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植物病原菌所产生的代谢产物不仅直接引起植物病害,有的还能阻碍或促进植物的生长和发育。从水稻恶苗菌中分离出的赤霉素可以促进植物的生长。近代研究发现,引起植物叶枯病的几种病原菌,如水稻白叶枯病、稻瘟病、胡麻叶斑病、玉米小斑病、甘蔗叶枯病、高粱叶斑病等的病原菌都能产生代谢产物,给农业带来危害。
Metabolites produced by plant pathogens not only directly cause plant diseases, but some can hinder or promote plant growth and development. The gibberellin isolated from rice seedlings can promote plant growth. Modern research found that several pathogenic bacteria causing plant leaf blight, such as bacterial blight, rice blast, flax leaf spot, corn spot, sugarcane leaf blight, sorghum leaf spot and other pathogens can produce metabolism Product, bring harm to agriculture.