Data di Pubblicazione:
2004
Citazione:
Biological control of chestnut blight with hypovirulence : a critical analysis / M.G. Milgroom, P. Cortesi. - In: ANNUAL REVIEW OF PHYTOPATHOLOGY. - ISSN 0066-4286. - 42(2004), pp. 311-338. [10.1146/annurev.phyto.42.040803.140325]
Abstract:
Most hypovirulence in the chestnut blight fungus, Cryphonectria parasitica,
is associated with infection by fungal viruses in the family Hypoviridae. Hypovirulence
has controlled chestnut blight well in some locations in Europe and in
Michigan in the United States. In contrast, with few exceptions, biological control has
failed almost completely in eastern North America. Therapeutic treatment of individual
cankers is successful in most cases, but the success of hypovirulence at the population
level depends on the natural spread of viruses. Characteristics of three interacting
trophic levels (virus, fungus, and tree), plus the environment, determine the success
or failure of hypovirulence. Vegetative incompatibility restricts virus transmission, but
this factor alone is a poor predictor of biological control. Any factor reducing the
rate of chestnut blight epidemics enhances hypovirus invasion. Overall, however, not
enough is understood about the epidemiological dynamics of this system to determine
the crucial factors regulating the establishment of hypovirulence in chestnut forests.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Cryphonectria parasitica, Castanea spp., Cryphonectria hypovirus,
CHV
Elenco autori:
M.G. Milgroom, P. Cortesi
Link alla scheda completa: