Ozone Treatment Increases the Release of VOC from Barley, Which Modifies Seed Germination

文献类型： 外文期刊

第一作者： Dong, Xue

作者： Dong, Xue;Yu, Xiangyang;Dong, Xue;Sun, Litao;Maker, Garth;Ren, Yonglin;Yu, Xiangyang;Dong, Xue;Sun, Litao;Maker, Garth;Ren, Yonglin;Yu, Xiangyang;Sun, Litao

作者机构：

关键词： ozone (O-3); barley (Hordeum vulgare L.); volatile organic compounds (VOCs); germination ability; acetic acid; headspace solid-phase microextraction (HS-SPME)

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.895； 五年影响因子：6.048 ）

ISSN： 0021-8561

年卷期： 2022 年 70 卷 10 期

页码：

收录情况： SCI

摘要： Ozone is widely used to control pests in grain and has an impact on seed germination. The germination process involves multiple secondary metabolites, such as volatile organic compounds (VOCs), which are altered under ozone treatment. Here, an optimized solid-phase microextraction coupled with gas chromatography-mass spectrometry was implemented to explore changes in VOCs from barley seeds under ozone treatment. The data demonstrated that barley released both a greater variety and quantity of VOCs under oxidative stress. The number of alcohols and hydrocarbons gradually decreased, whereas aldehydes and organic acids markedly increased with increasing ozone treatment time. Acetic acid was identified as a potential ozone stress-specific marker. Furthermore, the dosage-dependent function of acetic acid on the germination of barley was verified, namely, a low dosage of acetic acid increased the germination and vice versa. This study provided new insights into how barley responds to ozone treatment and highlighted the role of acetic acid in seed germination.

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