Claim · model-written summary
A small number of symptomless latent infections occurred with indigenous nonpathogenic isolates.
- Taxon
- strawberry
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Fragaria ×ananassat0 - Interactor
- P. cactorum
Phytophthora cactorume0pathogen - Outcome
- symptomless latent infectionse0
- Value
- a small numbere0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“Indigenous nonpathogenic isolates of P. cactorum did not cause crown rot in cold‐stored plants, although a small number of symptomless latent infections occurred.”
t0“strawberry”
Title
T R PETTITT; G F PEGG Annals of Applied Biology 1994. doi:10.1111/j.1744-7348.1994.tb04969.x
Other claims from this paper (9)
- Intervention effect Cold-stored strawberry cultivars were more susceptible to pathogenic P. cactorum isolates than plants without cold storage.
- Observation Indigenous nonpathogenic P. cactorum isolates did not cause crown rot in cold-stored strawberries.
- Observation Most isolates causing crown rot symptoms came from infected strawberry crowns.
- Observation Two isolates from gooseberry plants were pathogenic, although their origin was uncertain.
- Association Symptomless infections initiated before cold storage led to a high incidence of death in storage and chronic wilt after planting.
- Association Infection immediately after cold storage led to rapid wilt symptoms of Phytophthora crown rot.
- Observation Infected tissue from plants that died in cold storage produced many sporangia and zoospores after plating in water for 24 h.
- Mechanism The authors infer that importing non-indigenous inoculum with planting material likely causes crown rot outbreaks in previously unaffected areas.
- Mechanism The authors propose that cold-induced susceptibility together with latent infection or debris may trigger sudden large crown rot outbreaks.