DELAY OF GERMINATION1 requires PP2C phosphatases of the ABA signalling pathway to control seed dormancy

文献类型： 外文期刊

第一作者： Nee, Guillaume

作者： Nee, Guillaume;Nakabayashi, Kazumi;Yuan, Bingjian;Xiang, Yong;Miatton, Emma;Soppe, Wim J. J.;Nee, Guillaume;Finkemeier, Iris;Kramer, Katharina;Finkemeier, Iris;Xiang, Yong;Soppe, Wim J. J.;Nakabayashi, Kazumi;Soppe, Wim J. J.

作者机构：

期刊名称：NATURE COMMUNICATIONS （ 影响因子：14.919； 五年影响因子：15.805 ）

ISSN： 2041-1723

年卷期： 2017 年 8 卷

页码：

收录情况： SCI

摘要： The time of seed germination is a major decision point in the life of plants determining future growth and development. This timing is controlled by seed dormancy, which prevents germination under favourable conditions. The plant hormone abscisic acid (ABA) and the protein DELAY OF GERMINATION 1 (DOG1) are essential regulators of dormancy. The function of ABA in dormancy is rather well understood, but the role of DOG1 is still unknown. Here, we describe four phosphatases that interact with DOG1 in seeds. Two of them belong to clade A of type 2C protein phosphatases: ABA-HYPERSENSITIVE GERMINATION 1 (AHG1) and AHG3. These phosphatases have redundant but essential roles in the release of seed dormancy epistatic to DOG1. We propose that the ABA and DOG1 dormancy pathways converge at clade A of type 2C protein phosphatases.

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