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Nitrogen nutrition contributes to plant fertility by affecting meiosis initiation

Nitrogen (N), one of the most important plant nutrients, plays crucial roles in multiple plant developmental processes. Spikelets are the primary sink tissues during reproductive growth, and N deficiency can cause floral abortion. However, the roles of N nutrition in meiosis, the crucial step in pla...

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Autores principales: Yang, Han, Li, Yafei, Cao, Yiwei, Shi, Wenqing, Xie, En, Mu, Na, Du, Guijie, Shen, Yi, Tang, Ding, Cheng, Zhukuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8789853/
https://www.ncbi.nlm.nih.gov/pubmed/35079011
http://dx.doi.org/10.1038/s41467-022-28173-3
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author Yang, Han
Li, Yafei
Cao, Yiwei
Shi, Wenqing
Xie, En
Mu, Na
Du, Guijie
Shen, Yi
Tang, Ding
Cheng, Zhukuan
author_facet Yang, Han
Li, Yafei
Cao, Yiwei
Shi, Wenqing
Xie, En
Mu, Na
Du, Guijie
Shen, Yi
Tang, Ding
Cheng, Zhukuan
author_sort Yang, Han
collection PubMed
description Nitrogen (N), one of the most important plant nutrients, plays crucial roles in multiple plant developmental processes. Spikelets are the primary sink tissues during reproductive growth, and N deficiency can cause floral abortion. However, the roles of N nutrition in meiosis, the crucial step in plant sexual reproduction, are poorly understood. Here, we identified an N-dependent meiotic entrance mutant with loss of function of ELECTRON TRANSFER FLAVOPROTEIN SUBUNIT β (ETFβ) in rice (Oryza sativa). etfβ displayed meiosis initiation defects, excessive accumulation of branched-chain amino acids (BCAAs) and decrease in total N contents in spikelets under N starvation, which were rescued by applying excess exogenous inorganic N. Under N starvation, ETFβ, through its involvement in BCAA catabolism, promotes N reutilization and contributes to meeting N demands of spikelets, highlighting the impact of N nutrition on meiosis initiation. We conclude that N nutrition contributes to plant fertility by affecting meiosis initiation.
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spelling pubmed-87898532022-02-07 Nitrogen nutrition contributes to plant fertility by affecting meiosis initiation Yang, Han Li, Yafei Cao, Yiwei Shi, Wenqing Xie, En Mu, Na Du, Guijie Shen, Yi Tang, Ding Cheng, Zhukuan Nat Commun Article Nitrogen (N), one of the most important plant nutrients, plays crucial roles in multiple plant developmental processes. Spikelets are the primary sink tissues during reproductive growth, and N deficiency can cause floral abortion. However, the roles of N nutrition in meiosis, the crucial step in plant sexual reproduction, are poorly understood. Here, we identified an N-dependent meiotic entrance mutant with loss of function of ELECTRON TRANSFER FLAVOPROTEIN SUBUNIT β (ETFβ) in rice (Oryza sativa). etfβ displayed meiosis initiation defects, excessive accumulation of branched-chain amino acids (BCAAs) and decrease in total N contents in spikelets under N starvation, which were rescued by applying excess exogenous inorganic N. Under N starvation, ETFβ, through its involvement in BCAA catabolism, promotes N reutilization and contributes to meeting N demands of spikelets, highlighting the impact of N nutrition on meiosis initiation. We conclude that N nutrition contributes to plant fertility by affecting meiosis initiation. Nature Publishing Group UK 2022-01-25 /pmc/articles/PMC8789853/ /pubmed/35079011 http://dx.doi.org/10.1038/s41467-022-28173-3 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Yang, Han
Li, Yafei
Cao, Yiwei
Shi, Wenqing
Xie, En
Mu, Na
Du, Guijie
Shen, Yi
Tang, Ding
Cheng, Zhukuan
Nitrogen nutrition contributes to plant fertility by affecting meiosis initiation
title Nitrogen nutrition contributes to plant fertility by affecting meiosis initiation
title_full Nitrogen nutrition contributes to plant fertility by affecting meiosis initiation
title_fullStr Nitrogen nutrition contributes to plant fertility by affecting meiosis initiation
title_full_unstemmed Nitrogen nutrition contributes to plant fertility by affecting meiosis initiation
title_short Nitrogen nutrition contributes to plant fertility by affecting meiosis initiation
title_sort nitrogen nutrition contributes to plant fertility by affecting meiosis initiation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8789853/
https://www.ncbi.nlm.nih.gov/pubmed/35079011
http://dx.doi.org/10.1038/s41467-022-28173-3
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