Modulation of antioxidant defense and PSII components by exogenously applied acetate mitigates salinity stress in Avena sativa

Modulation of antioxidant defense and PSII components by exogenously applied acetate mitigates salinity stress in Avena sativa

Salinity stress has detrimental effects on various aspects of plant development. However, our understanding of strategies to mitigate these effects in crop plants remains limited. Recent research has shed light on the potential of sodium acetate as a mitigating component against salinity stress in s...

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Published in:Scientific reports Vol. 14; no. 1; p. 620
Main Authors: Kappachery, Sajeesh, AlHosani, Mohamed, Khan, Tanveer Alam, AlKharoossi, Sara Nouh, AlMansoori, Nemah, AlShehhi, Sara Ali Saeed, AlMansoori, Hamda, AlKarbi, Maha, Sasi, Shina, Karumannil, Sameera, Elangovan, Sampath Kumar, Shah, Iltaf, Gururani, Mayank Anand
Format: Journal Article
Language:English
Published: London Nature Publishing Group UK 05-01-2024
Nature Publishing Group
Nature Portfolio
Subjects:
631/449
631/449/1734
631/449/1736
631/449/2661
Acetic acid
Antioxidants
Avena sativa
Carotenoids
Chlorophyll
Gene expression
Humanities and Social Sciences
multidisciplinary
Photosynthesis
Photosystem II
Plant growth
Plant morphology
Plant species
Salinity
Salinity effects
Science
Science (multidisciplinary)
Side effects
Sodium
Sodium acetate
Sodium chloride
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Summary:Salinity stress has detrimental effects on various aspects of plant development. However, our understanding of strategies to mitigate these effects in crop plants remains limited. Recent research has shed light on the potential of sodium acetate as a mitigating component against salinity stress in several plant species. Here, we show the role of acetate sodium in counteracting the adverse effects on oat ( Avena sativa ) plants subjected to NaCl-induced salinity stress, including its impact on plant morphology, photosynthetic parameters, and gene expression related to photosynthesis and antioxidant capacity, ultimately leading to osmoprotection. The five-week experiment involved subjecting oat plants to four different conditions: water, salt (NaCl), sodium acetate, and a combination of salt and sodium acetate. The presence of NaCl significantly inhibited plant growth and root elongation, disrupted chlorophylls and carotenoids content, impaired chlorophyll fluorescence, and down-regulated genes associated with the plant antioxidant defense system. Furthermore, our findings reveal that when stressed plants were treated with sodium acetate, it partially reversed these adverse effects across all analyzed parameters. This reversal was particularly evident in the increased content of proline, thereby ensuring osmoprotection for oat plants, even under stressful conditions. These results provide compelling evidence regarding the positive impact of sodium acetate on various plant development parameters, with a particular focus on the enhancement of photosynthetic activity.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-024-51302-5