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Questions and Answers
Which order does Staphylococcus belong to?
Which order does Staphylococcus belong to?
- Pseudomonadales
- Actinomycetales
- Lactobacillales (correct)
- Rhodobacterales
What is the meaning of the prefix 'staphylo-' in the name 'Staphylococcus'?
What is the meaning of the prefix 'staphylo-' in the name 'Staphylococcus'?
- Anaerobic
- Cluster (correct)
- Round
- Berry
How many species of Staphylococcus have at least two subspecies?
How many species of Staphylococcus have at least two subspecies?
- 12
- 11
- 10
- 9 (correct)
Where do many species of Staphylococcus reside normally?
Where do many species of Staphylococcus reside normally?
What does the American Society for Microbiology abbreviate coagulase-negative staphylococci as?
What does the American Society for Microbiology abbreviate coagulase-negative staphylococci as?
Which S. aureus genomes were the first to be sequenced in 2001?
Which S. aureus genomes were the first to be sequenced in 2001?
What has the use of genomic data provided for researchers working with S. aureus?
What has the use of genomic data provided for researchers working with S. aureus?
What have whole genome technologies, such as sequencing projects and microarrays, shown about S. aureus strains?
What have whole genome technologies, such as sequencing projects and microarrays, shown about S. aureus strains?
What has enabled the tracking of different strains of S. aureus?
What has enabled the tracking of different strains of S. aureus?
What has been attributed to the widespread incidence of antibiotic resistance across various strains of S. aureus or across different species of Staphylococcus?
What has been attributed to the widespread incidence of antibiotic resistance across various strains of S. aureus or across different species of Staphylococcus?
What is a highly salt-tolerant host for some marine sponge associated Staphylococcus species?
What is a highly salt-tolerant host for some marine sponge associated Staphylococcus species?
Where are various strains of Staphylococcus available from?
Where are various strains of Staphylococcus available from?
Which enzyme is responsible for causing blood clot formation in Staphylococcus species?
Which enzyme is responsible for causing blood clot formation in Staphylococcus species?
Which group of Staphylococcus species includes S. delphini, S. intermedius, and S. pseudintermedius?
Which group of Staphylococcus species includes S. delphini, S. intermedius, and S. pseudintermedius?
Which species of Staphylococcus was previously considered a variant of S. aureus before being described as a new species in 2015?
Which species of Staphylococcus was previously considered a variant of S. aureus before being described as a new species in 2015?
Which Staphylococcus species is predominantly implicated in genitourinary tract infections in sexually active young women?
Which Staphylococcus species is predominantly implicated in genitourinary tract infections in sexually active young women?
Which group of Staphylococcus species is generally novobiocin-resistant?
Which group of Staphylococcus species is generally novobiocin-resistant?
Which Staphylococcus species is known to cause severe infections in immunosuppressed patients and those with central venous catheters?
Which Staphylococcus species is known to cause severe infections in immunosuppressed patients and those with central venous catheters?
Which Staphylococcus species is oxidase-positive due to cytochrome c oxidase?
Which Staphylococcus species is oxidase-positive due to cytochrome c oxidase?
Which new coagulase-negative Staphylococcus species was isolated from Antarctica and possibly belongs to the S. saprophyticus group?
Which new coagulase-negative Staphylococcus species was isolated from Antarctica and possibly belongs to the S. saprophyticus group?
"Staphylococcus argenteus" and "Staphylococcus schweitzeri" were previously considered variants of which Staphylococcus species before being described as new species in 2015?
"Staphylococcus argenteus" and "Staphylococcus schweitzeri" were previously considered variants of which Staphylococcus species before being described as new species in 2015?
Which test is required for the identification of some Staphylococcus species?
Which test is required for the identification of some Staphylococcus species?
How many clusters do most Staphylococcus species fall into based on 16s rRNA sequences?
How many clusters do most Staphylococcus species fall into based on 16s rRNA sequences?
Which group includes S. arlettae, S. cohnii, and S. equorum?
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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