Claim · model-written summary
Vitis rotundifolia was susceptible only to E. necator isolates from V. rotundifolia, showing complete host specialization.
- Taxon
- V. rotundifolia
Vitis rotundifoliae1 - Interactor
- Erysiphe necator
Erysiphe necatore0pathogen - Outcome
- complete host specializatione1
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitis spp. and for the grape powdery mildew pathogen, Erysiphe necator”
e1“V. rotundifolia (muscadine grape) was the only host species on which complete host specialization was evident”
Title
Omer Frenkel; Marin Talbot Brewer; Michael G. Milgroom Phytopathology 2010. doi:10.1094/phyto-01-10-0023
Other claims from this paper (6)
- Observation All E. necator isolates were pathogenic on the other Vitis species.
- Association On V. vinifera, no differences in latent period or lesion size among isolates from different source hosts.
- Observation Significant variation in aggressiveness occurred among isolates on the more resistant V. labruscana Niagara.
- Association Isolates from the wild species V. aestivalis were the most aggressive.
- Association Isolates from V. vinifera were not more aggressive than isolates from other source hosts.
- Association Isolates from the southeastern United States were more aggressive than those from the northeastern United States.