Microbial Degradation of Environmental Pollutants

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Microbiology".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 1495

Special Issue Editor


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Guest Editor
College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
Interests: environmental biotechnology theory and application; microbial physiological ecology and molecular ecology; waste recycling theory and technology

Special Issue Information

Dear Colleagues,

Emerging contaminants are a group of natural and synthetic chemicals and biological agents that are not or poorly regulated. These substances are currently of concern because they have known or suspected adverse impacts on the environment and on human health. The list of these substances is particularly long and includes antibiotics; natural and synthetic hormones; endocrine disruptors; cosmetics and personal care products; industrial products, such as surfactants, additives, flame retardants and nanomaterials; microplastics; and pathogens. The number of chemical substances concerned is constantly changing, both in terms of parent substances and their degradation products, for example, resulting from biological treatment. Due to the advantages offered by these products in everyday life, many of them are employed and released continuously into the environment, even at very low concentrations, and some can cause chronic toxicity, endocrine disruption in humans and aquatic organisms, and the development of antibiotic-resistant bacteria. It is, therefore, necessary to mobilize efforts to protect human health and biodiversity.

In this Special Issue, advances in understanding the degradation pathways, bioremediation and risk control of emerging contaminants will be presented. Finally, this Special Issue will strengthen the environmental benchmark research of emerging contaminants based on human health and ecological environment safety, and strengthen research on management technologies to provide support for the environmental security of emerging contaminants and decision-making support for the global implementation of the convention.

Prof. Dr. Ning Hou
Guest Editor

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Keywords

  • emerging contaminants
  • biological technology
  • biodegradation
  • environmental risk
  • health risk assessment

Published Papers (1 paper)

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Research

11 pages, 1219 KiB  
Article
Fipronil Degradation in Soil by Enterobacter chengduensis Strain G2.8: Metabolic Perspective
by Caio Prado, Rodrigo Pereira, Lucia Durrant, Rômulo Júnior, Francine Piubeli and Maricy Bonfá
Life 2023, 13(9), 1935; https://doi.org/10.3390/life13091935 - 20 Sep 2023
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Abstract
Fipronil is an insecticide widely used in the agricultural and veterinary sectors for its efficacy in pest control. The presence of fipronil in the environment is mainly due to agricultural and domestic practices and is frequently found in different types of environmental matrices [...] Read more.
Fipronil is an insecticide widely used in the agricultural and veterinary sectors for its efficacy in pest control. The presence of fipronil in the environment is mainly due to agricultural and domestic practices and is frequently found in different types of environmental matrices in concentrations ranging from µg/L to mg/L and can be hazardous to non-target organisms due to its high toxicity. This study was carried out to obtain and characterize microorganisms from soil which are capable of biodegrading fipronil that could be of great biotechnological interest. For this purpose, bioprospecting was carried out using fipronil (0.6 g/L) as the main source of carbon and nitrogen for growth. Once obtained, the strain was identified by sequencing the 16S ribosomal RNA (rRNA) gene and the capacity to degrade fipronil was monitored by GC-MS. Our study showed a presence in soil samples of the strain identified as Enterobacter chengduensis, which was able to metabolize fipronil and its metabolites during the mineralization process. Enterobacter chengduensis was able to biodegrade fipronil (96%) and its metabolites fipronil-sulfone (92%) and fipronil-sulfide (79%) in 14 days. Overall, the results of this study provided a bacterium with great potential that could contribute to the degradation of fipronil in the environment. Full article
(This article belongs to the Special Issue Microbial Degradation of Environmental Pollutants)
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