文献类型： 外文期刊
作者： Cao, Huasheng 1 ; Gong, Rong 2 ; Yuan, Shu 1 ; Su, Yuan 3 ; Lv, Weixin 1 ; Zhou, Yimeng 1 ; Zhang, Qingqing 1 ; Deng, Xia 1 ;
作者机构： 1.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan, Hubei, Peoples R China
2.Rice Res Inst, Guangdong Acad Agr Sci, Guangzhou, Guangdong, Peoples R China
3.Univ Missouri St Louis, Dept Biol, St Louis, MO USA
4.Donald Danforth Plant Sci Ctr, St Louis, MO USA
关键词： gibberellin signaling; GID1 receptor; phosphatidic acid; Phospholipase; rice
期刊名称：EMBO REPORTS （ 影响因子：8.807； 五年影响因子：10.715 ）
ISSN： 1469-221X
年卷期： 2021 年 22 卷 10 期
页码：
收录情况： SCI
摘要： Phospholipase D (PLD) hydrolyzes membrane lipids to produce phosphatidic acid (PA), a lipid mediator involved in various cellular and physiological processes. Here, we show that PLD alpha 6 and PA regulate the distribution of GIBBERELLIN (GA)-INSENSITIVE DWARF1 (GID1), a soluble gibberellin receptor in rice. PLD alpha 6-knockout (KO) plants display less sensitivity to GA than WT, and PA restores the mutant to a normal GA response. PA binds to GID1, as documented by liposome binding, fat immunoblotting, and surface plasmon resonance. Arginines 79 and 82 of GID1 are two key amino acid residues required for PA binding and also for GID1's nuclear localization. The loss of PLD alpha 6 impedes GA-induced nuclear localization of GID1. In addition, PLD alpha 6-KO plants attenuated GA-induced degradation of the DELLA protein SLENDER RICE1 (SLR1). These data suggest that PLD alpha 6 and PA positively mediate GA signaling in rice via PA binding to GID1 and promotion of its nuclear translocation.
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