Integrated Phenotypic, Physiological, Biochemical, and Transcriptomic Analyses Reveal the Molecular Response Mechanisms of Populus to Poplar Canker.

ABSTRACT: The growth process of poplar faces severe environmental challenges. Notably, poplar canker, caused by Botryosphaeria dothidea, has significantly impaired poplar productivity and ecological functions. However, research on the molecular mechanisms underlying poplar resistance to this disease remains incomplete. This study systematically elucidated the molecular mechanisms of Populus davidiana × P. alba var. pyramidalis (Pdpap) in response to B. dothidea stress by integrating phenotypic, physiological, biochemical, and transcriptomic analyses. The results demonstrated that 5 d post-inoculation with B. dothidea, the stem wound sites darkened and developed lesions. Following pathogen infection, H₂O₂ content and SOD and POD activity

SUBMITTER: Shen D 

PROVIDER: S-EPMC12842748 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature