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Unlabelled: Thiosulfate-citrate-bile salts-sucrose (TCBS) agar is a selective and differential media for the enrichment of pathogenic . We observed that an exonuclease VII ( ) mutant of failed to grow on TCBS agar, suggesting that DNA repair mutant strains may be hampered for growth in this selective media. Examination of the selective components of TCBS revealed that bile acids were primarily responsible for toxicity of the mutant.
View Article and Find Full Text PDFThe Functional and Structural Succession of Mesic-Grassland Soil Microbiomes Beneath Decomposing Large Herbivore Carcasses.
Environ Microbiol
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Department of Biochemistry, Genetics and Microbiology, Centre for Microbial Ecology and Genomics, University of Pretoria, Pretoria, South Africa.
Plant detritus is abundant in grasslands but decomposes slowly and is relatively nutrient-poor, whereas animal carcasses are labile and nutrient-rich. Recent studies have demonstrated that labile nutrients from carcasses can significantly alter the long-term soil microbial function at an ecosystem scale. However, there is a paucity of knowledge on the functional and structural response and temporal scale of soil microbiomes beneath large herbivore carcasses.
View Article and Find Full Text PDFA multidisciplinary pain management program for patients with chronic low back pain: a randomized, single-blind, controlled, feasibility study.
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Pain Medicine Section, Anesthesiology Dept, Hospital Clinic de Barcelona, Barcelona, Spain.
Background: Multidisciplinary programs are the first recommendation for non-specific chronic low-back pain, but implementing this type of program is complicated to get up and running. The primary aim of this study was to assess the feasibility and appropriateness of the PAINDOC multidisciplinary program for subjects with chronic low-back pain. The secondary objectives were to evaluate the decrease in pain intensity, pain-related disability and pain catastrophizing, as well as the improvement in quality of life with this program.
View Article and Find Full Text PDFAmeliorating Effects of Antibiotic Alternatives on the Performance and Pathological Parameters of Salmonella Typhimurium Infected Broiler Chickens.
Microb Pathog
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Cytology and Histology Department, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt. Electronic address:
The purpose of this study was to investigate the effects of thyme oil (TO), chitosan nanoparticles (CS-NPs), and TO-loaded-CS-NPs on controlling Salmonella Typhimurium (S. Typhimurium) infection in broiler chickens when compared to ciprofloxacin (Cip) antibiotic treatment. The CS-NPs and TO-loaded-CS-NPs were initially characterized using a transmission electron microscope.
View Article and Find Full Text PDFRevealing real impact of microalgae on seasonal dynamics of bacterial community in a pilot-scale microalgal-bacterial consortium system.
Water Res
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State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China. Electronic address:
The microalgal-bacterial consortium (MBC) system is recognized as an advanced approach for nitrogen and phosphorus removal in wastewater treatment. However, the influence of microalgae on bacterial community dynamics and niche differentiation across varying seasonal conditions remains unexplored. In this study, we established a pilot-scale continuous-flow MBC system to disentangle, for the first time, the impact of microalgae on seasonal bacterial community succession by conducting monthly time-series sampling over a full seasonal cycle.
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