grampozitívnym
Grampozitívnym is a term used in microbiology to describe bacteria that retain a primary stain (crystal violet) during the Gram staining procedure. This retention is due to the unique structure of their cell wall. Gram-positive bacteria have a thick peptidoglycan layer outside their cytoplasmic membrane. This thick layer traps the crystal violet-iodine complex, preventing it from being decolorized by the alcohol wash. In contrast, Gram-negative bacteria, which have a thinner peptidoglycan layer and an outer membrane, lose the crystal violet stain and are subsequently counterstained by safranin, appearing pink or red.
The Gram stain is a crucial differential staining technique used for classifying bacteria. The distinction between