Regulation of Na(+) fluxes in plants.
Regulation of Na(+) fluxes in plants.
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DOI:
10.3389/fpls.2014.00467
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发表时间:
2014
影响因子:
5.6
通讯作者:
Patishtan J
中科院分区:
文献类型:
--
作者:
Maathuis FJ;Ahmad I;Patishtan J
When exposed to salt, every plant takes up Na+ from the environment. Once in the symplast, Na+ is distributed within cells and between different tissues and organs. There it can help to lower the cellular water potential but also exert potentially toxic effects. Control of Na+ fluxes is therefore crucial and indeed, research shows that the divergence between salt tolerant and salt sensitive plants is not due to a variation in transporter types but rather originates in the control of uptake and internal Na+ fluxes. A number of regulatory mechanisms has been identified based on signaling of Ca2+, cyclic nucleotides, reactive oxygen species, hormones, or on transcriptional and post translational changes of gene and protein expression. This review will give an overview of intra- and intercellular movement of Na+ in plants and will summarize our current ideas of how these fluxes are controlled and regulated in the early stages of salt stress.
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