Claim · model-written summary
The fungus attacks tobacco leaves and stems in Europe and Australia.
- Taxon
- tobacco
Nicotiana tabacume0 - Interactor
- The funguse0pathogen
- Outcome
- attacks leaves and stemse0
- Setting
- Europe and Australiae0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fungus attacks leaves and stems of tobacco seedlings and mature plants in Europe and Australia”
Title
Peronospora hyoscyami f. sp. tabacina . [Descriptions of Fungi and Bacteria].
UK, CAB International; G. Hall Descriptions of Fungi and Bacteria 1989. doi:10.1079/dfb/20056400975
Other claims from this paper (15)
- Observation Capsicum annuum is listed as naturally infected.
- Observation Nicotiana tabacum is listed as naturally infected.
- Observation Susceptible tobacco seedlings develop chlorotic leaf spots and deformity.
- Observation A diagnostic blue-grey sporophore layer covers leaf undersurfaces.
- Observation Tissue necrosis follows and apical meristem growth stops.
- Observation Disease symptoms can be delayed after infection.
- Observation Mature field plants can be destroyed within 3-4 weeks.
- Observation In the USA the fungus attacks only tobacco leaf tissues.
- Observation The pathogen is now worldwide.
- Observation Airborne spores can remain viable for two months at 20-40% relative humidity.
- Observation Spores have reportedly been transported 1,600 km.
- Observation Sporulation is favored by 20°C and 95% RH for at least 3 h.
- Association Spore liberation depends on rising temperature, falling humidity and greater insolation.
- Association Previously infected tobacco seedbeds are associated with more blue mould.
- Observation No systemic transmission has been reported despite mycelium overwintering in plant tissue.