Multigenerational elevated atmospheric CO2 concentration induced changes of wheat grain quality via altering nitrogen reallocation and starch catabolism

文献类型： 外文期刊

第一作者： Li, Hui

作者： Li, Hui;Li, Shuxin;Liu, Shengqun;Song, Fengbin;Li, Xiangnan;Wang, Zongshuai;Wang, Yaosheng;Liu, Fulai;Li, Shuxin;Li, Xiangnan;Brestic, Marian;Brestic, Marian;Li, Hui

作者机构：

关键词： Triticum aestivum; Multiple generations; Protein; End-use quality; CO2 elevation

期刊名称：ENVIRONMENTAL AND EXPERIMENTAL BOTANY （ 影响因子：6.028； 五年影响因子：6.246 ）

ISSN： 0098-8472

年卷期： 2023 年 205 卷

页码：

收录情况： SCI

摘要： Previous studies indicated the grain yield and compositions of wheat (Triticum aestivum L.) were affected by long-term elevated atmospheric CO2 concentration conditions. However, the roles of protein expression in wheat grain quality changes under multigenerational elevated atmospheric CO2 concentration are still rarely known. This study explored that the changes of grain quality in wheat offspring induced by multigenerational elevated at-mospheric CO2 concentration exposure and analyzed the roles of the differently expressed proteins using 4D proteomics in regulating the wheat grain quality. The changes of grain protein accumulation, gluten index and dough development time indicated that the nutritional and end-use quality of wheat grains were directly affected by elevated atmospheric CO2 concentration. This was mainly due to the changed expressions of a-amylase in-hibitors, glutamine synthetase, glutamate dehydrogenase, formamidase and 13-glucosidase, which regulated the starch accumulation and nitrogen metabolism in grains. This study elucidates the mechanisms underlying the effects of long-term elevated atmospheric CO2 concentration on wheat grain quality.

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