Unraveling Morphophysiological and Biochemical Responses of Triticum aestivum L. to Extreme pH: Coordinated Actions of Antioxidant Defense and Glyoxalase Systems
Soil pH, either low (acidity) or high (alkalinity), is one of the major constraints that affect many biochemical and biological processes within the cell. The present study was carried out to understand the oxidative damage and antioxidant defense in wheat (Triticum aestivum L. cv. BARI Gom-25) grow...
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MDPI AG
2019-01-01
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| Series: | Plants |
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| author | M. H. M. Borhannuddin Bhuyan Mirza Hasanuzzaman Jubayer Al Mahmud Md. Shahadat Hossain Tasnim Farha Bhuiyan Masayuki Fujita |
| author_facet | M. H. M. Borhannuddin Bhuyan Mirza Hasanuzzaman Jubayer Al Mahmud Md. Shahadat Hossain Tasnim Farha Bhuiyan Masayuki Fujita |
| author_sort | M. H. M. Borhannuddin Bhuyan |
| collection | DOAJ |
| description | Soil pH, either low (acidity) or high (alkalinity), is one of the major constraints that affect many biochemical and biological processes within the cell. The present study was carried out to understand the oxidative damage and antioxidant defense in wheat (Triticum aestivum L. cv. BARI Gom-25) grown under different pH regimes. Eight-day-old seedlings were exposed to growing media with different pH levels (4.0, 5.5, 7.0, and 8.5). Seedlings grown in pH 4.0 and in pH 8.5 showed reductions in biomass, water, and chlorophyll contents; whereas plants grown at pH 7.0 (neutral) exhibited a better performance. Extremely acidic (pH 4.0) and/or strongly alkaline (pH 8.5)-stress also increased oxidative damage in wheat by excess reactive oxygen species (ROS) generation and methylglyoxal (MG) production, which increased lipid peroxidation and disrupted the redox state. In contrary, the lowest oxidative damage was observed at a neutral condition, followed by a strong acidic condition (pH 5.5), which was mainly attributed to the better performance of the antioxidant defense and glyoxalase systems. Interestingly, seedlings grown at pH 5.5 showed a significant increase in morphophysiological attributes compared with extreme acidic (pH 4.0)- and strong alkaline (pH 8.5)-stress treatments, which indicates the tolerance of wheat to the acidic condition. |
| first_indexed | 2024-12-10T20:09:31Z |
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| institution | Directory Open Access Journal |
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| language | English |
| last_indexed | 2024-12-10T20:09:31Z |
| publishDate | 2019-01-01 |
| publisher | MDPI AG |
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| series | Plants |
| spelling | doaj.art-1dd87904d2b04fc5b4626d4e9e9b95b92022-12-22T01:35:18ZengMDPI AGPlants2223-77472019-01-01812410.3390/plants8010024plants8010024Unraveling Morphophysiological and Biochemical Responses of Triticum aestivum L. to Extreme pH: Coordinated Actions of Antioxidant Defense and Glyoxalase SystemsM. H. M. Borhannuddin Bhuyan0Mirza Hasanuzzaman1Jubayer Al Mahmud2Md. Shahadat Hossain3Tasnim Farha Bhuiyan4Masayuki Fujita5Laboratory of Plant Stress Response, Department of Applied Biological Sciences, Faculty of Agriculture, Kagawa University, Miki-cho, Kita-gun, Kagawa 761-0795, JapanDepartment of Agronomy, Sher-e-Bangla Agricultural University, Dhaka 1207, BangladeshDepartment of Agroforestry and Environmental Science, Sher-e-Bangla Agricultural University, Dhaka 1207, BangladeshLaboratory of Plant Stress Response, Department of Applied Biological Sciences, Faculty of Agriculture, Kagawa University, Miki-cho, Kita-gun, Kagawa 761-0795, JapanDepartment of Agricultural Botany, Sher-e-Bangla Agricultural University, Dhaka 1207, BangladeshLaboratory of Plant Stress Response, Department of Applied Biological Sciences, Faculty of Agriculture, Kagawa University, Miki-cho, Kita-gun, Kagawa 761-0795, JapanSoil pH, either low (acidity) or high (alkalinity), is one of the major constraints that affect many biochemical and biological processes within the cell. The present study was carried out to understand the oxidative damage and antioxidant defense in wheat (Triticum aestivum L. cv. BARI Gom-25) grown under different pH regimes. Eight-day-old seedlings were exposed to growing media with different pH levels (4.0, 5.5, 7.0, and 8.5). Seedlings grown in pH 4.0 and in pH 8.5 showed reductions in biomass, water, and chlorophyll contents; whereas plants grown at pH 7.0 (neutral) exhibited a better performance. Extremely acidic (pH 4.0) and/or strongly alkaline (pH 8.5)-stress also increased oxidative damage in wheat by excess reactive oxygen species (ROS) generation and methylglyoxal (MG) production, which increased lipid peroxidation and disrupted the redox state. In contrary, the lowest oxidative damage was observed at a neutral condition, followed by a strong acidic condition (pH 5.5), which was mainly attributed to the better performance of the antioxidant defense and glyoxalase systems. Interestingly, seedlings grown at pH 5.5 showed a significant increase in morphophysiological attributes compared with extreme acidic (pH 4.0)- and strong alkaline (pH 8.5)-stress treatments, which indicates the tolerance of wheat to the acidic condition.http://www.mdpi.com/2223-7747/8/1/24acidityalkalinityantioxidant defensemethylglyoxalphytotoxicityreactive oxygen species |
| spellingShingle | M. H. M. Borhannuddin Bhuyan Mirza Hasanuzzaman Jubayer Al Mahmud Md. Shahadat Hossain Tasnim Farha Bhuiyan Masayuki Fujita Unraveling Morphophysiological and Biochemical Responses of Triticum aestivum L. to Extreme pH: Coordinated Actions of Antioxidant Defense and Glyoxalase Systems Plants acidity alkalinity antioxidant defense methylglyoxal phytotoxicity reactive oxygen species |
| title | Unraveling Morphophysiological and Biochemical Responses of Triticum aestivum L. to Extreme pH: Coordinated Actions of Antioxidant Defense and Glyoxalase Systems |
| title_full | Unraveling Morphophysiological and Biochemical Responses of Triticum aestivum L. to Extreme pH: Coordinated Actions of Antioxidant Defense and Glyoxalase Systems |
| title_fullStr | Unraveling Morphophysiological and Biochemical Responses of Triticum aestivum L. to Extreme pH: Coordinated Actions of Antioxidant Defense and Glyoxalase Systems |
| title_full_unstemmed | Unraveling Morphophysiological and Biochemical Responses of Triticum aestivum L. to Extreme pH: Coordinated Actions of Antioxidant Defense and Glyoxalase Systems |
| title_short | Unraveling Morphophysiological and Biochemical Responses of Triticum aestivum L. to Extreme pH: Coordinated Actions of Antioxidant Defense and Glyoxalase Systems |
| title_sort | unraveling morphophysiological and biochemical responses of triticum aestivum l to extreme ph coordinated actions of antioxidant defense and glyoxalase systems |
| topic | acidity alkalinity antioxidant defense methylglyoxal phytotoxicity reactive oxygen species |
| url | http://www.mdpi.com/2223-7747/8/1/24 |
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