ArticleFrontiers in plant science2016
Beneficial Roles of Melatonin on Redox Regulation of Photosynthetic Electron Transport and Synthesis of D1 Protein in Tomato Seedlings under Salt Stress.
Article in Frontiers in plant science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
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Who cites it
45 citing papers in PubMed, 163 citations in OpenAlex.
- Article
- Exogenous melatonin enhances the tolerance of ground-cover Chrysanthemum morifolium Ramat. to cadmium by improving photosynthetic capacity and reactive oxygen species scavenging.Plant cell reports · 2026Article
- The melatonin improves the growth indices, photosynthetic performance, and essential oil content of Thymus daenensis L. under salt stress.BMC plant biology · 2026Article
- Exogenous melatonin on photosynthesis and physiological characteristics in maize under drought stress.BMC plant biology · 2026Article
- Article
- The potential of melatonin in the mitigation of adverse effects of salt stress in basil (Ocimum basilicum L.) plants.BMC plant biology · 2025Article
- Chloroplast acetyltransferase GNAT2 acts as a redox-regulated switch for state transitions in tomato.Molecular horticulture · 2025Article
- Mining genetic loci and candidate genes related to salt tolerance traits in soybean.Scientific reports · 2025Article
- Review
- Changes of Photosynthetic Parameters in Melatonin-Treated Wheat Subjected to Drought.Plants (Basel, Switzerland) · 2024Article
- Effects of foliar spraying with melatonin and chitosan Nano-encapsulated melatonin on tomato (Lycopersicon esculentum L. cv. Falcato) plants under salinity stress.BMC plant biology · 2024Article
- Melatonin Modulates Tomato Root Morphology by Regulating Key Genes and Endogenous Hormones.Plants (Basel, Switzerland) · 2024Article
- Exogenous calcium-alleviating effect on sodium salt-induced phytotoxicity associated with changes in photosynthetic characteristics of wheat seedlings.Photosynthetica · 2024Article
- Melatonin-Mediated Enhancement of Photosynthetic Capacity and Photoprotection Improves Salt Tolerance in Wheat.Plants (Basel, Switzerland) · 2023Article
- Impact of Exogenous Melatonin Application on Photosynthetic Machinery under Abiotic Stress Conditions.Plants (Basel, Switzerland) · 2023Review
- Transcriptome Mechanisms of Tomato Seedlings Induced by Low-Red to Far-Red Light Ratio under Calcium Nitrate Stress.International journal of molecular sciences · 2023Article
- Melatonin-mediated development and abiotic stress tolerance in plants.Frontiers in plant science · 2023Review
- Melatonin Affects the Photosynthetic Performance of Pepper (Antioxidants (Basel, Switzerland) · 2022Article
- The role of melatonin in tomato stress response, growth and development.Plant cell reports · 2022Review
- Transcriptome Analysis Reveals Molecular Mechanisms under Salt Stress in Leaves of Foxtail Millet (Plants (Basel, Switzerland) · 2022Article
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Melatonin is important in the protection of plants suffering various forms of abiotic stress. The molecular mechanisms underlying the melatonin-mediated protection of their photosynthetic machinery are not completely resolved. This study investigates the effects of exogenous melatonin applications on salt-induced damage to the light reaction components of the photosynthetic machinery of tomato seedlings. The results showed that melatonin pretreatments can help maintain growth and net photosynthetic rate (PN) under salt stress conditions. Pretreatment with melatonin increased the effective quantum yield of photosystem II (ΦPSII), the photochemical quenching coefficient (qP) and the proportion of PSII centers that are "open" (qL) under saline conditions. In this way, damage to the photosynthetic electron transport chain (PET) in photosystem II (PSII) was mitigated. In addition, melatonin pretreatment facilitated the repair of PSII by maintaining the availability of D1 protein that was otherwise reduced by salinity. The ROS levels and the gene expressions of the chloroplast TRXs and PRXs were also investigated. Salt stress resulted in increased levels of reactive oxygen species (ROS), which were mitigated by melatonin. In tomato leaves under salt stress, the expressions of PRXs and TRXf declined but the expressions of TRXm1/4 and TRXm2 increased. Melatonin pretreatment promoted the expression of TRXf and the abundances of TRXf and TRXm gene products but had no effects on the expressions of PRXs. In summary, melatonin improves the photosynthetic activities of tomato seedlings under salt stress. The mechanism could be that: (1) Melatonin controls ROS levels and prevents damaging elevations of ROS caused by salt stress. (2) Melatonin facilitates the recovery of PET and D1 protein synthesis, thus enhancing the tolerance of photosynthetic activities to salinity. (3) Melatonin induces the expression of TRXf and regulates the abundance of TRXf and TRXm gene products, which may facilitate repair of the light reaction parts of the photosynthetic machinery.
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