Esterase and ALDH dehydrogenase-based pesticide degradation by Bacillus brevis 1B from a contaminated environment
Copyright © 2023 Elsevier Inc. All rights reserved..
The isolated bacterial strain (Bacillus brevis strain 1 B) showed a maximum tolerated level of 450 mg L-1 of the selected pesticides namely: imidacloprid, fipronil, cypermethrin, and sulfosulfuron. Within 15 days of the experiment, strain 1 B was able to reduce up to 95% of a pesticide mixture (20 mg L-1) in a carbon-deficient medium (minimal medium). The optimal conditions obtained using Response Surface Methodology (RSM) were: inoculums; 2.0 × 107 CFU mL-1, shaking speed; 120 rpm, and pesticide concentration; 80 mg L-1. After 15 days of soil-based bioremediation using strain 1 B, the degradation pattern for imidacloprid, fipronil, cypermethrin, sulfosulfuron, and control was 99, 98.5, 94, 91.67, and 7%, respectively. Gas chromatography-mass spectrometry (GC-MS) analysis was used to determine the intermediate metabolites of cypermethrin with bacterial 1 B as 2-cyclopenten-1-one, 2-methylpyrrolidine, 2-oxonanone, 2-pentenoic acid, 2-penten-1-ol, hexadecanoic acid or palmitic acid, pentadecanoic acid, 3-cyclopentylpropionic acid, and 2-dimethyl. Furthermore, genes encoding aldehyde dehydrogenase (ALDH) and esterase were expressed under stress conditions and connected to pesticide bioremediation. Hence the efficacy of Bacillus brevis (1 B) could be employed for the bioremediation of pesticide mixtures and other toxic substances (dye, polyaromatic hydrocarbon, etc.) from contaminated sites.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:232 |
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| Enthalten in: |
Environmental research - 232(2023) vom: 01. Sept., Seite 116332 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Gangola, Saurabh [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 17.07.2023 Date Revised 16.11.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.envres.2023.116332 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM357816757 |
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| 245 | 1 | 0 | |a Esterase and ALDH dehydrogenase-based pesticide degradation by Bacillus brevis 1B from a contaminated environment |
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| 520 | |a Copyright © 2023 Elsevier Inc. All rights reserved. | ||
| 520 | |a The isolated bacterial strain (Bacillus brevis strain 1 B) showed a maximum tolerated level of 450 mg L-1 of the selected pesticides namely: imidacloprid, fipronil, cypermethrin, and sulfosulfuron. Within 15 days of the experiment, strain 1 B was able to reduce up to 95% of a pesticide mixture (20 mg L-1) in a carbon-deficient medium (minimal medium). The optimal conditions obtained using Response Surface Methodology (RSM) were: inoculums; 2.0 × 107 CFU mL-1, shaking speed; 120 rpm, and pesticide concentration; 80 mg L-1. After 15 days of soil-based bioremediation using strain 1 B, the degradation pattern for imidacloprid, fipronil, cypermethrin, sulfosulfuron, and control was 99, 98.5, 94, 91.67, and 7%, respectively. Gas chromatography-mass spectrometry (GC-MS) analysis was used to determine the intermediate metabolites of cypermethrin with bacterial 1 B as 2-cyclopenten-1-one, 2-methylpyrrolidine, 2-oxonanone, 2-pentenoic acid, 2-penten-1-ol, hexadecanoic acid or palmitic acid, pentadecanoic acid, 3-cyclopentylpropionic acid, and 2-dimethyl. Furthermore, genes encoding aldehyde dehydrogenase (ALDH) and esterase were expressed under stress conditions and connected to pesticide bioremediation. Hence the efficacy of Bacillus brevis (1 B) could be employed for the bioremediation of pesticide mixtures and other toxic substances (dye, polyaromatic hydrocarbon, etc.) from contaminated sites | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a ALDH | |
| 650 | 4 | |a Bacillus brevis 1B | |
| 650 | 4 | |a Biodegradation | |
| 650 | 4 | |a Esterase | |
| 650 | 4 | |a Intermediate metabolites | |
| 650 | 4 | |a Pesticides | |
| 650 | 7 | |a cypermethrin |2 NLM | |
| 650 | 7 | |a 1TR49121NP |2 NLM | |
| 650 | 7 | |a Pesticides |2 NLM | |
| 650 | 7 | |a imidacloprid |2 NLM | |
| 650 | 7 | |a 3BN7M937V8 |2 NLM | |
| 650 | 7 | |a sulfosulfuron |2 NLM | |
| 650 | 7 | |a Y0XC20DL6D |2 NLM | |
| 650 | 7 | |a Oxidoreductases |2 NLM | |
| 650 | 7 | |a EC 1.- |2 NLM | |
| 650 | 7 | |a Aldehyde Dehydrogenase |2 NLM | |
| 650 | 7 | |a EC 1.2.1.3 |2 NLM | |
| 650 | 7 | |a Esterases |2 NLM | |
| 650 | 7 | |a EC 3.1.- |2 NLM | |
| 650 | 7 | |a Soil Pollutants |2 NLM | |
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| 700 | 1 | |a Joshi, Samiksha |e verfasserin |4 aut | |
| 700 | 1 | |a Sharma, Anita |e verfasserin |4 aut | |
| 700 | 1 | |a Simsek, Halis |e verfasserin |4 aut | |
| 700 | 1 | |a Bhatt, Pankaj |e verfasserin |4 aut | |
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