SCIENTIA SINICA Vitae, Volume 49, Issue 9: 1119-1124(2019) https://doi.org/10.1360/SSV-2019-0157

Auxin and leaf senescence regulation

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  • ReceivedJul 24, 2019
  • AcceptedAug 7, 2019
  • PublishedSep 3, 2019


As the last stage of leaf development, the initiation and progression of leaf senescence are tightly controlled by genetic programing and coordinated by both internal and external factors. Plant hormone is one of the important internal factors that affect leaf senescence. It is widely acknowledged that ethylene, abscisic acid, salicylic acid, jasmonic acid and brassinosteroids accelerate leaf senescence, while cytokinin and gibberellin delay leaf senescence. It was generally believed that auxin negatively regulates leaf senescence, but more and more recent studies show that auxin is a positive regulator of leaf senescence. This review aims to summarize the research progress in this field and to lay a foundation for a better understanding towards the function of auxin in leaf senescence regulation.

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  • Table 1   List of auxin-related genes involved in leaf senescence regulation






    增强生长素响应, 功能实现依赖于生长素和乙烯协同作用




    影响生长素分布, 减弱其信号响应



    AtSAUR36, OsSAUR39, AtSAUR10, AtSAUR72






    负调控叶片衰老, 功能源于其硫醇还原酶活性










    ARF7, ARF19




    AtIAA1-4, AtIAA7-9, AtIAA14, AtIAA16-17, AtIAA19, AtIAA28, AtIAA29




    GH3.1, GH3.3, GH3.5, GH3.6








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