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Questions and Answers
Which order does Staphylococcus belong to?
What is the meaning of the prefix 'staphylo-' in the name 'Staphylococcus'?
How many species of Staphylococcus have at least two subspecies?
Where do many species of Staphylococcus reside normally?
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What does the American Society for Microbiology abbreviate coagulase-negative staphylococci as?
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Which S. aureus genomes were the first to be sequenced in 2001?
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What has the use of genomic data provided for researchers working with S. aureus?
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What have whole genome technologies, such as sequencing projects and microarrays, shown about S. aureus strains?
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What has enabled the tracking of different strains of S. aureus?
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What has been attributed to the widespread incidence of antibiotic resistance across various strains of S. aureus or across different species of Staphylococcus?
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What is a highly salt-tolerant host for some marine sponge associated Staphylococcus species?
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Where are various strains of Staphylococcus available from?
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Which enzyme is responsible for causing blood clot formation in Staphylococcus species?
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Which group of Staphylococcus species includes S. delphini, S. intermedius, and S. pseudintermedius?
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Which species of Staphylococcus was previously considered a variant of S. aureus before being described as a new species in 2015?
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Which Staphylococcus species is predominantly implicated in genitourinary tract infections in sexually active young women?
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Which group of Staphylococcus species is generally novobiocin-resistant?
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Which Staphylococcus species is known to cause severe infections in immunosuppressed patients and those with central venous catheters?
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Which Staphylococcus species is oxidase-positive due to cytochrome c oxidase?
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Which new coagulase-negative Staphylococcus species was isolated from Antarctica and possibly belongs to the S. saprophyticus group?
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"Staphylococcus argenteus" and "Staphylococcus schweitzeri" were previously considered variants of which Staphylococcus species before being described as new species in 2015?
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Which test is required for the identification of some Staphylococcus species?
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How many clusters do most Staphylococcus species fall into based on 16s rRNA sequences?
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Which group includes S. arlettae, S. cohnii, and S. equorum?
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Study Notes
- Taxonomy of Staphylococcus species is based on 16s rRNA sequences, with most falling into 11 clusters
- Staphylococcus argenteus and Staphylococcus schweitzeri were described as new species in 2015, previously considered variants of S. aureus
- Staphylococcus edaphicus, a new coagulase-negative species, was isolated from Antarctica, possibly belonging to the S. saprophyticus group
- Three proposed groups (A, B, C) based on orthologous gene content
- Group A includes S. aureus, S. borealis, S. capitis, S. epidermidis, S. haemolyticus, S. hominis, S. lugdunensis, S. pettenkoferi, S. simiae, and S. warneri
- Group B includes S. arlettae, S. cohnii, S. equorum, S. saprophyticus, and S. xylosus
- Group C includes S. delphini, S. intermedius, and S. pseudintermedius
- S. saprophyticus and S. sciuri groups are generally novobiocin-resistant, and the S. sciuri group is oxidase-positive due to cytochrome c oxidase
- Some Staphylococcus species require specific biochemical tests for identification, including coagulase production test
- Seven Staphylococcus species are coagulase-positive: S. aureus, S. delphini, S. hyicus, S. intermedius, S. lutrae, S. pseudintermedius, and S. schleiferi subsp. coagulans
- S. aureus is coagulase-positive, but some strains may not produce coagulase
- Coagulase is an enzyme that causes blood clot formation, and its absence can aid in identifying coagulase-negative Staphylococcus species
- S. epidermidis, a commensal of the skin, can cause severe infections in immunosuppressed patients and those with central venous catheters
- S. saprophyticus is a coagulase-negative species that is part of the normal vaginal flora and is predominantly implicated in genitourinary tract infections in sexually active young women.
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Description
Test your knowledge of Staphylococcus bacteria, a genus of Gram-positive bacteria known for their spherical shape and grape-like clusters. Learn more about the characteristics and history of these facultative anaerobic organisms.
