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| Halteria fixed in cacodylate-buffered fixative and stained. The round bodies (ves), possibly pigment granules, which were transparent in Fig. 1a are electron-opaque following this protocol. The alveoli (al) are flattened and inconspicuous. There is little evidence of an epiplasm. m, mitochondrion; per, peroxisome; fv, food vacuole containing bacteria; mac, macronucleus. EM taken on 11/8/68 by R. Allen with Philips 300 TEM. Neg. 12,500X. Bar = 0.5µm. |
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