Abstract
In this study the effects of drought stress on proline, protein, chlorophyll a/b, ascorbate and dehrydroascorbate were investigated in Akri and Mobil cultivars of tomato species. The seeds were cultured at 23 °C with 15-16 hours light period and irrigation was done based on field capacity control (FC), mild drought stress (⅔ FC) and severe drought stress (⅓ FC) under greenhouse conditions. After nine weeks of sowing, leaf, stem and root were isolated and studied for various indices. The results indicated that amount of proline increased significantly in mild and severe stresses in root, but in stem and leaf proline increased only under severe drought stress. Chlorophyll a and b and total protein decreased significantly in mild and severe stress in leaf, stem and root. Ascorbic acid (ASC) increased but dehydro ascorbate decreased significantly in both species. It could be concluded that in both cultivars proline and ASC content increased under severe and mild drought stress although soluble protein and chlorophyll a/b decreased under severe stress. Therefore, in tomato plants osmolyte such as proline and also ASC as an antioxidant compound increased against drought stress. Protein accumulation has protecting role under mild stress.
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Claims 8
Claim · model-written summary
Tomato root proline increased significantly under mild and severe drought.
- Taxon
- tomato
Solanum lycopersicumt0 - Organ / stage
- roote0
- Treatment
- mild and severe stressese0
- Outcome
- prolinee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“amount of proline increased significantly in mild and severe stresses in root”
t0“tomato cultivars”
Claim · model-written summary
Tomato stem and leaf proline increased only under severe drought.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- stem and leafe0
- Treatment
- severe drought stresse0
- Outcome
- prolinee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in stem and leaf proline increased only under severe drought stress”
t0“tomato cultivars”
Claim · model-written summary
Chlorophyll a and b decreased significantly under mild and severe stress in tomato leaf, stem and root.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- leaf, stem and roote0
- Treatment
- mild and severe stresse0
- Outcome
- Chlorophyll a and be0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll a and b and total protein decreased significantly in mild and severe stress in leaf, stem and root”
t0“tomato cultivars”
Claim · model-written summary
Total protein decreased significantly under mild and severe stress in tomato leaf, stem and root.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- leaf, stem and roote0
- Treatment
- mild and severe stresse0
- Outcome
- total proteine0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll a and b and total protein decreased significantly in mild and severe stress in leaf, stem and root”
t0“tomato cultivars”
Claim · model-written summary
Ascorbic acid increased in both tomato cultivars under drought.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- Ascorbic acid (ASC)e0
- Direction
- increasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ascorbic acid (ASC) increased but dehydro ascorbate decreased significantly in both species”
t0“tomato cultivars”
Claim · model-written summary
Dehydroascorbate decreased significantly in both tomato cultivars.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- dehydro ascorbatee0
- Direction
- decreasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ascorbic acid (ASC) increased but dehydro ascorbate decreased significantly in both species”
t0“tomato cultivars”
Claim · model-written summary
The authors interpret proline and ascorbic acid increases as responses against drought stress.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- increasede0
- Qualifier
- against drought stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in tomato plants osmolyte such as proline and also ASC as an antioxidant compound increased against drought stress”
Claim · model-written summary
The authors assert that protein accumulation has a protective role under mild stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- protecting rolee0
- Qualifier
- under mild stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Protein accumulation has protecting role under mild stress”
t0“tomato cultivars”
The same questions in other papers
drought · physiology: osmolytes · Solanum lycopersicum (tomato)Results differ
16 papers in the same direction as this paper · 9 in the opposite direction
- negative
- negative
- negative
22 papers more in this group
See all 26 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.