Volume 4, Issue 2 (9-2017)                   NBR 2017, 4(2): 155-165 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Chaparzadeh N, Saeedifar R, Zarandi-Miandoab L, Pazhang M. Effect of nitric oxide on antioxidative responses under salinity conditions in Zygophyllum fabago L. (Zygophyllaceae) . NBR 2017; 4 (2) :155-165
URL: http://nbr.khu.ac.ir/article-1-2947-en.html
Azarbaijan Shahid Madani University
Abstract:   (5412 Views)
In recent years, the involvement of nitric oxide (NO) in numerous physiological processes, particularly the mitigation of stress-induced negative effects on plants, has been clarified. Under salinity conditions, plants are subjected to a secondary oxidative stress.  The present work was designed to examine the exogenous application of nitric oxide (NO), in the form of its donor sodium nitroprusside (SNP), in mitigating the deleterious effects of salinity on Zygoph-yllum fabago L. plants. SNP (200 µM) was applied to plants growing medium under saline (200 and 400 mM NaCl) and non-saline conditions. Growth, oxidative stress markers [cell membrane stability index (MSI) and H2O2 conc-entration], antioxidant enzymes activities [peroxidase (POX, EC and catalase (CAT, EC], as well as the contents of some antioxidant compounds (flavonoids and carotenoids) were determined. Salinity lowered the shoot and root dry weights, while it enhanced peroxidase and catalase activities. High salinity increased H2O2; however, it de-creased the carotenoids content of leaves. Exogenous NO enhanced the growth, MSI, flavonoids and carotenoids co-ntents of salinized plants. In salinity plus SNP treated plants, H2O2 concentration and the activities of the examined en-zymes were reduced. Data suggest that a cooperative process is performed by the antioxidant systems in Syrian bean ca-per in order to cope with salinity. Also, the application of exogenous NO was found to be useful in the mitigation of salinity-induced oxidative stress in plants.
Full-Text [PDF 678 kb]   (1463 Downloads)    
Type of Study: Original Article | Subject: Plant Biology
Received: 2017/09/18 | Revised: 2017/09/20 | Accepted: 2017/09/18 | Published: 2017/09/18 | ePublished: 2017/09/18

Add your comments about this article : Your username or Email:

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Creative Commons Licence
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Nova Biologica Reperta

Designed & Developed by : Yektaweb