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Nocardia is a genus of weakly staining Gram-positive, catalase-positive, rod-shaped bacteria. It forms partially acid-fast beaded branching filaments (appearing similar to fungi, but being truly bacteria). It contains a total of 85 species. Some species are nonpathogenic, while others are responsible for nocardiosis. [3]
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.
Gram-positive, nonmotile and moderate to long acid-fast rods. Commonly found in tap water and soil. Casual resident in human sputum and gastric lavage specimens. Colony characteristics. Smooth, with yellow or orange scotochromogenic colonies. Even though they are scotochromogenic pigment is intensified by growing in continuous light. Physiology
A bacillus (pl.: bacilli), also called a bacilliform bacterium or often just a rod (when the context makes the sense clear), is a rod-shaped bacterium or archaeon. Bacilli are found in many different taxonomic groups of bacteria. However, the name Bacillus, capitalized and italicized, refers to a specific genus of bacteria.
This species is a gram-positive, nonmotile and strongly acid-fast rods. Colony characteristics Their ... sputum in Madrid.
Gram-positive, nonmotile, mostly strongly acid-fast rods, 2.0-2.5 μm long and 0.3 to 0.5 μm wide. Colony characteristics. Flat, rough, and undulated yellow, nonphotochromogenic colonies; Physiology. Rapid growth occurs within 5 days at 25 °C, 30 °C and 37 °C, but not at 45 °C on Löwenstein-Jensen medium and Middlebrook 7H10 agar.
Micrograph of a gram-positive coccus and a gram-negative rod. A Gram stain of mixed Staphylococcus aureus (S. aureus ATCC 25923, gram-positive cocci, in purple) and Escherichia coli (E. coli ATCC 11775, gram-negative bacilli, in red), the most common Gram stain reference bacteria
The encapsulated, Gram-positive, coccoid bacteria have a distinctive morphology on Gram stain, lancet-shaped diplococci. They have a polysaccharide capsule that acts as a virulence factor for the organism; more than 100 different serotypes are known, and these types differ in virulence, prevalence, and extent of drug resistance.