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Bacillus megaterium cells stained with Sudan Black B and safranin. Bacillus megaterium is a rod-like, Gram-positive, mainly aerobic, spore forming bacterium found in widely diverse habitats. [1][2] It has a cell length up to 100 μm and a diameter of 0.1 μm, which is quite large for bacteria. [3] The cells often occur in pairs and chains, [1 ...
Priestia is a genus of mostly Gram-positive (P. flexa stains Gram-variable and P. koreensis stains Gram-negative), rod-shaped bacteria in the family Bacillaceae from the order Bacillales. [ 1 ][ 2 ] The type species of this genus is Priestia megaterium.[ 3 ] Members of Priestia are previously species belonging to Bacillus, a genus that has been ...
Binomial name. Bacillus licheniformis. (Weigmann 1898) Chester 1901 [1] Bacillus licheniformis is a bacterium commonly found in the soil. It is found on bird feathers, especially chest and back plumage, and most often in ground-dwelling birds (like sparrows) and aquatic species (like ducks). It is a gram-positive, mesophilic bacterium.
Gram staining is a bacteriological laboratory technique [7] used to differentiate bacterial species into two large groups (gram-positive and gram-negative) based on the physical properties of their cell walls. [8][page needed] Gram staining can also be used to diagnose a fungal infection. [1]
The bacterial capsule is a large structure common to many bacteria. [1] It is a polysaccharide layer that lies outside the cell envelope, and is thus deemed part of the outer envelope of a bacterial cell. It is a well-organized layer, not easily washed off, and it can be the cause of various diseases. [2][3]
Bacillus (Latin "stick") is a genus of Gram-positive, rod-shaped bacteria, a member of the phylum Bacillota, with 266 named species. The term is also used to describe the shape (rod) of other so-shaped bacteria; and the plural Bacilli is the name of the class of bacteria to which this genus belongs. Bacillus species can be either obligate ...