Callose Synthase Family Genes Involved in the Grapevine Defense Response to Downy Mildew Disease
文献类型： 外文期刊
作者： Yu, Ying 2 ; Jiao, Li 1 ; Fu, Shufang 1 ; Yin, Ling 1 ; Zhang, Yali 1 ; Lu, Jiang 1 ;
作者机构： 1.China Agr Univ, Viticulture & Enol Program, Coll Food Sci & Nutr Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Genet & Dev Biol, Beijing 100864, Peoples R China
3.Guangxi Acad Agr Sci, Guangxi Crop Genet Improvement & Biotechnol Key L, Nanning, Guangxi, Peoples R China
期刊名称：PHYTOPATHOLOGY （ 影响因子：4.025； 五年影响因子：4.394 ）
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收录情况： SCI
摘要： The deposition of. callose is a common plant defense response to intruding pathogens and part of the plant's innate immunity. In this study, eight grapevine callose synthase (CalS) genes were identified and characterized. To investigate biological function of CalS in grapevine against the infection of Plasmopara viticola, expression patterns of grapevine CalS family genes were analyzed among resistant/susceptible cultivars. After P. viticola infection, expression of CalS1, 3, 7, 8, 9, 10, and 11 were significantly modified among the grapevine cultivars. For example, the expression of CalS1 and CalS10 were greatly increased in downy mildew (DM)-immune Muscadinia rotundifolia 'Carlos' and 'Noble'. Transient expression assay with promoters of the CalS1 and CalS10 genes confirmed that they were regulated by the oomycete pathogen P. viticola. CalS1 promoter activity was also significantly up-regulated by ABA in DM-immune M. rotundifolia 'Noble', but down-regulated in DM-susceptible Vitis vinifera 'Chardonnay'. The CalS1 promoter, however, was also down-regulated by GA in 'Chardonnay', but not affected in 'Noble'. The promoter activity of CalS10 was significantly up-regulated by GA in 'Chardonnay', but not regulated by ABA at all. It is proposed that CalS1 and CalS10 were involved in grapevine defense against DM disease.
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