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

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。随着植物从种子生长到成虫并产生更多种子，脆弱性如何变化是一个关键问题。慢性变暖是否会加剧或缓解极端事件的影响，例如触发植物采取防御策略，也是一个悬而未决的问题。该项目将促进对耐热性如何在不同物种和植物生命周期中变化，以及如何根据人口统计数据调整到终生脆弱性的基本理解。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。

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.