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The role of thionins in rice defence against root pathogens

文献类型： 外文期刊

作者： Ji, Hongli 2 ; Gheysen, Godelieve 1 ; Ullah, Chhana 1 ; Verbeek, Ruben 1 ; Shang, Chenjing 1 ; De Vleesschauwer, Da 1 ;

作者机构： 1.Univ Ghent, Fac Biosci Engn, Dept Mol Biotechnol, B-9000 Ghent, Belgium

2.Sichuan Acad Agr Sci, Inst Plant Protect, Chengdu 610066, Peoples R China

3.Univ Ghent, Fac Biosci Engn, Dept Crop Protect, Lab Phytopathol, B-9000 Ghent, Belgium

关键词： defence;Meloidogyne graminicola;overexpression;Pythium graminicola;qRT-PCR;rice thionins

期刊名称：MOLECULAR PLANT PATHOLOGY （ 影响因子：5.663； 五年影响因子：5.626 ）

ISSN：

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收录情况： SCI

摘要： Thionins are antimicrobial peptides that are involved in plant defence. Here, we present an in-depth analysis of the role of rice thionin genes in defence responses against two root pathogens: the root-knot nematode Meloidogyne graminicola and the oomycete Pythium graminicola. The expression of rice thionin genes was observed to be differentially regulated by defence-related hormones, whereas all analysed genes were consistently down-regulated in M.graminicola-induced galls, at least until 7days post-inoculation (dpi). Transgenic lines of Oryza sativa cv. Nipponbare overproducing OsTHI7 revealed decreased susceptibility to M.graminicola infection and P.graminicola colonization. Taken together, these results demonstrate the role of rice thionin genes in defence against two of the most damaging root pathogens attacking rice.

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