https://scholars.lib.ntu.edu.tw/handle/123456789/414329
標題: | Role of vacuoles in phosphorus storage and remobilization | 作者: | SHU-YI YANG Huang, Teng Kuei Kuo, Hui Fen Chiou, Tzyy Jen |
關鍵字: | Autophagy | Inositol phosphate | Orthophosphate | Phosphate transporter | Phosphorus | Polyphosphate | SPX domain | Vacuole | 公開日期: | 1-六月-2017 | 出版社: | OXFORD UNIV PRESS | 卷: | 68 | 期: | 12 | 起(迄)頁: | 3045 | 來源出版物: | Journal of Experimental Botany | 摘要: | © The Author 2017. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. Vacuoles play a fundamental role in storage and remobilization of various nutrients, including phosphorus (P), an essential element for cell growth and development. Cells acquire P primarily in the form of inorganic orthophosphate (Pi). However, the form of P stored in vacuoles varies by organism and tissue. Algae and yeast store polyphosphates (polyPs), whereas plants store Pi and inositol phosphates (InsPs) in vegetative tissues and seeds, respectively. In this review, we summarize how vacuolar P molecules are stored and reallocated and how these processes are regulated and co-ordinated. The roles of SYG1/PHO81/XPR1 (SPX)-domain-containing membrane proteins in allocating vacu-olar P are outlined. We also highlight the importance of vacuolar P in buffering the cytoplasmic Pi concentration to maintain cellular homeostasis when the external P supply fluctuates, and present additional roles for vacuolar polyP and InsP besides being a P reserve. Furthermore, we discuss the possibility of alternative pathways to recycle Pi from other P metabolites in vacuoles. Finally, future perspectives for researching this topic and its potential application in agriculture are proposed. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/414329 | ISSN: | 00220957 | DOI: | https://api.elsevier.com/content/abstract/scopus_id/85018471192 10.1093/jxb/erw481 |
顯示於: | 植物科學研究所 |
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