violet is the colour of gram positive bacteria.
what is the colour of gram positive bacteria?
violet
after decolorization, the gram-positive cell remains purple and the gram-negative cell loses its purple color. counterstain, which is usually positively charged safranin or basic fuchsine, is applied last to give decolorized gram-negative bacteria a pink or red color. both gram-positive bacteria and gram-negative bacteria pick up the counterstain. the counterstain, however, is unseen on gram-positive bacteria because of the darker crystal violet stain.





























section::::examples.





























section::::examples.:gram-positive bacteria.





























gram-positive bacteria generally have a single membrane ("monoderm") surrounded by a thick peptidoglycan.
gram stain
most well studied are the tailocins of "pseudomonas aeruginosa". they can be further subdivided into r-type and f-type pyocins.





























section::::classification.:from gram positive bacteria.





























bacteriocins from gram positive bacteria are typically classified into class i, class iia/b/c, and class iii.





























section::::classification.:from gram positive bacteria.:class i bacteriocins.





























the class i bacteriocins are small peptide inhibitors and include nisin and other lantibiotics.





























section::::classification.:from gram positive bacteria.:class ii bacteriocins.
bacteriocin