Gram-negative cells, such as E. coli, have a thin peptidoglycan layer sandwiched between a porous outer membrane and an inner membrane. In this simplified diagram of gram staining, bacterial cells ...

Analyzing the gene activity of every single bacterial cell in a colony? A new technique from Würzburg can do this much more efficiently than other methods. Not all individuals in a population of ...

What can? Gram's stain experiment pointed toward some sort of difference in the structures of various bacterial cells. However, it was not until the early 1950s that scientists started to ...