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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1111/nph.14882
|2 doi
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|a pubmed24n0926.xml
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|a (DE-627)NLM278056334
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|a (NLM)29139111
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Zhang, Ming
|e verfasserin
|4 aut
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| 245 |
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|a A retrotransposon in an HKT1 family sodium transporter causes variation of leaf Na+ exclusion and salt tolerance in maize
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| 264 |
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|c 2018
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 02.10.2019
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| 500 |
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|a Date Revised 31.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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| 520 |
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|a © 2017 The Authors. New Phytologist © 2017 New Phytologist Trust.
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|a Soil salinity is one of several major abiotic stresses that constrain maize productivity worldwide. An improved understanding of salt-tolerance mechanisms will thus enhance the breeding of salt-tolerant maize and boost productivity. Previous studies have indicated that the maintenance of leaf Na+ concentration is essential for maize salt tolerance, and the difference in leaf Na+ exclusion has previously been associated with variation in salt tolerance between maize varieties. Here, we report the identification and functional characterization of a maize salt-tolerance quantitative trait locus (QTL), Zea mays Na+ Content1 (ZmNC1), which encodes an HKT-type transporter (designated as ZmHKT1). We show that a natural ZmHKT1 loss-of-function allele containing a retrotransposon insertion confers increased accumulation of Na+ in leaves, and salt hypersensitivity. We next show that ZmHKT1 encodes a plasma membrane-localized Na+ -selective transporter, and is preferentially expressed in root stele (including the parenchyma cells surrounding the xylem vessels). We also show that loss of ZmHKT1 function increases xylem sap Na+ concentration and causes increased root-to-shoot Na+ delivery, indicating that ZmHKT1 promotes leaf Na+ exclusion and salt tolerance by withdrawing Na+ from the xylem sap. We conclude that ZmHKT1 is a major salt-tolerance QTL and identifies an important new gene target in breeding for improved maize salt tolerance
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a ion homeostasis
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| 650 |
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|a maize
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| 650 |
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|a natural variation
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| 650 |
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|a quantitative trait locus (QTL)
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| 650 |
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4 |
|a salt tolerance
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| 650 |
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|a Cation Transport Proteins
|2 NLM
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| 650 |
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|a HKT1 protein, plant
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Retroelements
|2 NLM
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| 650 |
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7 |
|a Soil
|2 NLM
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| 650 |
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7 |
|a Symporters
|2 NLM
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| 650 |
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|a Sodium
|2 NLM
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| 650 |
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7 |
|a 9NEZ333N27
|2 NLM
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| 650 |
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7 |
|a Potassium
|2 NLM
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| 650 |
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7 |
|a RWP5GA015D
|2 NLM
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| 700 |
1 |
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|a Cao, Yibo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Zhiping
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Zhi-Qiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shi, Junpeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liang, Xiaoyan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Song, Weibin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Qijun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lai, Jinsheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jiang, Caifu
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 217(2018), 3 vom: 15. Feb., Seite 1161-1176
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:217
|g year:2018
|g number:3
|g day:15
|g month:02
|g pages:1161-1176
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/nph.14882
|3 Volltext
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|a GBV_ILN_350
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|a AR
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|d 217
|j 2018
|e 3
|b 15
|c 02
|h 1161-1176
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