The nodulation and nyctinastic leaf movement is orchestrated by clock gene LHY in Medicago truncatula.
Journal
Journal of integrative plant biology
ISSN: 1744-7909
Titre abrégé: J Integr Plant Biol
Pays: China (Republic : 1949- )
ID NLM: 101250502
Informations de publication
Date de publication:
Dec 2020
Dec 2020
Historique:
received:
29
02
2020
accepted:
27
07
2020
entrez:
6
1
2021
pubmed:
7
1
2021
medline:
12
6
2021
Statut:
ppublish
Résumé
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 nitrogen 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.
Substances chimiques
Plant Proteins
0
Transcription Factors
0
Nitrogen
N762921K75
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1880-1895Subventions
Organisme : Ministry of Science and Technology of China
ID : 2016YFD0100500
Organisme : Ministry of Science and Technology of China
ID : 2015CB943500
Organisme : National Natural Science Foundation of China
ID : 31671507
Organisme : National Natural Science Foundation of China
ID : U1906201
Organisme : Shandong Province
ID : ZR2018ZC0334
Organisme : Shandong Province
ID : ZR2019MC013
Organisme : Project for innovation and entrepreneurship leader of Qingdao
ID : 19-3-2-3-zhc
Organisme : National Science Foundation, USA
ID : DBI-0703285
Organisme : National Science Foundation, USA
ID : IOS-1127155
Informations de copyright
© 2020 Institute of Botany, Chinese Academy of Sciences.
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