acidifying food vacuole

Description:

Quick-freeze deep-etch images show a more three dimensional view of acidosomes surrounding a phagosome. Acidosomes are unique in that they contain indentations of their membrane (arrowheads). The lumen (luac) has a honeycombed appearance, also unique to these vesicles. Their E-face (Eac) is almost free of IMPs while their P-face (Pac) has many large particles which leave pits in the E-face. Acidosomes maintain a close association with the phagosome membrane. Edv, E-face of phagosome. EM taken on 5/26/92 by R. Allen with Zeiss 10A TEM. Neg. 9,780X. Bar = 0.5 microns. This image is available in Richard Allen's collection.