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Arabidopsis thaliana NIP 7;1 is involved in tissue arsenic distribution and tolerance in response to arsenate
Author(s) -
Lindsay Emma R.,
Maathuis Frans J. M.
Publication year - 2016
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1002/1873-3468.12103
Subject(s) - arsenate , arsenic , arsenite , nip , xylem , arabidopsis thaliana , chemistry , biology , biochemistry , microbiology and biotechnology , botany , mutant , organic chemistry , computer science , gene , programming language
The Arabidopsis aquaglyceroporin NIP 7;1 is involved in uptake and tolerance to the trivalent arsenic species arsenite. Here, we show that NIP 7;1 is also involved in the response to pentavalent arsenate. Loss of function of NIP 7;1 improved tolerance to arsenate and reduced arsenic levels in both the phloem and xylem, resulting in altered arsenic distribution between tissues. There was no clear correlation between growth and shoot arsenic concentration. This is the first report detailing the involvement of a NIP transporter in response to arsenate. The data suggest that these proteins are relevant targets for breeding and engineering arsenic tolerance in crops.