Cocci


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to Cocci: Bacilli, valley fever
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Cocci

 

berry-shaped bacteria; diameter, 1–2 microns. Cocci are nonmotile and gram-positive, form no spores, and reproduce by transverse division.

Classified as cocci are Micrococci, Streptococci, Staphylococci, and Sarcina. On solid nutrient media cocci form round, smooth convex colonies (gray, white, yellow, or red). Cocci are widely distributed in nature, living in soil, air, and food products. Lactic-acid streptococci are used in making sour cream, butter, and clabbers. Pathogenic streptococci and staphylococci produce inflammatory processes and purulent diseases—for example, furunculosis, erysipelas, and angina.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Development of a flow chart for identification of Gram-positive anaerobic cocci in the clinical laboratory.
[11] The prevalence of Gram-negative bacteria is slightly higher 51.5% than Gram-positive cocci 48.5% which is in correlation with study done by Amatya et al.
In our case, blood cultures revealed non-hemolytic gram positive cocci, forming short chains mostly in doubles which were initially thought to be Streptocci.
Gemella should be of consideration, especially in high risk individuals, with endovascular infections when standard methods identify slow growing catalase-negative gram-positive cocci. Newer technique, 16S rRNA gene analysis, may be more efficient and accurate in the identification of Gemella spp.
Sixty one isolates were Gram negative rods and 8 isolates were Gram positive cocci whereas 15 samples showed fungal growth (Table 2).
No of Gram Shape Catalase DNASE tests isolated stain test test No of strains Samples BISATE 1 + Cocci + - 2 + Cocci + - 3 + Cocci + + 4 + Cocci + - RUSHUBI 5 + Cocci + + 6 + Cocci + + RUKORE 7 + Cocci + - 8 + Cocci + - CYANTURO 9 + Cocci + - 10 + Cocci + - KAMPANGA 11 + Cocci + - 12 + Cocci + - Table 3: Characterization of Staphylococci strains and suggested nomenclature Strains\ 1 2 3 Lab.
The 27 isolates were Gram positive, cocci shape associated in pairs and/or chains, negative catalase and oxidase reaction.
Bursts of rain followed by long dry spells--a pattern familiar to Californians-- may be ideal growing conditions for cocci spores, and as climate change ensures that more soil stays arid and parched, the disease will travel with greater ease on gusty days in the Central Valley.
' Cocci co-leads negotiations for Waldorf Astoria management deal
bergeri (or bergeriae, named after microbiologist Ulrich Berger) is one of the six species belonging to the genus Gemella, a family of gram-positive cocci arranged in pairs which composes the normal flora of the oral cavity, digestive and urinary tract and can rarely affect these systems.
Adrienne Cocci graduated from Ithaca College's School of Health Sciences and Human Performance with a major in health sciences; and Nathanial Lawrence graduated from Ithaca College's Roy H.