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Nuclear‐localized AtHSPR links abscisic acid‐dependent salt tolerance and antioxidant defense in Arabidopsis

Salt stress from soil or irrigation water limits plant growth. A T‐ insertion mutant in C24, named (), showed several phenotypes, including reduced organ size and enhanced sensitivity to environmental cues. The mutant is severely impaired under salinity levels at which wild‐type () plants grow norma... Full description

Journal Title: Plant Journal December 2015, Vol.84(6), pp.1274-1294
Main Author: Yang, Tao
Other Authors: Zhang, Liang , Hao, Hongyan , Zhang, Peng , Zhu, Haowei , Cheng, Wei , Wang, Yongli , Wang, Xinyu , Wang, Chongying
Format: Electronic Article Electronic Article
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ID: ISSN: 0960-7412 ; E-ISSN: 1365-313X ; DOI: 10.1111/tpj.13080
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recordid: wj10.1111/tpj.13080
title: Nuclear‐localized AtHSPR links abscisic acid‐dependent salt tolerance and antioxidant defense in Arabidopsis
format: Article
creator:
  • Yang, Tao
  • Zhang, Liang
  • Hao, Hongyan
  • Zhang, Peng
  • Zhu, Haowei
  • Cheng, Wei
  • Wang, Yongli
  • Wang, Xinyu
  • Wang, Chongying
subjects:
  • Heat Shock Protein Related
  • Salt Stress
  • Abscisic Acid
  • Antioxidants
  • Ion Homeostasis
  • Rna ‐Seq
  • Arabidopsis Thaliana
ispartof: Plant Journal, December 2015, Vol.84(6), pp.1274-1294
description: Salt stress from soil or irrigation water limits plant growth. A T‐ insertion mutant in C24, named (), showed several phenotypes, including reduced organ size and enhanced sensitivity to environmental cues. The mutant is severely impaired under salinity levels at which wild‐type () plants grow normally. encodes a nuclear‐localized protein with ase activity, and its expression was enhanced by high salinity and abscisic acid (). Overexpression () of significantly enhanced tolerance to salt stress by increasing the activities of the antioxidant system and by maintaining K/Na homeostasis. Quantitative ‐ analyses showed that of increased the expression of /stress‐responsive, salt overly sensitive ()‐related and antioxidant‐related genes. In addition, content was reduced in plants with or without salt stress, and exogenous restored ‐like salt tolerance to plants. exhibited increased leaf stomatal density and stomatal index, slower ‐induced stomatal closure and reduced drought tolerance relative to the . enhanced drought tolerance by reducing leaf water loss and stomatal aperture. Transcript profiling in showed a differential salt‐stress response for genes involved in accumulation of reactive oxygen species (), signaling, cell death, stress response and photosynthesis. Taken together, our results suggested that At is involved in salt tolerance in Arabidopsis through modulation of levels, ‐dependent stomatal closure, photosynthesis and K/Na homeostasis. Abiotic stress limits plant growth. Here we show that a nuclear protein with ase activity contributes to abiotic stress tolerance by scavenging reactive oxygen species, modulating ‐dependent stomatal closure, and affecting K/Na homeostasis.
language:
source:
identifier: ISSN: 0960-7412 ; E-ISSN: 1365-313X ; DOI: 10.1111/tpj.13080
fulltext: fulltext
issn:
  • 0960-7412
  • 09607412
  • 1365-313X
  • 1365313X
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titleNuclear‐localized AtHSPR links abscisic acid‐dependent salt tolerance and antioxidant defense in Arabidopsis
creatorYang, Tao ; Zhang, Liang ; Hao, Hongyan ; Zhang, Peng ; Zhu, Haowei ; Cheng, Wei ; Wang, Yongli ; Wang, Xinyu ; Wang, Chongying
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subjectHeat Shock Protein Related ; Salt Stress ; Abscisic Acid ; Antioxidants ; Ion Homeostasis ; Rna ‐Seq ; Arabidopsis Thaliana
descriptionSalt stress from soil or irrigation water limits plant growth. A T‐ insertion mutant in C24, named (), showed several phenotypes, including reduced organ size and enhanced sensitivity to environmental cues. The mutant is severely impaired under salinity levels at which wild‐type () plants grow normally. encodes a nuclear‐localized protein with ase activity, and its expression was enhanced by high salinity and abscisic acid (). Overexpression () of significantly enhanced tolerance to salt stress by increasing the activities of the antioxidant system and by maintaining K/Na homeostasis. Quantitative ‐ analyses showed that of increased the expression of /stress‐responsive, salt overly sensitive ()‐related and antioxidant‐related genes. In addition, content was reduced in plants with or without salt stress, and exogenous restored ‐like salt tolerance to plants. exhibited increased leaf stomatal density and stomatal index, slower ‐induced stomatal closure and reduced drought tolerance relative to the . enhanced drought tolerance by reducing leaf water loss and stomatal aperture. Transcript profiling in showed a differential salt‐stress response for genes involved in accumulation of reactive oxygen species (), signaling, cell death, stress response and photosynthesis. Taken together, our results suggested that At is involved in salt tolerance in Arabidopsis through modulation of levels, ‐dependent stomatal closure, photosynthesis and K/Na homeostasis. Abiotic stress limits plant growth. Here we show that a nuclear protein with ase activity contributes to abiotic stress tolerance by scavenging reactive oxygen species, modulating ‐dependent stomatal closure, and affecting K/Na homeostasis.
