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INFLUENCE OF HERBICIDES ON THE COMPETITIVE ABILITY OF FUNGI TO COLONIZE PLANT TISSUES
Author(s) -
WILKINSON VALERIE,
LUCAS R. L.
Publication year - 1969
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1969.tb06474.x
Subject(s) - fusarium culmorum , biology , trichoderma viride , aspergillus niger , competition (biology) , paraquat , penicillium , botany , fusarium , microbiology and biotechnology , ecology , biochemistry
S ummary Experiments show that the presence of herbicide residues in plant remains may be a potent factor determining the outcome of competition between saprophytic fungi colonizing such substrates. Pairs of fungi were induced to compete with each other for a substrate both in the presence and in the absence of herbicides. In all cases the outcome of competition for a substrate incorporating the herbicide was different from that for the substrate alone. Paraquat sprayed on to potato haulm altered the outcome of competition between Trichoderma viride and Fusarium culmorum in favour of F. culmorum and the same herbicide on wheat chaff suppressed Rhizopus stolonifer in favour of Aspergillus niger . Treatment of leaves of Raphanus raphanistrum with MCPA altered the outcome of competition between Fenicillium notatum and Aspergillus niger in favour of A. niger .