Abstract
The influence of salicylic acid (SA) on elicitation of defense mechanisms in Arabidopsis (Arabidopsis thaliana) seeds and seedlings was assessed by physiological measurements combined with global expression profiling (proteomics). Parallel experiments were carried out using the NahG transgenic plants expressing the bacterial gene encoding SA hydroxylase, which cannot accumulate the active form of this plant defense elicitor. SA markedly improved germination under salt stress. Proteomic analyses disclosed a specific accumulation of protein spots regulated by SA as inferred by silver-nitrate staining of two-dimensional gels, detection of carbonylated (oxidized) proteins, and neosynthesized proteins with [35S]-methionine. The combined results revealed several processes potentially affected by SA. This molecule enhanced the reinduction of the late maturation program during early stages of germination, thereby allowing the germinating seeds to reinforce their capacity to mount adaptive responses in environmental water stress. Other processes affected by SA concerned the quality of protein translation, the priming of seed metabolism, the synthesis of antioxidant enzymes, and the mobilization of seed storage proteins. All the observed effects are likely to improve seed vigor. Another aspect revealed by this study concerned the oxidative stress entailed by SA in germinating seeds, as inferred from a characterization of the carbonylated (oxidized) proteome. Finally, the proteomic data revealed a close interplay between abscisic signaling and SA elicitation of seed vigor.
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Claims 7
Claim · model-written summary
Salicylic acid improved germination under salt stress.
- Taxon
- Arabidopsis
Arabidopsist0 - Treatment
- SAe0
- Outcome
- germinatione0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA markedly improved germination under salt stress.”
t0“Arabidopsis”
Claim · model-written summary
Salicylic acid regulated accumulation of protein spots.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- SAe0
- Outcome
- accumulation of protein spotse0
- Direction
- accumulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Proteomic analyses disclosed a specific accumulation of protein spots regulated by SA”
t0“Arabidopsis”
Claim · model-written summary
Salicylic acid enhanced reinduction of the late maturation program during early germination.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- This moleculee0
- Outcome
- reinduction of the late maturation programe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This molecule enhanced the reinduction of the late maturation program during early stages of germination”
t0“Arabidopsis”
Claim · model-written summary
Salicylic acid affected protein translation quality, seed metabolism priming, and antioxidant enzyme synthesis.
- Taxon
- ArabidopsisArabidopsist0
- Outcome
- quality of protein translation, the priming of seed metabolism, the synthesis of antioxidant enzymese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Other processes affected by SA concerned the quality of protein translation, the priming of seed metabolism, the synthesis of antioxidant enzymes”
t0“Arabidopsis”
Claim · model-written summary
Salicylic acid affected mobilization of seed storage proteins.
- Taxon
- ArabidopsisArabidopsist0
- Outcome
- mobilization of seed storage proteinse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the mobilization of seed storage proteins”
t0“Arabidopsis”
Claim · model-written summary
Salicylic acid entailed oxidative stress in germinating seeds.
- Taxon
- ArabidopsisArabidopsist0
- Outcome
- oxidative stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the oxidative stress entailed by SA in germinating seeds”
t0“Arabidopsis”
Claim · model-written summary
Proteomic data showed interplay between abscisic signaling and salicylic acid elicitation of seed vigor.
- Taxon
- ArabidopsisArabidopsist0
- Compound
- SAe0
- Outcome
- seed vigore0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the proteomic data revealed a close interplay between abscisic signaling and SA elicitation of seed vigor”
t0“Arabidopsis”
The same questions in other papers
salicylic acid · growth · ArabidopsisPositive and negative results
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See all 11 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.