Trehalose Metabolism-Related Genes in Maize

文献类型: 外文期刊

第一作者: Zhou, Mei-Liang

作者: Zhou, Mei-Liang;Zhang, Qian;Shao, Ji-Rong;Zhou, Mei-Liang;Sun, Zhan-Min;Liu, Bo-Xin;Zhang, Kai-Xuan;Tang, Yi-Xiong;Wu, Yan-Min;Chen, Li-Hui;Zhu, Xue-Mei

作者机构:

关键词: Abscisic acid;Hexokinase;Jasmonic acid;Metabolic engineering;NaCl stress;Trehalose 6-phosphate

期刊名称:JOURNAL OF PLANT GROWTH REGULATION ( 影响因子:4.169; 五年影响因子:4.038 )

ISSN: 0721-7595

年卷期: 2014 年 33 卷 2 期

页码:

收录情况: SCI

摘要: Maize is a cereal crop that is grown widely throughout the world in a range of agro-ecological environments. Trehalose is a nonreducing disaccharide of glucose that has been associated with tolerance to different stress conditions, including salt and drought. Bioinformatic analysis of genes involved in trehalose biosynthesis and degradation in maize has not been reported to date. Through systematic analysis, 1 degradation-related and 36 trehalose biosynthesis-related genes were identified. The conserved domains and phylogenetic relationships among the deduced maize proteins and their homologs, isolated from other plant species such as Arabidopsis and rice, were revealed. Using a comprehensive approach, the intron/exon structures and expression patterns of all identified genes and their responses to salt stress, jasmonic acid, and abscisic acid treatment were analyzed. Microarray data demonstrated that some of the genes show differential, organ-specific expression patterns in the 60 different developmental stages of maize. It was discovered that some of the key enzymes such as hexokinase, trehalose-6-phosphate synthase, and trehalose-6-phosphate phosphatase are encoded by multiple gene members with different expression patterns. The results highlight the complexity of trehalose metabolism and provide useful information for improving maize stress tolerance through genetic engineering.

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