Evaluating the impact of Bt rice straw return on Eisenia fetida: AHP analysis, biomarkers, and Bt protein fate
A 90-d laboratory experiment was carried out using Bacillus thuringiensis (Bt) rice straws (BTTY and GK775) and non-Bt rice straws (MXZ2, HH1179, and HH38). The objective was to investigate the differences in the effects of Bt and non-Bt rice straws on the earthworm Eisenia fetida. The analytic hier...
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| Format: | Article |
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Elsevier
2025-01-01
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| Series: | Ecotoxicology and Environmental Safety |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651324016683 |
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| author | Chuanjun Shi Junfei Li Huiru Zhan Yuanjiao Feng Jianwu Wang Zhengao Xiao Yinghua Shu |
| author_facet | Chuanjun Shi Junfei Li Huiru Zhan Yuanjiao Feng Jianwu Wang Zhengao Xiao Yinghua Shu |
| author_sort | Chuanjun Shi |
| collection | DOAJ |
| description | A 90-d laboratory experiment was carried out using Bacillus thuringiensis (Bt) rice straws (BTTY and GK775) and non-Bt rice straws (MXZ2, HH1179, and HH38). The objective was to investigate the differences in the effects of Bt and non-Bt rice straws on the earthworm Eisenia fetida. The analytic hierarchy process was applied to assess the risk of returning rice straw to soil on E. fetida by measuring their survival rate, relative growth rate, reproduction, total protein, superoxide dismutase, and glutathione peroxidase (GSH-PX). The results showed that returning Bt rice straw to soil poses no risk to E. fetida over time and that the impacts varied depending on the rice variety. The correlation analysis indicated that GSH-PX activity can be regarded as a biomarker to evaluate the impact of returning rice straw to soil on E. fetida, with GSH-PX activity negatively correlated with potential risk. Cry1Ab protein degraded rapidly, with E. fetida activity slightly accelerating the process. The rice variety was a key factor affecting soil nutrients among the different rice straw treatments, which significantly affected E. fetida’s biological and biochemical parameters. Therefore, returning rice straw to soil presented different effects on E. fetida owing to the differences in rice variety rather than the presence of Cry1Ab protein. |
| format | Article |
| id | doaj-art-f3f626d4873149c7a4121e32d74f3bcf |
| institution | Kabale University |
| issn | 0147-6513 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj-art-f3f626d4873149c7a4121e32d74f3bcf2025-02-12T05:29:55ZengElsevierEcotoxicology and Environmental Safety0147-65132025-01-01290117592Evaluating the impact of Bt rice straw return on Eisenia fetida: AHP analysis, biomarkers, and Bt protein fateChuanjun Shi0Junfei Li1Huiru Zhan2Yuanjiao Feng3Jianwu Wang4Zhengao Xiao5Yinghua Shu6Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, ChinaKey Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, ChinaKey Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, ChinaKey Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, ChinaKey Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, ChinaInstitute of Environmental Processes and Pollution Control, and School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, ChinaKey Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China; Correspondence to: Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.A 90-d laboratory experiment was carried out using Bacillus thuringiensis (Bt) rice straws (BTTY and GK775) and non-Bt rice straws (MXZ2, HH1179, and HH38). The objective was to investigate the differences in the effects of Bt and non-Bt rice straws on the earthworm Eisenia fetida. The analytic hierarchy process was applied to assess the risk of returning rice straw to soil on E. fetida by measuring their survival rate, relative growth rate, reproduction, total protein, superoxide dismutase, and glutathione peroxidase (GSH-PX). The results showed that returning Bt rice straw to soil poses no risk to E. fetida over time and that the impacts varied depending on the rice variety. The correlation analysis indicated that GSH-PX activity can be regarded as a biomarker to evaluate the impact of returning rice straw to soil on E. fetida, with GSH-PX activity negatively correlated with potential risk. Cry1Ab protein degraded rapidly, with E. fetida activity slightly accelerating the process. The rice variety was a key factor affecting soil nutrients among the different rice straw treatments, which significantly affected E. fetida’s biological and biochemical parameters. Therefore, returning rice straw to soil presented different effects on E. fetida owing to the differences in rice variety rather than the presence of Cry1Ab protein.http://www.sciencedirect.com/science/article/pii/S0147651324016683Rice straw returnCry1Ab proteinEisenia fetidaAnalytic hierarchy processBiomarker |
| spellingShingle | Chuanjun Shi Junfei Li Huiru Zhan Yuanjiao Feng Jianwu Wang Zhengao Xiao Yinghua Shu Evaluating the impact of Bt rice straw return on Eisenia fetida: AHP analysis, biomarkers, and Bt protein fate Ecotoxicology and Environmental Safety Rice straw return Cry1Ab protein Eisenia fetida Analytic hierarchy process Biomarker |
| title | Evaluating the impact of Bt rice straw return on Eisenia fetida: AHP analysis, biomarkers, and Bt protein fate |
| title_full | Evaluating the impact of Bt rice straw return on Eisenia fetida: AHP analysis, biomarkers, and Bt protein fate |
| title_fullStr | Evaluating the impact of Bt rice straw return on Eisenia fetida: AHP analysis, biomarkers, and Bt protein fate |
| title_full_unstemmed | Evaluating the impact of Bt rice straw return on Eisenia fetida: AHP analysis, biomarkers, and Bt protein fate |
| title_short | Evaluating the impact of Bt rice straw return on Eisenia fetida: AHP analysis, biomarkers, and Bt protein fate |
| title_sort | evaluating the impact of bt rice straw return on eisenia fetida ahp analysis biomarkers and bt protein fate |
| topic | Rice straw return Cry1Ab protein Eisenia fetida Analytic hierarchy process Biomarker |
| url | http://www.sciencedirect.com/science/article/pii/S0147651324016683 |
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