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  • 1990-1994  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Chemotaxonomy of the genus Talaromyces (1990)
    Springer
    Antonie van Leeuwenhoek 57 (1990), S. 179-189 
    Details
    ISSN: 1572-9699
    Keywords: heat-resistant moulds ; chemotaxonomy ; HPLC ; TLC ; mycotoxins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Species of the ascomycetous genus Talaromyces have been examined for profiles of secondary metabolites on TLC. The greatest number of specific metabolites were produced on oatmeal-, malt extract- and yeast-extract sucrose agars. Profiles of intracellular secondary metabolites produced on oatmeal agar were specific for each species and provided a means of simple differentiation of the taxa. Examination of the most important species using high performence liquid chromatography (HPLC) allowed to solve some taxonomic problems. Known mycotoxins are produced by T. stipitatus (duclauxin, talaromycins, botryodiploidin), T. stipitatus chemotype II (emodin), T. panasenkoi (spiculisporic acid), T. trachyspermus (spiculisporic acid), T. trac macrosporus (duclauxin) and T. wortmannii (rugulosin). Wortmannin is produced by an atypical strain of T. flavus but not T. wortmannii. Several other secondary metabolites were discovered for the first time in the following species: Glauconic acid is produced by T. panasenkoi, T. ohiensis and T. trachyspermus; vermiculine by T. ohiensis; duclauxin by T. flavus var. macrosporus and the mitorubrins by T. flavus and T. udagawae. The profiles of secondary metabolites support the established taxonomy of the species based on morphology, showing the genetic stability of profiles of secondary metabolites in Talaromyces. Two new taxa are proposed: T. macrosporus comb. nov. (stat. anam. Penicillium macrosporum stat. nov.), and Penicillium vonarxii, sp. nov. for the anamorph of T. luteus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00403953
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Secondary metabolites ofPenicillium bilaii strain PB-50 (1994)
    Springer
    Mycopathologia 127 (1994), S. 19-27 
    Details
    ISSN: 1573-0832
    Keywords: Gliotoxin ; Hyalodendrin ; Penicillium bilaii ; PB-50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A phosphate-solubilizing strain ofPenicillium bilaii was tested for the production of gliotoxin and other toxic compounds. The strain was fermented under five different conditions to allow the expression of various metabolites, including gliotoxin. These included Czapek-yeast extract medium under both shaken and still conditions as well as Czapek-yeast extract/malt extract/peptone medium and sucrose/glycerol medium in shake flasks. In addition, culture filtrate from an industrial fermentation of the fungus was examined. No gliotoxin was produced in any of the media. No other expectedP. bilaii metabolites were found. Three compounds were identified in all samples: dibutyl phthalate, 1-(4-hydroxy-phenyl)ethanone and 4-hydroxy-3,6-dimethyl-2H-pyran-2-one. The production of other metabolites was dependent on the culture conditions. Two hyalodendrin derivatives were found in some fermentations and two related compounds were tentatively identified. None of the compounds found have been reported as toxic. The identity of the culture was confirmed by comparison with the ex-type culture ofP. bilaii.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01104007
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    Paper (German National Licenses)
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  • 3
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    Unknown
    Environmental mycology and its importance to public health (1992)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: No abstract available
    Keywords: Life Sciences (General)
    Type: Journal of medical and veterinary mycology : bi-monthly publication of the International Society for Human and Animal Mycology (ISSN 0268-1218); Volume 30 Suppl 1; 287-305
    Format: text
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