Variation in flooding tolerance in Populus deltoides 'D-124' and P. trichocarpa × P. deltoides hybrid '52-225'.

ABSTRACT: Flooding poses a substantial challenge to plant survival and productivity, particularly in riparian genera like Populus. This study examines the physiological, morphological, metabolic and molecular responses of Populus deltoides Bartram ex Marshall 'D-124' and P. trichocarpa Torr. & Gray × P. deltoides hybrid clone '52-225' under control and inundated conditions to identify differences in flooding tolerance. Under flooding conditions, physiological and cellular stress was more pronounced in P. deltoides 'D-124' than in the hybrid clone '52-225,' as evidenced by lower transpiration (E), photosynthesis (A) and chlorophyll content. In contrast, '52-225' showed reduced reactive oxygen species accumulation, suggesting better cellular function under stress. Morphologically, '52-225' produced mo

SUBMITTER: Yao T 

PROVIDER: S-EPMC12666380 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature