Stem Photosynthesis Affects Hydraulic Resilience in the Deciduous Populusalba but Not in the Evergreen Laurus nobilis

Stem photosynthesis has been suggested to play relevant roles cope with different biotic and abiotic stress factors, including drought. In the present study, we performed measurements of stem hydraulic conductance non-structural carbohydrate content in evergreen Laurus nobilis L. deciduous Populusalba L., subjected inhibition successive exposure a drought-recovery cycle order check if may be involved allowing recovery after drought relief. shading affected growth but not P. alba saplings. By contrast, was coupled following embolism build-up under nobilis. The two study species showed behavior nonstructural carbohydrates (NSCs). differences NSCs’ trend reversal ability led significant relationship between starch corresponding values alba. Our findings suggest that plays key role maintenance functioning during especially species. This, turn, increase their vulnerability current global climate change scenarios.