Mass spectrometry-based metabolomics investigation on two different indica rice grains (Oryza sativa L.) under cadmium stress

文献类型： 外文期刊

第一作者： Zeng, Ting

作者： Zeng, Ting;Tian, Jinglin;Lei, Bo;Fang, Baohua;Huang, Fenglin;Dai, Li;Zeng, Ting;Tian, Jinglin;Cao, Guodong;Meng, Xuanlin;Liu, Yuanchen;Cai, Zongwei;Tang, Zhi;Lu, Minghua

作者机构：

关键词： Rice; Cadmium; Metabolomics; LC-MS; GC-MS

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

ISSN： 0308-8146

年卷期： 2021 年 343 卷

页码：

收录情况： SCI

摘要： Cadmium is a toxic environmental pollutant that is readily absorbed by rice grains and poses serious threats to human health. The selection and breeding of rice varieties with low cadmium accumulation is one of the most economical and ecological methods to reduce cadmium exposure. In this study, two different indica rice grains under cadmium stress were subjected to mass spectrometry-based metabolomics analysis for the first time. When the cadmium concentration increased in rice grains, most carbohydrates and amino acids were down-regulated, except myoinositol that can prevent cadmium toxicity, which was up-regulated. D-Mannitol and L-cysteine were up-regulated with the increase of cadmium concentration in low-cadmium-accumulating rice. Also, organic acids were activated especially 13-(S)-hydroperoxy-9(Z),11(E),15(Z)-octadecatrienoic acid that is related to the alphalinolenic acid metabolism and jasmonic acid production. The determination of biomarkers and characterization of metabolic pathways might be helpful for the selection of rice varieties with low cadmium accumulation.

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