Antioxidative Response of Various Cultivars of Sorghum (Sorghum bicolor L.) to Drought Stress
The present study was conducted with the aim to identify the response of antioxidant enzyme activities in seedlings of different sorghum cultivars under mannitol stress. Seven-day old seedlings were subjected to 100-500 mM mannitol stress which resulted in the decreases in shoot/root length and rela...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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"Vikol publishing" ST Kolesnichenko V.V.
2013-08-01
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| Series: | Journal of Stress Physiology & Biochemistry |
| Subjects: | |
| Online Access: | http://www.jspb.ru/issues/2013/N3/JSPB_2013_3_139-151.pdf |
| _version_ | 1818146260877574144 |
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| author | Gurpreet Singh Nidhi Sharma |
| author_facet | Gurpreet Singh Nidhi Sharma |
| author_sort | Gurpreet Singh |
| collection | DOAJ |
| description | The present study was conducted with the aim to identify the response of antioxidant enzyme activities in seedlings of different sorghum cultivars under mannitol stress. Seven-day old seedlings were subjected to 100-500 mM mannitol stress which resulted in the decreases in shoot/root length and relative water content thus indicating the primary response to these tissues at phenotypic level. The level of lipid peroxidation as well as the specific activity of antioxidant enzymes such as peroxidase, catalase and superoxide dismutase increased at higher conc. except at 200 mM conditions. The level of catalase and peroxidase decreased at 500 mM conc. In the two different cultivars whereas the activity of superoxide dismutase consistently increased in response to the mannitol stress. Our data demonstrate that drought responsiveness tolerance in sorghum cultivars during germination is associated with enhanced activity of antioxidant enzymes. |
| first_indexed | 2024-12-11T12:16:32Z |
| format | Article |
| id | doaj.art-f4f8b643319a4094b8095d1d1dc0fa0b |
| institution | Directory Open Access Journal |
| issn | 1997-0838 |
| language | English |
| last_indexed | 2024-12-11T12:16:32Z |
| publishDate | 2013-08-01 |
| publisher | "Vikol publishing" ST Kolesnichenko V.V. |
| record_format | Article |
| series | Journal of Stress Physiology & Biochemistry |
| spelling | doaj.art-f4f8b643319a4094b8095d1d1dc0fa0b2022-12-22T01:07:38Zeng"Vikol publishing" ST Kolesnichenko V.V.Journal of Stress Physiology & Biochemistry1997-08382013-08-0193139151Antioxidative Response of Various Cultivars of Sorghum (Sorghum bicolor L.) to Drought StressGurpreet SinghNidhi SharmaThe present study was conducted with the aim to identify the response of antioxidant enzyme activities in seedlings of different sorghum cultivars under mannitol stress. Seven-day old seedlings were subjected to 100-500 mM mannitol stress which resulted in the decreases in shoot/root length and relative water content thus indicating the primary response to these tissues at phenotypic level. The level of lipid peroxidation as well as the specific activity of antioxidant enzymes such as peroxidase, catalase and superoxide dismutase increased at higher conc. except at 200 mM conditions. The level of catalase and peroxidase decreased at 500 mM conc. In the two different cultivars whereas the activity of superoxide dismutase consistently increased in response to the mannitol stress. Our data demonstrate that drought responsiveness tolerance in sorghum cultivars during germination is associated with enhanced activity of antioxidant enzymes.http://www.jspb.ru/issues/2013/N3/JSPB_2013_3_139-151.pdfCatalasedrought stressperoxidaserelative water contentsuperoxide dismutasesorghum bicolor |
| spellingShingle | Gurpreet Singh Nidhi Sharma Antioxidative Response of Various Cultivars of Sorghum (Sorghum bicolor L.) to Drought Stress Journal of Stress Physiology & Biochemistry Catalase drought stress peroxidase relative water content superoxide dismutase sorghum bicolor |
| title | Antioxidative Response of Various Cultivars of Sorghum (Sorghum bicolor L.) to Drought Stress |
| title_full | Antioxidative Response of Various Cultivars of Sorghum (Sorghum bicolor L.) to Drought Stress |
| title_fullStr | Antioxidative Response of Various Cultivars of Sorghum (Sorghum bicolor L.) to Drought Stress |
| title_full_unstemmed | Antioxidative Response of Various Cultivars of Sorghum (Sorghum bicolor L.) to Drought Stress |
| title_short | Antioxidative Response of Various Cultivars of Sorghum (Sorghum bicolor L.) to Drought Stress |
| title_sort | antioxidative response of various cultivars of sorghum sorghum bicolor l to drought stress |
| topic | Catalase drought stress peroxidase relative water content superoxide dismutase sorghum bicolor |
| url | http://www.jspb.ru/issues/2013/N3/JSPB_2013_3_139-151.pdf |
| work_keys_str_mv | AT gurpreetsingh antioxidativeresponseofvariouscultivarsofsorghumsorghumbicolorltodroughtstress AT nidhisharma antioxidativeresponseofvariouscultivarsofsorghumsorghumbicolorltodroughtstress |