Abstract
This study investigated the physiological and biochemical responses to salinity stress of Solanum melongena and its wild relative, Solanum torvum, commonly used as eggplant rootstock. Young plants of both species were watered during 25 days with NaCl aqueous solutions at the following four final concentrations: 0 (for the controls), 100, 200, and 300 mM. Plant growth parameters, photosynthetic pigments content, monovalent ion concentrations in roots and leaves, leaf levels of osmolytes (proline and total soluble sugars), oxidative stress markers (MDA and H2O2), non-enzymatic antioxidants (total phenolic compounds and total flavonoids), and enzymatic antioxidant activities (superoxide dismutase, catalase, glutathione reductase) were determined after the stress treatments. Salt-induced growth reduction was more significant in S. melongena than in S. torvum, especially at high salt concentrations, indicating a (slightly) higher salt tolerance of the wild species. The mechanisms of tolerance of S. torvum were partly based on the active transport of toxic ions to the leaves at high external salinity and, presumably, a better capacity to store them in the vacuoles, as well as on the accumulation of proline to higher concentrations than in the cultivated eggplant. MDA and H2O2 contents did not vary in response to the salt treatments in S. torvum. However, in S. melongena, MDA content increased by 78% when 300 mM NaCl was applied. No activation of antioxidant mechanisms, accumulation of antioxidant compounds, or increase in the specific activity of antioxidant enzymes in any of the studied species was induced by salinity. The relatively high salt tolerance of S. torvum supports its use as rootstock for eggplant cultivation in salinized soils and as a possible source of salt-tolerance genes for the genetic improvement of cultivated eggplant.
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Claims 10
Claim · model-written summary
Salt-induced growth reduction was greater in S. melongena than in S. torvum, especially at high salt concentrations.
- Taxon
- S. melongena
Solanum melongenae2 - Treatment
- NaCle1
- Outcome
- growth reductione2
- Direction
- more significante2
- Qualifier
- especially at high salt concentrationse2
- Comparator
- S. torvume2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Young plants of both species were watered during 25 days with NaCl aqueous solutions at the following four final concentrations: 0 (for the controls), 100, 200, and 300 mM”
e2“Salt-induced growth reduction was more significant in S. melongena than in S. torvum, especially at high salt concentrations”
Claim · model-written summary
S. torvum shows a slightly higher salt tolerance than the cultivated species under NaCl.
- Taxon
- Solanum torvum
Solanum torvume0 - Treatment
- NaCle1
- Outcome
- salt tolerancee2
- Direction
- highere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study investigated the physiological and biochemical responses to salinity stress of Solanum melongena and its wild relative, Solanum torvum, commonly used as eggplant rootstock”
e1“Young plants of both species were watered during 25 days with NaCl aqueous solutions at the following four final concentrations: 0 (for the controls), 100, 200, and 300 mM”
e2“indicating a (slightly) higher salt tolerance of the wild species”
Claim · model-written summary
The salt tolerance of S. torvum is partly based on active transport of toxic ions to the leaves at high external salinity.
- Taxon
- S. torvumSolanum torvume0
- Compound
- toxic ionse0
- Outcome
- tolerancee0
- Qualifier
- active transport of toxic ions to the leaves at high external salinitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mechanisms of tolerance of S. torvum were partly based on the active transport of toxic ions to the leaves at high external salinity and, presumably, a better capacity to store them in the vacuoles, as well as on the accumulation of proline to higher concentrations than in the cultivated eggplant”
Claim · model-written summary
S. torvum accumulates proline to higher concentrations than the cultivated eggplant under NaCl.
- Taxon
- S. torvumSolanum torvume0
- Treatment
- NaCle1
- Outcome
- accumulation of prolinee0
- Direction
- highere0
- Comparator
- cultivated eggplante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Young plants of both species were watered during 25 days with NaCl aqueous solutions at the following four final concentrations: 0 (for the controls), 100, 200, and 300 mM”
e0“The mechanisms of tolerance of S. torvum were partly based on the active transport of toxic ions to the leaves at high external salinity and, presumably, a better capacity to store them in the vacuoles, as well as on the accumulation of proline to higher concentrations than in the cultivated eggplant”
Claim · model-written summary
In S. melongena, MDA content increased by 78% when 300 mM NaCl was applied.
- Taxon
- S. melongenaSolanum melongenae0
- Treatment
- 300 mM NaCle0
- Outcome
- MDA contente0
- Direction
- increasede0
- Value
- 78%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in S. melongena, MDA content increased by 78% when 300 mM NaCl was applied”
Claim · model-written summary
MDA and H2O2 contents of S. torvum did not vary in response to the salt treatments.
- Taxon
- S. torvumSolanum torvume0
- Treatment
- salt treatmentse0
- Outcome
- MDA and H2O2 contentse0
- Direction
- did not varye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MDA and H2O2 contents did not vary in response to the salt treatments in S. torvum”
Claim · model-written summary
Salinity did not induce antioxidant mechanisms, antioxidant compound accumulation or antioxidant enzyme activity in any of the studied species.
- Taxon
- studied speciese0
- Treatment
- salinitye0
- Outcome
- activation of antioxidant mechanismse0
- Direction
- no_changeinferrede0
Not reportedComparator
Verbatim
e0“No activation of antioxidant mechanisms, accumulation of antioxidant compounds, or increase in the specific activity of antioxidant enzymes in any of the studied species was induced by salinity”
Claim · model-written summary
S. torvum may tolerate salt by a better capacity to store toxic ions in the vacuoles.
- Taxon
- S. torvumSolanum torvume0
- Compound
- toxic ionse0
- Outcome
- tolerancee0
- Qualifier
- a better capacity to store them in the vacuolese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mechanisms of tolerance of S. torvum were partly based on the active transport of toxic ions to the leaves at high external salinity and, presumably, a better capacity to store them in the vacuoles, as well as on the accumulation of proline to higher concentrations than in the cultivated eggplant”
Claim · model-written summary
The authors recommend S. torvum as eggplant rootstock for cultivation in salinized soils.
- Taxon
- S. torvumSolanum torvume0
- Outcome
- use as rootstock for eggplant cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relatively high salt tolerance of S. torvum supports its use as rootstock for eggplant cultivation in salinized soils and as a possible source of salt-tolerance genes for the genetic improvement of cultivated eggplant”
Claim · model-written summary
S. torvum may be a source of salt-tolerance genes for genetic improvement of cultivated eggplant.
- Taxon
- S. torvumSolanum torvume0
- Outcome
- source of salt-tolerance genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relatively high salt tolerance of S. torvum supports its use as rootstock for eggplant cultivation in salinized soils and as a possible source of salt-tolerance genes for the genetic improvement of cultivated eggplant”
The same questions in other papers
sodium chloride · growth · Solanum melongena (eggplant)Positive and negative results
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See all 16 papers →sodium chloride · physiology: oxidative · Solanum melongena (eggplant)Results agree
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- negative
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- 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.