Leaf Temperatures in an Indian Tropical Forest Exceed Physiological Limits but Durations of Exposures Are Currently Not Sufficient to Cause Lasting Damage.

ABSTRACT: Increasing temperatures in the tropics will reduce performance of trees and agroforestry species and may lead to lasting damage and leaf death. One criterion to determine future forest resilience is to evaluate damage caused by temperature on Photosystem-II (PSII), a particularly sensitive component of photosynthesis. The temperature at which 50% of PSII function is lost (T₅₀) is a widely used measure of irreversible damage to leaves. To assess vulnerability to high temperatures, studies have measured T₅₀ or leaf temperatures, but rarely both. Further, because extant leaf temperature records are short, duration of exposure above thresholds like T₅₀ has not been considered. Finally, these studies do not directly assess the effect of threshold exceedance on l

SUBMITTER: Javad A 

PROVIDER: S-EPMC11808423 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature