Regional Variability of Chestnut (Castanea sativa) Tolerance Toward Blight Disease.

ABSTRACT: Since its introduction into Europe in the first half of the 20th century, Cryphonectria parasitica has been gradually spreading across the natural range of the sweet chestnut (Castanea sativa Mill.), infecting the trees and causing lethal bark cankers. Serendipitously, a hyperparasitic Cryphonectria hypovirus 1 (CHV1), which attenuates C. parasitica virulence in combination with more tolerant European chestnut species, was able to ward off the worst effect of the disease. In North America, unfortunately, the native Castanea dentata is now functionally extinct since it occurs only as root sprouts in eastern deciduous forests where it was once dominant. In our work, we investigated changes in C. parasitica populations over time and the regional variability

SUBMITTER: Jezic M 

PROVIDER: S-EPMC11548496 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature