Ripella
Ripella Smirnov et al., 2007 (ref. ID; 6796 original paper)
[ref. ID; 6796]
Diagnosis; Fan-shaped, spatulate, or discoid amoebae, usually small and rapidly moving, without any ridges or waves on the dorsal surface and always with smooth outlines. 18S rRNA gene is markedly shorter than in Vannella and most other Amoebozoa (approximately 1700 bp long) due to a number of deletions at the region 660-836 bp (relative to Vannella anglica). A characteristic signature occurs in the 130-189 bp region of 18S rRNA gene. (ref. ID; 6796)
Etymology; Combination of the stem rip- of ripis (Gk - a fan for raising a flame) and -ella (Latin diminutive suffix). (ref. ID; 6796)
Type species; Ripella platypodia (Glaeser, 1912) comb. n. (ref. ID; 6796)
Type strain; CCAP 1589/2 (ref. ID; 6796)
- Ripella platypodia (Glaeser, 1912) comb. nov. (ref. ID; 6796 redescribed paper)
Syn; Originally Amoeba platypodia and later Vannella platypodia (ref. ID; 6796)
Ripella platypodia (Glaeser, 1912) comb. nov. (ref. ID; 6796 redescribed paper)
Synonym
Originally Amoeba platypodia and later Vannella platypodia (ref. ID; 6796)
Descriptions
Locomotive form fan-shaped, often with pronounced tail or discoid. Anterior margin smooth and rounded; posterior margin often triangular. Frontal hyaloplasm occupies about 2/3 of the total cell area or even more. Greatest dimension of the locomotive form 10-30 um (average 16-21 um). Single vesicular nucleus 3.4-5.0 um in diameter with rounded central nucleolus. Floating form with long tapering pseudopodia far exceeding the diameter of the central mass. Cell surface is covered with glycostyles about 110 nm in length; simple, filaments present among them. Description: Page (1968). Illustrations: Page (1976, 1988, 1991; Page and Blakey 1979 - cell surface); Figures 63-68. (ref. ID; 6796)
Habitats
Freshwater. (ref. ID; 6796)
Available culture
CCAP 1589/2 by F.C. Page. Complete 18S rRNA gene sequences (GenBank numbers EF051184 - EF051185EF051184EF051185) were obtained in the present study. (ref. ID; 6796)