Not as simple as thought: How bacteria form membrane vesicles ... For example, microbiologists employ Gram staining to differentiate between bacteria that have a thick (Gram-positive) ...

Bacteria have traditionally been classified on the basis of the composition of their cell envelopes. For example, microbiologists employ Gram staining to differentiate between bacteria that have a ...

With delicate hues of purple and pink, a lab technique called gram staining has reliably characterized bacteria for more than a century. Yet many scientists are mistaken about why the vivid method ...