Chlorophyceae: Zygnematales: Mesotaeniaceae or Gonatozygaceae
(Gamophyceae: Zygnematales: Desmidiaceae)
Gonatozygon brebissonii
de Bary
Genus: Two chloroplasts plate-like or slightly spiralled;
a nucleus centrally located between the chloroplasts; mostly unicells, filaments rare
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Cell body constricted near the both ends, (68-160)-288 μm long,
(7-8)-10.8 μm wide, L/W = 10-16,
cell wall densely granulated (Illustrations of The Japanese Fresh-water Algae, 1977).
|
Gonatozygon brebissonii de Bary,
cell body 107 μm long, 6 μm wide, L/W=17.8,
x 640, rice field, Shimo-muneoka, Shiki city, Saitama Pref., Japan, October 24, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
* Gonatozygon brebissonii var. echinatum Krieger:
cell body cylindrical 96-140 μm long,
5-(5.5-7.5) μm wide,
L/W = 15-20, cell wall covered with many fine hairs, both ends slightly swelled
(Illustrations of The Japanese Fresh-water Algae, 1977).
Gonatozygon brebissonii Wolle var. brebissonii:
cell body cylindrical 177-(180)-300 μm long,
10.5-15-(15.5) μm wide,
L/W = 12-20, cell wall covered with many hairly spines, both ends slightly swelled
(Illustrations of The Japanese Fresh-water Algae, 1977).
Gonatozygon monotaenium de Bary:
cell body cylindrical (74-145)-284 μm long,
7.5-(9)-11.5 μm wide,
L/W = 10-25, cell wall with many granules, both ends slightly swelled
(Illustrations of The Japanese Fresh-water Algae, 1977).
Please click on images for viewing enlarged.
Copyright
Protist Information Server