Aluminium uptake across the root-cell plasma membrane

铝通过根细胞质膜的吸收

• 批准号: DP0665388
• 负责人: Prof Zed Rengel
• 金额: $ 15.94万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2006
• 资助国家: 澳大利亚
• 起止时间: 2006-04-02 至 2009-04-01
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0665388
• 关键词: Aluminium; uptake; across; root; cell

Aluminium toxicity limits crop growth in acid soils that occupy about 24 million hectares of agricultural land in Australia. Liming can increase pH of the surface soil, but is frequently too expensive in the low-input Australian agriculture. Surface-applied lime is poorly effective in ameliorating subsoil acidity, and incorporating lime deep into the profile is prohibitively expensive and technically difficult. Hence, Al-resistant crop cultivars are important part of sustainable farming in Australia. This project will characterise early triggers of Al toxicity in plants, providing a foundation for increasing Al resistance in crop cultivars. Understanding the physiological basis of Al toxicity will lead to improved crop breeding strategies.

铝毒性限制了澳大利亚约2400万公顷农业用地上酸性土壤中作物的生长。石灰可以提高表层土壤的pH值，但在低投入的澳大利亚农业中往往过于昂贵。表面施用的石灰在改善底土酸度方面效果不佳，将石灰深入剖面是极其昂贵的，技术上也很困难。因此，抗铝作物品种是澳大利亚可持续农业的重要组成部分。本项目将揭示植物铝毒的早期触发因子，为提高作物品种的抗铝性提供基础。了解铝毒的生理基础将导致改进作物育种策略。