordeum sectionMarina (Poaceae) (1994)
    Springer
    Plant systematics and evolution 191 (1994), S. 213-226 
    Details
    ISSN: 1615-6110
    Schlagwort(e): Poaceae ; Hordeum ; Isoenzymes ; taxonomy ; phylogenetic species ; sibling species
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00984666
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  • 10
    Digitale Medien
    Digitale Medien
    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
    Schlagwort(e): Lichenized fungi ; Lecanoraceae ; Lecanora epibryon ; L. subimmersa ; Chemotaxonomy ; biogeography ; taxonomy ; xanthones
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00984667
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