ArticlePloS one2022
Transcriptome and physiological analysis of increase in drought stress tolerance by melatonin in tomato.
Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 44 citations in OpenAlex.
- Melatonin-enabled omics: understanding plant responses to single and combined abiotic stresses for climate-smart agriculture.GM crops & food · 2026Review
- Investigation of the Effects of MT on the Antioxidant Capacity ofPlants (Basel, Switzerland) · 2026Article
- Integrative WGCNA analysis uncovers the molecular framework of melatonin-mediated drought stress mitigation in potato.BMC plant biology · 2026Article
- Plant melatonin: roles and regulatory mechanisms in plant growth, development, and responses to biotic and abiotic stresses.Plant signaling & behavior · 2025Review
- Review
- Effects of Melatonin Pre- and Post-Drought Treatment on Oxidative Stress Markers and Expression of Proline-Related Transcripts in Young Wheat Plants.International journal of molecular sciences · 2024Article
- EnhancingPlants (Basel, Switzerland) · 2024Article
- Transcriptomic Profiling of Tomato Leaves Identifies Novel Transcription Factors Responding to Dehydration Stress.International journal of molecular sciences · 2023Article
- Melatonin and Abiotic Stress Tolerance in Crop Plants.International journal of molecular sciences · 2023Review
- Mediterranean Tomato Landraces Exhibit Genotype-Specific Transcriptomic Responses to Water Stress.Physiologia plantarumArticle
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Drought stress seriously affects tomato growth, yield and quality. Previous reports have pointed out that melatonin (MT) can alleviate drought stress damage to tomato. To better understand the possible physiological and molecular mechanisms, chlorophyll fluorescence parameters and leaf transcriptome profiles were analyzed in the "Micro Tom" tomato cultivar with or without melatonin irrigation under normal and drought conditions. Polyethylene glycol 6000 (PEG6000) simulated continuous drought treatment reduced plant height, but melatonin treatment improved plant growth rate. Physiological parameter measurements revealed that the drought-induced decreases in maximum efficiency of photosystem II (PSII) photochemistry, the effective quantum yield of PSII, electron transfer rate, and photochemical quenching value caused by PEG6000 treatment were alleviated by melatonin treatment, which suggests a protective effect of melatonin on PSII. Comparative transcriptome analysis identified 447, 3982, 4526 and 3258 differentially expressed genes (DEGs) in the comparative groups plus-melatonin vs. minus-melatonin (no drought), drought vs. no drought (minus-melatonin), drought vs. no drought (melatonin) and plus-melatonin vs. minus-melatonin (drought), respectively. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analysis revealed that DEGs in the four comparative groups were involved in multiple metabolic processes and closely related to hormone signal transduction and transcription factors. Transcriptome data revealed that melatonin changed the expression pattern of most hormone signal transduction related DEGs induced by drought, and improved plant drought resistance by down-regulating the expression of linoleic acid catabolic enzyme genes. These results provide new insights into a probable mechanism of the melatonin-induced protection of photosynthesis and enhancement of drought tolerance in tomato plants.
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