Effect of nitric oxide on antioxidative responses under salinity conditions in Zygophyllum fabago L. (Zygophyllaceae)
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...
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| Format: | Article |
| Language: | English |
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Kharazmi University
2017-09-01
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| Series: | یافتههای نوین در علوم زیستی |
| Subjects: | |
| Online Access: | http://nbr.khu.ac.ir/browse.php?a_code=A-10-81-64&slc_lang=en&sid=1 |
| _version_ | 1819088177811423232 |
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| author | Nader Chaparzadeh Roya Saeedifar Leila Zarandi-Miandoab Mohammad Pazhang |
| author_facet | Nader Chaparzadeh Roya Saeedifar Leila Zarandi-Miandoab Mohammad Pazhang |
| author_sort | Nader Chaparzadeh |
| collection | DOAJ |
| description | 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 1.11.1.7) and catalase (CAT, EC 1.11.1.6)], 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. |
| first_indexed | 2024-12-21T21:47:54Z |
| format | Article |
| id | doaj.art-415673749f1246d19ab3eee585e4b0ca |
| institution | Directory Open Access Journal |
| issn | 2423-6330 2476-7115 |
| language | English |
| last_indexed | 2024-12-21T21:47:54Z |
| publishDate | 2017-09-01 |
| publisher | Kharazmi University |
| record_format | Article |
| series | یافتههای نوین در علوم زیستی |
| spelling | doaj.art-415673749f1246d19ab3eee585e4b0ca2022-12-21T18:49:10ZengKharazmi Universityیافتههای نوین در علوم زیستی2423-63302476-71152017-09-0142155165Effect of nitric oxide on antioxidative responses under salinity conditions in Zygophyllum fabago L. (Zygophyllaceae)Nader Chaparzadeh0Roya Saeedifar1Leila Zarandi-Miandoab2Mohammad Pazhang3 Azarbaijan Shahid Madani University Azarbaijan Shahid Madani University Azarbaijan Shahid Madani University Azarbaijan Shahid Madani University 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 1.11.1.7) and catalase (CAT, EC 1.11.1.6)], 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.http://nbr.khu.ac.ir/browse.php?a_code=A-10-81-64&slc_lang=en&sid=1peroxidasehydrogen peroxidesodium nitroprussideNaCl |
| spellingShingle | Nader Chaparzadeh Roya Saeedifar Leila Zarandi-Miandoab Mohammad Pazhang Effect of nitric oxide on antioxidative responses under salinity conditions in Zygophyllum fabago L. (Zygophyllaceae) یافتههای نوین در علوم زیستی peroxidase hydrogen peroxide sodium nitroprusside NaCl |
| title | Effect of nitric oxide on antioxidative responses under salinity conditions in Zygophyllum fabago L. (Zygophyllaceae) |
| title_full | Effect of nitric oxide on antioxidative responses under salinity conditions in Zygophyllum fabago L. (Zygophyllaceae) |
| title_fullStr | Effect of nitric oxide on antioxidative responses under salinity conditions in Zygophyllum fabago L. (Zygophyllaceae) |
| title_full_unstemmed | Effect of nitric oxide on antioxidative responses under salinity conditions in Zygophyllum fabago L. (Zygophyllaceae) |
| title_short | Effect of nitric oxide on antioxidative responses under salinity conditions in Zygophyllum fabago L. (Zygophyllaceae) |
| title_sort | effect of nitric oxide on antioxidative responses under salinity conditions in zygophyllum fabago l zygophyllaceae |
| topic | peroxidase hydrogen peroxide sodium nitroprusside NaCl |
| url | http://nbr.khu.ac.ir/browse.php?a_code=A-10-81-64&slc_lang=en&sid=1 |
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