您好,欢迎访问云南高原生物资源保护与利用研究中心!   浏览风格:
联系我们|加入收藏|设为首页
当前位置:首页 - 专题栏目 - 国家基金

低温适应过程中能源植物小桐子可溶性糖积累机制及其与抗冷性的关系-王海波

日期:2016-10-21|来源:

 利用能源植物生产生物柴油与生物酒精类燃料是国家农业结构调整和生态环境综合治理的发展方向,作为能源树种,小桐子(Jatropha curcas L.)极具开发与应用潜力,因其原产热带,低温成为限制小桐子产量与种植面积进一步扩大的限制因素。研究表明,低温锻炼中淀粉的降解代谢及相应可溶性糖的积累可有效提高植物的抗低温胁迫能力。但到目前为止,低温锻炼中植物可溶性糖的积累机制及信号转导途径还不太清楚,而对于小桐子关于可溶性糖的积累与抗冷性研究基本还没有报导。以小桐子为研究材料,本项目拟研究:① 小桐子在低温锻炼中可溶性糖积累的主要途径及生理生化机制;② 低温锻炼中与可溶性糖积累相关关键基因的表达分析、分离克隆与功能解析;③ 利用上述鉴定的关键基因,对小桐子进行基因工程改良。本研究成果可以在一定程度上揭示可溶性糖在小桐子抗冷性形成中的作用机制,具有一定的科学意义和应用前景。

Production of biodiesel and bioethanol using energy plants is a developing trend for agricultural restructuring and environmental improvement. Jatropha curcas L. originating from tropical and sub-tropical areas, is a sustainable energy plant with great potential, and low temperature is an limiting factor for production and distribution. Studies showed that starch degradation and corresponding accumulation of soluble sugar could significantly enhance chilling resistance under chilling adaptation. However, the soluble sugar accumulation mechanism and signal transduction pathways in plant under chilling adaptation are still unclear, and the relationship research on soluble sugar accumulation with chilling resistance in J.curcas has no report. Using J.curcas as experimental material, the present project is going to research: 1. Main metabolic pathways and physiological biochemical mechanisms of soluble sugar accumulation in J.curcas under chilling adaptation; 2. Expression pattern analysis, cloning, and functional characterization of key genes associated with soluble sugar accumulation under chilling adaptation 3. Genetic transformation of J.curcas using the above key genes to enhance their chilling resistance. The research will clarify soluble sugar accumulation mechanism with the formation of chilling resistance in J.curcas to some extent. These results will be of scientific importance and great potential for further application.






友情链接