A carbapenem-resistant Alcaligenes faecalis strain was isolated from a surveillance swab of a service member injured in Afghanistan. The isolate was positive for bla(NDM) by real-time PCR. Species identification was reevaluated on three identification systems but was inconclusive. Genome sequencing indicated that the closest relative was Acinetobacter schindleri and that bla(NDM-1) was carried on a plasmid that shared >99% identity with one identified in an Acinetobacter lwoffii isolate. The isolate also carried a novel chromosomally encoded class D oxacillinase.
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http://dx.doi.org/10.1128/JCM.00281-13 | DOI Listing |
Sci Rep
December 2024
Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka, 1000, Bangladesh.
J Hazard Mater
December 2024
State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 211135, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, China.
Agricultural soils are important source and sink of antibiotic resistance genes (ARGs). However, little is known about the fate of ARGs in dryland soils, while its human exposure risks were seriously overlooked. Taking the northern Ningxia Plain as a case, this study explored the occurrence of ARGs and its relationship with mobile genetic elements (MGEs), pathogens, and environmental factors.
View Article and Find Full Text PDFPlants (Basel)
July 2024
IBPM-CNR c/o Dipartimento di Biologia e Biotecnologie, Sapienza Università di Roma, Piazzale Aldo Moro, 00185 Roma, Italy.
This greenhouse study evaluated the effects of soil enrichment with rhizosphere bacteria on the growth and accumulation of arsenic in grown on a naturally As-rich soil. Inoculations were performed with a consortium of six bacteria resistant to 100 mM arsenate and effects were compared to those obtained on the sterilized soil. Selected bacteria from the consortium were also utilized individually: PVr_9 homologous to that produces IAA and siderophores and shows ACC deaminase activity, PVr_15 homologous to that contains the arsenate reductase gene, and PVr_5 homologous to that possesses all traits from both PVr_9 and PVr_15.
View Article and Find Full Text PDFJ Hazard Mater
September 2024
Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, PR China.
Antibiotic resistance genes (ARGs) as emerging contaminants, often co-occur with mobile genetic elements (MGEs) and are prevalent in drinking water treatment plants (DWTPs). In this study, the characteristics of free-living (FL) and particle-associated (PA) ARGs associated with bacterial communities were investigated along two processes within a full-scale DWTP. A total of 13 ARGs and two MGEs were detected.
View Article and Find Full Text PDFWater Res
July 2024
College of Environment and Climate, Guangdong Provincial Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, PR China. Electronic address:
The induction of viable but nonculturable (VBNC) bacteria with cellular integrity and low metabolic activity by chemical disinfection causes a significant underestimation of potential microbiological risks in drinking water. Herein, a physical CoO nanowire-assisted electroporation (NW-EP) was developed to induce cell damage via the locally enhanced electric field over nanowire tips, potentially achieving effective inhibition of VBNC cells as compared with chemical chlorination (Cl). NW-EP enabled over 5-log removal of culturable cell for various G+/G- bacteria under voltage of 1.
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