A kind of chitin synthase and its gene and application

Abstract

The invention relates to a chitin synthase, particularly a chitin synthase in Oomycota. The amino acid sequence of the chitin synthase has more than 75% (preferably more than 80%, more preferably more than 90% and most preferably more than 95%) of similarity to the amino acid sequence disclosed as SEQ ID No.4, and has the amino acid sequence with the same function as the amino acid sequence disclosed as SEQ ID No.4. The activity level of the chitin synthase can regulate the yields of the active sporangia and active zoospore of oomycetes, thereby influencing the pathogenicity of the oomycetes or the disease development degree of the host.

Description

technical field

[0001] The present invention relates to chitin synthase, in particular to chitin synthase in Oomycota. Background technique

[0002] There are many important plant pathogenic oomycetes in Oomycota, which can infect a variety of host plants. For example, Phytophthora capsici can infect peppers and tomatoes in Solanaceae, green beans and kidney beans in leguminous plants, and cucurbits. most plants in the family, causing serious economic losses. Among them, pepper blight is a devastating oomycete disease in pepper planting and production, which occurs in most parts of my country. Pepper blight has the characteristics of multiple infection routes, short course of disease, and fast spreading speed. When the onset conditions are suitable, short-term It can cause a large number of wilting and death of peppers, or even extinction. Soybean root rot caused by Phytophthora sojae infection is one of the important diseases that seriously endanger soybean production, cau...

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