The nodulation and nyctinastic leaf movement is orchestrated by clock gene LHY in Medicago truncatula

• 作者: Chuanen Zhou Chunxiang Fu Fanjiang Kong Hongfeng Wang Jiangqi Wen Kirankumar S.Mysore Lizhu Wen Lu Han Xiaodong Xu Xiaolin Yu Xiu Liu Yiming Kong
• 来源期刊: 植物学报（英文版）
• 年，卷（期）: 2020,（12）
• 所属期刊栏目: Molecular Physiology
• 页码范围: 1880-1894
• 页数: 15页
• 语种: 英文
• DOI: 10.1111/jipb.12999

摘要

As sessile organisms, plants perceive, respond, and adapt to the environmental changes for optimal growth and survival. The plant growth and fitness are enhanced by circadian clocks through coordination of numerous biological events. In legume species, nitrogen-fixing root nodules were developed as the plant organs specialized for symbiotic transfer of ni-trogen between microsymbiont and host. Here, we report that the endogenous circadian rhythm in nodules is regulated by MtLHY in legume species Medicago truncatula. Loss of function of MtLHY leads to a reduction in the number of nodules formed, resulting in a diminished ability to assimilate nitrogen. The operation of the 24-h rhythm in shoot is further influenced by the availability of nitrogen produced by the nodules, leading to the irregulated nyctinastic leaf movement and reduced biomass in mtlhy mutants. These data shed new light on the roles of MtLHY in the orchestration of circadian oscillator in nodules and shoots, which provides a mechanistic link between nodulation, nitrogen assimilation, and clock function.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Yiming Kong		1	0	0.0	0.0
2	Lu Han		1	0	0.0	0.0
3	Xiu Liu		1	0	0.0	0.0
4	Hongfeng Wang		1	0	0.0	0.0
5	Lizhu Wen		1	0	0.0	0.0
6	Xiaolin Yu		1	0	0.0	0.0
7	Xiaodong Xu		1	0	0.0	0.0
8	Fanjiang Kong		1	0	0.0	0.0
9	Chunxiang Fu		1	0	0.0	0.0
10	Kirankumar S.Mysore		1	0	0.0	0.0
11	Jiangqi Wen		1	0	0.0	0.0
12	Chuanen Zhou		1	0	0.0	0.0