Nuclear translocation of OsMFT1 that is impeded by OsFTIP1 promotes drought toleranee in rice

查看全文 作　　者：Ying [1]Chen;Jun [1]Shen;Liang [1]Zhangi;Haoyue [1]Qi;Lijia [1]Yang;Huanyu [1]Wang;Jiaxuan [1]Wang;Yuexing [2]Wang;Hao [1]Du;Zeng [3]Tao;Ting [1]Zhao;Pingchuan [4]Deng;Qingyao [1]Shu;Qian [2]Qian;Hao [5]Yu;Shiyong [1]Song

机构地区：[1]State Key Laboratory of Rice Biology,Zhejiang Provincial Key Laboratory of Crop Genetic Resources,Institute of Crop Science,College of Agriculture and Biotechnology,Zhejiang University,Hangzhou 310058,China;[2]State Key Laboratory of Rice Biology,China National Rice Research Institute,Hangzhou 311400,China;[3]lnstitute of Biotechnology,College of Agriculture and Biotechnology,Zhejiang University,Hangzhou 310058,China;[4]State Key Laboratory of Crop Stress Biology in Arid Areas,College of Agronomy,Northwest A&F University,Yangling,Shaanxi 712100,China;[5]Department of Biological Sciences and Temasek Life Sciences Laboratory,National University of Singapore,Singapore 117543,Singapore

出　　处：《Molecular Plant》索引2021年第14卷第8期,共15页

基　　金：supported by the National Natural Science Foundation of China(32070209 and 32000213);the Zhejiang Provincial Natural Science Foundation of China(LR21C130001 and LQ21C020003);the Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang(2019R01002);the Key Research and Development Program of Zhejiang(2020C02002);the Singapore National Research Foundation Investigatorship Program(NRF-NRFI2016-02). 摘　　要：Drought is the leading environmental threat affecting crop productivity,and plants have evolved a series of mechanisms to adapt to drought stress.The FT-interacting proteins(FTIPs)and phosphatidylethanola mine.binding proteins(PEBPs)play key roles in developmental processes,whereas their roles in the regulation of stress response are still largely unknown.Here,we report that OsFTIP1 negatively regulates drought response in rice.We showed that OsFTIP1 interacts with rice MOTHER OF FT AND TFL1(OsMFT1),a PEBP that promotes rice tolerance to drought treatment.Further studies discovered that OsMFT1 interacts with two key drought-related transcription factors,OsbZIP66 and OsMYB26,regulating their binding capacity on drought-related genes and thereby enhancing drought toleranee in rice.Interestingly,we found that OsFTIP1 impedes the nucleocytoplasmic translocation of OsMFT1,implying that dynamic modulation of drought-responsive genes by the OsMFT1-OsMYB26 and OsMFT1-OsbZIP66 complexes is integral to OsFTIP1-modulated nuclear accumulation of OsMFT1.Our findings also suggest that OsMFT1 might act as a hitherto unknown nucleocytoplasmic trafficking signal that regulates drought tolerance in rice in response to environmental signals. 关键词：OsFTIPI OsMFTI drought response nucleocytoplasmic trafficking RICE

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Nuclear translocation of OsMFT1 that is impeded by OsFTIP1 promotes drought toleranee in rice

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