Micrococcus

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Micrococcus

 

a genus of spherical (diameter, 1–2 μ), nonmotile, nonsporiferous, gram-positive bacteria that reproduce by division in two or three planes and are found singly or in irregular masses.

On solid nutrient media, micrococci form smooth, round colonies of white, yellow, or red. Certain species (for example, M. pyogenes) cause purulent diseases. Micrococci inhabit soil, fresh and salt waters, and food products. Some species develop in brines and cause the appearance of red spots on pickled fish.

References in periodicals archive ?
In this study, stainless steel particles in the knee did not appear to increase susceptibility to infection from injected micrococci but did make established micrococcal infections more persistent [22].
The crucial role of catheters in micrococcal bloodstream infections in cancer patients.
Briefly, extracted DNA was hydrolyzed with micrococcal nuclease, spleen phosphodiesterase, and nuclease P1.
Polynucleosomal synthesis of poly (ADP-ribose) causes chromatin unfolding as determined by micrococcal nuclease digestion.
schroeteri was only characterized on that occasion and is a new micrococcal species resistant to penicillins (2).
In the second stage this immune-selected chromatin bound to agarose is subjected to non-specific fragmentation either using sonication or mild micrococcal nuclease digestion.
The suspension was then adjusted until the amount of nucleic acid in 1 mL of the sample had an optical density of 100 ([A.sub.260] = 100) and digested with 12 X [10.sup.-2] units/[micro]L micrococcal nuclease (MNase) for 12 min at 37[degrees]C.