Understanding Photosynthetic Acclimation to Temperature

了解光合作用对温度的适应

• 批准号: 2594574
• 金额: --
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2594574
• 关键词: Understanding; Photosynthetic; Acclimation; Temperature

Growing human populations are increasing demand for food, but at the same time, climates are changing and, crucially, becoming more variable. Changes in climate are undermining efforts to increase crop productivity, threatening food security. In the UK climate, it is expected that we will have warmer wetter winters and hotter drier summers, with periods of flood, drought and heat expected to increase. This project will build on previous work in the supervisors' laboratory to explore the responses of plants to temperature stress. We have previously shown that the model brassica species Arabidopsis thaliana is able to acclimate its photosynthetic capacity to changes in temperature and that this acclimation is essential to optimising seed production. This project will extend these measurements into agronomically important crop species, including Brassica napus and Brassica rapa, and ask to what extent the same processes are important. Work will involve the latest techniques in plant physiology (gas exchange, optical spectropscopy) with molecular biological and biochemical approaches to understand the molecular basis of temperature acclimation. This work will make a key contribution to understanding the limitations on crop productivity and will help to open up new avenues in crop breeding to address the world food crisis.

不断增长的人口增加了对食物的需求，但与此同时，气候也在变化，而且至关重要的是，气候变得更加多变。气候变化正在破坏提高作物产量的努力，威胁粮食安全。在英国的气候，预计我们将有温暖潮湿的冬天和炎热干燥的夏天，洪水，干旱和高温预计将增加。这个项目将建立在以前的工作在主管的实验室，以探索植物对温度胁迫的反应。我们以前已经表明，模式芸苔属物种拟南芥能够适应其光合能力的温度变化，这种适应是必不可少的优化种子生产。该项目将把这些测量扩展到农艺学上重要的作物物种，包括甘蓝型油菜和芜菁，并询问同样的过程在多大程度上重要。工作将涉及植物生理学的最新技术（气体交换，光学光谱）与分子生物学和生物化学方法，以了解温度驯化的分子基础。这项工作将为了解作物生产力的局限性做出重要贡献，并将有助于开辟作物育种的新途径，以应对世界粮食危机。