Characterization of Genes Involved in Isoprenoid Diphosphate Biosynthesis in Maize
文献类型: 外文期刊
第一作者: Zhou, Meiliang
作者: Zhou, Meiliang;Zhang, Qian;Wang, Chenglong;Shao, Jirong;Zhou, Meiliang;Wang, Chenglong;Sun, Zhanmin;Tang, Yixiong;Wu, Yanmin;Chen, Lihui;Zhu, Xuemei
作者机构:
关键词: Chloroplast;Isopentenyl diphosphate;Maize;Mevalonate;Terpenoid biosynthesis
期刊名称:JOURNAL OF PLANT GROWTH REGULATION ( 影响因子:4.169; 五年影响因子:4.038 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Terpenoids are the largest class of secondary metabolites with indispensable functions for plant growth and development. Maize is a very important cereal crop that is grown widely throughout the world. However, many genes and gene family members involved in terpenoid biosynthesis are still unknown in maize. Through systematic analysis, 43 isoprenoid diphosphate biosynthesis-related genes were identified. These genes are members of 15 families, which encode all of the enzymes involved in the biosynthesis of the universal isoprene precursor isopentenyl diphosphate and its isomer dimethylallyl diphosphate. Using a comprehensive approach, the intron/exon structures and their responses to jasmonic acid treatment were investigated. Meta-analysis revealed that some of the genes show differential, organ-specific expression patterns in the 60 different developmental stages of maize. It was found that all 2-C-methyl-d-erythritol 4-phosphate (MEP) pathway genes present the same expression patterns which were highly expressed in leaves and showed the lowest expression in seed. All investigated MEP pathway enzymes are localized in plastids by transient assay using Arabidopsis cells. In addition, some of the enzymes, such as acetyl-CoA C-acetyltransferase, hydroxymethylglutaryl-CoA reductase, and geranylgeranyl diphosphate synthase, are encoded by multiple gene members with different expression patterns, and both homomeric and heteromeric geranyl diphosphate synthases exist in maize. The results reveal the complexity of terpenoid biosynthesis and the existence of metabolic channels for diverse terpenoids in maize.
分类号: Q94
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