文献类型： 外文期刊
作者： Luo, Hao 1 ; He, Weiwei 2 ; Li, Dajing 2 ; Bao, Yihong 1 ; Riaz, Asad 2 ; Xiao, Yadong 2 ; Song, Jiangfeng 2 ; Liu, Chunq 1 ;
作者机构： 1.Northeast Forestry Univ, Coll Forestry, Harbin 150040, Heilongjiang, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Agroprod Proc, Nanjing 210014, Jiangsu, Peoples R China
关键词： Germinated maize kernels; Methyl jasmonate; Carotenoids; Gene expression
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： 2020 年 307 卷
页码：
收录情况： SCI
摘要： This study investigated effects of different concentrations of methyl jasmonate (MeJA) on carotenoids accumulation, radical scavenging activity and proline content in germinated maize kernels. MeJA treatment promoted carotenoids accumulation, radical scavenging activity and proline accumulation, while salicyl hydroxamic acid (SHAM) reduced carotenoids accumulation. There was a significant increase of 42.5% in lutein content when treated with 0.5 mu M MeJA. Furthermore, the transcriptional expression of seven carotenogenic genes were explored by MeJA and SHAM. The results showed that 0.5 mu M MeJA significantly increased the gene expression levels of PSY, PDS, ZDS, LCYB, LCYE, BCH1, CYP97C, and their transcript levels, which were strongly associated with carotenoids content. Treatment of MeJA affected the carotenoids biosynthesis gene and led to the accumulation of carotenoids. These new findings would help to develop innovative approach for enrichment of lutein in germinated maize kernels for further development of functional food materials.
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