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titleNuclear‐localized AtHSPR links abscisic acid‐dependent salt tolerance and antioxidant defense in Arabidopsis
descriptionSalt stress from soil or irrigation water limits plant growth. A T‐ insertion mutant in C24, named (), showed several phenotypes, including reduced organ size and enhanced sensitivity to environmental cues. The mutant is severely impaired under salinity levels at which wild‐type () plants grow normally. encodes a nuclear‐localized protein with ase activity, and its expression was enhanced by high salinity and abscisic acid (). Overexpression () of significantly enhanced tolerance to salt stress by increasing the activities of the antioxidant system and by maintaining K/Na homeostasis. Quantitative ‐ analyses showed that of increased the expression of /stress‐responsive, salt overly sensitive ()‐related and antioxidant‐related genes. In addition, content was reduced in plants with or without salt stress, and exogenous restored ‐like salt tolerance to plants. exhibited increased leaf stomatal density and stomatal index, slower ‐induced stomatal closure and reduced drought tolerance relative to the . enhanced drought tolerance by reducing leaf water loss and stomatal aperture. Transcript profiling in showed a differential salt‐stress response for genes involved in accumulation of reactive oxygen species (), signaling, cell death, stress response and photosynthesis. Taken together, our results suggested that At is involved in salt tolerance in Arabidopsis through modulation of levels, ‐dependent stomatal closure, photosynthesis and K/Na homeostasis. Abiotic stress limits plant growth. Here we show that a nuclear protein with ase activity contributes to abiotic stress tolerance by scavenging reactive oxygen species, modulating ‐dependent stomatal closure, and affecting K/Na homeostasis.
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titleNuclear‐localized AtHSPR links abscisic acid‐dependent salt tolerance and antioxidant defense in Arabidopsis
authorYang, Tao ; Zhang, Liang ; Hao, Hongyan ; Zhang, Peng ; Zhu, Haowei ; Cheng, Wei ; Wang, Yongli ; Wang, Xinyu ; Wang, Chongying
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abstractSalt stress from soil or irrigation water limits plant growth. A T‐ insertion mutant in C24, named (), showed several phenotypes, including reduced organ size and enhanced sensitivity to environmental cues. The mutant is severely impaired under salinity levels at which wild‐type () plants grow normally. encodes a nuclear‐localized protein with ase activity, and its expression was enhanced by high salinity and abscisic acid (). Overexpression () of significantly enhanced tolerance to salt stress by increasing the activities of the antioxidant system and by maintaining K/Na homeostasis. Quantitative ‐ analyses showed that of increased the expression of /stress‐responsive, salt overly sensitive ()‐related and antioxidant‐related genes. In addition, content was reduced in plants with or without salt stress, and exogenous restored ‐like salt tolerance to plants. exhibited increased leaf stomatal density and stomatal index, slower ‐induced stomatal closure and reduced drought tolerance relative to the . enhanced drought tolerance by reducing leaf water loss and stomatal aperture. Transcript profiling in showed a differential salt‐stress response for genes involved in accumulation of reactive oxygen species (), signaling, cell death, stress response and photosynthesis. Taken together, our results suggested that At is involved in salt tolerance in Arabidopsis through modulation of levels, ‐dependent stomatal closure, photosynthesis and K/Na homeostasis. Abiotic stress limits plant growth. Here we show that a nuclear protein with ase activity contributes to abiotic stress tolerance by scavenging reactive oxygen species, modulating ‐dependent stomatal closure, and affecting K/Na homeostasis.
doi10.1111/tpj.13080
pages1274-1294
date2015-12