Abstract
Salicylic acid (SA) and jasmonic acid (JA) are essential compounds in the pathogen- and wound-signaling pathways accompanying induced expression of acidic and basic pathogenesis-related (PR) protein genes, respectively. However, on the effect of exogenously supplied SA and JA in induction of PR gene expression, conflicting results have been obtained using various plant materials at different developmental stages. There is no clear evidence on these effects in the presence of both signals at the same time. We analyzed the effect of SA on wound- and JA-induced basic PR gene expression and that of JA on SA-induced acidic Pi? gene expression in mature tobacco leaves. Wound-induced accumulation of transcripts for all 4 basic PR genes tested was enhanced in the presence of MeJA, and inhibited in the presence of SA. On the other hand, expression of all 3 acidic PR genes tested was induced by SA and was inhibited by MeJA. Using antibodies raised against acidic PR-1 and PR-2 proteins, these effects were confirmed at the protein level. These results indicated that JA works as an inducer of basic PR genes, and also as an inhibitor for acidic PR genes, while SA does the opposite.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Wound-induced transcript accumulation of all 4 basic PR genes tested was enhanced in the presence of MeJA in tobacco leaves.
- Taxon
- Tobacco
Nicotiana tabacumt0 - Treatment
- MeJAe0
- Outcome
- Wound-induced accumulation of transcripts for all 4 basic PR genese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wound-induced accumulation of transcripts for all 4 basic PR genes tested was enhanced in the presence of MeJA, and inhibited in the presence of SA”
t0“Tobacco”
Claim · model-written summary
Wound-induced transcript accumulation of all 4 basic PR genes tested was inhibited in the presence of SA in tobacco leaves.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- SAe0
- Outcome
- Wound-induced accumulation of transcripts for all 4 basic PR genese0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wound-induced accumulation of transcripts for all 4 basic PR genes tested was enhanced in the presence of MeJA, and inhibited in the presence of SA”
t0“Tobacco”
Claim · model-written summary
Expression of all 3 acidic PR genes tested was induced by SA in tobacco leaves.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- SAe0
- Outcome
- expression of all 3 acidic PR genese0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“expression of all 3 acidic PR genes tested was induced by SA and was inhibited by MeJA”
t0“Tobacco”
Claim · model-written summary
Expression of all 3 acidic PR genes tested was inhibited by MeJA in tobacco leaves.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- MeJAe0
- Outcome
- expression of all 3 acidic PR genese0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“expression of all 3 acidic PR genes tested was induced by SA and was inhibited by MeJA”
t0“Tobacco”
Claim · model-written summary
Antibodies against acidic PR-1 and PR-2 proteins confirmed these effects at the protein level.
- Taxon
- TobaccoNicotiana tabacumt0
- Gene
- acidic PR-1 and PR-2 proteinse0
- Outcome
- effects were confirmed at the protein levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using antibodies raised against acidic PR-1 and PR-2 proteins, these effects were confirmed at the protein level”
t0“Tobacco”
Claim · model-written summary
The authors conclude JA works as an inducer of basic PR genes and an inhibitor of acidic PR genes, while SA does the opposite.
- Taxon
- TobaccoNicotiana tabacumt0
- Compound
- JAe0
- Outcome
- inducer of basic PR genes, and also as an inhibitor for acidic PR genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“JA works as an inducer of basic PR genes, and also as an inhibitor for acidic PR genes, while SA does the opposite”
t0“Tobacco”
The same questions in other papers
(-)-methyl jasmonate · molecular: expression · Nicotiana tabacum (tobacco)Positive and negative results
5 papers in the same direction as this paper · 7 in the opposite direction
- negative
- no effect
- positive
9 papers more in this group
See all 13 papers →salicylic acid · molecular: expression · Nicotiana tabacum (tobacco)Positive and negative results
24 papers in the same direction as this paper · 11 in the opposite direction
- negative
- no effect
- positive
32 papers more in this group
See all 36 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.