PreprintArticleVersion 1Preserved in Portico This version is not peer-reviewed
Abscisic Acid and Nitrogen Showed Coordinated Action on Antioxidant System and Osmotic Adjustment to Alleviate Salinity Inhibited Photosynthetic Potential in Brassica juncea L.
Version 1
: Received: 3 June 2021 / Approved: 8 June 2021 / Online: 8 June 2021 (13:47:56 CEST)
How to cite:
Majid, A.; Rather, B.A.; Masood, A.; Khan, N.A. Abscisic Acid and Nitrogen Showed Coordinated Action on Antioxidant System and Osmotic Adjustment to Alleviate Salinity Inhibited Photosynthetic Potential in Brassica juncea L.. Preprints2021, 2021060236. https://doi.org/10.20944/preprints202106.0236.v1.
Majid, A.; Rather, B.A.; Masood, A.; Khan, N.A. Abscisic Acid and Nitrogen Showed Coordinated Action on Antioxidant System and Osmotic Adjustment to Alleviate Salinity Inhibited Photosynthetic Potential in Brassica juncea L.. Preprints 2021, 2021060236. https://doi.org/10.20944/preprints202106.0236.v1.
Cite as:
Majid, A.; Rather, B.A.; Masood, A.; Khan, N.A. Abscisic Acid and Nitrogen Showed Coordinated Action on Antioxidant System and Osmotic Adjustment to Alleviate Salinity Inhibited Photosynthetic Potential in Brassica juncea L.. Preprints2021, 2021060236. https://doi.org/10.20944/preprints202106.0236.v1.
Majid, A.; Rather, B.A.; Masood, A.; Khan, N.A. Abscisic Acid and Nitrogen Showed Coordinated Action on Antioxidant System and Osmotic Adjustment to Alleviate Salinity Inhibited Photosynthetic Potential in Brassica juncea L.. Preprints 2021, 2021060236. https://doi.org/10.20944/preprints202106.0236.v1.
Abstract
The present study assessed the effect of abscisic acid (ABA; 25 µM) and/or nitrogen (N; 10 mM) in minimization of salinity (NaCl; 100mM)-impact on growth, photosynthetic efficiency, Rubisco activity, nitrogen and sulfur assimilation, oxidative stress (H2O2), lipid peroxidation measured as thiobarbituric acid reactive substances, (TBARS), osmolyte (Proline) content, and the activity of antioxidant enzymes (superoxide dismutase, SOD glutathione reductase, GR; ascorbate peroxidase, APX) in cultivar RH0-749 of Brassica juncea L. NaCl stress caused significant elevations in H2O2 and TBARS, and differentially modulated proline content, the activity of antioxidant enzymes, and impaired growth and photosynthetic functions. Exogenously applied 25 µM ABA negatively affected plant growth and photosynthesis in B. juncea without NaCl. In contrast, exogenously applied 25 µM ABA and 10 mM N, alone or in combination minimized oxidative stress, and maintained a fine-tuning between proline content and the activity of antioxidant enzymes, and thereby improved plant growth and photosynthetic functions in NaCl exposed B. juncea.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
