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<p>Wheat is a&#xa0;major staple crop worldwide, yet it is highly sensitive to salt stress. However, herein, we showed that modern hexaploid wheat (<i>Triticum aestivum</i>&#xa0;L., AABBDD) <i>Plateau 602</i>, a&#xa0;spring wheat variety from the Qinghai Plateau in China, exhibited markedly higher salt tolerance than the commonly studied spring wheat varieties. <i>Plateau 602</i> seeds could germinate and continually grow under 400 mM NaCl stress. Furthermore, leaf photosynthesis parameters declined and the activities of antioxidant enzymes were increased in <i>Plateau 602</i> seedlings under salt stress. Proteomic analysis of leaves from salt-treated seedlings identified 21&#xa0;proteins with significantly altered abundance, including components of nitrogen metabolism, carbohydrate metabolism, fatty acid biosynthesis, and photosynthesis. These results indicated that <i>Plateau 602 </i>may balance photosynthetic activity and reallocating energy resources under salt stress, maintaining unique adaptive mechanisms to an adverse environment.</p>

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Physiological and Proteomic Response to Salt Stress in a Plateau Spring Wheat Variety Plateau 602

  • 期刊论文

  • 发表日期：

    2026年1月3日

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  • Xueqi Zhao,
  • Bowen Li,
  • Wanli Shi,
  • Jiahao Liu,
  • Yuwei Zhang,
  • Yuzhen Chen,
  • Cunfu Lu

摘要

Wheat is a major staple crop worldwide, yet it is highly sensitive to salt stress. However, herein, we showed that modern hexaploid wheat (Triticum aestivum L., AABBDD) Plateau 602, a spring wheat variety from the Qinghai Plateau in China, exhibited markedly higher salt tolerance than the commonly studied spring wheat varieties. Plateau 602 seeds could germinate and continually grow under 400 mM NaCl stress. Furthermore, leaf photosynthesis parameters declined and the activities of antioxidant enzymes were increased in Plateau 602 seedlings under salt stress. Proteomic analysis of leaves from salt-treated seedlings identified 21 proteins with significantly altered abundance, including components of nitrogen metabolism, carbohydrate metabolism, fatty acid biosynthesis, and photosynthesis. These results indicated that Plateau 602 may balance photosynthetic activity and reallocating energy resources under salt stress, maintaining unique adaptive mechanisms to an adverse environment.