Comparative Evaluation on Vitamin E and Carotenoid Accumulation in Sweet Corn (Zea mays L.) Seedlings under Temperature Stress
文献类型： 外文期刊
作者： Xiang, Nan 1 ; Li, Chunyan 2 ; Li, Gaoke 2 ; Yu, Yongtao 2 ; Hu, Jianguang 2 ; Guo, Xinbo 1 ;
作者机构： 1.South China Univ Technol, Sch Food Sci & Engn, Overseas Expertise Intro Ctr Discipline Innovat F, Guangzhou 510640, Guangdong, Peoples R China
2.Guangdong Acad Agr Sci, Crop Res Inst, Key Lab Crops Genet Improvement Guangdong Prov, Guangzhou 510640, Guangdong, Peoples R China
关键词： sweet corn; temperature stress; vitamin E; carotenoids; biosynthesis
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）
ISSN： 0021-8561
年卷期： 2019 年 67 卷 35 期
页码：
收录情况： SCI
摘要： This study aims to investigate the response profiles of vitamin E and carotenoids on transcription and metabolic levels of sweet corn seedlings under temperature stress. The treated temperatures were set as 10 degrees C (low temperature, LT), 25 degrees C (control, CK), and 40 degrees C (high temperature, HT) for sweet corn seedlings. The gene expression profiles of vitamin E and carotenoids biosynthesis pathways were analyzed by real time quantitative polymerase chain reaction (RT-qPCR), and the composition profiles were analyzed by high performance liquid chromatography (HPLC). Results showed that vitamin E gradually accumulated in response to LT stress but was limited by HT stress. The increase of carotenoids was suppressed by LT stress whereas HT stress promoted it. The existing results elaborated the interactive and competitive relationships of vitamin E and carotenoids in sweet corn seedlings to respond to extreme temperature stress at transcriptional and metabolic levels. The present study would improve sweet corn temperature resilience with integrative knowledge in the future.
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