The activities of indigenous bacterial communities in polychlorinated biphenyls (PCBs) contaminated environments is closely related to the efficiency of bioremediation processes. Using resuscitation promoting factor (Rpf) from Micrococcus luteus is a promising method for resuscitation and stimulation of functional bacterial populations under stressful conditions. This study aims to use the Rpf to accelerate the biodegradation of Aroclor 1242, and explore putative PCB degraders which were resuscitated by Rpf addition. The Rpf-responsive bacterial populations were investigated using culture-dependent and culture-independent approaches, respectively. The results confirm that Rpf was capable of enhancing PCB degradation of enriched cultures from PCB-contaminated soils, and improving the activities of cultures with low tolerance to PCBs. High-throughput 16S rRNA analysis displays that the Rpf greatly altered the composition and abundance of bacterial populations in the phylum Proteobacteria. Identification of the resuscitated strains further suggests that the Rpf-responsive population was mostly represented by Sphingomonas and Pseudomonas, which are most likely the key PCB-degraders for enhanced biodegradation of PCBs.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.chemosphere.2020.128283 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The hidden cost of illicit trade: Evaluating the physiological health of smuggled European glass eels (Anguilla anguilla).
Sci Total Environ
January 2025
Aquaculture Program, Institute of Agrifood Research and Technology (IRTA), La Ràpita, Spain.
European eel is considered a "critically endangered" species due to its population decline (c.a. 98 %) in all European waters, primarily because human activities.
View Article and Find Full Text PDFFatal systemic bacterial infections in two harbour porpoises (Phocoena phocoena) secondary to bite wounds from grey seals (Halichoerus grypus).
J Comp Pathol
January 2025
Scottish Marine Animal Stranding Scheme, School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, Scotland, UK.
Mycoplasma phocicerebrale, the causative agent of seal ('speck') finger, a zoonotic disease, is a common commensal in the oral cavity of various seal species. Historically associated with seal hunters, it remains a significant risk for those handling or rehabilitating marine mammals. While primarily known for causing severe cellulitis in humans, M.
View Article and Find Full Text PDFImpact of container type on the microbiome of airag, a Mongolian fermented mare's milk.
Biosci Microbiota Food Health
October 2024
Division of Systems Bioengineering, Department of Bioresource and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
Airag, a fermented mare's milk in Mongolia, exhibits diverse flavors and microbiota due to distinct production processes and environments in nomadic households. Recently, there has been a shift from the traditional cow skin container, 'khokhuur', to a plastic container for airag production, potentially impacting the microbiota and quality. To address this notion, we aimed to elucidate the differences in the microbiota between airag samples from a plastic container and those from a khokhuur.
View Article and Find Full Text PDFGut microbiota involvement in the effect of water-soluble dietary fiber on fatty liver and fibrosis.
Biosci Microbiota Food Health
August 2024
Department of Gastroenterology, Hematology and Clinical immunology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki-shi, Aomori 036-8562, Japan.
The beneficial effects of water-soluble dietary fiber on liver fat and fibrosis involve the gut microbiota; however, few epidemiological studies have investigated this association. This large-scale epidemiological study aimed to determine the effect of water-soluble dietary fiber intake on liver fat and fibrosis via gut microbiota for the general population. We divided low- and high-intake groups by median daily water-soluble dietary fiber intake and matched background factors by propensity score matching for sex and age.
View Article and Find Full Text PDFis the etiologic agent of the plague. A hallmark of plague is subversion of the host immune response by disrupting host signaling pathways required for inflammation. This non-inflammatory environment permits bacterial colonization and has been shown to be essential for disease manifestation.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!