Abstract
SUMMARY Four host-coded 'pathogenesis-related' proteins accumulate systemically in local-lesion-forming varieties of tobacco after infection with tobacco mosaic virus. It has been suggested that they are involved in the acquired systemic resistance of plants to a second inoculation. Pathogenesis-related protein concentration and amount of resistance (reduction in size and number of lesions formed in the second inoculation) were measured at various times after the first inoculation. The results showed no quantitative or temporal relationship between amounts of resistance and pathogenesis-related proteins. In particular, resistance could be demonstrated in leaves before detectable accumulation of pathogenesis-related protein. Abscisic acid sprayed on plants induced an apparent resistance without inducing pathogenesis-related proteins. Low doses of methyl benzimidazol-2yl-carbamate caused accumulation of pathogenesis-related protein but not resistance. Nicotiana glutinosa plants accumulated large amounts of a similar protein after infection, but became more susceptible to a second inoculation. All these results suggest that the pathogenesis-related proteins do not play a central role in the mechanism of acquired systemic resistance.
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Claims 8
Claim · model-written summary
Amounts of resistance and pathogenesis-related proteins showed no quantitative or temporal relationship in tobacco.
- Taxon
- tobacco
Nicotiana tabacume0 - Interactor
- tobacco mosaic virus
Tobacco mosaic viruse0pathogen - Gene
- pathogenesis-related proteinse1
- Outcome
- quantitative or temporal relationship between amounts of resistance and pathogenesis-related proteinse1
- Direction
- no_changeinferrede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulate systemically in local-lesion-forming varieties of tobacco after infection with tobacco mosaic virus”
e1“The results showed no quantitative or temporal relationship between amounts of resistance and pathogenesis-related proteins”
Claim · model-written summary
In tobacco, resistance could be demonstrated in leaves before detectable accumulation of pathogenesis-related protein.
- Taxon
- tobaccoNicotiana tabacume0
- Organ / stage
- leavese2
- Outcome
- resistance could be demonstratede2
- Qualifier
- before detectable accumulation of pathogenesis-related proteine2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulate systemically in local-lesion-forming varieties of tobacco after infection with tobacco mosaic virus”
e2“resistance could be demonstrated in leaves before detectable accumulation of pathogenesis-related protein”
Claim · model-written summary
Abscisic acid sprayed on tobacco plants induced an apparent resistance without inducing pathogenesis-related proteins.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Abscisic acid sprayed on plantse3
- Outcome
- apparent resistancee3
- Direction
- inducede3
- Qualifier
- without inducing pathogenesis-related proteinse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulate systemically in local-lesion-forming varieties of tobacco after infection with tobacco mosaic virus”
e3“Abscisic acid sprayed on plants induced an apparent resistance without inducing pathogenesis-related proteins”
Claim · model-written summary
Low doses of methyl benzimidazol-2yl-carbamate increased accumulation of pathogenesis-related protein in tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Low doses of methyl benzimidazol-2yl-carbamatee4
- Outcome
- accumulation of pathogenesis-related proteine4
- Direction
- increaseinferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulate systemically in local-lesion-forming varieties of tobacco after infection with tobacco mosaic virus”
e4“Low doses of methyl benzimidazol-2yl-carbamate caused accumulation of pathogenesis-related protein but not resistance”
Claim · model-written summary
Low doses of methyl benzimidazol-2yl-carbamate did not produce resistance in tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Low doses of methyl benzimidazol-2yl-carbamatee4
- Outcome
- resistancee4
- Direction
- no_changeinferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulate systemically in local-lesion-forming varieties of tobacco after infection with tobacco mosaic virus”
e4“Low doses of methyl benzimidazol-2yl-carbamate caused accumulation of pathogenesis-related protein but not resistance”
Claim · model-written summary
Nicotiana glutinosa accumulated large amounts of a similar protein after infection.
- Taxon
- Nicotiana glutinosa
Nicotiana glutinosae5 - Treatment
- after infectione5
- Outcome
- accumulated large amounts of a similar proteine5
- Qualifier
- large amountse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Nicotiana glutinosa plants accumulated large amounts of a similar protein after infection, but became more susceptible to a second inoculation”
Claim · model-written summary
Nicotiana glutinosa became more susceptible to a second inoculation.
- Taxon
- Nicotiana glutinosaNicotiana glutinosae5
- Outcome
- more susceptible to a second inoculatione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Nicotiana glutinosa plants accumulated large amounts of a similar protein after infection, but became more susceptible to a second inoculation”
Claim · model-written summary
Pathogenesis-related proteins do not play a central role in the mechanism of acquired systemic resistance in tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Gene
- pathogenesis-related proteinse6
- Outcome
- central role in the mechanism of acquired systemic resistancee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulate systemically in local-lesion-forming varieties of tobacco after infection with tobacco mosaic virus”
e6“All these results suggest that the pathogenesis-related proteins do not play a central role in the mechanism of acquired systemic resistance”
The same questions in other papers
carbendazim · disease · Nicotiana tabacum (tobacco)Results agree
1 paper in the same direction as this paper
- no effect
application · disease · Nicotiana tabacum (tobacco)Positive and negative results
24 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- positive
- no effect
- no effect
27 papers more in this group
See all 31 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.