Mechanisms of benzene and benzo[a]pyrene biodegradation in the individually and mixed contaminated soils
Copyright © 2024 Elsevier Ltd. All rights reserved..
There is a lack of knowledge on the biodegradation mechanisms of benzene and benzo [a]pyrene (BaP), representative compounds of polycyclic aromatic hydrocarbons (PAHs), and benzene, toluene, ethylbenzene, and xylene (BTEX), under individually and mixed contaminated soils. Therefore, a set of microcosm experiments were conducted to explore the influence of benzene and BaP on biodegradation under individual and mixed contaminated condition, and their subsequent influence on native microbial consortium. The results revealed that the total mass loss of benzene was 56.0% under benzene and BaP mixed contamination, which was less than that of individual benzene contamination (78.3%). On the other hand, the mass loss of BaP was slightly boosted to 17.6% under the condition of benzene mixed contamination with BaP from that of individual BaP contamination (14.4%). The significant differences between the microbial and biocide treatments for both benzene and BaP removal demonstrated that microbial degradation played a crucial role in the mass loss for both contaminants. In addition, the microbial analyses revealed that the contamination of benzene played a major role in the fluctuations of microbial compositions under co-contaminated conditions. Rhodococcus, Nocardioides, Gailla, and norank_c_Gitt-GS-136 performed a major role in benzene biodegradation under individual and mixed contaminated conditions while Rhodococcus, Noviherbaspirillum, and Phenylobacterium were highly involved in BaP biodegradation. Moreover, binary benzene and BaP contamination highly reduced the Rhodococcus abundance, indicating the toxic influence of co-contamination on the functional key genus. Enzymatic activities revealed that catalase, lipase, and dehydrogenase activities proliferated while polyphenol oxidase was reduced with contamination compared to the control treatment. These results provided the fundamental information to facilitate the development of more efficient bioremediation strategies, which can be tailored to specific remediation of different contamination scenarios.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2024 |
|---|---|
| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:347 |
|---|---|
| Enthalten in: |
Environmental pollution (Barking, Essex : 1987) - 347(2024) vom: 15. Apr., Seite 123710 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Ali, Mukhtiar [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
3417WMA06D |
|---|
| Anmerkungen: |
Date Completed 08.04.2024 Date Revised 08.04.2024 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1016/j.envpol.2024.123710 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM369482506 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM369482506 | ||
| 003 | DE-627 | ||
| 005 | 20240408232616.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 240309s2024 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1016/j.envpol.2024.123710 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1369.xml |
| 035 | |a (DE-627)NLM369482506 | ||
| 035 | |a (NLM)38458518 | ||
| 035 | |a (PII)S0269-7491(24)00424-X | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Ali, Mukhtiar |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Mechanisms of benzene and benzo[a]pyrene biodegradation in the individually and mixed contaminated soils |
| 264 | 1 | |c 2024 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 08.04.2024 | ||
| 500 | |a Date Revised 08.04.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2024 Elsevier Ltd. All rights reserved. | ||
| 520 | |a There is a lack of knowledge on the biodegradation mechanisms of benzene and benzo [a]pyrene (BaP), representative compounds of polycyclic aromatic hydrocarbons (PAHs), and benzene, toluene, ethylbenzene, and xylene (BTEX), under individually and mixed contaminated soils. Therefore, a set of microcosm experiments were conducted to explore the influence of benzene and BaP on biodegradation under individual and mixed contaminated condition, and their subsequent influence on native microbial consortium. The results revealed that the total mass loss of benzene was 56.0% under benzene and BaP mixed contamination, which was less than that of individual benzene contamination (78.3%). On the other hand, the mass loss of BaP was slightly boosted to 17.6% under the condition of benzene mixed contamination with BaP from that of individual BaP contamination (14.4%). The significant differences between the microbial and biocide treatments for both benzene and BaP removal demonstrated that microbial degradation played a crucial role in the mass loss for both contaminants. In addition, the microbial analyses revealed that the contamination of benzene played a major role in the fluctuations of microbial compositions under co-contaminated conditions. Rhodococcus, Nocardioides, Gailla, and norank_c_Gitt-GS-136 performed a major role in benzene biodegradation under individual and mixed contaminated conditions while Rhodococcus, Noviherbaspirillum, and Phenylobacterium were highly involved in BaP biodegradation. Moreover, binary benzene and BaP contamination highly reduced the Rhodococcus abundance, indicating the toxic influence of co-contamination on the functional key genus. Enzymatic activities revealed that catalase, lipase, and dehydrogenase activities proliferated while polyphenol oxidase was reduced with contamination compared to the control treatment. These results provided the fundamental information to facilitate the development of more efficient bioremediation strategies, which can be tailored to specific remediation of different contamination scenarios | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Benzene | |
| 650 | 4 | |a Co-contamination | |
| 650 | 4 | |a Enzymes | |
| 650 | 4 | |a Metabolisms | |
| 650 | 4 | |a benzo[a]pyrene | |
| 650 | 7 | |a Benzene |2 NLM | |
| 650 | 7 | |a J64922108F |2 NLM | |
| 650 | 7 | |a Benzo(a)pyrene |2 NLM | |
| 650 | 7 | |a 3417WMA06D |2 NLM | |
| 650 | 7 | |a Toluene |2 NLM | |
| 650 | 7 | |a 3FPU23BG52 |2 NLM | |
| 650 | 7 | |a Polycyclic Aromatic Hydrocarbons |2 NLM | |
| 650 | 7 | |a Soil |2 NLM | |
| 650 | 7 | |a Soil Pollutants |2 NLM | |
| 700 | 1 | |a Wang, Qing |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Zhuanxia |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Xing |e verfasserin |4 aut | |
| 700 | 1 | |a Ma, Min |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Zhiwen |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Rui |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Biao |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Zhongyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Xiangfeng |e verfasserin |4 aut | |
| 700 | 1 | |a Song, Xin |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Environmental pollution (Barking, Essex : 1987) |d 1987 |g 347(2024) vom: 15. Apr., Seite 123710 |w (DE-627)NLM087741504 |x 1873-6424 |7 nnns |
| 773 | 1 | 8 | |g volume:347 |g year:2024 |g day:15 |g month:04 |g pages:123710 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1016/j.envpol.2024.123710 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 347 |j 2024 |b 15 |c 04 |h 123710 | ||