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当前位置: 首页 > 文章 > 3个基因共同参与拟南芥对橡胶树白粉菌的抗病性 热带生物学报 2018 (1) 31-36
Position: Home > Articles > Involvement of 3 Genes in the Disease Resistance of Arabidopsis against Oidium heveae Journal of Tropical Biology 2018 (1) 31-36

3个基因共同参与拟南芥对橡胶树白粉菌的抗病性

作  者：
李亮;梅双双;戎伟
关键词：
橡胶树白粉菌;拟南芥;EDS1;PAD4;SAG101;抗病性
摘  要：
通过在拟南芥野生型Col-0和突变体sag101,eds1及pad4上接种橡胶树白粉菌Oidium heveae HN1106,分析了拟南芥早期抗病性和后期抗病性表型。结果表明:与野生型Col-0相比,橡胶树白粉菌在拟南芥突变体sag101,eds1和pad4上激发的早期抗病性、后期抗病性以及抗病反应都显著降低,突变体eds1感病性最强,pad4次之,sag101最弱,暗示着PAD4与SAG101在橡胶树白粉菌抗性方面存在功能互补,三者共同参与了拟南芥对橡胶树白粉菌的抗病性。
译  名：
Involvement of 3 Genes in the Disease Resistance of Arabidopsis against Oidium heveae
作  者：
Li Liang;MEI Shuangshuang;RONG Wei;Institute of Tropical Agriculture and Forestry,Hainan University;
关键词：
Oidium heveae;;Arabidopsis thaliana;;eds1;;pad4;;sag101;;disease resistance
摘  要：
The powdery mildew disease of rubber trees is caused by Oidium heveae,an obligate biotrophic pathogen on Hevea brasiliensis.It has been reported that O.heveae HN1106 triggers the hypersensitive response in a manner that depends on the EDS1 and PAD4 in the model plant Arabidopsis thaliana.Previous study has shown that EDS1,PAD4 and SAG101 can form a single complex to mediate disease resistance.However,it is unknown whether SAG101 is required for O.heveae triggered disease resistance in Arabidopsis.The wide type(WT) Col-0 and the mutants sag101,eds1 and pad4 of Arabidopsis were inoculated with O.heveae HN1106 to analyze the early and late disease resistance triggered by O.heveae in Arabidopsis.The results showed that the disease resistance at the early stage and late stage and defense responses triggered by O.heveae in the mutants sag101,eds1 and pad4 were significantly lower than those in the WT Col-0,and the susceptibility of the mutants to O.heveae is in the order of eds1>pad4>sag101.This indicates that eds1,pad4 and sag101 all contribute to the disease resistance against O.heveae,and that pad4 has a complementary function with sag101 in the resistance.

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