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Effect of substrate on the bioactivity of volatile antimicrobials produced by Muscodor albus
Year:
2003
Source of publication :
Plant Science
Authors :
Ezra, David
;
.
Volume :
165
Co-Authors:
Ezra, D., Department of Plant Sciences, Montana State University, 206 Ag BioSciences Building, Bozeman, MT 59717, United States
Strobel, G.A., Department of Plant Sciences, Montana State University, 206 Ag BioSciences Building, Bozeman, MT 59717, United States
Facilitators :
From page:
1229
To page:
1238
(
Total pages:
10
)
Abstract:
Muscodor albus, a newly described endophytic fungus, inhibits and kills other fungi and bacteria by emitting volatile organic compounds (VOCs) with antibiotic properties. The composition of the medium used to support the growth of this fungus greatly influences the quality and effectiveness of the volatiles emitted by this organism. A sucrose enriched medium primarily yielded methyl isobutylketone and acetic acid, butyl ester as the primary volatiles, yet neither of these compounds appeared in any other medium. More enriched media were more effective in inhibiting a suite of plant pathogens used as test microbes. A mixture of propanoic acid, 2-methyl-, and several related esters were associated with the elevated bioactivity of these fungal support media. An artificial mixture of the volatile compounds emitted by the M. albus on the various growth media mimicked the effects of the natural volatiles in the bioassay test system. Both IC50 and IC100 values, for each test organism, were generally the lowest for the artificial test mixture representing the atmosphere of the fungus grown on PDA. Both natural and artificial mixtures of volatiles effectively served as mycofumigants of various naturally and artificially fungal contaminated seeds in closed chambers. A wide range of pathogenic seed associated fungi including aspergillus, penicillum, fusarium and leptosphaeria are controlled by the gases of M. albus. © 2003 Elsevier Ireland Ltd. All rights reserved.
Note:
Related Files :
Aspergillus
bacteria
endophytes
fungi
Fusarium
Leptosphaeria
Mixtures
Muscodor
Pathogens
Volatile organic compounds
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Related Content
More details
DOI :
10.1016/S0168-9452(03)00330-3
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29541
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:47
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Scientific Publication
Effect of substrate on the bioactivity of volatile antimicrobials produced by Muscodor albus
165
Ezra, D., Department of Plant Sciences, Montana State University, 206 Ag BioSciences Building, Bozeman, MT 59717, United States
Strobel, G.A., Department of Plant Sciences, Montana State University, 206 Ag BioSciences Building, Bozeman, MT 59717, United States
Effect of substrate on the bioactivity of volatile antimicrobials produced by Muscodor albus
Muscodor albus, a newly described endophytic fungus, inhibits and kills other fungi and bacteria by emitting volatile organic compounds (VOCs) with antibiotic properties. The composition of the medium used to support the growth of this fungus greatly influences the quality and effectiveness of the volatiles emitted by this organism. A sucrose enriched medium primarily yielded methyl isobutylketone and acetic acid, butyl ester as the primary volatiles, yet neither of these compounds appeared in any other medium. More enriched media were more effective in inhibiting a suite of plant pathogens used as test microbes. A mixture of propanoic acid, 2-methyl-, and several related esters were associated with the elevated bioactivity of these fungal support media. An artificial mixture of the volatile compounds emitted by the M. albus on the various growth media mimicked the effects of the natural volatiles in the bioassay test system. Both IC50 and IC100 values, for each test organism, were generally the lowest for the artificial test mixture representing the atmosphere of the fungus grown on PDA. Both natural and artificial mixtures of volatiles effectively served as mycofumigants of various naturally and artificially fungal contaminated seeds in closed chambers. A wide range of pathogenic seed associated fungi including aspergillus, penicillum, fusarium and leptosphaeria are controlled by the gases of M. albus. © 2003 Elsevier Ireland Ltd. All rights reserved.
Scientific Publication
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