Claim · model-written summary
Berry sparsity is a major symptom.
- Interactor
- Phomopsis viticolaDiaporthe ampelinat0pathogen
- Outcome
- sparsity of berriese0
VitisNot reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“and sparsity of berries”
e1“necrosis of grapevine”
t0“Phomopsis viticola”
Title
Phomopsis viticola . [Descriptions of Fungi and Bacteria].
UK, CAB International; E. Punithalingam Descriptions of Fungi and Bacteria 1979. doi:10.1079/dfb/20056400635
Other claims from this paper (15)
- Observation Reported hosts include Parthenocissus subquinquefolia.
- Observation Reported hosts include Vitis species, with grapevine dead arm, excoriosis or necrosis.
- Observation Serious outbreaks and losses have been reported in several countries.
- Mechanism Fungal invasion of stem tissues causes necrosis extending into wood, girdling shoots and producing dead arm.
- Observation Major symptoms include vine or arm death, progressive stock and shoot desiccation and stunted leaf-bearing branches.
- Observation Symptoms include primary leaf deformation and chlorosis, black stalk and pedicel spots and flower abortion.
- Observation Symptoms include bud drying, spur death and stem or arm lesions, cankers or cortical necrosis.
- Observation In Ontario, primary infection occurs on young green shoots.
- Association Ontario infection incidence and severity depend on prior-year inoculum potential and rain in the second half of May.
- Observation Primary young-shoot lesions are superficial, whereas coalescent lesions are deep and often perennial.
- Observation The pathogen is distributed across listed countries in Africa, Asia, Australasia and Oceania, Europe and North America.
- Mechanism Transmission occurs through rain-splashed conidia liberated from pycnidia on dormant-vine spurs and clusters under wet conditions.
- Mechanism The fungus also spreads through nematodes and insect larvae.
- Mechanism Mycelium spreads through pruning wounds made with contaminated knives.
- Observation The fungus overwinters as mycelium in infected grapevine parts, especially basal buds, and carries over from the first few internodes.