Melatonin Improves Drought Stress Tolerance of Tomato by Modulating Plant Growth, Root Architecture, Photosynthesis, and Antioxidant Defense System
Hainan University · Bahauddin Zakariya University · +6 more institutions
Abstract
Tomato is an important vegetable that is highly sensitive to drought (DR) stress which impairs the development of tomato seedlings. Recently, melatonin (ME) has emerged as a nontoxic, regulatory biomolecule that regulates plant growth and enhances the DR tolerance mechanism in plants. The present study was conducted to examine the defensive role of ME in photosynthesis, root architecture, and the antioxidant enzymes’ activities of tomato seedlings subjected to DR stress. Our results indicated that DR stress strongly suppressed growth and biomass production, inhibited photosynthesis, negatively affected root morphology, and reduced photosynthetic pigments in tomato seedlings. Per contra, soluble sugars,…
Citation impact
- FWCI
- 61.94
- Percentile
- 100%
- References
- 64
Authors
14Topics & keywords
- APX
- Glutathione reductase
- Antioxidant
- Superoxide dismutase
- Photosynthesis
- Glutathione
- Proline
- Catalase