Assessment of waterlogging-induced changes in enzymatic antioxidants and carbohydrate metabolism in peanuts genotypes.

Autor:	Sharma S; Plant Bioenergetics and Biotechnology Laboratory, MLS University, Udaipur, Rajasthan, India.; Department of Botany, Deshbandhu College, University of Delhi, Delhi, India., Bhatt U; Plant Bioenergetics and Biotechnology Laboratory, MLS University, Udaipur, Rajasthan, India., Shah G; Plant Bioenergetics and Biotechnology Laboratory, MLS University, Udaipur, Rajasthan, India., Soni V; Plant Bioenergetics and Biotechnology Laboratory, MLS University, Udaipur, Rajasthan, India.
Jazyk:	angličtina
Zdroj:	Biochemistry and biophysics reports [Biochem Biophys Rep] 2024 Jul 29; Vol. 39, pp. 101794. Date of Electronic Publication: 2024 Jul 29 (Print Publication: 2024).
DOI:	10.1016/j.bbrep.2024.101794
Abstrakt:	Soil flooding, manifesting as submergence or waterlogging stress, significantly impacts plant species composition and agricultural productivity, particularly in regions with low rainfall. This study investigates the biochemical responses of two peanut ( Arachis hypogaea L.) genotypes, DH-86 and GJG-32, under waterlogging stress. The experiment involved in-vivo pot trials where peanut plants were subjected to continuous waterlogging for 12 days at the flowering stage. Biochemical analyses of leaves conducted and revealed significant alterations in enzyme activities and metabolite concentrations. Key findings include variations in superoxide dismutase (SOD), catalase (CAT), guaiacol peroxidase (GPOD), α-amylase, invertase, acid phosphomonoesterase activities, and changes in starch, proline, reducing sugars, and chlorophyll content. SOD, CAT, and GPOD activities exhibited differential responses between genotypes, highlighting DH-86's quicker recovery post-waterlogging. Notably, DH-86 demonstrated higher resilience, reflected in its rapid normalization of biochemical parameters, while GJG-32 showed prolonged stress effects. These findings underscore the importance of antioxidative enzyme systems in mitigating oxidative damage induced by waterlogging. This study enhances our understanding of the biochemical adaptations of peanut genotypes to waterlogging stress, offering valuable insights for breeding programs focused on improving flood tolerance in crops. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2024 Published by Elsevier B.V.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu