Evaluation of Biosynthesis, Accumulation and Antioxidant Activityof Vitamin E in Sweet Corn (Zea mays L.) during Kernel Development. - National Genomics Data Center (CNCB-NGDC)

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Evaluation of Biosynthesis, Accumulation and Antioxidant Activityof Vitamin E in Sweet Corn (Zea mays L.) during Kernel Development.

Lihua Xie, Yongtao Yu, Jihua Mao, Haiying Liu, Jian Guang Hu, Tong Li, Xinbo Guo, Rui Hai Liu

Author Information

Lihua Xie: School of Food Science and Engineering, South China University of Technology, Guangzhou510641, China. 201520120463@mail.scut.edu.cn.
Yongtao Yu: Crop Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China. yuyongtao@gdaas.cn.
Jihua Mao: Crop Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China. maoer08@163.com.
Haiying Liu: School of Food Science and Engineering, South China University of Technology, Guangzhou510641, China. 201520120456@mail.scut.edu.cn.
Jian Guang Hu: Crop Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China. jghu2003@263.net.
Tong Li: Department of Food Science, Stocking Hall, Cornell University, Ithaca, New York, NY 14853, USA. tl24@cornell.edu.
Xinbo Guo: School of Food Science and Engineering, South China University of Technology, Guangzhou510641, China. xbg720@gmail.com.
Rui Hai Liu: Department of Food Science, Stocking Hall, Cornell University, Ithaca, New York, NY 14853, USA. rl23@cornell.edu.

PMID: 29261149 DOI: 10.3390/ijms18122780

Sweet corn kernels were used in this research to study the dynamics of vitamin E, by evaluatingthe expression levels of genes involved in vitamin E synthesis, the accumulation of vitamin E, and the antioxidant activity during the different stage of kernel development. Results showed that expression levels of and genes increased, whereas gene dramatically decreased during kernel development. The contents of all the types of vitamin E in sweet corn had a significant upward increase during kernel development, and reached the highest level at 30 days after pollination (DAP). Amongst the eight isomers of vitamin E, the content of γ-tocotrienol was the highest, and increased by 14.9 folds, followed by α-tocopherolwith an increase of 22 folds, and thecontents of isomers γ-tocopherol, α-tocotrienol, δ-tocopherol,δ-tocotrienol, and β-tocopherol were also followed during kernel development. The antioxidant activity of sweet corn during kernel development was increased, and was up to 101.8 ± 22.3 μmol of α-tocopherol equivlent/100 g in fresh weight (FW) at 30 DAP. There was a positive correlation between vitamin E contents and antioxidant activity in sweet corn during the kernel development, and a negative correlation between the expressions of gene and vitamin E contents. These results revealed the relations amongst the content of vitamin E isomers and the gene expression, vitamin E accumulation, and antioxidant activity. The study can provide a harvesting strategy for vitamin E bio-fortification in sweet corn.

antioxidant activity gene expression kernel development sweet corn vitamin E

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Antioxidants

Gene Expression Regulation, Developmental

Gene Expression Regulation, Plant

Plant Proteins

Seeds

Vitamin E

Zea mays

Antioxidants

Plant Proteins

Vitamin E

Journal Article