Alyssa T. Kullberg

Light exposure reshapes photosynthetic thermal tolerance curves, with idiosyncratic responses across 36 species.

Photosynthetic thermal tolerance is commonly quantified by heating leaves in darkness, although extreme leaf temperatures in natural canopies occur under irradiance. If light modifies physiological responses to heat stress, dark-based assays may misrepresent thermal vulnerability, yet the magnitude and predictability o...