The Enterobacteriaceae family contains a large number of genera that are biochemically and genetically related to one another. Taxonomically, the Enterobacteriaceae family currently has 53 genera and...
Tag: Gram Negative Rods
Gram stain is the most important staining procedure in Microbiology. Most bacteria can be broadly classified as Gram-positive or Gram-negative. Gram-positive bacteria stain purple, whereas...
Each letter in "IMViC" stands for one of these tests. "I" is for indole; "M" is for methyl red; "V" is for Voges-Proskauer, and "C" is for citrate. Lowercase "i" is added for ease of...
Campylobacter usually causes diarrhea (often bloody). It is the most common cause of gastroenteritis worldwide, enterocolitis, especially in children. It causes systemic infection (rarely) in...
The shape of a bacterium is determined by its rigid cell wall. Bacteria that lack a cell wall (Mycoplasma and L-forms) display a great diversity of unusual shapes. Bacteria having various shapes are...
Lipopolysaccharide (LPS) layer also called the outer membrane is the outermost layer present only in the cell wall of gram-negative bacteria. Braun’s lipoprotein tightly links this outer...