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An isolated mitochondrion fractured completely through its outer
membrane and exposing the P-fracture face of its inner membrane. Rows
of IMPs on this face (arrows) may be the F0
subcomplexes of the F1F0 ATP synthase. The holes
(arrowhead) are the entrances to the tubular cristae. I
proposed a model for how links between adjacent
F1F0 complexes might lead to tubulation of this
inner membrane (Allen, Protoplasma 189:1-8, 1995) and extended this to
tubular formation in the contractile vacuole of the 50 nm diameter
decorated spongiome tubules. EM taken on 5/11/88 by C. Schroeder with
Zeiss 10A TEM. Neg. 40,500X. Bar = 0.1µm. Published in Protoplasma
189:1-8, 1995.
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