Mutation of the Arabidopsis Defense Regulators SAG101, EDS1,or PAD4 Confers Enhanced Freezing Tolera

来源 :The 1st Molecular Plant International Symposium:From Model S | 被引量 : 0次 | 上传用户:cttc_tom
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  In Arabidopsis, three lipase-like regulators, SAG101, EDS1, and PAD4, act downstream of resistance protein-associated defense signaling.Although the roles of SAG101, EDS1, and PAD4 in biotic stress have been extensively studied, little is known about their functions in plant responses to abiotic stresses.Here, we used genetic and biochemical approaches to show that SAG101, EDS1, and PAD4 are involved in the regulation of freezing tolerance in Arabidopsis.With or without cold acclimation, the sag101, eds1, and pad4 single mutants, as well as their double mutants exhibited similarly enhanced tolerance to freezing temperatures.
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