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Coccobacillus: Oval and similar to coccus (circular shaped bacterium). [22] There is no connection between the shape of a bacterium and its color upon Gram staining; there are both gram-positive rods and gram-negative rods. MacConkey agar can be used to distinguish among gram-negative bacilli such as E. coli and salmonella. [23]
It is a facultative anaerobic, Gram-positive rod-shaped or elliptical coccobacillus found as single elements or in pairs or short chains. [2] It is typically isolated from 80% of women with bacterial vaginosis and it is implicated in treatment failures. [3] [4] Invasive infections such as bacteremia have been reported. [5]
Cellulosimicrobium cellulans is a pleomorphic Gram-positive bacteria. Initially, C.cellulans are rod-shaped bacilli that become more coccoid as the bacteria grows and matures. [ 11 ] C. cellulans may also form branches or filaments, allowing the bacteria to better adhere to structures (including implanted devices and catheters) and allow for ...
Rickettsia rickettsii is a Gram-negative, intracellular, cocco-bacillus bacterium that was first discovered in 1902. [1] Having a reduced genome, the bacterium harvests nutrients from its host cell to carry out respiration, making it an organo-heterotroph.
Gram stain of cells from the vagina (the same magnification) with normal bacterial flora (top) and the bacteria that cause vaginosis (bottom). A variety of diagnosis techniques are currently available for identifying Gardnerella vaginalis such as the OSOM BV Blue assay, FemExam cards and nucleic acid amplification tests (NAATs), resulting in the determination of ongoing BV.
Violet-stained gram-positive cocci and pink-stained gram-negative bacilli. In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall.
L. pneumophila is a coccobacillus. [9] It is a Gram-negative, aerobic bacterium that is non-fermentative.It is oxidase- and catalase-positive. [10] L. pneumophila colony morphology is gray-white with a textured, cut-glass appearance; it also requires cysteine and iron to thrive. [11]
Gram-positive and nonmotile acid-fast coccobacilli. Does not form spores, capsules or aerial hyphae. Colony characteristics. Dysgonic and nonphotochromogenic, pale yellow colonies on Löwenstein-Jensen agar. Physiology. Slow growth on Löwenstein-Jensen medium at temperatures between 22 and 31 °C (72 and 88 °F) after 2–3 weeks.