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Title: Two NHX‐type transporters from Helianthus tuberosus improve the tolerance of rice to salinity and nutrient deficiency stress

Abstract

Summary The NHX‐type cation/H + transporters in plants have been shown to mediate Na + (K + )/H + exchange for salinity tolerance and K + homoeostasis. In this study, we identified and characterized two NHX homologues, HtNHX1 and HtNHX2 from an infertile and salinity tolerant species Helianthus tuberosus (cv. Nanyu No. 1). HtNHX1 and HtNHX2 share identical 5′‐ and 3′‐UTR and coding regions, except for a 342‐bp segment encoding 114 amino acids (L 272 to Q 385 ) which is absent in HtNHX2 . Both hydroponics and soil culture experiments showed that the expression of HtNHX1 or HtNHX2 improved the rice tolerance to salinity. Expression of HtNHX2 , but not HtNHX1 , increased rice grain yield, harvest index, total nutrient uptake under K + ‐limited salt‐stress or general nutrient deficiency conditions. The results provide a novel insight into NHX function in plant mineral nutrition.

Authors:
 [1];  [2];  [1];  [1];  [1];  [1];  [3];  [1];  [1]
  1. State Key Laboratory of Crop Genetics and Germplasm Enhancement Nanjing Agricultural University Nanjing China, Key Laboratory of Plant Nutrition and Fertilization in Low‐Middle Reaches of the Yangtze River Ministry of Agriculture Nanjing Agricultural University Nanjing China
  2. Key Laboratory of Plant Nutrition and Fertilization in Low‐Middle Reaches of the Yangtze River Ministry of Agriculture Nanjing Agricultural University Nanjing China
  3. Department of Plant Sciences University of California Davis CA USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1393988
Alternate Identifier(s):
OSTI ID: 1393989
Resource Type:
Published Article
Journal Name:
Plant Biotechnology Journal
Additional Journal Information:
Journal Name: Plant Biotechnology Journal Journal Volume: 16 Journal Issue: 1; Journal ID: ISSN 1467-7644
Publisher:
Wiley-Blackwell
Country of Publication:
United Kingdom
Language:
English

Citation Formats

Zeng, Yang, Li, Qing, Wang, Haiya, Zhang, Jianliang, Du, Jia, Feng, Huimin, Blumwald, Eduardo, Yu, Ling, and Xu, Guohua. Two NHX‐type transporters from Helianthus tuberosus improve the tolerance of rice to salinity and nutrient deficiency stress. United Kingdom: N. p., 2017. Web. doi:10.1111/pbi.12773.
Zeng, Yang, Li, Qing, Wang, Haiya, Zhang, Jianliang, Du, Jia, Feng, Huimin, Blumwald, Eduardo, Yu, Ling, & Xu, Guohua. Two NHX‐type transporters from Helianthus tuberosus improve the tolerance of rice to salinity and nutrient deficiency stress. United Kingdom. https://doi.org/10.1111/pbi.12773
Zeng, Yang, Li, Qing, Wang, Haiya, Zhang, Jianliang, Du, Jia, Feng, Huimin, Blumwald, Eduardo, Yu, Ling, and Xu, Guohua. Thu . "Two NHX‐type transporters from Helianthus tuberosus improve the tolerance of rice to salinity and nutrient deficiency stress". United Kingdom. https://doi.org/10.1111/pbi.12773.
@article{osti_1393988,
title = {Two NHX‐type transporters from Helianthus tuberosus improve the tolerance of rice to salinity and nutrient deficiency stress},
author = {Zeng, Yang and Li, Qing and Wang, Haiya and Zhang, Jianliang and Du, Jia and Feng, Huimin and Blumwald, Eduardo and Yu, Ling and Xu, Guohua},
abstractNote = {Summary The NHX‐type cation/H + transporters in plants have been shown to mediate Na + (K + )/H + exchange for salinity tolerance and K + homoeostasis. In this study, we identified and characterized two NHX homologues, HtNHX1 and HtNHX2 from an infertile and salinity tolerant species Helianthus tuberosus (cv. Nanyu No. 1). HtNHX1 and HtNHX2 share identical 5′‐ and 3′‐UTR and coding regions, except for a 342‐bp segment encoding 114 amino acids (L 272 to Q 385 ) which is absent in HtNHX2 . Both hydroponics and soil culture experiments showed that the expression of HtNHX1 or HtNHX2 improved the rice tolerance to salinity. Expression of HtNHX2 , but not HtNHX1 , increased rice grain yield, harvest index, total nutrient uptake under K + ‐limited salt‐stress or general nutrient deficiency conditions. The results provide a novel insight into NHX function in plant mineral nutrition.},
doi = {10.1111/pbi.12773},
journal = {Plant Biotechnology Journal},
number = 1,
volume = 16,
place = {United Kingdom},
year = {Thu Sep 21 00:00:00 EDT 2017},
month = {Thu Sep 21 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1111/pbi.12773

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Cited by: 46 works
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