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Antifungal Effects of Bacilysin and Fengymycin from Bacillus subtilis F‐29‐3 A Comparison with Activities of Other Bacillus Antibiotics
Author(s) -
Loeffler Wolfgang,
Tschen Johannes S.M.,
Vanittanakom gnuch,
Kugler Martin,
Knorpp Elisabeth,
Hsieh TingFang,
S. M.,
Wu TeneGene
Publication year - 1986
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1986.tb00878.x
Subject(s) - lipopeptide , bacillus subtilis , rhizoctonia solani , biology , surfactin , microbiology and biotechnology , bacillus (shape) , antibiotics , bacillales , rhizoctonia , bacillaceae , bacteria , botany , genetics
Of the two antifungal antibiotics produced by Bacillus subtilis F‐29‐3, the dipeptide compound bacilysin inhibits yeasts (and bacteria), whereas the formerly unknown fengymycin, a complex of closely related lipopeptide components, shows antibiotic activity against filamentous fungi. Bacilysin production, formerly known for a few strains only, could be demonstrated for all 12 wild‐type cultures of Bacillus subtilis tested during this study. The antibiotic also occurs in some strains of three other Bacillus species considered as closely realted to B. subtilis. Members of the lipopeptide class of antifungal Bacillus metabolites were formed by 8 of 12 Bacillus subtilis ‐isolates and several other Bacillus strains. The antibiotics of F‐29‐3 were compared with antifungal metabolites of other Bacillus isolates using TLC, agar‐diffusion techniques and tests demonstrating the capacity of six lipopeptide and peptide preparations to protect rice seedlings from phytomycosis due to Rhizoctonia solani. Fengymycin proved to be different from the other compounds tested. It was less toxic to the test plants and protected them better from Rhizoctonia disease than the other antibiotics of the study did.