Abstract
SUMMARY: Serological and plant-protection experiments provided evidence that potato bouquet and beet ringspot viruses are strains of tomato black ring virus. Tomato black ring and potato bouquet viruses are more closely related to each other than either is to beet ringspot virus. The three produce similar symptoms and have a similar host range. There was no evidence that they are related to tobacco ring spot or peach yellow bud mosaic viruses. In the plant-protection tests, protection between serologically related virus strains often was not reciprocal; when protection was incomplete, the symptoms produced by the second virus were milder than those in plants infected by it alone. Strains of tomato black ring virus could be arranged in order of their ability to cause symptoms in plants already infected with other strains. Although results of the plant-protection and serological tests agreed broadly, the correlation was not complete, suggesting that the tests measure different properties of the virus particles. The degree of difference between strains of tomato black ring virus seems to reflect their geographical separation, something that is perhaps to be more expected with soil-borne than with other viruses.
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Claims 9
Claim · model-written summary
Potato bouquet and beet ringspot viruses were identified as strains of tomato black ring virus.
- Interactor
- tomato black ring virusTomato black ring viruse0pathogen
- Outcome
- potato bouquet and beet ringspot viruses are strains of tomato black ring viruse0
Not reportedTaxon
Verbatim
t0“Beet Ringspot, Potato Bouquet and Tomato Black Ring Viruses”
e0“potato bouquet and beet ringspot viruses are strains of tomato black ring virus”
Claim · model-written summary
Tomato black ring and potato bouquet viruses were more closely related to one another than either was to beet ringspot virus.
Not reportedTaxon
Verbatim
e0“Tomato black ring and potato bouquet viruses are more closely related to each other than either is to beet ringspot virus”
Claim · model-written summary
The three viruses produced similar symptoms and had similar host ranges.
- Outcome
- similar symptoms and have a similar host rangee0
Not reportedTaxon
Verbatim
e0“The three produce similar symptoms and have a similar host range”
Claim · model-written summary
No relationship to tobacco ring spot or peach yellow bud mosaic viruses was found.
Not reportedTaxon
Verbatim
e0“There was no evidence that they are related to tobacco ring spot or peach yellow bud mosaic viruses”
Claim · model-written summary
Protection between related virus strains was often not reciprocal in plant protection tests.
- Outcome
- protection between serologically related virus strains often was not reciprocale0
Not reportedTaxon
Verbatim
e0“protection between serologically related virus strains often was not reciprocal”
Claim · model-written summary
When protection was incomplete, second-virus symptoms were milder than infection by that virus alone.
Verbatim
e0“when protection was incomplete, the symptoms produced by the second virus were milder than those in plants infected by it alone”
Claim · model-written summary
Tomato black ring virus strains differed in their ability to cause symptoms in plants already infected with other strains.
- Taxon
- plantsViridiplantaee0
- Interactor
- tomato black ring virusTomato black ring viruse0pathogen
- Outcome
- ability to cause symptomse0
Verbatim
e0“Strains of tomato black ring virus could be arranged in order of their ability to cause symptoms in plants already infected with other strains”
Claim · model-written summary
Plant protection and serological tests agreed broadly but incompletely.
- Outcome
- correlation was not completee0
Not reportedTaxon
Verbatim
e0“results of the plant-protection and serological tests agreed broadly, the correlation was not complete”
Claim · model-written summary
The degree of difference between tomato black ring virus strains appeared to reflect geographical separation.
- Interactor
- tomato black ring virusTomato black ring viruse0pathogen
- Outcome
- degree of difference between strains of tomato black ring viruse0
- Setting
- geographical separatione0
Not reportedTaxonDirection
Verbatim
e0“The degree of difference between strains of tomato black ring virus seems to reflect their geographical separation”