Alternative Oxidase to Optimise Plant Growth and Stress Tolerance

优化植物生长和抗逆性的替代氧化酶

• 批准号: DP200102452
• 负责人: Prof James Whelan
• 金额: $ 30.54万
• 依托单位: La Trobe University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2020
• 资助国家: 澳大利亚
• 起止时间: 2020-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP200102452
• 关键词: Alternative; Oxidase; Optimise; Plant; Growth

Biomass accumulation in plants is the balance of CO2 fixed into carbohydrates through photosynthesis and carbohydrate burned (respired), ~ 50% of fixed CO2, to fuel growth. Plants possess energy conserving and non-conserving respiratory pathways. The alternative energy non-conserving pathway appears wasteful but is necessary for plant tolerance to adverse growth conditions. Our research has achieved modification of the alternative respiratory pathway that positively impacts plant growth. We will dissect the mechanism(s) of how the alternative respiratory pathway stimulates growth, from a molecular level to whole plant physiology, answering a long-standing question of the role of the alternative respiratory pathway in plant cell biology.

植物中生物量的积累是通过光合作用和碳水化合物燃烧（呼吸）（固定二氧化碳的约50％）固定在碳水化合物中的平衡，以燃料生长。植物具有节能和不受欢迎的呼吸道途径。替代能量非连接途径似乎很浪费，但对于植物对不利生长条件的耐受是必不可少的。我们的研究已经对替代呼吸道途径进行了修改，从而对植物生长产生积极影响。我们将剖析替代呼吸途径如何刺激从分子水平到整个植物生理学的生长的机制，回答了替代呼吸途径在植物细胞生物学中的作用的长期问题。