TY - JOUR
T1 - Exogenous Melatonin Counteracts Salinity and Cadmium Stress via Photosynthetic Machinery and Antioxidant Modulation in Solanum lycopersicum L
AU - Bhardwaj, Kritika
AU - Raina, Meenakshi
AU - Sanfratello, Giovanni Marco
AU - Pandey, Prashasti
AU - Singh, Ankita
AU - Rajwanshi, Ravi
AU - Negi, Neelam Prabha
AU - Rustagi, Anjana
AU - Khushboo, null
AU - Kumar, Deepak
N1 - Funding Information:
DK is thankful to the Science and Engineering Research Board (Grant No- EEQ/2016/000487 and EEQ/2021/000593) and University Grants Commission (UGC) Start-Up Research Grant [No.F.30-352/2017(BSR); FD Diary No.6668] India, for providing financial support to the laboratory. DK acknowledges Department of Bioscience and Biotechnology, Banasthali University for providing the necessary facilities. DK also acknowledges Institute of Eminence Seed Grant (Dev. scheme No. 6031 (B), Banaras Hindu University, Varanasi for providing the financial support to the laboratory and Centre of Advanced study in Botany, Institute of Science, Banaras Hindu University, for providing necessary facilities and infrastructural support.
Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2023/10/22
Y1 - 2023/10/22
N2 - Being sessile, plants’ exposure to various environmental stresses during their life cycle is inevitable which can affect their yield and productivity. This study investigates the protective effect of exogenous application of melatonin on 30-day-old tomato plants under NaCl and cadmium stress treatments. Plant growth, photosynthetic pigment, and antioxidant enzymes of plants exposed to NaCl, cadmium (Cd), and NaCl + Cd stress and melatonin treatment on them were analysed. The plants under NaCl- and Cd-induced stress produced an increased amount of ROS and lipid peroxidation, which were significantly reduced upon melatonin application. The maximum quantum energy (FV/FM) and performance index (PIABS) significantly improved in melatonin-treated plants under stress conditions. Redox homeostasis was maintained with a significant increase in superoxide dismutase, catalase, ascorbate peroxidase, and glutathione reductase. This study suggests that exogenous melatonin improves plants’ ability to overcome the combination stress caused by NaCl and Cd by increasing overall photosynthetic capacity and modulating redox balance.
AB - Being sessile, plants’ exposure to various environmental stresses during their life cycle is inevitable which can affect their yield and productivity. This study investigates the protective effect of exogenous application of melatonin on 30-day-old tomato plants under NaCl and cadmium stress treatments. Plant growth, photosynthetic pigment, and antioxidant enzymes of plants exposed to NaCl, cadmium (Cd), and NaCl + Cd stress and melatonin treatment on them were analysed. The plants under NaCl- and Cd-induced stress produced an increased amount of ROS and lipid peroxidation, which were significantly reduced upon melatonin application. The maximum quantum energy (FV/FM) and performance index (PIABS) significantly improved in melatonin-treated plants under stress conditions. Redox homeostasis was maintained with a significant increase in superoxide dismutase, catalase, ascorbate peroxidase, and glutathione reductase. This study suggests that exogenous melatonin improves plants’ ability to overcome the combination stress caused by NaCl and Cd by increasing overall photosynthetic capacity and modulating redox balance.
KW - Cadmium
KW - Melatonin
KW - Photosynthetic capacity
KW - Reactive oxygen species
KW - Salinity stress
KW - Tomato
UR - http://www.scopus.com/inward/record.url?scp=85140766411&partnerID=8YFLogxK
U2 - 10.1007/s00344-022-10843-7
DO - 10.1007/s00344-022-10843-7
M3 - Article
AN - SCOPUS:85140766411
SN - 0721-7595
VL - 42
SP - 6332
EP - 6348
JO - Journal of Plant Growth Regulation
JF - Journal of Plant Growth Regulation
IS - 10
ER -