Evaluation of carotenoid biosynthesis, accumulation and antioxidant activities in sweetcorn (Zea mays L.) during kernel development
文献类型: 外文期刊
第一作者: Liu, Haiying
作者: Liu, Haiying;Xie, Lihua;Abbasi, Arshad Mehmood;Guo, Xinbo;Mao, Jihua;Yu, Yongtao;Hu, Jian Guang;Mao, Jihua;Yu, Yongtao;Hu, Jian Guang;Yan, Shijuan;Li, Tong;Guo, Xinbo;Liu, Rui Hai;Abbasi, Arshad Mehmood
作者机构:
关键词: Accumulation;carotenoids;kernel development;sweetcorn
期刊名称:INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY ( 影响因子:3.713; 五年影响因子:3.408 )
ISSN: 0950-5423
年卷期: 2018 年 53 卷 2 期
页码:
收录情况: SCI
摘要: To have a better understanding of regulatory mechanism of carotenoid accumulation in sweetcorn (Zea mays L.), we analysed carotenoid profiles, expression patterns of carotenogenic genes and antioxidant activities in two genotypes of sweetcorn during kernel development. The results suggested that the expression of carotenogenic genes played an essential role in carotenoid accumulation and higher expression levels of carotenogenic genes obviously led to higher levels of total carotenoids. It was found that the expression of upstream genes (ZmPDS,(Zm)ZDS and ZmCRTISO) had major influence on the content of total carotenoid during kernel development. The accumulation of lycopene was closely related to the coordination of upstream and downstream genes. The expression of ZmHYD and (Zm)ZEP was influential on zeaxanthin accumulation, which was also influenced by the rate of ZmCHYB/ZmCHYE. Expression levels of ZmCHYE were still stable in order for -xanthophylls largely accumulated during kernel development. Lutein, zeaxanthin, -cryptoxanthin and -cryptoxanthin constituted the predominant carotenoids in sweetcorn. Two essential stages for carotenoid accumulation were found in sweetcorn during kernel development.
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