ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    Digitale Medien
    Digitale Medien
    Polar lipid composition in the classification of Arthrobacter and Microbacterium (1982)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 15 (1982), S. 0 
    Details
    ISSN: 1574-6968
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1574-6968.1982.tb00238.x
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    A phylogenetic analysis of the genus Catellatospora based on 16S ribosomal DNA sequences, including transfer of Catellatospora matsumotoense to the genus Micromonospora as Micromonospora matsumotoense comb. nov. (1999)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 178 (1999), S. 0 
    Details
    ISSN: 1574-6968
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Phylogenetic studies based on the 16S ribosomal gene sequences showed that members of the genus Catellatospora revealed phylogenetic heterogeneity within the family Micromonosporaceae as well as a heterogeneous menaquinone composition. Among them, Catellatospora matsumotoense was closely related to members of the genus Micromonospora, indicating that this organism should be excluded from the genus Catellatospora. On the basis of classical taxonomic characteristics and phylogenetic evidence, Catellatospora matsumotoense is proposed to be transferred to the genus Micromonospora as M. matsumotoense comb. nov.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1574-6968.1999.tb08698.x
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Rapid identification of streptomycetes by artificial neural network analysis of pyrolysis mass spectra (1993)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 114 (1993), S. 0 
    Details
    ISSN: 1574-6968
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Abstract An artificial neural network was trained to distinguish between three putatively novel species of Streptomyces using normalised, scaled pyrolysis mass spectra from three representative strains of each of the taxa, each sampled in triplicate. Once trained, the artificial neural network was challenged with spectral data from the original organisms, the ‘training set’, from additional members of the putative novel taxa and from over a hundred strains representing six other actinomycete genera. All of the streptomycetes were correctly identified but many of the other actinomycetes were mis-identified. A modified network topology was developed to recognise the mass spectral patterns of the non-streptomycete strains. The resultant neural network correctly identified the streptomycetes, whereas all of the remaining actinomycetes were recognised as unknown organisms. The improved artificial neural network provides a rapid, reliable and cost-effective method of identifying members of the three target streptomycete taxa.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1574-6968.1993.tb06560.x
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    Distribution of oxoacyl synthase homology sequences within Streptomyces DNA (1994)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 118 (1994), S. 0 
    Details
    ISSN: 1574-6968
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Abstract A genomic DNA sequence of Streptomyces strain ISP 5485 was cloned, sequenced and compared with corresponding information from nucleic acid data banks. The DNA sequence was unique, but showed homology to DNA coding for the condensing enzyme, 2-oxoacyl synthase, of the deoxyerythronolide B synthase complex (DEBS) from Saccharopolyspora erythraea NRRL 2338. A subfragment of the sequenced DNA was used to construct a gene-specific probe that formed part of the putative 2-oxoacyl synthase gene. The PCR-amplified and labelled probe was used in hybridization experiments involving 33 streptomycete strains that produced different classes of antibiotics. The probe showed widespread homology with DNA considered to be part of analogous genes within genomes of different polyketide producers. The implications of the probe homology to bacterial chromosomal DNA are discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1574-6968.1994.tb06847.x
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    Selective isolation of members of the Streptomyces violaceoruber clade from soil (2005)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 245 (2005), S. 0 
    Details
    ISSN: 1574-6968
