Exogenous Proline and Glycine Betaine Mediated Upregulation of Antioxidant Defense and Glyoxalase Systems Provides Better Protection against Salt-Induced Oxidative Stress in Two Rice (Oryza sativa L.) Varieties
Joint Authors
Hasanuzzaman, Mirza
Rahman, Anisur
Nahar, Kamrun
Hasanuzzaman, Md.
Alam, Md. Mahabub
Fujita, Masayuki
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-03
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
The present study investigates the roles of exogenous proline (Pro, 5 mM) and glycine betaine (GB, 5 mM) in improving salt stress tolerance in salt sensitive (BRRI dhan49) and salt tolerant (BRRI dhan54) rice (Oryza sativa L.) varieties.
Salt stresses (150 and 300 mM NaCl for 48 h) significantly reduced leaf relative water (RWC) and chlorophyll (chl) content and increased endogenous Pro and increased lipid peroxidation and H2O2 levels.
Ascorbate (AsA), glutathione (GSH) and GSH/GSSG, ascorbate peroxidae (APX), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR), glutathione reductase (GR), glutathione peroxidase (GPX), catalase (CAT), and glyoxalase I (Gly I) activities were reduced in sensitive variety and these were increased in tolerant variety due to salt stress.
The glyoxalase II (Gly II), glutathione S-transferase (GST), and superoxide dismutase (SOD) activities were increased in both cultivars by salt stress.
Exogenous Pro and GB application with salt stress improved physiological parameters and reduced oxidative damage in both cultivars where BRRI dhan54 showed better tolerance.
The result suggests that exogenous application of Pro and GB increased rice seedlings’ tolerance to salt-induced oxidative damage by upregulating their antioxidant defense system where these protectants rendered better performance to BRRI dhan54 and Pro can be considered as better protectant than GB.
American Psychological Association (APA)
Hasanuzzaman, Mirza& Alam, Md. Mahabub& Rahman, Anisur& Hasanuzzaman, Md.& Nahar, Kamrun& Fujita, Masayuki. 2014. Exogenous Proline and Glycine Betaine Mediated Upregulation of Antioxidant Defense and Glyoxalase Systems Provides Better Protection against Salt-Induced Oxidative Stress in Two Rice (Oryza sativa L.) Varieties. BioMed Research International،Vol. 2014, no. 2014, pp.1-17.
https://search.emarefa.net/detail/BIM-496323
Modern Language Association (MLA)
Hasanuzzaman, Mirza…[et al.]. Exogenous Proline and Glycine Betaine Mediated Upregulation of Antioxidant Defense and Glyoxalase Systems Provides Better Protection against Salt-Induced Oxidative Stress in Two Rice (Oryza sativa L.) Varieties. BioMed Research International No. 2014 (2014), pp.1-17.
https://search.emarefa.net/detail/BIM-496323
American Medical Association (AMA)
Hasanuzzaman, Mirza& Alam, Md. Mahabub& Rahman, Anisur& Hasanuzzaman, Md.& Nahar, Kamrun& Fujita, Masayuki. Exogenous Proline and Glycine Betaine Mediated Upregulation of Antioxidant Defense and Glyoxalase Systems Provides Better Protection against Salt-Induced Oxidative Stress in Two Rice (Oryza sativa L.) Varieties. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-17.
https://search.emarefa.net/detail/BIM-496323
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-496323