Differences in the effect of volatile and gaseous metabolites of germinating pea seeds on the germination of spores of Mucor racemosus and macroconidia of Fusarium oxysporum are described. Germination of spores of M. racemosus was inhibited by seed metabolites whereas germination of macroconidia of F. oxysporum was stimulated during the first two days and inhibition occurred only after further two days of germination of the seeds. A pronounced inhibition of germination of spores of both micromycetes took place due to absorption of CO2 from volatile and gaseous metabolites. Absorption of some components of seed metabolites in a KMnO4 solution led to a decrease of the inhibitory effect on germination of spores of M. racemosus and stimulatory effect on germination of macroconidia of F. oxysporum.

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Volatile and gaseous metabolites released by germinating seeds of lentil and maize cultivars with different susceptibilities to fusariosis and smut