Abstract
SUMMARY A destructive streak disease of tomato (Lycopersicon esculentum) was observed on the University of Ife farm. The disease killed many plants and greatly diminished the quantity and quality of fruit produced by the other plants. A virus that is readily transmitted by mechanical inoculation, by the green peach aphid (Myzus persicae) and by grafting was isolated consistently from diseased plants. The virus was propagated in Nicotiana occidentalis and assayed in Physalis angulata. It was infective after dilution to io ‐3 but not io ‐4 ; after iomin at 55 but not 60 o C; or after 5 days but not 7 days at 20–26 o C. Electron microscope examination of sap from infected N. occidentalis leaves revealed flexuous rods with a modal length of about 780 nm. Based on the host range and symptomatology, particle morphology and size, properties in vitro and serology, the virus is shown to be related to, and possibly indistinguishable from, pepper veinal mottle virus.
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Claims 4
Claim · model-written summary
Tomato streak disease killed many plants.
- Taxon
- tomato (Lycopersicon esculentum)
Solanum lycopersicume1 - Outcome
- killed many plantse0
- Setting
- University of Ife farme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A destructive streak disease of tomato (Lycopersicon esculentum) was observed on the University of Ife farm. The disease killed many plants”
e1“tomato (Lycopersicon esculentum)”
Claim · model-written summary
Disease greatly reduced tomato fruit quantity and quality.
- Taxon
- tomato (Lycopersicon esculentum)Solanum lycopersicume1
- Organ / stage
- fruite0
- Outcome
- quantity and quality of fruite0
- Direction
- greatly diminishede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The disease killed many plants and greatly diminished the quantity and quality of fruit produced by the other plants”
e1“tomato (Lycopersicon esculentum)”
Claim · model-written summary
A virus was consistently isolated from diseased plants and transmitted by inoculation, aphids, and grafting.
- Taxon
- tomato (Lycopersicon esculentum)Solanum lycopersicume1
- Interactor
- green peach aphid (Myzus persicae)
Myzus persicaee0pest - Outcome
- virus that is readily transmittede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A virus that is readily transmitted by mechanical inoculation, by the green peach aphid (Myzus persicae) and by grafting was isolated consistently from diseased plants”
e1“tomato (Lycopersicon esculentum)”
Claim · model-written summary
The associated virus was related to, and possibly indistinguishable from, pepper veinal mottle virus.
- Taxon
- tomato (Lycopersicon esculentum)Solanum lycopersicume1
- Outcome
- related to, and possibly indistinguishable from, pepper veinal mottle viruse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the virus is shown to be related to, and possibly indistinguishable from, pepper veinal mottle virus”
e1“tomato (Lycopersicon esculentum)”