Abstract
• The effects of salt stress and adaptation on salicylic acid (SA) content and on antioxidant and lipoxygenase (LOX) enzyme activities were studied in tomato (Lycopersicon esculentum cv. Pera) cells. • NaCl-adapted cells were obtained from calli adapted to 100 mm NaCl by successive subcultures in medium supplemented with 100 mm NaCl. Salt stress treatments consisted of the addition of 100 mm NaCl to cells. • Adapted cells contained a lower concentration of SA than unadapted cells. The lower manganese-containing superoxide dismutase (Mn-SOD) and LOX activities as well as the higher glutathione reductase (GR) and ascorbate peroxidase (APX) activities in adapted cells than in unadapted cells could be correlated with the development of salt adaptation. Salt stress increased APX and LOX activities as well as lipid peroxidation in unadapted cells and increased Mn-SOD activity in both types of cells. Application of 200 µm SA + 100 mm NaCl inhibited APX activity in both unadapted and adapted cells, induced the Mn-SOD in adapted cells and increased lipid peroxidation in unadapted cells. • Our data indicate that adaptation of tomato cells to NaCl results in a higher tolerance to NaCl-induced oxidative stress and suggest a role for SA in this response.
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Claims 9
Claim · model-written summary
Salt-adapted tomato cells had lower salicylic acid concentration than unadapted cells.
- Taxon
- tomato
Solanum lycopersicume0 - Material
- Lycopersicon esculentum cv. Perae0
- Outcome
- concentration of SAe1
- Direction
- lowere1
- Comparator
- unadapted cellse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Lycopersicon esculentum cv. Pera) cells.”
e1“Adapted cells contained a lower concentration of SA than unadapted cells.”
Claim · model-written summary
Adapted cells had lower Mn-SOD and LOX activities than unadapted cells.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- manganese-containing superoxide dismutase (Mn-SOD) and LOX activitiese1
- Direction
- lowere1
- Comparator
- unadapted cellse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Lycopersicon esculentum cv. Pera) cells.”
e1“The lower manganese-containing superoxide dismutase (Mn-SOD) and LOX activities as well as the higher glutathione reductase (GR) and ascorbate peroxidase (APX) activities in adapted cells than in unadapted cells could be correlated with the development of salt adaptation.”
Claim · model-written summary
Adapted cells had higher GR and APX activities than unadapted cells.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- glutathione reductase (GR) and ascorbate peroxidase (APX) activitiese1
- Direction
- highere1
- Comparator
- unadapted cellse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Lycopersicon esculentum cv. Pera) cells.”
e1“The lower manganese-containing superoxide dismutase (Mn-SOD) and LOX activities as well as the higher glutathione reductase (GR) and ascorbate peroxidase (APX) activities in adapted cells than in unadapted cells could be correlated with the development of salt adaptation.”
Claim · model-written summary
Salt stress increased APX and LOX activities and lipid peroxidation in unadapted cells.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Salt stresse1
- Outcome
- APX and LOX activities as well as lipid peroxidatione1
- Direction
- increasede1
- Qualifier
- unadapted cellse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Lycopersicon esculentum cv. Pera) cells.”
e1“Salt stress increased APX and LOX activities as well as lipid peroxidation in unadapted cells”
Claim · model-written summary
Salt stress increased Mn-SOD activity in both adapted and unadapted cells.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Salt stresse2
- Outcome
- Mn-SOD activitye1
- Direction
- increasede1
- Qualifier
- both types of cellse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Lycopersicon esculentum cv. Pera) cells.”
e1“increased Mn-SOD activity in both types of cells.”
e2“Salt stress increased APX”
Claim · model-written summary
Salicylic acid plus salt inhibited APX activity in both cell types.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- 200 µm SA + 100 mm NaCle1
- Outcome
- APX activitye1
- Direction
- inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Lycopersicon esculentum cv. Pera) cells.”
e1“Application of 200 µm SA + 100 mm NaCl inhibited APX activity in both unadapted and adapted cells”
Claim · model-written summary
Salicylic acid plus salt induced Mn-SOD in adapted cells.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- 200 µm SA + 100 mm NaCle1
- Outcome
- Mn-SODe1
- Direction
- inducede1
- Qualifier
- adapted cellse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Lycopersicon esculentum cv. Pera) cells.”
e1“Application of 200 µm SA + 100 mm NaCl inhibited APX activity in both unadapted and adapted cells, induced the Mn-SOD in adapted cells”
Claim · model-written summary
Salicylic acid plus salt increased lipid peroxidation in unadapted cells.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- 200 µm SA + 100 mm NaCle1
- Outcome
- lipid peroxidatione1
- Direction
- increasede1
- Qualifier
- unadapted cellse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Lycopersicon esculentum cv. Pera) cells.”
e1“Application of 200 µm SA + 100 mm NaCl inhibited APX activity in both unadapted and adapted cells, induced the Mn-SOD in adapted cells and increased lipid peroxidation in unadapted cells.”
Claim · model-written summary
Salt adaptation gave tomato cells higher tolerance to salt-induced oxidative stress.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- tolerance to NaCl-induced oxidative stresse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“adaptation of tomato cells to NaCl results in a higher tolerance to NaCl-induced oxidative stress”
The same questions in other papers
salicylic acid · physiology: oxidative · Solanum lycopersicum (tomato)Results differ
2 papers in the same direction as this paper · 30 in the opposite direction
- positive
- positive
- positive
29 papers more in this group
See all 33 papers →salinity · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Results differ
13 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
19 papers more in this group
See all 23 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.