Encyclopedia > Gram-positive

  Article Content

Gram-positive

Bacteria that are gram-positive are stained dark blue or violet by Gram staining, in contrast to Gram-negative bacteria. The stain is caused by a higher amount of peptidoglycan in the cell wall, which typically lacks the secondary membrane and lipopolysaccharide[?] layer found in other bacteria.

The largest group of Gram-positive bacteria are the Firmicutes; well-known genera include Bacillus, Listeria[?], Staphylococcus, Streptococcus, Enterococcus, and Clostridium[?]. Other major groups include the Actinobacteria, Planctomycetes[?], Deinococci[?], and Thermotogae[?].



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
1904

... (+ 1964) February 11 - Henry LaBouisse[?], head of UNICEF (1965-1979) February 11 - Sir Keith Holyoake, New Zealand Prime Minister (1960-1972) February 20 - ...

 
 
 
This page was created in 36.2 ms