Peptostreptococcus

Peptostreptococcus

[pep′təstrep′təkok′əs]

a genus of gram-positive anaerobic chemoorganotrophic bacteria that occur in pairs or chains. The potentially pathogenic organisms are found in normal and pathologic female genital tracts and in the intestinal and respiratory tracts of normal humans. They have been associated with a variety of disorders ranging from appendicitis to putrefactive wounds.

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Peptostreptococcus [pep″to-strep″to-kok´us]

a genus of gram-positive, aerobic, coccoid bacteria; they are part of the normal flora of the mouth, upper respiratory tract, and large intestine and are also opportunistic pathogens that cause soft tissue infections and bacteremias. Species include P. anaero´bius, P. lanceola´tus, P. mi´cros, and P. produc´tus.

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peptide,

n a compound of two or more amino acids in which the α-carboxyl group of one is united with the α-amino group of another, with the elimination of a molecule of water, creating a peptide bond —CO—NH—.

Peptostreptococcus

n a genus of nonmotile, anaerobic, chemoor-ganotrophic bacteria found in the oral cavity and intestinal tracts of normal humans. They may be pathogenic and may be found in pyogenic infections, putrefactive war wounds, and appendicitis.

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Peptostreptococcus

gram-positive round or oval bacteria occurring singly or in long chains. Found as an normal flora in many species and humans.

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Peptostreptococcus anaerobius

isolated from abscesses in dogs and cats.

Peptostreptococcus heliotrinreductans

a ruminal organism thought to detoxify pyrrolizidine alkaloids in the rumen of sheep.

Peptostreptococcus indolicus

implicated in the etiology of mastitis in cattle, especially in summer mastitis.