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https://www.readbyqxmd.com/read/29515534/assessment-of-bona-fide-srnas-in-staphylococcus-aureus
#1
Wenfeng Liu, Tatiana Rochat, Claire Toffano-Nioche, Thao Nguyen Le Lam, Philippe Bouloc, Claire Morvan
Bacterial regulatory RNAs have been extensively studied for over a decade, and are progressively being integrated into the complex genetic regulatory network. Transcriptomic arrays, recent deep-sequencing data and bioinformatics suggest that bacterial genomes produce hundreds of regulatory RNAs. However, while some have been authenticated, the existence of the others varies according to strains and growth conditions, and their detection fluctuates with the methodologies used for data acquisition and interpretation...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28400004/effect-of-food-related-stress-conditions-and-loss-of-agr-and-sigb-on-seb-promoter-activity-in-s-%C3%A2-aureus
#2
Henna-Maria Sihto, Roger Stephan, Christoph Engl, John Chen, Sophia Johler
Staphylococcal enterotoxin B (SEB) causes staphylococcal food poisoning and is produced in up to ten times higher quantities than other major enterotoxins. While Staphylococcus aureus growth is often repressed by competing flora, the organism exhibits a decisive growth advantage under some stress conditions. So far, data on the influence of food-related stressors and regulatory mutations on seb expression is limited and largely based on laboratory strains, which were later reported to harbor mutations. Therefore, the aim of this study was to investigate the influence of stress and regulatory mutations on seb promoter activity...
August 2017: Food Microbiology
https://www.readbyqxmd.com/read/25169861/draft-genome-sequence-of-staphylococcus-aureus-subsp-aureus-strain-hg003-an-nctc8325-derivative
#3
Mohamed Sassi, Brice Felden, Yoann Augagneur
We report the draft genome sequence of a Staphylococcus aureus NCTC8325 derivative, strain HG003. HG003 contains functional global regulators rsbU and tcaR and is therefore considered as a reference for studies of regulation and virulence. The genome is composed of 2,797,898 bp and will be essential for subsequent RNAseq analysis.
2014: Genome Announcements
https://www.readbyqxmd.com/read/22986269/staphylococcus-aureus-persisters-tolerant-to-bactericidal-antibiotics
#4
Sabrina Lechner, Kim Lewis, Ralph Bertram
Bacterial persister cells are non- or slow-growing reversible phenotypic variants of the wild type, tolerant to bactericidal antibiotics. We analyzed here Staphylococcus aureus persister levels by monitoring colony-forming unit counts of planktonically grown cells treated with six different antimicrobials over time. The model laboratory strains HG001-HG003, SA113 and the small colony variant (SCV) strains hemB and menD were challenged by the compounds at different logs of minimal inhibitory concentration (MIC) in exponential or stationary growth phase...
2012: Journal of Molecular Microbiology and Biotechnology
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