Mycoplasma is the smallest (0.2 - 0.8 micrometers) free-living bacteria (light microscopy cannot detect it) that can pass through some filters (0.45-μm-pore-size) used to remove bacteria. It has the...
Month: March 2019
Klebsiella pneumoniae is a Gram-negative rod-shaped bacteria of the genus Klebsiella and the family Enterobacteriaceae. They are members of the normal intestinal flora of humans...
Superantigens are microbial peptides that can polyclonally activate a large fraction of T cells (up to 20%). They escape normal antigen processing by antigen presenting cells (APCs) and can directly...
Proteus are Gram-negative rod-shaped bacteria of the family Enterobacteriaceae. They are widely distributed in nature and also occur as normal intestinal flora of humans. An opportunistic...
Gram staining requires the use of different chemical reagents which can be purchased in ready-to-use forms from commercial suppliers or can be prepared at the laboratory by mixing different chemicals...
Bacteria are often preserved in microbiology laboratories for many purposes such as to re-examine or characterize further or to send to a national reference laboratory for confirmation etc. The...