What determines plant sensitivity to heat?: Individual to lifetime impacts

什么决定了植物对热的敏感性？：个体对一生的影响

• 批准号: DP240100177
• 负责人: Prof Adrienne Nicotra
• 金额: $ 42.96万
• 依托单位: The Australian National University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2024
• 资助国家: 澳大利亚
• 起止时间: 2024-01-01 至 2026-12-31
• 项目状态: 未结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP240100177
• 关键词: What; determines; plant; sensitivity; heat

Temperature is a major determinant of the distribution of species and yet the capacity to predict the thermal sensitivity of plants is extremely limited. How vulnerability varies as a plant grows from seed to adult and produces more seed is a key question. Whether chronic warming exacerbates or ameliorates effects of extreme events, e.g. triggering the plant to enlist defensive strategies, is also an open question. This project will advance fundamental understanding of how thermal tolerance varies across species and over the plant life cycle and how it scales demographically to lifetime vulnerability. The work will yield a significant advance in our capacity to predict impacts of extreme heat events on plant performance and distribution.

温度是物种分布的主要决定因素，但预测植物热敏感性的能力极其有限。一个关键问题是，随着植物从种子到成熟并产生更多种子，脆弱性如何变化。慢性变暖是否会加剧或减轻极端事件的影响，例如触发植物采取防御策略，也是一个悬而未决的问题。该项目将促进对不同物种和植物生命周期中耐热性如何变化以及它如何从人口统计学角度扩展到生命周期脆弱性的基本理解。这项工作将大大提高我们预测极端高温事件对工厂性能和分布的影响的能力。