Evolution of Staphylococcus aureus during human colonization and infection

2014 ◽  
Vol 21 ◽  
pp. 542-547 ◽  
Author(s):  
J. Ross Fitzgerald
Keyword(s):  
Staphylococcus Aureus ◽  
Human Colonization

scholarly journals Assessing the potential for raw meat to influence human colonization with Staphylococcus aureus

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Margaret Carrel ◽  
Chang Zhao ◽  
Dipendra Thapaliya ◽  
Patrick Bitterman ◽  
Ashley E. Kates ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Raw Meat ◽  
Human Colonization

scholarly journals Dry Collection and Culture Methods for Recovery of Methicillin-Susceptible and Methicillin-Resistant Staphylococcus aureus Strains from Indoor Home Environments

2012 ◽  
Vol 78 (7) ◽  
pp. 2474-2476 ◽  
Author(s):  
Meghan F. Davis ◽  
Patrick Baron ◽  
Lance B. Price ◽  
D'Ann L. Williams ◽  
Selvi Jeyaseelan ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Exposure Assessment ◽  
Laboratory Experiments ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Culture Methods ◽  
Home Environments ◽  
Content Type ◽  
Asthmatic Children ◽  
Microbiological Methods ◽  
Human Colonization

ABSTRACTStaphylococcus aureusin home environments may serve as a reservoir for human colonization, making sampling of indoor surfaces relevant to exposure assessment. Using laboratory experiments and application to homes of asthmatic children in Barbados, we characterize microbiological methods adapted for settings with transportation delays between sampling and initiation of culture.

scholarly journals Complete Genome Sequences of Two Methicillin-Sensitive Staphylococcus aureus Isolates Representing a Population Subset Highly Prevalent in Human Colonization

2016 ◽  
Vol 4 (4) ◽  
Author(s):  
Robert E. Weber ◽  
Franziska Layer ◽  
Stephan Fuchs ◽  
Jennifer K. Bender ◽  
Stefan Fiedler ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Complete Genome ◽  
Draft Genome ◽  
Sequence Type ◽  
Genome Sequences ◽  
High Quality ◽  
Human Colonization

Here, we report the high-quality draft genome sequences of two methicillin-susceptible Staphylococcus aureus isolates, 08-02119 and 08-02300. Belonging to sequence type 582 (ST582) and ST7, both isolates are representatives of clonal lineages often associated with asymptomatic colonization of humans.

Cytochemical Studies of Cell Wall Biosynthesis in Staphylococcus Aureus

1972 ◽  
Vol 30 ◽  
pp. 328-329
Author(s):  
Masaatsu Koike ◽  
Koichi Nakashima ◽  
Kyoko Iida
Keyword(s):  
Staphylococcus Aureus ◽  
Periodate Oxidation ◽  
Early Time ◽  
The Other ◽  
Penicillin G ◽  
Cell Wall Biosynthesis ◽  
Septal Wall ◽  
Peptidoglycan Biosynthesis ◽  
Gram Positive Bacteria ◽  
Cross Linkage

Penicillin exerts the activity to inhibit the peptide cross linkage between each polysaccharide backbone at the final stage of wall-peptidoglycan biosynthesis of bacteria. Morphologically, alterations of the septal wall and mesosome in gram-positive bacteria, which were occurred in early time after treatment with penicillin, have been observed. In this experiment, these alterations were cytochemically investigated by means of silver-methenamine staining after periodate oxidation, which is applied for detection of localization of wall mucopolysaccharide.Staphylococcus aureus strain 209P treated with 100 u/ml of penicillin G was divided into two aliquotes. One was fixed by Kellenberger-Ryter's OSO4 fixative at 30, 60 and 120 min after addition of the antibiotic, dehydrated through alcohol series, and embedded in Epon 812 (Specimen A). The other was fixed by 21 glutaraldehyde, dehydrated through glycolmethacrylate series and embedded in glycolmethacrylate mixture, according to Bernhard's method (Specimen B).

Gold labeling of teichoic acid on adjacent surfaces of staphylococcus aureus

1990 ◽  
Vol 48 (3) ◽  
pp. 578-579
Author(s):  
Margaret Hukee
Keyword(s):  
Staphylococcus Aureus ◽  
Teichoic Acid ◽  
Protein Labeling ◽  
Minimal Amount ◽  
Section Thickness ◽  
Double Labeling ◽  
Parallel Surfaces ◽  
Supporting Membrane

Gold labeling of two antigens (double labeling) is often done on two section surfaces separated by section thickness. Whether labeling is done on both sides of the same section or on two parallel surfaces separated by section thickness (PSSST), comparable results are dependent on an equal number of epitopes being exposed at each surface. We propose a method to study protein labeling within the same field of proteins, by examining two directly adjacent surfaces that were split during sectioning. The number of labeling sites on adjacent surfaces (AS) were compared to sites on PSSST surfaces in individual bacteria.Since each bacteria needed to be recognizable in all three section surfaces, one-hole grids were used for labeling. One-hole grids require a supporting membrane and excessive handling during labeling often ruptures the membrane. To minimize handling, a labeling chamber was designed that is inexpensive, disposable, minimizes contamination, and uses a minimal amount of solution.

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