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| Some tubules near a contractile vacuole appear to be decorated with pegs (arrows) similar to the decorated spongiome of the CV of Paramecium. In Paramecium these pegs are known to be V-type proton pumps (V-ATPases). EM taken on 3/2/69 by R. Allen with Philips 300 TEM. Neg. 12,500X. Bar = 0.5µm. |
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