The Micrococcaceae The family Micrococcaceae contains gram-positive cocci, 0.5-2.5 μm in diameter, that divide in more than one plane to form regular or irregular clusters of cells. All are aerobic or facultatively anaerobic. The peptidoglycan di-amino acid is L-lysine. The three most important genera are: Micrococcus Staphylococcus Streptococcus
The Micrococcaceae The family Micrococcaceae contains gram-positive cocci, 0.5-2.5 μm in diameter, that divide in more than one plane to form regular or irregular clusters of cells. All are aerobic or facultatively anaerobic. The peptidoglycan di-amino acid is L-lysine. The three most important genera are: Micrococcus Staphylococcus Streptococcus
Micrococcus – aerobic, gram-positive, catalase positive, cell arranges mainly in pairs, tetrads, or irregular clusters, nonmotile. They are often yellow, orange or red in colour
Micrococcus – aerobic, gram-positive, catalase positive, cell arranges mainly in pairs, tetrads, or irregular clusters, nonmotile. They are often yellow, orange or red in colour
Staphylococcus - facultatively anaerobic, grampositive, usually form irregular clusters, nonmotile, catalase positive but oxidase negative, ferment glucose anaerobically. staphylococci staphylococci
Staphylococcus - facultatively anaerobic, grampositive, usually form irregular clusters, nonmotile, catalase positive but oxidase negative, ferment glucose anaerobically. staphylococci staphylococci
Streptococcus - facultatively anaerobic or microaerophilic, catalase negative, gram-positive, Cell arranges in pairs or chains, usually nonmotile, A few species are anaerobic rather than facultative
Streptococcus - facultatively anaerobic or microaerophilic, catalase negative, gram-positive, Cell arranges in pairs or chains, usually nonmotile, A few species are anaerobic rather than facultative
Bacilli divide only across their short axis, so there are fewer groupings of bacilli than of cocci. Rod-shaped bacteria Diplobacilli streptobacilli Single bacillus Coccobacillus
Bacilli divide only across their short axis, so there are fewer groupings of bacilli than of cocci. Rod-shaped bacteria Diplobacilli streptobacilli Single bacillus Coccobacillus