Effects of Carbon Sources on Regulation of StSte12 to Mycelial Growth and Conidial Development of Setosphaeria turcica
ZHANG Yunfeng
Abstract：The wild type isolate and StSte12 RNAi positive transformants were cultured on media with glu-cose,lactose,sugar or soluble starch as carbon source,to analyze the effects of carbon sources on regula-tion of StSte12 to mycelial growth and conidial development of Setosphaeria turcica,in order to clarify the function of StSte12 and mechanisms of fungal pathogenicity. The results demonstrated that StSte12 paid a key role in mycelial growth and conidial development of S. turcica. With the decrease of gene expression of StSte12, the mycelial growth ability was weakened, hypha color was lightened, mycelial growth speed was significantly attenuated and the conidial number was significantly decreased. The regulation of StSte12 to mycelial growth was significantly affected by carbon sources, among which the effect of soluble starch was the strongest and the sugar was the weakest. Except lactose,the other three carbon sources had significant-ly effects on regulation of StSte12 to conidial development of S. turcica.
Keywords：Setosphaeria turcicaStSte12 genecarbon sourcesmycelial growthconidial development
Publication Date：2016-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 71-75 )