Eine oder zwei Membranen bei Prokaryoten: Was war zuerst da?


From a classical perspective, the bacterial cell wall is divided into Grampositive
and Gram-negative. It was shown recently that several Grampositive
bacterial groups (monoderm) might have developed from diderm
bacteria by losing the outer membrane. Within the archaea, recent
studies also describe diderm cell walls via high-resolution electron
microscopy. A rising number of structural information on uncultivated
microorganisms sheds new light on potential cell wall architectures of the
first living cells.