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The Effect of Ozone Treatment on Metabolite Profile of Germinating Barley

文献类型： 外文期刊

作者： Dong, Xue 1 ; Sun, Litao 1 ; Agarwal, Manjree 1 ; Maker, Garth 1 ; Han, Yitao 1 ; Yu, Xiangyang 2 ; Ren, Yonglin 1 ;

作者机构： 1.Murdoch Univ, Coll Sci Hlth Engn & Educ, 90 South St, Perth, WA 6150, Australia

2.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, 50 Zhongling St, Nanjing 210014, Peoples R China

关键词： ozone (O-3); barley (Hordeum vulgare L.); germination; volatile organic compounds (VOCs); metabolites; head space solid-phase microextraction (HS-SPME); gas chromatography mass spectrometry (GC-MS)

期刊名称：FOODS （ 影响因子：5.561； 五年影响因子：5.94 ）

ISSN：

年卷期： 2022 年 11 卷 9 期

页码：

收录情况： SCI

摘要： Ozone is widely used to control pests in grain and impacts seed germination, a crucial stage in crop establishment which involves metabolic alterations. In this study, dormancy was overcome through after-ripening (AR) in dry barley seed storage of more than 4 weeks; alternatively, a 15-min ozone treatment could break the dormancy of barley immediately after harvest, with accelerated germination efficiency remaining around 96% until 4 weeks. Headspace solid-phase microextraction (HS-SPME) and liquid absorption coupled with gas chromatography mass spectrometry (GC-MS) were utilized for metabolite profiling of 2-, 4- and 7-day germinating seeds. Metabolic changes during barley germination are reflected by time-dependent characteristics. Alcohols, fatty acids, and ketones were major contributors to time-driven changes during germination. In addition, greater fatty acids were released at the early germination stage when subjected to ozone treatment.

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