Phytomastigophora: Volvocida: Polyblephaeridina: Carteriiidae
Chlorophyta: Chlorophyceae: Dunaliellales
Polytomella parva
Pringsheim 1955
Genus (Aragoa): Cell body ovoid or pyriform with conical or pointed posterior end;
4 equal-length flagella inserted at the base of a papilla; cells colorless; eyspot present or absent;
1-layered cysts common; 2 anterior contractile vacuoles; cell division by longitudinal fission;
sexual reproduction isogamous to form a 4-flagellate zygote (Illustrated Guide, 1985).
Species:
Cell body narrowly egg-shaped; a small papilla present; no eyespot (John et al. 2002).
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Polytomella parva Pringsheim 1955,
stock Sim-1, axenic culture with EM,
cell body μm long, μm wide,
cytoplasm gathered at anterior half of the cell body,
x 640, Near Chyokyu-ji (temple), Miyadera, Iruma city, Saitama Pref., Japan, May 2003 by Y. Tsukii
50 μm
100 μm
150 μm; x 400
Polytomella parva,
stock Sim-1, axenic culture with EM (June 9 to June 12, 2003, in a test tube),
cell body μm long, μm wide,
cytoplasm gathered at posterior half of the cell body,
x 640, Near Chyokyu-ji (temple), Miyadera, Iruma city, Saitama Pref., Japan, May 2003 by Y. Tsukii
Polytomella,
stock Sim-2?, axenic culture (February 4 to March 7, 2006),
cysts 10-13 μm in diam.,
x 400, x 640, Japan, 2006 by Y. Tsukii
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