coccus


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Related to coccus: lactobacillus, Coccus cacti

coccus

 [kok´us] (pl. coc´ci) (L.)
a spherical bacterium, usually slightly less than 1 μ in diameter, belonging to the Micrococcaceae family. It is one of the three basic forms of bacteria, the other two being bacillus (rod-shaped) and spirillum (spiral-shaped). A pathogenic coccus can almost always be classified as either a staphylococcus (occurring in clusters), or a streptococcus (occurring in short or long chains). Both staphylococci and streptococci are gram-positive and do not form spores.

The staphylococci are responsible for many serious infections, especially Staphylococcus aureus, which is the causative agent in boils, abscesses, osteomyelitis, and a large variety of other infections. Staphylococci have received much attention in recent years because of the ability of most strains to develop a resistance to antibiotics.

The most dangerous streptococci are those of the beta-hemolytic type. Various species of streptococci cause sore throat, scarlet fever, mastoiditis, and septicemia.
Cocci.

coc·cus

, pl.

coc·ci

(kok'ŭs, kok'sī), Avoid mispronouncing the plural form kok'ī.
1. A bacterium of round, spheroid, or ovoid form.
2. Synonym(s): cochineal
[G. kokkos, berry]

coccus

(kŏk′əs)
n. pl. cocci (kŏk′sī, kŏk′ī)
A bacterium having a spherical or spheroidal shape.

coc′cal (kŏk′əl) adj.

coc·cus

, pl. cocci (kokŭs, -sī)
1. A bacterium of round, spheroid, or ovoid form.
2. Synonym(s): cochineal.
[G. kokkos, berry]

coccus

A common type of spherical or spheroidal bacterium. Cocci connected in line are called STREPTOCOCCI; those in bunches are called STAPHYLOCOCCI.

coccus

a bacterium having a spherical or globular form.

coc·cus

, pl. cocci (kokŭs, -sī)
A bacterium of round, spheroid, or ovoid form.
[G. kokkos, berry]
References in periodicals archive ?
coccus. Tekelenburg (1995) afirma que la fertilizacion organica favorece el establecimiento y calidad del insecto; mientras, Vigueras et al.
Dactylopius coccus Costa, 1829 es una especie de gran importancia comercial, debido a que de las hembras adultas se obtiene el colorante rojo acido carminico, el cual tiene una gran cantidad de aplicaciones en diferentes industrias, principalmente en la de los alimentos, la farmaceutica y la de los cosmeticos (Mendez et al.
Dactylopius coccus, flora which the natural dye carminic acid is obtained, is highly important for industry processes.
Ultrastructure of the tropharium of dactylopius coccus costa, 1829 (Hemiptera: Coccoidea: Dactylopiidae)
Luke's-Roosevelt Hospital Center in New York immediately after use yielded a mixture of Staphylo coccus epidermidis, Pseudomonas, and Acinetobacter, Dr.
Gatifloxacin eradicated 108 of 122 (89%) pathogens, including those in patients with penicillin-resistant Strepto coccus pneumoniae.
& wings, ex Coccus hesperidum on orange, Capital Grounds, Sacramento, Cal., Nov.
nov., a novel, anaerobic, gram-negative coccus isolated from clinical samples.