Ethylene and salicylic acid synergistically accelerate leaf senescence in Arabidopsis

查看全文 作　　者：Chaoqi [1]Wang;Shouyi [1]Dai;Zhong‐Lin [1]Zhang;Wenqing [1]Lao;Ruiying [1]Wang;Xianqing [1]Meng;Xin [1]Zhou

机构地区：[1]Shanghai Key Laboratory of Plant Molecular Sciences,College of Life Sciences,Shanghai Normal University,Shanghai 200234,China

出　　处：《Journal of Integrative Plant Biology》索引2021年第63卷第5期,共6页

基　　金：This work was supported by grants from the Natural Science Foundation of Shanghai(17ZR1420400);the National Natural Science Foundation of China(31970303);the Municipal Science and Technology Commission of Shanghai(18DZ2260500)to Xin Zhou;supported in part by the Shanghai Science and Technology Innovation Action Plan Project(16391900300);the Shanghai Pujiang Talent Program(17PJ1433700);the National Natural Science Foundation of China(31872661)to Zhong-Lin Zhang。 摘　　要：The phytohormones ethylene and salicylic acid(SA) have long been known to promote senescence, but their interplay during this process remains elusive. Here we report the synergistic effects of ethylene and SA on promoting leaf senescence in Arabidopsis. EIN3, a key transcription factor of ethylene signaling, physically interacted with the core SA signaling regulator NPR1 in senescing leaves. EIN3 and NPR1 synergistically promoted the expression of the senescence-associated genes ORE1 and SAG29.The senescence phenotype was more delayed for the ein3 eil1 npr1 triple mutant than ein3 eil1 or npr1 with ethylene or/and SA treatment. NPR1-promoted leaf senescence may depend on functional EIN3/EIL1. 关键词：EIN3 ETHYLENE INTERACTION NPR1 salicylic acid SENESCENCE synergistic effect

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Ethylene and salicylic acid synergistically accelerate leaf senescence in Arabidopsis

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