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Ultrastructure and development of the amoebo-flagellate cells of the protostelidProtosporangium articulatum
Authors:F. W. Spiegel  J. Feldman  W. E. Bennett
Affiliation:(1) Department of Botany and Microbiology, University of Arkansas, SE 401, 72701 Fayetteville, AR, USA;(2) Present address: Department of Biology, University of North Carolina, 27514 Chapel Hill, NC, USA
Abstract:Summary Amoebo-flagellate cells develop upon spore germination in the protostelidProtosporangium articulatum. The germling may emerge flagellate or as an amoeba. In either case the cell undergoes mitosis within an hour of germination. The spindle is open and centric, and typically has several pairs of kinetosomes at the poles. During telophase, the kinetosomes are found at the surface of the cell and flagella and flagellar rootlets begin to develop. Some flagella remain in close association with the nucleus, the nucleus-associated flagella; others are located away from the nucleus, the supernumerary flagella. The flagellar apparatus is identical for both nucleus-associated flagella and supernumerary flagella. However, only the nucleus-associated flagella are able to generate the jerking, helical swim typical of amoebo-flagellates with a swarm cell-like morphology.
Keywords:Amoebo-flagellate  Flagellar development  Flagellar apparatus  Flagellar motility  Mycetozoan
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