Research Advances on Verticillium dahliae Genes Resulting in Pathogenicity and Microsclerotia Formation

doi:10.13560/j.cnki.biotech.bull.1985.2017-1025

Abstract

Abstract: Verticillium dahliae causes serious damages to agricultural production because of its strong pathogenicity and wide host area,as well as it may live many years as microsclerotia in soil,and germinate as long as there is a appropriate host,thus it is particularly difficult to control it. Currently,the many genes affecting the pathogenicity of V. dahliae have been discovered,and the most critical result is that penetration pegs are generated to infect plant,and some effectors were secreted to be V. dahliae at the hyphal neck of penetration pegs,which regulates plant immunity. Furthermore,the studies have suggested that melanin was vital for the formation of mature microsclerotia,and some genes involved in microsclerotia formation also were related to V. dahliae pathogenicity. However,current researches did not completely elucidate the molecular mechanisms of V. dahliae causing plant wilting and necrosis and microsclerotia formation. This review summarizes research advances on V. dahliae genes involved in pathogenicity and microsclerotia formation,aiming at establishing the theoretical basis for further research on the mechanisms of V. dahliae pathogenicity and microsclerotia formation.

Key words: Verticillium dahliae, pathogenetic gene, microsclerotia, molecular mechanism

XIE Cheng-jian. Research Advances on Verticillium dahliae Genes Resulting in Pathogenicity and Microsclerotia Formation[J]. Biotechnology Bulletin, 2018, 34(4): 51-59.

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