Abstract
Melatonin (N-acetyl-5-methoxytryptamine) is an essential molecule which regulates plant growth and development and alleviates the damaging effects of abiotic stresses. To evaluate the important functions of melatonin in response to salinity stress, the effects of exogenous melatonin on the antioxidant system and growth of tomato (Solanum lycopersicum L.) under 150 mM NaCl stress were investigated. The application of 100 μM melatonin compensated the growth inhibition caused by salt-stress. Melatonin treated seedlings had an increased fresh and dry masses of shoots and roots. The application of 1 - 200 µM melatonin notably enhanced the relative chlorophyll content (SPAD index), root characteristics, and gas exchange in tomato seedlings subjected to salt stress compared to seedlings treated with salt stress alone. Moreover, melatonin pretreatment minimized accumulation of reactive oxygen species and improved activities of antioxidative enzymes including catalase, superoxide dismutase, glutathione reductase, and ascorbate peroxidase.
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Claims 7
Claim · model-written summary
At 100 μM, melatonin compensated salt-induced growth inhibition.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- 100 μM melatonine0
- Outcome
- growth inhibitione0
- Direction
- compensatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of 100 μM melatonin compensated the growth inhibition caused by salt-stress.”
t0“tomato seedlings”
Claim · model-written summary
Melatonin increased fresh and dry masses of seedling shoots and roots.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Melatonine0
- Outcome
- fresh and dry masses of shoots and rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Melatonin treated seedlings had an increased fresh and dry masses of shoots and roots.”
t0“tomato seedlings”
Claim · model-written summary
Melatonin enhanced relative chlorophyll content under salt stress.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- 1 - 200 µM melatonine0
- Outcome
- relative chlorophyll content (SPAD index)e0
- Direction
- enhancede0
- Comparator
- seedlings treated with salt stress alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of 1 - 200 µM melatonin notably enhanced the relative chlorophyll content (SPAD index), root characteristics, and gas exchange in tomato seedlings subjected to salt stress compared to seedlings treated with salt stress alone.”
Claim · model-written summary
Melatonin enhanced root characteristics under salt stress.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- 1 - 200 µM melatonine0
- Outcome
- root characteristicse0
- Direction
- enhancede0
- Comparator
- seedlings treated with salt stress alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of 1 - 200 µM melatonin notably enhanced the relative chlorophyll content (SPAD index), root characteristics, and gas exchange in tomato seedlings subjected to salt stress compared to seedlings treated with salt stress alone.”
Claim · model-written summary
Melatonin enhanced gas exchange under salt stress.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- 1 - 200 µM melatonine0
- Outcome
- gas exchangee0
- Direction
- enhancede0
- Comparator
- seedlings treated with salt stress alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of 1 - 200 µM melatonin notably enhanced the relative chlorophyll content (SPAD index), root characteristics, and gas exchange in tomato seedlings subjected to salt stress compared to seedlings treated with salt stress alone.”
Claim · model-written summary
Melatonin pretreatment reduced reactive oxygen species accumulation.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- melatonin pretreatmente0
- Outcome
- accumulation of reactive oxygen speciese0
- Direction
- minimizede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melatonin pretreatment minimized accumulation of reactive oxygen species”
t0“tomato seedlings”
Claim · model-written summary
Melatonin pretreatment improved activities of four antioxidative enzymes.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- melatonin pretreatmente0
- Outcome
- activities of antioxidative enzymes including catalase, superoxide dismutase, glutathione reductase, and ascorbate peroxidasee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melatonin pretreatment minimized accumulation of reactive oxygen species and improved activities of antioxidative enzymes including catalase, superoxide dismutase, glutathione reductase, and ascorbate peroxidase.”
t0“tomato seedlings”
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