【摘 要】
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Calcineurin B-like protein (CBL),the Ca2+ sensor,and its interacting protein kinases (CIPKs) play essential roles in plants’ response to stress.However,few stu
【机 构】
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The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology
论文部分内容阅读
Calcineurin B-like protein (CBL),the Ca2+ sensor,and its interacting protein kinases (CIPKs) play essential roles in plants’ response to stress.However,few studies have focused on the functions of CIPKs in low-temperature response.In the present study,BdCIPK31,a cold-responsive CIPK in Brachypodium distachyon,was found to participate in low-temperature response.Ectopic expression of BdCIPK31 conferred cold tolerance in transgenic tobaccos.Further analyses indicated that expression of BdCIPK31 improved ROS detoxication and omsoprotectant biosynthesis in transgenic plants under low-temperature treatment,suggesting that the BdCIPK31 functions positively in plant adaption to the cold-induced oxidative and osmotic stresses.Moreover,BdCIPK31 could upregulate the expressions of some representative stress-related genes under cold stress.In conclusion,these findings suggest that BdCIPK31 functions positively in plant cold response.
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