Fig. 1: Model of Streptomyces growth and cryo-ETs of isolated S. coelicolor sacculi.
From: Teichoic acids anchor distinct cell wall lamellae in an apically growing bacterium
The cell wall of bacteria is incorporated either at the lateral sides via the MreB filaments or at the apex driven by DivIVA. These processes are termed lateral and polar cell-wall growth, respectively (a). The growth and development of Streptomyces coelicolor spores in liquid medium, where the spores germinate, aggregate and form dense pellets facilitated by an extracellular matrix (b). c A cryo-electron tomography slice of the tip region of a S. coelicolor sacculus with insets (XY plane) displaying differences in cell-wall structure in the apical (e) and subapical regions (f), as depicted in the schematic (d). Scale bar c 100 nm, scale bars insets e, f 20 nm.
