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  • 1
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 12 no. 2, pp. 169-179
    Publication Date: 2024-01-12
    Description: A revaluation is made of the genus Chaetomium which comprises about 300 species, and relatives classified in several genera of the Chaetomiaceae, Melanosporaceae and Microascaceae. The classification is based on the size, shape and symmetry of the ascospores, the number of the germ pores, the shape of the asci (clavate, obovate, fusiform or cylindrical) and the size, shape, structure and ornamentation of the ascomata.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Macromolecules 1 (1968), S. 437-441 
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of organic chemistry 28 (1963), S. 3269-3272 
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 92 (1973), S. 105-113 
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Die 17 auf ihr Kompatibilitätsverhalten bis dahin nicht untersuchten Arten der Ascomycetengattung Chaetomium sind alle selbstfertil. Dies bestätigt, daß Heterothallie innerhalb dieser Gattung verhältnismäßig selten ist. In einigen Fällen wurde Selbstfertilität auch für Arten festgestellt, die von anderen Autoren als heterothallisch angegeben waren. Ein relativ hoher Prozentsatz steriler Monospor-Kulturen wurde in einem Stamm von C. funicolum (14%) und in einem Stamm von C. gangligerum (42%) gefunden. Monospor-Kreuzungen zwischen heterothallischen Stämmen von C. difforme und C. nozdrenkoae beziehungsweise zwischen C. olivaceum und C. subaffine ergaben fertile Perithecien. Die Vertreter der interfertilen Arten stehen sich auch in ihrer Morphologie nahe. Monospor-Kulturen von heterothallischen C. angustispirale, respektive C. elatum lassen sich mit keinen anderen untersuchten Arten kreuzen.
    Notes: Summary In 17 species of the ascomycetous genus Chaetomium, not previously investigated for compatibility, only self-fertility was observed. This confirms the fact that heterothallism is relatively rare within the genus. It could not be confirmed for all of the species reported previously by other workers. A relatively high percentage of steril mono-spore cultures have been found in a strain of C. funicolum (14%) and in a strain of C. gangligerum (42%). Mono-spore crosses between the heterothallic C. difforme and C. nozdrenkoae as well as between C. olivaceum and C. subaffine produced fertile perithecia in opposite combinations. Representatives of crossable species are similar in their morphological characteristics. It is not possible to cross mono-spore isolations of C. angustispirale and C. elatum respectively with such ones of any other species.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 83 (1972), S. 172-178 
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Weitere Ergebnisse über das Vorkommen von Homo- und Heterothallie in 50 Stämmen aus 18 Arten von Chaetomium Kunze ex Fr. werden mitgeteilt. Unter 13 in dieser Richtung noch nicht untersuchten Arten wurde bei 11 Homo- und bei 2 (C. nozdrenkoae Serg. und C. subaffine Serg.) Heterothallie gefunden. Unter den 18 untersuchten Stämmen von C. elatum Kunze ex Fr. gab es Homosowie auch Heterothallie, während für die 6 untersuchten Stämme von C. cochliodes Palliser, entgegen der Auffassung anderer Autoren, Homothallie nachgewiesen wurde. Bei allen umtersuchten heterothallischen Arten und Stämmen konnten je zwei Kreuzungstypen nachgewiesen werden.
    Notes: Summary Further data are given about the occurrence of homo- and heterothallism in Chaetomium Kunze ex.Fr. 50 strains including 18 species were examined, monospore cultures being isolated by micromanipulation. Among 13 species, not previously investigated in this respect, heterothallism was noted in only 2 cases (C. nozdrenkoae Serg. and C. subaffine Serg.). In 18 strains of C. elatum Kunze ex Fr. homothallism as well as heterothallism was observed, while all 6 strains of C. cochliodes Palliser, in contradiction to other investigators, were identified as homothallic. Two opposite mating types were indicated in all heterothalic species and strains.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of industrial microbiology and biotechnology 19 (1997), S. 7-11 
    ISSN: 1476-5535
    Keywords: Keywords: cyclopeptolide; destruxin; helvolic acid; Metarhizium anisopliae; cyclodepsipeptide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The effect of the cyclopeptolide 90-215 on the production of destruxins and helvolic acid in various Metarhizium anisopliae strains was investigated. Addition of 10.0 mg L−1 of the cyclopeptolide to the production media increased the production of destruxins by 1.3-fold to 12.5-fold, whereas the production of helvolic acid was decreased by 1.6- to 11.0-fold. Fifty liters were fermented in Erlenmeyer flasks with the strain 86-23766 grown in medium supplemented with cyclopeptolide 90-215. The procedure for isolation and purification of destruxins was simplified due to the higher yield of destruxins. Good quantities of destruxins were obtained from this fermentation. The results of our studies show that the addition of small quantities of a suitable compound can drastically alter the production and relative ratios of secondary metabolites. This can have a wide range of potential applications in the area of metabolite production.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of industrial microbiology and biotechnology 17 (1996), S. 397-401 
    ISSN: 1476-5535
    Keywords: cyclosporins ; cyclosporin-like peptolides ; fungal taxa ; Acremonium luzulae ; Leptostroma anamorph ofHypoderma eucalyptii
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Apart from 17 previously listed fungal taxa producing cyclosporin A and its natural congeners B to Z, several additional and taxonomically diverse strains producing the single novel component [Thr2, Leu5, Leu10]cyclosporin or cyclosporin-like peptolides (eg SDZ 214-103=[Thr2, Leu5, D-Hiv8, Leu10]cyclosporin) have recently been described. We report here the isolation of two further and novel cyclosporins, [Thr2, Leu5, Ala10]cyclosporin (2) and [Thr2, Ile5] cyclosporin (3), from strains classified asAcremonium luzulae (Fuckel) W Gams andLeptostroma anamorph ofHypoderma eucalyptii Cooke & Harkn, respectively. In both new strains the usual pattern of cyclosporins A to Z is not found. The structure elucidations of2 and3 are based on NMR spectroscopy, and biological data (immunosuppressive activity, cyclophilin-binding affinity and antifungal effects) are presented.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 256 (1978), S. 191-192 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Applied microbiology and biotechnology 3 (1976), S. 125-133 
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Cyclosporin A and C are new antifungal antibiotics fromTrichoderma polysporum (Link ex Pers.) Rifai. The metabolites are produced in submerged culture and are extracted therefrom by organic solvents. Cyclosporin A is a nonpolar cyclic peptide with a molecular weight of 1202.6. The cyclosporins exhibit a narrow spectrum of antifungal activity and in addition have immunosuppressive properties.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 28 (1990), S. 205-217 
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Addition chlorination of cis-1,4-polybutadiene in the presence of acetic acid as a cosolvent resulted in the formation of head-to-head vinyl chloride-vinyl acetate copolymer. Chlorine analysis, IR, and NMR spectra of the chlorinated polybutadiene indicated that reaction was primarily double bond addition; there was little evidence for substitutive chlorination. Acetate was incorporated by nucleophilic participation of the acetic acid cosolvent. The extent of incorporation of the acetate group in the polymer chain was a function of the acetic acid concentration. Both the glass transition temperatures and the densities of the chloroacetylated polymers decreased as the degree of acetylation increased.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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