Macrococcus | |
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Genus: | Macrococcus Kloos et al. 1998 |
Type species | |
M. equipercicus | |
Species | |
Macrococcus bovicus Contents |
Macrococcus is a genus of Gram-positive cocci belonging to the family Staphylococcaceae. The genus was created in 1998. [2]
The first recognised species in this genus (Macrococcus caseolyticus) was initially named Micrococcus caseolyticus by Evans in 1916. It was then renamed Staphylococcus caseolyticus by Schleifer et al in 1982. It received its current designation in 1998 by Kloos et al.
Members of the genus Macrococcus are Gram-positive, nonmotile, non-spore-forming cocci that are coagulase negative and catalase positive. They can be distinguished phenotypically from most staphylococci on the basis of their cellular morphology (they are 2.5 – 4.0 times larger in diameter compared to Staphylococcus aureus ) and their positive cytochrome c oxidase reaction. Species in this genus are resistant to bacitracin and lysozyme and sensitive to furazolidone. The DNA base content is 38–45 mol% G+C. The cell walls lack teichoic acid. They are usually unencapsulated.
The first genome of this genus was sequenced in 2009 [4]
This genus is the closest known relation of the genus Staphylococcus. Within Staphylococcus , the closest relations of Macrococcus appear to be the Staphylococcus sciuri group.
This genus is not known to cause human disease.
A methicillin resistance gene has been identified in this genus. [5] The significance of this discovery is not yet clear.
The name Macrococcus is a masculine Neo-Latin noun composed of the Greek adjective makros (μάκρος) meaning "large" [6] and the Neolatin masculine noun coccus intended to mean a coccus shaped bacterium, as it comes from the Greek masculine noun kokkos (κόκκος) meaning "berry", [7] consequently the noun Macrococcus, means "large coccus". [2]
The eymology of the epithet of the 8 species [3] contained in the genus are: [2] [8]
A coccus is any bacterium or archaeon that has a spherical, ovoid, or generally round shape. Bacteria are categorized based on their shapes into three classes: cocci (spherical-shaped), bacillus (rod-shaped) and spiral. Coccus refers to the shape of the bacteria, and can contain multiple genera, such as staphylococci or streptococci. Cocci can grow in pairs, chains, or clusters, depending on their orientation and attachment during cell division. In contrast to many bacilli-shaped bacteria, most cocci bacteria do not have flagella and are non-motile.
Staphylococcus is a genus of Gram-positive bacteria in the family Staphylococcaceae from the order Bacillales. Under the microscope, they appear spherical (cocci), and form in grape-like clusters. Staphylococcus species are facultative anaerobic organisms.
Thermococcus gammatolerans is an archaea extremophile and the most radiation-resistant organism known to exist.
Nosocomiicoccus is a genus of gram-positive cocci. The name is derived nosocomium - hospital; coccus from Greek noun kokkos - a coccus a grain, berry: Nosocomiicoccus - a coccus isolated in a hospital. The genus was erected in 2008. The genus is a member of the family Staphylococcaceae. A common feature of all members of this family is their osmo- and halotolerance - the ability to grow at high salt concentrations.
Thermoanaerobacter is a genus in the phylum Bacillota (Bacteria). Members of this genus are thermophilic and anaerobic, several of them were previously described as Clostridium species and members of the now obsolete genera Acetogenium and Thermobacteroides
Acidaminococcus is a genus in the phylum Bacillota (Bacteria), whose members are anaerobic diplococci that can use amino acids as the sole energy source for growth. Like other members of the class Negativicutes, they are gram-negative, despite being Bacillota, which are normally gram-positive.
Acidothermus cellulolyticus is a species of gram-variable bacteria. It is the only member of the genus Acidothermus and the family Acidothermaceae.
Actinoalloteichus is a genus in the phylum Actinomycetota (Bacteria).
Actinocorallia is a genus in the phylum Actinomycetota (Bacteria).
Actinophytocola is a genus in the phylum Actinomycetota (Bacteria).
Adhaeribacter is a genus in the phylum Bacteroidota (Bacteria).
Deferribacter is a genus in the phylum Deferribacterota (Bacteria).
Agrococcus is a genus in the phylum Actinomycetota (Bacteria).
Agromyces is a genus in the phylum Actinomycetota (Bacteria).
Algoriphagus is a genus in the phylum Bacteroidota (Bacteria).
Algibacter is a genus in the phylum Bacteroidota (Bacteria).
Alkalibacillus is a genus in the phylum Bacillota (Bacteria).
Croceicoccus is a genus in the phylum Pseudomonadota (Bacteria).
Staphylococcus vitulinus is a Gram-positive, coagulase-negative member of the bacterial genus Staphylococcus consisting of clustered cocci. The species was originally isolated from food and animals and was named Staphylococcus vitulus. The name was later changed to Staphylococcus vitulinus for correct Latin grammar.
Macrococcus canis is a Gram-positive bacterium from the genus of Macrococcus which has been isolated from the nose of a dog which had mucopurulent rhinitis in Switzerland.