文献类型： 外文期刊
作者： Li, Yu-Ting 1 ; Li, Yue-Nan 1 ; Zhang, Qiang 1 ; Yang, Cheng 3 ; Xu, Yan-Ni 1 ; Zhao, Shi-Jie 1 ; Qi, Xue-Li 4 ; Li, Xiang-Dong 3 ; Zhang, Zi-Shan 1 ;
作者机构： 1.Shandong Agr Univ, Coll Life Sci, State Key Lab Wheat Improvement, Tai An 271018, Shandong, Peoples R China
2.Shandong Agr Univ, Coll Agron, Tai An 271018, Shandong, Peoples R China
3.Zhengzhou Univ, Wheat Res Inst, Henan Acad Agr Sci, Postgrad T&R Base, Zhengzhou 450002, Henan, Peoples R China
4.Henan Acad Agr Sci, Inst Crops Mol Breeding, Zhengzhou 450002, Henan, Peoples R China
期刊名称：PLANT PHYSIOLOGY （ 影响因子：6.9； 五年影响因子：7.7 ）
ISSN： 0032-0889
年卷期： 2025 年 199 卷 1 期
页码：
收录情况： SCI
摘要： Overwintering performance limits the distribution range and yield of winter wheat (Triticum aestivum). Systematic research on the overwintering strategies of wheat is lacking. We conducted a detailed analysis of structural, physiological, and metabolic changes in the wheat leaves of plants growing at coordinates 36 degrees 11(y)N, 117 degrees 7(y)E from autumn to the following spring. Light-heat resources and multiple stresses, including cold, bright light, and repeated freeze-thaw cycles, coexist in winter. Wheat leaves retained a complete photosynthetic apparatus, induced sustained nonphotochemical quenching (NPQ) during the cold period in winter, and relaxed NPQ rapidly during the warm period. Thus, the photosynthetic apparatus of wheat switched quickly between photosynthetic carbon assimilation and the photoprotective state during the winter. This response is different from that of evergreen conifers, which cease growth and photosynthetic carbon assimilation and are in a photoprotective state throughout the winter. The unique overwintering strategy of wheat allows it to effectively use light-heat resources in winter but leads to oxidative damage to the biomembrane and an imbalanced cellular redox, despite increased levels of the secondary metabolites phenylpropanoid and antioxidant flavonoids, restricting the expansion of winter wheat to colder regions. Wheat adopts a physiological and biochemical acclimation strategy to overwintering different from that of conifers.
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