Sulfur-modified tea-waste biochar improves rice growth in arsenic contaminated soil and reduces arsenic accumulation
Summary: Arsenic (As) is a non-essential carcinogenic metalloid and an issue of concern for rice crops. This study investigated the effects of sulfur-loaded tea waste biochar (TWB) due to modification with sodium sulfide (SSTWB) or thiourea (TUTWB) on As stress and accumulation in rice plants. The r...
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| Language: | English |
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Elsevier
2024-12-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004224026725 |
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| author | Saurabh Kumar Pathak Shraddha Singh Vishnu D. Rajput Shengdao Shan Sudhakar Srivastava |
| author_facet | Saurabh Kumar Pathak Shraddha Singh Vishnu D. Rajput Shengdao Shan Sudhakar Srivastava |
| author_sort | Saurabh Kumar Pathak |
| collection | DOAJ |
| description | Summary: Arsenic (As) is a non-essential carcinogenic metalloid and an issue of concern for rice crops. This study investigated the effects of sulfur-loaded tea waste biochar (TWB) due to modification with sodium sulfide (SSTWB) or thiourea (TUTWB) on As stress and accumulation in rice plants. The results showed that sulfur-modified TWB improved plant morphology compared to plants grown in As-contaminated soil alone. Biochar amendments elevated the activity of antioxidant enzymes in rice plants harvested at 15 and 30 days after transplant (DAT). Additionally, SSTWB and TUTWB significantly reduced As content in shoots by 26% and 19% at 15 DAT, respectively, as compared to TWB. This trend continued at 30 DAT with SSTWB achieving the maximum decrease of 30%. Similar reductions were observed in plant roots. The study suggests that sulfur-modified biochar amendments offer a promising strategy to mitigate the negative effects of As on, and reduce its accumulation in, rice. |
| format | Article |
| id | doaj-art-a9f6aebae9874fef978af42b1cac6dba |
| institution | Kabale University |
| issn | 2589-0042 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-a9f6aebae9874fef978af42b1cac6dba2024-12-22T05:29:23ZengElsevieriScience2589-00422024-12-012712111445Sulfur-modified tea-waste biochar improves rice growth in arsenic contaminated soil and reduces arsenic accumulationSaurabh Kumar Pathak0Shraddha Singh1Vishnu D. Rajput2Shengdao Shan3Sudhakar Srivastava4Institute of Environment and Sustainable Development (IESD), Banaras Hindu University, Varanasi, UP, IndiaNuclear Agriculture & Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, MH, India; Homi Bhabha National Institute, Mumbai, MH, IndiaSouthern Federal University, 344090 Rostov-on-Don, RussiaZhejiang Province Key Laboratory of Recycling and Ecological Treatment of Waste Biomass, Hangzhou 310023, China; School of Environmental and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, ChinaInstitute of Environment and Sustainable Development (IESD), Banaras Hindu University, Varanasi, UP, India; Corresponding authorSummary: Arsenic (As) is a non-essential carcinogenic metalloid and an issue of concern for rice crops. This study investigated the effects of sulfur-loaded tea waste biochar (TWB) due to modification with sodium sulfide (SSTWB) or thiourea (TUTWB) on As stress and accumulation in rice plants. The results showed that sulfur-modified TWB improved plant morphology compared to plants grown in As-contaminated soil alone. Biochar amendments elevated the activity of antioxidant enzymes in rice plants harvested at 15 and 30 days after transplant (DAT). Additionally, SSTWB and TUTWB significantly reduced As content in shoots by 26% and 19% at 15 DAT, respectively, as compared to TWB. This trend continued at 30 DAT with SSTWB achieving the maximum decrease of 30%. Similar reductions were observed in plant roots. The study suggests that sulfur-modified biochar amendments offer a promising strategy to mitigate the negative effects of As on, and reduce its accumulation in, rice.http://www.sciencedirect.com/science/article/pii/S2589004224026725Soil scienceSoil chemistryEnvironmental scienceEnvironmental chemistry |
| spellingShingle | Saurabh Kumar Pathak Shraddha Singh Vishnu D. Rajput Shengdao Shan Sudhakar Srivastava Sulfur-modified tea-waste biochar improves rice growth in arsenic contaminated soil and reduces arsenic accumulation iScience Soil science Soil chemistry Environmental science Environmental chemistry |
| title | Sulfur-modified tea-waste biochar improves rice growth in arsenic contaminated soil and reduces arsenic accumulation |
| title_full | Sulfur-modified tea-waste biochar improves rice growth in arsenic contaminated soil and reduces arsenic accumulation |
| title_fullStr | Sulfur-modified tea-waste biochar improves rice growth in arsenic contaminated soil and reduces arsenic accumulation |
| title_full_unstemmed | Sulfur-modified tea-waste biochar improves rice growth in arsenic contaminated soil and reduces arsenic accumulation |
| title_short | Sulfur-modified tea-waste biochar improves rice growth in arsenic contaminated soil and reduces arsenic accumulation |
| title_sort | sulfur modified tea waste biochar improves rice growth in arsenic contaminated soil and reduces arsenic accumulation |
| topic | Soil science Soil chemistry Environmental science Environmental chemistry |
| url | http://www.sciencedirect.com/science/article/pii/S2589004224026725 |
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