Figure 9

Imago of stage W3. Overview (A) and detailed images of different optical sections (B - E) of the midgut of a worker several months of age (W3) by confocal laser scanning microscopy (for further information regarding the composition of the figure see legend of Fig. 1). The proportion of bacteria-free cells is strongly increased, but still there are many bacteriocytes present. Green label: The Blochmannia specific probe Bfl172-FITC; red label: SYTO Orange 83. The scale bars correspond to 220 μM (A) and 35 μM (B - E), respectively.