The regulation of postharvest strawberry quality mediated by abscisic acid under elevated CO2 stress

文献类型： 外文期刊

第一作者： Li, Dong

作者： Li, Dong;Wang, Qingqing;Xu, Yanqun;Chen, Yanpei;Luo, Zisheng;Zhang, Xingtao;Ding, Shenghua;Xu, Yanqun;Luo, Zisheng

作者机构：

关键词： Elevated CO 2; Strawberry fruit; Transcriptomics; Abscisic acid

期刊名称：FOOD CHEMISTRY （ 影响因子：8.5； 五年影响因子：8.2 ）

ISSN： 0308-8146

年卷期： 2024 年 459 卷

页码：

收录情况： SCI

摘要： Elevated CO2 was a potential strategy for strawberry preservation. However, the regulatory mechanism remained unclear. In current study, transcriptome analysis showed that elevated CO2 played important roles in regulating strawberry fruit quality at the transcriptional level, and plant hormones metabolism at least partially involved in the regulatory process. Further, ABA was demonstrated to play important roles in the response to elevated CO2. Elevated CO2 inhibited the accumulation of ABA, which was 61% lower than that in control. Elevated CO2 repressed ABA synthesis by inhibiting NCED activity and the expression of FaNCED1/2, leading to the reduction of ABA accumulation as a result. Meanwhile, elevated CO2 also decreased ABA sensitivity by down-regulating FaSnRK2.4/2.6 and FaABI5 expression. The dual down-regulation of ABA signaling accounted for the regulation of fruit quality under elevated CO2 treatment. These results provide new insights into the mechanism of strawberry fruit response to elevated CO2.

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