Molecular mechanisms governing the role of calcium in aluminium toxicity and tolerance in plants

钙在植物铝毒性和耐受性中作用的分子机制

• 批准号: LX0452404
• 负责人: Prof Zed Rengel
• 金额: $ 2.95万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Linkage - International
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-10-13 至 2005-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LX0452404
• 关键词: Molecular; mechanisms; governing; role; calcium

Aluminium is the most important yield-limiting factor in acid soils throughout the world. The problem of aluminium toxicity is aggravated by continuous acidification of arable land. Mechanisms of aluminium toxicity in plant cells are poorly understood. The present project seeks to elucidate the molecular basis of the interaction between intracellular calcium homeostasis and plasma membrane potential in aluminium toxicity to plants. Knowledge of primary triggers of aluminium toxicity will pay off in a breeding programme aimed at selecting crop genotypes with increased resistance to aluminium toxicity.

铝是全世界酸性土壤中最重要的产量限制因素。耕地的持续酸化加剧了铝的毒性问题。人们对铝对植物细胞的毒性机制知之甚少。本项目旨在阐明铝对植物的毒性中细胞内钙稳态和质膜电位之间相互作用的分子基础。了解铝毒性的主要触发因素将在旨在选择对铝毒性具有更强抵抗力的作物基因型的育种计划中得到回报。