Abstract
Melatonin acts as a crucial signaling molecule with multiple physiological functions in plant response to abiotic and biotic stresses. However, the impact and regulatory mechanism of melatonin on attenuating tomato fruit fungal decay are unclear. In this study, we investigated the potential roles of melatonin in modulating fruit resistance to Botrytis cinerea and explored related physiological and molecular mechanisms. The results revealed that disease resistance was strongly enhanced by melatonin treatment, and 50 μM was confirmed as the best concentration. Melatonin treatment increased the activities of defense-related enzymes and decreased hydrogen peroxide (H2O2) content with enhanced antioxidant enzyme activities. Moreover, we found that melatonin treatment increased methyl jasmonate (MeJA) content; up-regulated the expressions of SlLoxD, SlAOC, and SlPI II; and reduced the expressions of SlMYC2 and SlJAZ1. We postulated that melatonin played a positive role in tomato fruit resistance to Botrytis cinerea through regulating H2O2 level and JA signaling pathway.
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Claims 8
Claim · model-written summary
Melatonin enhanced tomato fruit disease resistance, with 50 μM the best concentration.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- melatonin treatmente0
- Interactor
- Botrytis cinerea
Botrytis cinereat0pathogen - Outcome
- disease resistancee0
- Direction
- enhancede0
- Value
- 50 μMe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Botrytis cinerea in Tomato Fruit”
e0“disease resistance was strongly enhanced by melatonin treatment, and 50 μM was confirmed as the best concentration”
Claim · model-written summary
Melatonin increased defense-related enzyme activities in tomato fruit.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Melatonin treatmente0
- Outcome
- activities of defense-related enzymese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Fruit”
e0“Melatonin treatment increased the activities of defense-related enzymes”
Claim · model-written summary
Melatonin decreased tomato fruit hydrogen peroxide content.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Melatonin treatmente0
- Outcome
- hydrogen peroxide (H2O2) contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Fruit”
e0“Melatonin treatment increased the activities of defense-related enzymes and decreased hydrogen peroxide (H2O2) content”
Claim · model-written summary
Melatonin increased antioxidant enzyme activities.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Melatonin treatmente0
- Outcome
- antioxidant enzyme activitiese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Fruit”
e0“Melatonin treatment increased the activities of defense-related enzymes and decreased hydrogen peroxide (H2O2) content with enhanced antioxidant enzyme activities”
Claim · model-written summary
Melatonin increased methyl jasmonate content.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- melatonin treatmente0
- Outcome
- methyl jasmonate (MeJA) contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Fruit”
e0“melatonin treatment increased methyl jasmonate (MeJA) content”
Claim · model-written summary
Melatonin upregulated SlLoxD, SlAOC, and SlPI II expression.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- melatonin treatmente0
- Gene
- SlLoxD, SlAOC, and SlPI IIe0
- Outcome
- expressions of SlLoxD, SlAOC, and SlPI IIe0
- Direction
- up-regulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Fruit”
e0“melatonin treatment increased methyl jasmonate (MeJA) content; up-regulated the expressions of SlLoxD, SlAOC, and SlPI II”
Claim · model-written summary
Melatonin reduced SlMYC2 and SlJAZ1 expression.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- melatonin treatmente0
- Gene
- SlMYC2 and SlJAZ1e0
- Outcome
- expressions of SlMYC2 and SlJAZ1e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato Fruit”
e0“melatonin treatment increased methyl jasmonate (MeJA) content; up-regulated the expressions of SlLoxD, SlAOC, and SlPI II; and reduced the expressions of SlMYC2 and SlJAZ1”
Claim · model-written summary
The authors postulated that melatonin improves Botrytis resistance through hydrogen peroxide regulation and JA signaling.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- melatonine0
- Interactor
- Botrytis cinereaBotrytis cinereae0pathogen
- Outcome
- resistance to Botrytis cinereae0
- Qualifier
- regulating H2O2 level and JA signaling pathwaye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melatonin played a positive role in tomato fruit resistance to Botrytis cinerea through regulating H2O2 level and JA signaling pathway”
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