. Electron-microscopic structure of protozoa . Text-figure 11. Diagrammatic reconstruction of the pellicle of Opalina. fl, flagella; p, plasma membrane; , peripheral fibrils of flagellum; , central fibrils of fiagellum; , longitudinal ribs formed by folds of cell membrane over , fibrils of the pellicular ribs; , cylindrical extension from , axial granule at top of bl., kinetosome; , fibrils composing band comparable in position to kinetodesma of ciliates. From Noirot-Timothee, 1959. of ribs may be reduced by fusion near the posterior tip of the cell. Ribs are about
. Electron-microscopic structure of protozoa . Text-figure 11. Diagrammatic reconstruction of the pellicle of Opalina. fl, flagella; p, plasma membrane; , peripheral fibrils of flagellum; , central fibrils of fiagellum; , longitudinal ribs formed by folds of cell membrane over , fibrils of the pellicular ribs; , cylindrical extension from , axial granule at top of bl., kinetosome; , fibrils composing band comparable in position to kinetodesma of ciliates. From Noirot-Timothee, 1959. of ribs may be reduced by fusion near the posterior tip of the cell. Ribs are about 50m/* in thickness, about 600m/x high, and separated from adjacent ribs by grooves about lOOm^ wide. Each rib con- sists of a fold of the cell membrane enclosing a single row of 20 to 25 parallel, longitudinal, tubular fibers about 17m/z, in diameter, embedded in a structureless matrix.
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Photo credit: © The Bookworm Collection / Alamy / Afripics
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
