Abstract
This study aimed to determine the effects of exogenous application of salicylic acid (SA) on the toxic effects of salt in relation to ethylene and polyamine synthesis, and to correlate these traits with the expression of genes involved in ethylene and polyamine metabolism in two tomato species differing in their sensitivity to salt stress, Solanum lycopersicum cv Ailsa Craig and its wild salt-resistant relative Solanum chilense. In S. chilense, treatment with 125 mM NaCl improved plant growth, increased production of ethylene, endogenous salicylic acid and spermine. The production was related to a modification of expression of genes involved in ethylene and polyamine metabolism. In contrast, salinity decreased plant growth in S. lycopersicum without affecting endogenous ethylene, salicylic or polyamine concentrations. Exogenous application of salicylic acid at 0.01 mM enhanced shoot growth in both species and affected ethylene and polyamine production in S. chilense. Concomitant application of NaCl and salicylic acid improved osmotic adjustment, thus suggesting that salt and SA may act in synergy on osmolyte synthesis. However, the beneficial impact of exogenous application of salicylic acid was mitigated by salt stress since NaCl impaired endogenous SA accumulation in the shoot and salicylic acid did not improve plant growth in salt-treated plants. Our results thus revealed that both species respond differently to salinity and that salicylic acid, ethylene and polyamine metabolisms are involved in salt resistance in S. chilense.
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Claims 11
Claim · model-written summary
Salt treatment improved growth of S. chilense.
- Taxon
- S. chilense
.jpg?width=60)
Solanum chilensee0 - Treatment
- 125 mM NaCle0
- Outcome
- plant growthe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“In S. chilense, treatment with 125 mM NaCl improved plant growth”
Claim · model-written summary
Salt treatment increased ethylene, endogenous salicylic acid and spermine production in S. chilense.
- Taxon
- S. chilenseSolanum chilensee0
- Treatment
- 125 mM NaCle0
- Outcome
- production of ethylene, endogenous salicylic acid and sperminee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In S. chilense, treatment with 125 mM NaCl improved plant growth, increased production of ethylene, endogenous salicylic acid and spermine.”
Claim · model-written summary
Production changes in S. chilense were related to altered expression of ethylene and polyamine metabolic genes.
- Taxon
- S. chilenseSolanum chilensee1
- Gene
- genes involved in ethylene and polyamine metabolisme0
- Outcome
- productione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The production was related to a modification of expression of genes involved in ethylene and polyamine metabolism.”
e1“In S. chilense, treatment with 125 mM NaCl improved plant growth, increased production of ethylene, endogenous salicylic acid and spermine.”
Claim · model-written summary
Salinity decreased growth of S. lycopersicum.
- Taxon
- S. lycopersicum
Solanum lycopersicume0 - Treatment
- salinitye0
- Outcome
- plant growthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity decreased plant growth in S. lycopersicum”
Claim · model-written summary
Salinity did not affect endogenous ethylene, salicylic acid or polyamine concentrations in S. lycopersicum.
- Taxon
- S. lycopersicumSolanum lycopersicume0
- Treatment
- salinitye0
- Outcome
- endogenous ethylene, salicylic or polyamine concentrationse0
- Direction
- without affectinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity decreased plant growth in S. lycopersicum without affecting endogenous ethylene, salicylic or polyamine concentrations.”
Claim · model-written summary
Exogenous salicylic acid enhanced shoot growth in S. chilense.
- Taxon
- S. chilenseSolanum chilensee0
- Treatment
- salicylic acid at 0.01 mMe0
- Outcome
- shoot growthe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous application of salicylic acid at 0.01 mM enhanced shoot growth in both species and affected ethylene and polyamine production in S. chilense.”
e1“In S. chilense, treatment with 125 mM NaCl”
Claim · model-written summary
Exogenous salicylic acid enhanced shoot growth in S. lycopersicum.
- Taxon
- S. lycopersicumSolanum lycopersicume1
- Treatment
- salicylic acid at 0.01 mMe0
- Outcome
- shoot growthe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous application of salicylic acid at 0.01 mM enhanced shoot growth in both species”
e1“salinity decreased plant growth in S. lycopersicum”
Claim · model-written summary
Exogenous salicylic acid affected ethylene and polyamine production in S. chilense.
- Taxon
- S. chilenseSolanum chilensee0
- Treatment
- salicylic acid at 0.01 mMe0
- Outcome
- ethylene and polyamine productione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous application of salicylic acid at 0.01 mM enhanced shoot growth in both species and affected ethylene and polyamine production in S. chilense.”
Claim · model-written summary
Combined NaCl and salicylic acid improved osmotic adjustment.
- Taxon
- S. chilenseSolanum chilensee1
- Treatment
- NaCl and salicylic acide0
- Outcome
- osmotic adjustmente0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concomitant application of NaCl and salicylic acid improved osmotic adjustment”
e1“In S. chilense, treatment with 125 mM NaCl”
e2“S. lycopersicum”
Claim · model-written summary
NaCl impaired endogenous salicylic acid accumulation in shoots.
- Taxon
- S. chilenseSolanum chilensee1
- Organ / stage
- shoote0
- Treatment
- NaCle0
- Outcome
- endogenous SA accumulatione0
- Direction
- impairede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl impaired endogenous SA accumulation in the shoot”
e1“In S. chilense, treatment with 125 mM NaCl”
Claim · model-written summary
Salicylic acid did not improve growth of salt-treated plants.
- Taxon
- S. chilenseSolanum chilensee1
- Treatment
- salicylic acide0
- Outcome
- plant growthe0
- Direction
- did not improvee0
- Qualifier
- salt-treated plantse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salicylic acid did not improve plant growth in salt-treated plants.”
e1“In S. chilense, treatment with 125 mM NaCl”
The same questions in other papers
salicylic acid · growth · Solanum lycopersicum (tomato)Results differ
57 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
57 papers more in this group
See all 61 papers →sodium chloride · growth · Solanum chilenseResults agree
1 paper in the same direction as this paper
- positive
salinity · growth · Solanum lycopersicum (tomato)Positive and negative results
260 papers in the same direction as this paper · 39 in the opposite direction
- negative
- negative
- negative
296 papers more in this group
See all 300 papers →salinity · physiology: hormones · Solanum lycopersicum (tomato)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
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.