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，但是预测植物的热敏感性的能力极为有限。脆弱性随着植物的生长而变化，并产生更多种子是一个关键问题。无论是慢性变暖加剧还是改善极端事件的影响，例如触发工厂来制定防御策略，也是一个悬而未决的问题。该项目将进一步了解热耐受性如何在物种之间以及植物生命周期之间的变化以及它如何在人口统计学上缩放到生命周期脆弱性。这项工作将在我们预测极热事件对植物性能和分布的影响的能力方面产生重大进展。