Claim · model-written summary
Isolate M784 had the highest virus concentration, followed by L-6, with the lowest concentration in Db-1.
Verbatim
t0“Hypovirulent effect of the Cryphonectria hypovirus 1 in British isolates of Cryphonectria parasitica”
e1“Both the European CHV-1 M784 hypovirulent isolate and UK L-6 isolate formed significantly smaller lesions in sweet chestnut seedling bark than the other three isolates (Db-1, and virulent isolates FTC121 and M1275)”
e2“The highest virus concentration was detected in isolate M784, followed by L-6, with the lowest concentration in isolate Db-1”
Title
Hypovirulent effect of the Cryphonectria hypovirus 1 in British isolates of Cryphonectria parasitica
Pedro Romon‐Ochoa; Caroline Gorton; Alex Lewis; et al. Pest Management Science 2019. doi:10.1002/ps.5644
Other claims from this paper (7)
- Intervention effect The hypovirulent CHV-1 M784 isolate and UK isolate L-6 formed significantly smaller lesions on sweet chestnut seedling bark than the other three isolates.
- Observation The isolates that formed smaller lesions also tended to be slower growing in culture.
- Observation The same isolates caused less epicormic growth on the seedlings.
- Observation The same isolates had fewer stromata in the plants.
- Observation White colony colouration indicative of hypovirulence was common in colonies re-isolated from smaller lesions.
- Observation Virus sequences of L-6 and Db-1 matched the haplotype E-5 detected previously in Switzerland.
- Recommendation Isolate L-6 could potentially act as a biocontrol agent for chestnut blight in the UK, but further experiments are needed.