【摘 要】
：
植物叶片衰老是受遗传程序控制和多种外界因子影响的高度程序化的死亡过程。分离、鉴定叶片衰老信号传递的关键组分和参与启动与调控叶片衰老进程的关键基因,并对其功能
【机 构】
：
南开大学生命科学学院植物生物学与生态学系,天津300071
论文部分内容阅读
植物叶片衰老是受遗传程序控制和多种外界因子影响的高度程序化的死亡过程。分离、鉴定叶片衰老信号传递的关键组分和参与启动与调控叶片衰老进程的关键基因,并对其功能进行深入的生物化学与分子生物学分析,是揭示植物叶片衰老分子机制的重要课题,也是利用基因工程技术延长叶片功能期以改善作物产量和品质的必要基础。我们在前期工作中,发现无论在大豆还是拟南芥中,都存在着一种丝/苏氨酸和酪氨酸双底物特异性LRR型类受体蛋白激酶基因,分别命名为GmSARK和AtSARK,它们通过生长素和乙烯的协同作用调控植物叶片衰老的启动和进程。
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