Microorganisms vs Higher Plants

A polyketide secondary metabolite, herboxidiene, produced by Streptomyces chromofuscus, shows potent and selective herbicidal activity [87] against weeds but not against wheat. Rice and soybean are more affected than wheat but are still relatively resistant to the microbial herbicide. 

Secondary metabolites play a crucial role in the evolution and ecology of plant pathogenic fungi [88]. Some of the fungi have evolved from opportunistic 

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