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Salt acclimation induced salt tolerance in wild-type and abscisic acid-deficient mutant barley

Author

Listed:
  • Zhiyu Zuo

    (Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education/ High-tech Key Laboratory of Agricultural Equipment and Intelligence of Jiangsu Province, School of Agricultural Equipment and Engineering, Jiangsu University, Zhenjiang, P.R. China)

  • Junhong Guo

    (Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, P.R. China)

  • Caiyun Xin

    (Rice Research Institute, Shandong Academy of Agricultural Science, Jinan, P.R. China)

  • Shengqun Liu

    (Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, P.R. China)

  • Hanping Mao

    (Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education/ High-tech Key Laboratory of Agricultural Equipment and Intelligence of Jiangsu Province, School of Agricultural Equipment and Engineering, Jiangsu University, Zhenjiang, P.R. China)

  • Yongjun Wang

    (Institute of Agricultural Resources and Environment, Jilin Academy of Agriculture Sciences/ State Engineering Laboratory of Maize, Changchun, P.R. China)

  • Xiangnan Li

    (Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, P.R. China)

Abstract

Salt acclimation is a process to enhance salt tolerance in plants. The salt acclimation induced salt tolerance was investigated in a spring barley (Hordeum vulgare L.) cv. Steptoe (wild type, WT) and its abscisic acid (ABA)-deficient mutant Az34. Endogenesis ABA concentration in leaf was significantly increased by salt stress in WT, while it was not affected in Az34. Under salt stress, the salt acclimated Az34 plants had 14.8% lower total soluble sugar concentration and 93.7% higher sodium (Na) concentration in leaf, compared with salt acclimated WT plants. The acclimated plants had significantly higher leaf water potential and osmotic potential than non-acclimated plants in both WT and Az34 under salt stress. The salt acclimation enhanced the net photosynthetic rate (by 22.9% and 12.3%) and the maximum quantum yield of PS II (22.7% and 22.0%) in WT and Az34 under salt stress. However, the stomatal conductance in salt acclimated Az34 plants was 28.9% lower than WT under salt stress. Besides, the guard cell pair width was significantly higher in salt acclimated Az34 plants than that in WT plants. The results indicated that the salt acclimated WT plants showed a higher salt tolerance than Az34 plants, suggesting that ABA deficiency has a negative effect on the salt acclimation induced salt tolerance in barley.

Suggested Citation

  • Zhiyu Zuo & Junhong Guo & Caiyun Xin & Shengqun Liu & Hanping Mao & Yongjun Wang & Xiangnan Li, 2019. "Salt acclimation induced salt tolerance in wild-type and abscisic acid-deficient mutant barley," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 65(10), pages 516-521.
    • Handle: RePEc:caa:jnlpse:v:65:y:2019:i:10:id:506-2019-pse
    DOI: 10.17221/506/2019-PSE
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    References listed on IDEAS

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    1. Z.W. Sun & L.K. Ren & J.W. Fan & Q. Li & K.J. Wang & M.M. Guo & L. Wang & J. Li & G.X. Zhang & Z.Y. Yang & F. Chen & X.N. Li, 2016. "Salt response of photosynthetic electron transport system in wheat cultivars with contrasting tolerance," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 62(11), pages 515-521.
    2. Zhiyu ZUO & Xiangnan LI & Chao XU & Junjie YANG & Xiancan ZHU & Shengqun LIU & Fengbin SONG & Fulai LIU & Hanping MAO, 2017. "Responses of barley Albina and Xantha mutants deficient in magnesium chelatase to soil salinity," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 63(8), pages 348-354.
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    Cited by:

    1. Zhiyu Zuo & Fan Ye & Zongshuai Wang & Shuxin Li & Hui Li & Junhong Guo & Hanping Mao & Xiancan Zhu & Xiangnan Li, 2021. "Salt acclimation induced salt tolerance in wild-type and chlorophyl b-deficient mutant wheat," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 67(1), pages 26-32.

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