Coordinated leaf hydraulic thresholds maintain virtually null stomatal safety margins in poplar despite genetic variation and nutrient-induced phenotypic plasticity
David Chassagnaud, Lola Bezon, Ian Jan, Régis Fichot
This study shows that leaf hydraulic thresholds in poplar remain tightly coordinated across genotypes and treatments, maintaining near-zero stomatal safety margins despite genetic variation and nutrient-induced plasticity.
bioRxiv · Jul 13, 2026 · PreprintPlant Biology