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A Golgi-localized manganese transporter functions in pollen tube tip growth to control male fertility in Arabidopsis

Manganese (Mn) serves as an essential cofactor for many enzymes in various compartments of a plant cell. Allocation of Mn among various organelles thus plays a central role in Mn homeostasis to support metabolic processes. We report the identification of a Golgi-localized Mn transporter (named PML3)...

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Detalles Bibliográficos
Autores principales: Zhang, Bin, Zhang, Chi, Liu, Congge, Fu, Aigen, Luan, Sheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8132125/
https://www.ncbi.nlm.nih.gov/pubmed/34027392
http://dx.doi.org/10.1016/j.xplc.2021.100178
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author Zhang, Bin
Zhang, Chi
Liu, Congge
Fu, Aigen
Luan, Sheng
author_facet Zhang, Bin
Zhang, Chi
Liu, Congge
Fu, Aigen
Luan, Sheng
author_sort Zhang, Bin
collection PubMed
description Manganese (Mn) serves as an essential cofactor for many enzymes in various compartments of a plant cell. Allocation of Mn among various organelles thus plays a central role in Mn homeostasis to support metabolic processes. We report the identification of a Golgi-localized Mn transporter (named PML3) that is essential for rapid cell elongation in young tissues such as emerging leaves and the pollen tube. In particular, the pollen tube defect in the pml3 loss-of-function mutant caused severe reduction in seed yield, a critical agronomic trait. Further analysis suggested that a loss of pectin deposition in the pollen tube might cause the pollen tube to burst and slow its elongation, leading to decreased male fertility. As the Golgi apparatus serves as the major hub for biosynthesis and modification of cell-wall components, PML3 may function in Mn homeostasis of this organelle, thereby controlling metabolic and/or trafficking processes required for pectin deposition in rapidly elongating cells.
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spelling pubmed-81321252021-05-21 A Golgi-localized manganese transporter functions in pollen tube tip growth to control male fertility in Arabidopsis Zhang, Bin Zhang, Chi Liu, Congge Fu, Aigen Luan, Sheng Plant Commun Research Article Manganese (Mn) serves as an essential cofactor for many enzymes in various compartments of a plant cell. Allocation of Mn among various organelles thus plays a central role in Mn homeostasis to support metabolic processes. We report the identification of a Golgi-localized Mn transporter (named PML3) that is essential for rapid cell elongation in young tissues such as emerging leaves and the pollen tube. In particular, the pollen tube defect in the pml3 loss-of-function mutant caused severe reduction in seed yield, a critical agronomic trait. Further analysis suggested that a loss of pectin deposition in the pollen tube might cause the pollen tube to burst and slow its elongation, leading to decreased male fertility. As the Golgi apparatus serves as the major hub for biosynthesis and modification of cell-wall components, PML3 may function in Mn homeostasis of this organelle, thereby controlling metabolic and/or trafficking processes required for pectin deposition in rapidly elongating cells. Elsevier 2021-03-18 /pmc/articles/PMC8132125/ /pubmed/34027392 http://dx.doi.org/10.1016/j.xplc.2021.100178 Text en © 2021 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Research Article
Zhang, Bin
Zhang, Chi
Liu, Congge
Fu, Aigen
Luan, Sheng
A Golgi-localized manganese transporter functions in pollen tube tip growth to control male fertility in Arabidopsis
title A Golgi-localized manganese transporter functions in pollen tube tip growth to control male fertility in Arabidopsis
title_full A Golgi-localized manganese transporter functions in pollen tube tip growth to control male fertility in Arabidopsis
title_fullStr A Golgi-localized manganese transporter functions in pollen tube tip growth to control male fertility in Arabidopsis
title_full_unstemmed A Golgi-localized manganese transporter functions in pollen tube tip growth to control male fertility in Arabidopsis
title_short A Golgi-localized manganese transporter functions in pollen tube tip growth to control male fertility in Arabidopsis
title_sort golgi-localized manganese transporter functions in pollen tube tip growth to control male fertility in arabidopsis
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8132125/
https://www.ncbi.nlm.nih.gov/pubmed/34027392
http://dx.doi.org/10.1016/j.xplc.2021.100178
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