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Large numbers of filamentous actinomycetes which formed distinctive red coloured colonies were isolated from three out of four composite soil samples using a medium designed to be selective for members of the Streptomyces violaceoruber clade, a taxon which includes the model organisms “Streptomyces coelicolor” A3(2) and “Streptomyces lividans” 66. The isolation medium, dextran-histidine-sodium chloride-mineral salts agar supplemented with antibacterial and antifungal antibiotics, also supported the growth of representatives of the S. violaceoruber clade. One hundred and ninety one representatives of the isolates that produced red colour colonies on the isolation medium were distributed into four colour groups based on their ability to form distinctive pigments and morphological properties typical of members of the S. violaceoruber clade, an assignment that was confirmed by corresponding 16S rRNA gene sequencing studies. The selective isolation and characterisation procedures used in the present investigation provide a practical means of determining the taxonomic diversity, geographical distribution and roles of representatives of the S. violaceoruber clade in natural habitats.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1016/j.femsle.2005.03.028
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Mycolic acid patterns of some species of Mycobacterium (1984)
    Springer
    Archives of microbiology 139 (1984), S. 225-231 
    Details
    ISSN: 1432-072X
    Schlagwort(e): Mycolic acids ; Mycobacteria ; Thin-layer chromatographic analysis ; Acid methanolysates ; Alka-line methanolysates ; Chemotaxonomy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Representative strains of some species of Mycobacterium were degraded by both acid and alkaline methanolysis. Two-dimensional thin-layer chromatography was used to determine the patterns of mycolic acids and other long-chain components in these methanolysates. Patterns composed of α-, methoxy- and ketomycolates were found in Mycobacterium asiaticum, Mycobacterium bovix, Mycobacterium gastri, Mycobacterium gordonae, Mycobacterium kansasii, Mycobacterium marinum and Mycobacterium tuberculosis; a representative of Mycobacterium thermoresistibile also contained lower molecular weight α′-mycolates in addition to these three acids. In representatives or Mycobacterium avium, Mycobacterium intracellulare, Mycobacterium nonchromogenicum, “Mycobacterium novum”, Mycobacterium paratuberculosis, Mycobacterium scrofulaceum, Mycobacterium terrae, Mycobacterium xenopi, and Mycobacterium sp. MNC 165 α- and ketomycolates were accompanied by ω-carboxymycolates and 2-eicosanol and homologous alcohols which are derived from wax-ester mycolates. Mycobacterium fortuitum and “Mycobacterium giae” contained α′- and epoxymycolates and both serovars of Mycobacterium simiae had a very characteristic pattern of α-, α′- and ketomycolic acids. Comparison with data for other mycobacteria showed the chemotaxonomic significance of these mycolic acid patterns.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00402005
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Lipids in the classification of Nocardioides: Reclassification of Arthrobacter simplex (Jensen) lochhead in the genus Nocardioides (Prauser) emend. O'Donnell et al. as Nocardioides simplex comb. nov. (1982)
    Springer
    Archives of microbiology 133 (1982), S. 323-329 
    Details
    ISSN: 1432-072X
    Schlagwort(e): Chemotaxonomy ; Lipids ; Nocardioides ; Arthrobacter simplex ; Arthrobacter tumescens ; Nocardioides simplex comb. nov.
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Representative strains of Nocardioides, Arthrobacter simplex and Arthrobacter tumescens were degraded by acid methanolysis and the fatty acid esters released examined by thin-layer and gas chromatography. Branchedchain 14-methylpentadecanoic acid (iso-16) was the predominant component in all but one of the Nocardioides strains. Arthrobacter simplex also contained major amounts of this acid whereas A. tumescens had only minor amounts. All of the test strains possessed 15 and 17 carbon straight chain acids, tuberculostearic acid (10-methyloctadecanoic acid) and its 17 and 18-carbon homologues. The fatty acid profiles of Nocardioides strains lacked 13-methyltetradecanoic and heptadecanoic acids which were both present in Arthrobacter simplex and Arthrobacter tumescens. The profiles of these latter organisms were quantitatively different from each other. The polar lipids of the test strains all contained diphosphatidylglycerol and phosphatidylglycerol but only Arthrobacter tumescens contained phosphatidylinositol and three unidentified polar lipids. Nocardioides and Arthrobacter simplex strains all contained two very characteristic closely related polar lipids. All of the test strains contained tetrahydrogenated menaquinones with eight isoprene units as the major isoprenologue. The results of the present study support the integrity of the genus Nocardioides and provide a reliable way of distinguishing it from other actinomycetes, such as Streptomyces, which also have LL-diaminopimelic acid and glycine in the peptidoglycan. The lipid data, together with results from chemical, genetic and phage host range studies, provide sufficient grounds for the transfer of Arthrobacter simplex to Nocardioides as Nocardioides simplex comb. nov. An emended description of the genus Nocarioides is given.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00521299
