Effect of abscisic acid on biochemical constituents, enzymatic and non enzymatic antioxidant status of lettuce (Lactuca sativa L.) under varied irrigation regimes
Economically important vegetable crop lettuce (Lactuca sativa L.) of family Asteraceae was selected for the present investigation. It is being cultivated in UAE due to its commercial importance. In lettuce cultivation, the major problem is the requirement of large quantities of irrigation water. The...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2015-12-01
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| Series: | Cogent Food & Agriculture |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/23311932.2015.1080888 |
| _version_ | 1831520694210396160 |
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| author | Mohamed A. Al Muhairi Abdul J. Cheruth Shyam S. Kurup Gabriel A. Rabert Mohammad S. Al-Yafei |
| author_facet | Mohamed A. Al Muhairi Abdul J. Cheruth Shyam S. Kurup Gabriel A. Rabert Mohammad S. Al-Yafei |
| author_sort | Mohamed A. Al Muhairi |
| collection | DOAJ |
| description | Economically important vegetable crop lettuce (Lactuca sativa L.) of family Asteraceae was selected for the present investigation. It is being cultivated in UAE due to its commercial importance. In lettuce cultivation, the major problem is the requirement of large quantities of irrigation water. The present study was aimed to reduce the water consumption of lettuce cultivation; for that, a varied irrigation regime was used with the application of abscisic acid (ABA). The parameters studied were biochemical constituents, antioxidant potential and antioxidant enzymes’ activities in lettuce plants under drought stress and its response to ABA under stress. Drought stress caused an increase in the biochemical constituents like proline and amino acid contents when compared with control and also increased under individual ABA treatments and treatments under drought stress. The non-enzymatic antioxidant molecules like ascorbate and α-tocopherol showed significant increase under drought condition in lettuce. ABA slightly reduced these contents. The antioxidant enzymes like superoxide dismutase, catalase and peroxidase showed significant increase under drought condition and ABA caused significant enhancement in these antioxidant enzymes under drought stress and also in unstressed conditions, thereby protecting the plants from the deleterious effects of drought stress. From the results of this investigation, it can be concluded that ABA in 10 mg g−1 can be used as a potential tool to minimise the drought stress effects in lettuce cultivation. |
| first_indexed | 2024-12-13T17:36:32Z |
| format | Article |
| id | doaj.art-281729fc851344b6b83abfb9b110dcc4 |
| institution | Directory Open Access Journal |
| issn | 2331-1932 |
| language | English |
| last_indexed | 2024-12-13T17:36:32Z |
| publishDate | 2015-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Cogent Food & Agriculture |
| spelling | doaj.art-281729fc851344b6b83abfb9b110dcc42022-12-21T23:36:53ZengTaylor & Francis GroupCogent Food & Agriculture2331-19322015-12-011110.1080/23311932.2015.10808881080888Effect of abscisic acid on biochemical constituents, enzymatic and non enzymatic antioxidant status of lettuce (Lactuca sativa L.) under varied irrigation regimesMohamed A. Al Muhairi0Abdul J. Cheruth1Shyam S. Kurup2Gabriel A. Rabert3Mohammad S. Al-Yafei4College of Food and Agriculture, United Arab Emirates UniversityCollege of Food and Agriculture, United Arab Emirates UniversityCollege of Food and Agriculture, United Arab Emirates UniversityCollege of Food and Agriculture, United Arab Emirates UniversityCollege of Food and Agriculture, United Arab Emirates UniversityEconomically important vegetable crop lettuce (Lactuca sativa L.) of family Asteraceae was selected for the present investigation. It is being cultivated in UAE due to its commercial importance. In lettuce cultivation, the major problem is the requirement of large quantities of irrigation water. The present study was aimed to reduce the water consumption of lettuce cultivation; for that, a varied irrigation regime was used with the application of abscisic acid (ABA). The parameters studied were biochemical constituents, antioxidant potential and antioxidant enzymes’ activities in lettuce plants under drought stress and its response to ABA under stress. Drought stress caused an increase in the biochemical constituents like proline and amino acid contents when compared with control and also increased under individual ABA treatments and treatments under drought stress. The non-enzymatic antioxidant molecules like ascorbate and α-tocopherol showed significant increase under drought condition in lettuce. ABA slightly reduced these contents. The antioxidant enzymes like superoxide dismutase, catalase and peroxidase showed significant increase under drought condition and ABA caused significant enhancement in these antioxidant enzymes under drought stress and also in unstressed conditions, thereby protecting the plants from the deleterious effects of drought stress. From the results of this investigation, it can be concluded that ABA in 10 mg g−1 can be used as a potential tool to minimise the drought stress effects in lettuce cultivation.http://dx.doi.org/10.1080/23311932.2015.1080888lettucedroughtmorphologypigmentsantioxidant contentsantioxidant activity |
| spellingShingle | Mohamed A. Al Muhairi Abdul J. Cheruth Shyam S. Kurup Gabriel A. Rabert Mohammad S. Al-Yafei Effect of abscisic acid on biochemical constituents, enzymatic and non enzymatic antioxidant status of lettuce (Lactuca sativa L.) under varied irrigation regimes Cogent Food & Agriculture lettuce drought morphology pigments antioxidant contents antioxidant activity |
| title | Effect of abscisic acid on biochemical constituents, enzymatic and non enzymatic antioxidant status of lettuce (Lactuca sativa L.) under varied irrigation regimes |
| title_full | Effect of abscisic acid on biochemical constituents, enzymatic and non enzymatic antioxidant status of lettuce (Lactuca sativa L.) under varied irrigation regimes |
| title_fullStr | Effect of abscisic acid on biochemical constituents, enzymatic and non enzymatic antioxidant status of lettuce (Lactuca sativa L.) under varied irrigation regimes |
| title_full_unstemmed | Effect of abscisic acid on biochemical constituents, enzymatic and non enzymatic antioxidant status of lettuce (Lactuca sativa L.) under varied irrigation regimes |
| title_short | Effect of abscisic acid on biochemical constituents, enzymatic and non enzymatic antioxidant status of lettuce (Lactuca sativa L.) under varied irrigation regimes |
| title_sort | effect of abscisic acid on biochemical constituents enzymatic and non enzymatic antioxidant status of lettuce lactuca sativa l under varied irrigation regimes |
| topic | lettuce drought morphology pigments antioxidant contents antioxidant activity |
| url | http://dx.doi.org/10.1080/23311932.2015.1080888 |
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