The Arabidopsis thaliana aquaglyceroporin AtNIP7;1 is a pathway for arsenite uptake

被引：159

作者：

Isayenkov, Stanislav V. ^{[1
]}

Maathuis, Frans J. M. ^{[1
]}

机构：

[1] Univ York, Dept Biol, Area 9, York YO10 5DD, N Yorkshire, England

来源：

FEBS LETTERS | 2008年 / 582卷 / 11期

关键词：

arsenic; arsenite; aquaporin; uptake; Arabidopsis thaliana;

D O I：

10.1016/j.febslet.2008.04.022

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

We studied the effect of loss of function in the NIP subfamily II in Arabidopsis thaliana to assess their potential role(s) in arsenite (AsIII) uptake. Loss of function in AtNIP7;1 led to increased plant tolerance to AsIII and reduced total As in planta. AtNIP7;1 expression in various yeast backgrounds increased AsIII sensitivity. In the acr3D yeast genotype, AtNIP7;1 caused a moderate increase in AsV tolerance. Shortterm As uptake in fsp1 Delta expressing AtNIP7;1 was significantly larger than that in the empty vector control. The data suggest that AtNIP7; 1 can mediate AsIII transport and contributes to AsIII uptake in plants. (C) 2008 Federation of European Biochemical Societies. Published by Elsevier B. V. All rights reserved.

引用

页码：1625 / 1628

页数：4

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