Physiological Responses of <i>Paulownia fortunei</i> to Leaf Herbivory by <i>Epicauta ruficeps</i>: Nitrogen Assimilation, Porphyrin Metabolism, and ROS-Driven Antioxidant and Phenylpropanoid Responses.

ABSTRACT: Paulownia fortunei is an important economic tree species that possesses numerous biological and economic traits, such as fast growth, strong stress resistance, and excellent wood properties. The cultivation of this species is pervasive across numerous regions of China. Epicauta ruficeps, a common pest species of P. fortunei, typically consumes the foliage of its host plant. However, there are currently no reported studies on the physiological and biochemical mechanisms underlying P. fortunei response to E. ruficeps feeding. In this study, we discovered that the enhancement of nitrogen assimilation and porphyrin metabolism directly contributes to the maintenance of the steady state of photosynthetic activity in P. fortunei leaves. Meanwhile, E. r

SUBMITTER: Wang F 

PROVIDER: S-EPMC12694431 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature