Studies on antibiotics against wheat black rust: screening of useful antibiotics and characterization of producing organism
1981
Jeong, Y.K. (Dongju Women's Junior Coll., Busan (Korea R.))
To isolate microorganisms which produce antibiotics against wheat black rust, some bacteria, molds, and actinomycetes were isolated from soils and screened for the production of antibiotics against wheat black rust. Because wheat black rust, Puccinia graminis, is a complete parasitic mold, a new method for the screening developed by using live leaves of wheat A strain No. 480HS20 which produces a substance having strong anti Puccinia graminis activity and very narrow antimicrobial spectrum was isolated. The substance produced by the strain 480HS20 had better anti Puccinia graminis activity than any other known antifungal antibiotics such as Kasugamycin, blasticidins, actidione, antimucin, and oligomycin. The substance was observed to be very stable at heat and ultraviolet light. The strain was identified as Bacillus subtilis.
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