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Inhibition of growth of some plant pathogens by antagonistic microorganisms
Author(s) -
Omoifo C.,
Ikotun T.
Publication year - 1987
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/jobm.3620270911
Subject(s) - aspergillus ochraceus , bacillus cereus , biology , fusarium , bacillus subtilis , microbiology and biotechnology , microorganism , penicillium , drechslera , agar , potato dextrose agar , pathogen , botany , mycotoxin , bacteria , ochratoxin a , genetics
Four known antagonistic microorganisms, namely, Bacillus cereus, Bacillus subtilis, Aspergillus ochraceus and Penicillium cyclopium were paired against four pathogens of maize, namely, Curvularia pallescens, Drechslera maydis, Fusarium moniliforme and Macrophomina phaseoli and a pathogen of cassava, Colletotrichum gloeosporioides f. sp. manihotis on potato dextrose agar. The main aim was to test the ability of the antagonists to inhibit the growth of the pathogens. Whereas B. cereus and B. subtilis inhibited the growth of C. pallescens, D. maydis, M. phaseoli and C. gloeosporioides f. sp. manihotis , they did not inhibit the growth of F. moniliforme. A. ochraceus and P. cyclopium were effective only against M. phaseoli. Inhibitory activity on the target organisms are thought to be due to some toxic substances produced by the antagonists.