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Cyathin, a new antibiotic complex produced by Cyathus helenae

Author: A D Allbutt; W A Ayer; H J Brodie; B N Johri; H Taube
Edition/Format: Downloadable article Downloadable article : English
Publication:Canadian Journal of Microbiology, v17 n11 (19711101) 1401-1407
Other Databases: WorldCat
Summary:
The fungus Cyathus helenae Brodie (Gasteromycetes) produces a complex of antibiotic substances collectively called cyathin. Highest yields were obtained when the fungus was grown at room temperature for 25 days on a chemically defined liquid medium in static culture. The action spectrum of cyathin (and its components) was determined by placing cyathin-bearing paper discs on agar plates seeded with the microorganisms  Read more...
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Document Type: Article
All Authors / Contributors: A D Allbutt; W A Ayer; H J Brodie; B N Johri; H Taube
ISSN:0008-4166
Language Note: English
Unique Identifier: 5140453800
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Abstract:

The fungus Cyathus helenae Brodie (Gasteromycetes) produces a complex of antibiotic substances collectively called cyathin. Highest yields were obtained when the fungus was grown at room temperature for 25 days on a chemically defined liquid medium in static culture. The action spectrum of cyathin (and its components) was determined by placing cyathin-bearing paper discs on agar plates seeded with the microorganisms being tested. The cyathin complex is active against actinomycetes, bacteria (gram-positive as well as gram-negative), and some fungi, including dermatophytes. Weaker antimicrobial activity is also shown by C. striatus (Huds.) Willd. ex Pers., C. poeppigii L., and C. limbatus L. Seven different compounds have been isolated from the cyathin complex: 2,4,5-trihydroxybenzaldehyde (C7H6O4),cyathin A3(C20H30O3), cyathin A4(C20H30O4),allocyathinA4(C20H30O4),cyathin B3(C20H28O3), cyathin B4(C20H28O4), and cyathin C5(C20H26O5). Aside from 2,4,5-trihydroxybenzaldehyde, these compounds appear not to have been previously described. A discussion of some of the structural features of cyathin A4 and cyathin A3 is presented

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