Abstract
In Nicotiana glutinosa L. formation of local lesions on lower leaves inoculated with tobacco mosaic virus increased the susceptibility of the upper leaves to infection in a subsequent inoculation. The increase in susceptibility was detected as an increase of up to 3"5-fold in the number of lesions produced on the upper leaf and a corresponding increase in the amount of virus RNA synthesized. The concentration of endogenous abscisic acid in the upper leaves was negatively correlated with susceptibility to infection. This acquired systemic susceptibility to infection in N. glutinosa is in direct contrast to the acquired systemic resistance to infection reported to occur in hypersensitive varieties of Nicotiana tabacum under similar conditions. Mechanisms which might be involved in the acquisition of systemic resistance or susceptibility are discussed.
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Claims 4
Claim · model-written summary
Lower-leaf tobacco mosaic virus lesions increased upper-leaf susceptibility to subsequent infection.
- Taxon
- Nicotiana glutinosa L.
Nicotiana glutinosae0 - Organ / stage
- upper leavese0
- Treatment
- lower leaves inoculated with tobacco mosaic viruse0
- Interactor
- tobacco mosaic virus
Tobacco mosaic viruse0pathogen - Outcome
- susceptibility of the upper leaves to infectione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Nicotiana glutinosa L. formation of local lesions on lower leaves inoculated with tobacco mosaic virus increased the susceptibility of the upper leaves to infection in a subsequent inoculation”
Claim · model-written summary
Upper-leaf lesion number increased up to 3"5-fold.
- Taxon
- Nicotiana glutinosa L.Nicotiana glutinosat0
- Outcome
- number of lesions produced on the upper leafe0
- Direction
- increasee0
- Value
- up to 3"5-folde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in susceptibility was detected as an increase of up to 3"5-fold in the number of lesions produced on the upper leaf”
t0“Nicotiana glutinosa L.”
Claim · model-written summary
Virus RNA synthesized in upper leaves increased correspondingly.
- Taxon
- Nicotiana glutinosa L.Nicotiana glutinosat0
- Interactor
- viruse0pathogen
- Outcome
- amount of virus RNA synthesizede0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a corresponding increase in the amount of virus RNA synthesized”
t0“Nicotiana glutinosa L.”
Claim · model-written summary
Upper-leaf endogenous abscisic acid concentration was negatively correlated with infection susceptibility.
- Taxon
- Nicotiana glutinosa L.Nicotiana glutinosat0
- Organ / stage
- upper leavese0
- Compound
- abscisic acide0
- Outcome
- susceptibility to infectione0
- Direction
- negatively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of endogenous abscisic acid in the upper leaves was negatively correlated with susceptibility to infection”
t0“Nicotiana glutinosa L.”
The same questions in other papers
Nicotiana tabacum · Tobacco mosaic virus · Nicotiana glutinosaPositive and negative results
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See all 13 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.