Читать книгу Snyder and Champness Molecular Genetics of Bacteria - Tina M. Henkin - Страница 236

So far, we have limited our discussion of protein transport to the mechanisms used by bacteria that contain an outer lipid bilayer membrane (commonly referred to as Gram-negative bacteria). However, a large group of bacteria, notably the Firmicutes and Actinobacteria, lack an outer membrane (and are often referred to as the Grampositive bacteria). Organisms in this group have evolved different types of secretion systems.