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

/coc·cus/ (kok´us) pl. coc´ci   [L.] a spherical bacterium, less than 1 μm in diameter.coc´cal

coccus

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

coc′cal (kŏk′əl) adj.

coccus

[kok′əs] pl. cocci
Etymology: Gk, kokkos, berry
a bacterium that is round, spheric, or oval, such as gonococcus, pneumococcus, staphylococcus, and streptococcus. coccal, 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]

coccus

pl. cocci [L.] a spherical bacterium, usually slightly less than 1 μm 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). Almost all of the pathogenic cocci are either staphylococci, which occur in clusters, or streptococci, which occur in short or long chains. Both staphylococci and streptococci are gram-positive and do not form spores.
References in periodicals archive ?
Produccion de grana cochinilla (Dactylopius coccus Costa) en plantas de nopal a la intemperie y en microtuneles.
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.
Las especies de Coccus que afectan Coffea arabica en Brasil (Coccoidea: Coccidae) y redescripcion de dos especies.
coccus is lacking, this study was conducted to quantify this variable given that this information could be useful in commercial rearing of the species.
Dentro de esta superfamilia, la familia Dactylopiidae es una de las mas importantes, ya que en ella se encuentra la grana cochinilla Dactylopius coccus Costa, 1829, especie de gran importancia economica pues de ella se obtiene el colorante rojo acido carminico, el cual se usa con varios fines industriales (Vigueras & Portillo 2001).
Taxonomy and family placement of Coccus bassi Targioni Tozzetti, 1867 (Hemiptera: Coccoidea).
Por su parte, Coccus viridis (Green, 1889) y Saissetia coffeae (Walker, 1852) interactuaron con honnigas como Temnothorax sp.
Gatifloxacin eradicated 108 of 122 (89%) pathogens, including those in patients with penicillin-resistant Strepto coccus pneumoniae.
amp; wings, ex Coccus hesperidum on orange, Capital Grounds, Sacramento, Cal.