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Numerical and chemical classification ofStreptosporangium and some related actinomycetes (1993)
    Springer
    Antonie van Leeuwenhoek 64 (1993), S. 387-429 
    Details
    ISSN: 1572-9699
    Schlagwort(e): Streptosporangium ; numerical taxonomy ; chemical taxonomy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract One hundred and seventeen streptosporangia from soil were compared with marker strains of the familyStreptosporangiaceae for many phenotypic properties. The data were examined using the Jaccard, pattern and simple matching coefficients with clustering achieved using average, complete and single linkage algorithms. Particular confidence was placed in the product of the pattern, average linkage analysis given the sharp definition of aggregate groups and clusters and a combination of low test error and high cophenetic correlation values. The test strains were assigned to five aggregate groups that were equated with the generaStreptosporangium (group A),Microbispora (group B),Planobispora andPlanomonospora (Group C),Kutzneria (neéStreptosporangium viridogriseum (group D), andMicrotetraspora (group E). The streptosporangia, both isolates and marker strains, were assigned to 5 major, 7 minor and 18 single membered clusters. Representative streptosporangia examined for chemical markers were characterised by the presence ofmeso-diaminopimelic acid in whole-organism hydrolysates, complex mixtures of straight- and branched chain fatty acids, di- and tetrahydrogenated menaquinones as predominant isoprenologues, and complex polar lipid patterns containing diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylmethylethanolamine, phosphatidylinositol, phosphatidylinositol mannosides and uncharacterised components. The chemical and numerical data support the taxonomic integrity of the validly described species ofStreptosporangium and suggest that the genus is markedly underspeciated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00873094
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    Sequence analysis of 16S rRNA genes amplified from two ribosomal RNA gene clusters of Bifidobacterium bifidum (1999)
    Springer
    Antonie van Leeuwenhoek 75 (1999), S. 329-333 
    Details
    ISSN: 1572-9699
    Schlagwort(e): Bifidobacterium bifidum ; rRNA operon ; 16S rDNA
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Two rRNA gene clusters were detected in the genome of Bifidobacterium bifidum KCTC 3202T using Southern blot analysis. To analyse the sequences of the 16S rRNA genes from rrnA and rrnB, 16S rDNAs were amplified by PCR using DNA fragments purified from gel slices containing each of the rRNA gene clusters. The amplified 16S rDNAs from rrnA and rrnB were cloned into vectors and three clones of each gene sequenced. The resultant sequences were confirmed by direct sequencing of the 16S rDNAs from rrnA and rrnB. Sequence differences were not found between rrnA and rrnB in 1488 bp of the 16S rRNA genes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1002025100444
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Biosystematic studies on novel streptomycetes from soil (2000)
    Springer
    Antonie van Leeuwenhoek 77 (2000), S. 337-353 
    Details
    ISSN: 1572-9699
    Schlagwort(e): minimal standards ; phenetic classification ; selective isolation ; streptomycetes
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Members of three putatively novel Streptomyces species, designated Streptomyces groups A, B and C, were repeatedly isolated from environmental samples taken from four hay meadow plots at Cockle Park Experimental Farm, Northumberland (UK). Representative isolates were found to have properties consistent with their classification in the genus Streptomyces and were recovered in three taxa using different phenotypic criteria, namely morphological and pigmentation properties, rapid enzyme tests, and whole-organism fatty acid, protein electrophoretic and pyrolysis mass-spectrometric data. The isolates were rapidly characterised as three taxonomic groups using pyrolysis mass spectrometry. The three taxa were also distinguished from one another and from validly described species of Streptomyces using rapid enzyme tests based on the fluorophores 7-amino-methylcoumarin and 4-methylumbelliferone, and computer-assisted identification procedures. The results indicate that selective isolation and rapid characterisation of streptomycetes using pyrolysis mass spectrometry provide a practical way of determining the phenotypic species diversity of streptomycetes in natural habitats. The experimental data also indicate that representative sampling of cultivable streptomycetes from soil can best be achieved using a multi-step extraction procedure coupled with the use of selective isolation procedures.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1002682728517
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...