Micrococcus is a genus of spherical-shaped bacteria, characterized by their small size and the ability to form irregular clusters or pairs. Members of this genus are classified as gram-positive bacteria, meaning that they retain a violet color after the Gram staining procedure. Micrococci are typically non-motile and have a diameter ranging from 0.5 to 2 micrometers.
These bacteria are considered to be ubiquitous and can be found in various environments such as air, water, and soil. While they are generally harmless and part of the normal microflora on human skin, certain species of Micrococcus have been associated with opportunistic infections, particularly in immunocompromised individuals. In some cases, they may cause skin and soft tissue infections, as well as bloodstream, urinary tract, and respiratory infections.
The growth characteristics of micrococci are relatively versatile. They are facultative anaerobes, meaning they can survive and grow in both the presence and absence of oxygen. Additionally, they are catalase-positive, able to produce the enzyme catalase, which distinguishes them from other genera of bacteria.
In conclusion, Micrococcus is a genus of small spherical bacteria that typically form clusters or pairs. They are gram-positive, non-motile, and can be found in various environments. While usually harmless, some species can cause infections, particularly in immunocompromised individuals.
