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
作者： Zeng, Ting 1 ; Fang, Baohua 2 ; Huang, Fenglin 2 ; Dai, Li 2 ; Tang, Zhi 4 ; Tian, Jinglin 1 ; Cao, Guodong 3 ; Meng, Xua 1 ;
作者机构： 1.Beijing Normal Univ Hong Kong Baptist Univ United, Food Sci & Technol Program, Zhuhai 519087, Guangdong, Peoples R China
2.Hunan Rice Res Inst, Changsha 410125, Hunan, Peoples R China
3.Hong Kong Baptist Univ, Dept Chem, State Key Lab Environm & Biol Anal, Hong Kong, Peoples R China
4.Guangdong Med Univ, Dept Environm & Occupat Hlth, Dongguan Key Lab Environm Med, Sch Publ Hlth, Dongguan 523000, Guangdong, Peoples R China
5.Henan Univ, Sch Chem & Chem Engn, Henan Int Joint Lab Med Plants Utilizat, Kaifeng 475004, Henan, Peoples R China
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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