| reproduction and morphogenesis of rickettsiella chironomi, an unusual intracellular procaryotic parasite of midge larvae. | the reproduction and morphogenesis of rickettsiella chironomi, an unusual procaryotic parasite of midge larvae, was studied with electron microscopy. the morphogenic cycle was similar to that found in chlamydia and consisted of four major cell types: (i) medium-sized spherical initial bodies (ca. 1 micrometers in diameter), (ii) large spherical initial bodies (1.5-2 micrometers), (iii) spherical intermediate bodies (600 to 700 nm), and (iv) disk-shaped elementary bodies (60 x 600 nm). the primar ... | 1980 | 7204340 |