Article detail · 2013
Effect of drought stress on oxidative damage and antioxidant enzyme activity in melon seedlings
Journal
Turkish Journal of Biology- Year
- 2013
- Type
- article
Data source split
- YÖKSİS YÖKSİS article record
- YÖKSİS venue Turkish Journal of Biology
- OpenAlex OpenAlex enrichment (abstract, citations, topics)
Abstract
OpenAlex · English
Drought stress is one of the most serious environmental limitations affecting the growth and productivity of plants. In the current study, oxidative damage and antioxidant responses under polyethylene glycol (PEG)-induced osmotic stress were compared in 2 melon cultivars, Kırkağaç and Galia. Melon seedlings were subjected to PEG-6000 solutions of 2 different osmotic potentials, -0.2 MPa and -0.4 MPa. Various physiological parameters, malondialdehyde (MDA), proline content, and antioxidant enzymes including catalase (CAT), ascorbate peroxidase (APX), and glutathione reductase (GR) were measured. A reduction in fresh and dry weights of shoot and root tissues was observed. Significant proline accumulation was detected with increasing osmotic potential for both cultivars. A significant rise in MDA was detected in Kırkağaç at -0.4 MPa osmotic potential. In Galia hydrogen peroxide (H_2O_2) content increased significantly as PEG concentration increased. CAT showed significantly increased activity only at -0.4 MPa osmotic potential in both cultivars. PEG-induced osmotic stress altered GR activity in both cultivars. These results suggest that (i) Galia is more tolerant than Kırkağaç, and (ii) drought tolerance in both cultivars might be closely related to an increase in capacity for antioxidant enzyme activity and the osmoprotective function of proline. Comparing these responses will help to identify drought tolerance mechanisms in melon cultivars.
Topics
Citations
OpenAlex cited_by_count. Not a WoS or Scopus citation count; those sources have no separate column here.
71 citations
OpenAlex cited_by_count (cache / database)
25 publications in the local catalog that cite this work (OpenAlex reference match; not the full global list).
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- Genome wide characterization and expression analysis of common bean bHLH transcription factors in response to excess salt concentration 2016
- Genome wide characterization and expression analysis of common bean bHLH transcription factors in response to excess salt concentration 2016
- Proline and Antioxidant Enzyme Activities in Some Strawberry Cultivars under Drought and Recovery 2018
- Alleviation role of exogenous cadaverine on cell cycle, endogenous polyamines amounts and biochemical enzyme changes in barley seedlings under drought stress 2023
- Alleviation Role of Exogenous Cadaverine on Cell Cycle, Endogenous Polyamines Amounts and Biochemical Enzyme Changes in Barley Seedlings under Drought Stress 2023
- Enhanced drought and salt stress tolerance in Arabidopsis via ectopic expression of the PvMLP19 gene 2025
- Enhanced drought and salt stress tolerance in Arabidopsis via ectopic expression of the PvMLP19 gene 2025
- The effect of exogenous spermine application on some biochemical and molecular properties in Hordeum vulgare l. under both normal and drought stress 2022
- The effect of exogenous spermine application on some biochemichal and molecular properties in Hordeum vulgare L. under both normal and drought stress 2022