Complete metabolic study by dibutyl phthalate degrading Pseudomonas sp. DNB-S1

Yu, Hui; Wang, Lei; Lin, Yulong; Liu, Weixin; Tuyiringire, Diogene; Jiao, Yaqi; Zhang, Lin; Meng, Qingjuan; Zhang, Ying

doi:10.1016/j.ecoenv.2020.110378

Cited by 33 publications

(7 citation statements)

References 42 publications

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“…In the soil-isolated Pseudomonas sp. Strain, DNB-S1, two metabolic pathways, namely the protocatechuate pathway and the gentisate pathway, were identified to metabolize DBP [61]. In addition, we have shown that the phthalates and their substitutes did not affect the growth of P. aeruginosa H103, nor that of 25 clinical strains isolated from lower respiratory tract sites of different cystic fibrosis patients.…”

Section: Discussionmentioning

confidence: 93%

Effect of Phthalates and Their Substitutes on the Physiology of Pseudomonas aeruginosa

et al. 2022

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Phthalates are used in a variety of applications—for example, as plasticizers in polyvinylchloride products to improve their flexibility—and can be easily released into the environment. In addition to being major persistent organic environmental pollutants, some phthalates are responsible for the carcinogenicity, teratogenicity, and endocrine disruption that are notably affecting steroidogenesis in mammals. Numerous studies have thus focused on deciphering their effects on mammals and eukaryotic cells. While multicellular organisms such as humans are known to display various microbiota, including all of the microorganisms that may be commensal, symbiotic, or pathogenic, few studies have aimed at investigating the relationships between phthalates and bacteria, notably regarding their effects on opportunistic pathogens and the severity of the associated pathologies. Herein, the effects of phthalates and their substitutes were investigated on the human pathogen, Pseudomonas aeruginosa, in terms of physiology, virulence, susceptibility to antibiotics, and ability to form biofilms. We show in particular that most of these compounds increased biofilm formation, while some of them enhanced the bacterial membrane fluidity and altered the bacterial morphology.

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Section: Discussionmentioning

confidence: 93%

Effect of Phthalates and Their Substitutes on the Physiology of Pseudomonas aeruginosa

et al. 2022

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“…The upregulation of aspartic acid indicates that it maintains cell homeostasis during the degradation of petroleum hydrocarbons by bacteria, ensuring efficient degradation of petroleum hydrocarbons. [ 40 ] 1‐Methylhydantoin is involved in arginine and proline metabolism pathways. Both 3‐hydroxybutyric acid and 4‐hydroxybutyric acid belong to the butanoate metabolism pathway.…”

Section: Resultsmentioning

confidence: 99%

Degrading characteristics of oil‐degrading bacteria and its study of petroleum hydrocarbon metabolites

Ma,

Zhu,

Liu

et al. 2023

CLEAN Soil Air Water

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Exploring the community characteristics of petroleum degrading bacteria and revealing the types of petroleum metabolites produced by degrading bacteria play an important role in solving the problem of oil pollution. In this study, the bacterial suspension was extracted from the sludge of the sewage treatment plant, and the efficient dominant bacteria were enriched and cultured by microbial screening. The optimal environmental conditions and kinetic behavior of microbial degradation of petroleum hydrocarbons in groundwater were discussed, and the metabolites of microbial degradation of petroleum hydrocarbons were analyzed. The results showed that the optimum degradation conditions of the strain were as follows: bacterial suspension inoculum: 2%, pH: 7, temperature: 30°C, initial concentration of contaminated water sample: 500 mg/L. Under these conditions, the microbial petroleum hydrocarbon degradation efficiency was 84.7% and followed the first‐order kinetics; qualitative and quantitative statistical analysis of the metabolites of the microbial degradation of petroleum hydrocarbons by gas chromatography‐time‐of‐flight mass spectrometry was performed. A total of 10 significantly upregulated products and 12 significantly downregulated products were screened, which were significantly different from the metabolites of the control group. Further microbial community analysis showed that Pseudomonas was dominant in the bacterial suspension, more than 99.5%, which was significantly different from the sludge sample, providing data support for the degradation of petroleum hydrocarbons by Pseudomonas. This study has provided a scientific basis for in situ remediation of petroleum pollution in groundwater.

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“…These properties of MPs allow heterotrophic organisms such as cyanobacteria and Basidiomycota to grow on them. It increases the abundance of microplastic-degrading bacteria, 33 promotes microbiota composition changes, uptake of isotopic elements, and alters growth and reproduction. 34 Low-density polyethylene microplastic concentration ranges from 2-7%, affecting the soil bacterial diversity.…”

Section: Microbial Diversity and Adaptation With Mpsmentioning

confidence: 99%

Microplastic emerging pollutants – impact on microbiological diversity, diarrhea, antibiotic resistance, and bioremediation

Uthra,

Chitra,

Damodharan

et al. 2023

Environ. Sci.: Adv.

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Complete metabolic study by dibutyl phthalate degrading Pseudomonas sp. DNB-S1

Cited by 33 publications

References 42 publications

Effect of Phthalates and Their Substitutes on the Physiology of Pseudomonas aeruginosa

Effect of Phthalates and Their Substitutes on the Physiology of Pseudomonas aeruginosa

Degrading characteristics of oil‐degrading bacteria and its study of petroleum hydrocarbon metabolites

Microplastic emerging pollutants – impact on microbiological diversity, diarrhea, antibiotic resistance, and bioremediation

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