Streptococcus

Streptococcus, from Ancient Greek στρεπτός (streptós), meaning "twisted", and κόκκος (kókkos), meaning "grain", is a genus of gram-positive spherical bacteria that belongs to the family Streptococcaceae, within the order Lactobacillales (lactic acid bacteria), in the phylum Bacillota. Cell division in streptococci occurs along a single axis, thus when growing they tend to form pairs or chains, which may appear bent or twisted. This differs from staphylococci, which divide along multiple axes, thereby generating irregular, grape-like clusters of cells. Most streptococci are oxidase-negative and

AI overview

Streptococcus is a genus of spherical bacteria that form chains when they grow, and the name comes from the Greek words for "twisted" and "grain" because of their characteristic appearance. These bacteria are important because many species are associated with human infections and disease, making them medically significant organisms.

AI-generated from the Wikipedia summary — may contain errors.

Species

Streptococcus

GENUS

KingdomBacteria
PhylumFirmicutes
ClassBacilli
OrderLactobacillales
FamilyStreptococcaceae

Habitatmarine

Observations43

Observations recorded98,040

via GBIF

Research

137,295 papers

Streptococcus milleri group: renewed interest in an elusive pathogen.ReviewEuropean journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 1992Piscitelli SC, Shwed J, Schreckenberger P et al.DOI: 10.1007/BF01960802
Molecular pathogenicity of Streptococcus anginosus.ReviewMolecular oral microbiology · 2014Asam D, Spellerberg BDOI: 10.1111/omi.12056
Streptococcus anginosus ("Streptococcus milleri"): the unrecognized pathogen.ReviewClinical microbiology reviews · 1988Ruoff KLDOI: 10.1128/CMR.1.1.102
The Streptococcus and the host. Present and future challenges.ReviewAdvances in experimental medicine and biology · 1997Fischetti VADOI: 10.1007/978-1-4899-1825-3_5
The novel species Streptococcus tigurinus and its association with oral infection.ReviewVirulence · 2015Zbinden A, Bostanci N, Belibasakis GNDOI: 10.4161/21505594.2014.970472
Iron acquisition and regulation systems in Streptococcus species.ReviewMetallomics : integrated biometal science · 2014Ge R, Sun XDOI: 10.1039/c4mt00011k
Group A streptococcus and its antibiotic resistance.ReviewActa otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2007Passàli D, Lauriello M, Passàli GC et al.
Streptococcus hohhotensis sp. nov., isolated from the breast milk of a healthy woman.International journal of systematic and evolutionary microbiology · 2024Li Y, Han F, Wu Y et al.DOI: 10.1099/ijsem.0.006354

via PubMed

Wikidata facts

Image: Streptococcus.jpg

Show 4 more facts

taxon name: Streptococcus
Commons category: Streptococcus
LPSN URL: www.bacterio.net/streptococcus.html
WordLift URL: data.wordlift.io/wl01714/entity/streptococcus

Sources (5)

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~19 min read

Article

21 sections

Contents

Pathogenesis and classification
Alpha-hemolytic
Pneumococci
The viridans group: alpha-hemolytic
Beta-hemolytic
Group A
Group B
Group C
Group D (enterococci)
Group F streptococci
Group G streptococci
Group H streptococci
Clinical identification
Treatment
Molecular taxonomy and phylogenetics
Genomics
Bacteriophage
Natural genetic transformation
See also
References
External links

The term was coined in 1877 by Viennese surgeon Albert Theodor Billroth (1829–1894), from Ancient Greek στρεπτός (streptós), meaning "twisted", and κόκκος (kókkos), meaning "grain". In 1984, many bacteria formerly grouped in the genus Streptococcus were separated out into the genera Enterococcus and Lactococcus. Currently, over 50 species are recognised in this genus. This genus has been found to be part of the salivary microbiome.