Description of Metabakuella bimarginata sp. n., and key to the ciliate subfamily Bakuellinae Jankowski, 1979

Authors: Franco, C., Esteban, G.F. and Téllez, C.

Journal: Acta Protozoologica

Volume: 35

Issue: 4

Pages: 321-330

ISSN: 0065-1583

Abstract:

The stichotrich ciliate Metabakuella bimarginata sp. n. was isolated from the sandy sediment of Manzanares stream in Guadarrama, near Madrid (Spain). Its morphology and infraciliature were studied in vivo and in silver carbonate and protargol impregnated specimens. The organism measures about 225 x 85 μm and has 4-6 enlarged frontal cirri, one row of 5-8 buccal cirri, 2 frontoterminal cirri, 13-18 pairs of midventral cirri at the anterior part of the cell, 2 marginal rows at each side, 8-11 transverse cirri, 3 dorsal kineties, more than 100 macronuclear fragments, and 4-12 micronuclei. The anterior part of the midventral cirri is a single row of 3 cirri that curves to the left. This single row together with the frontal cirri forms a double crown. The midventral cirri in the posterior part of the cell form 4-7 obliquely arranged rows. Some macronuclear fragments in wild forms of M. bimarginata sp. n. bear endonuclear bacteria of unknown identity. The obliquely arranged rows of midventral cirri in the posterior half of the cell, the number of marginal rows, and the double crown formed by the frontal cirri, are the typical characteristics of the genus Metabakuella. We include this genus in the subfamily Bakuellinae Jankowski, 1979, within the family Holostichidae Faure-Fremiet, 1961. A comparison of the genera included in the subfamily Bakuellinae along with a key for the genera are presented here.

Source: Scopus

Description of Metabakuella bimarginata sp n, and key to the ciliate subfamily Bakuellinae Jankowski, 1979

Authors: Franco, C., Esteban, G.F. and Tellez, C.

Journal: ACTA PROTOZOOLOGICA

Volume: 35

Issue: 4

Pages: 321-330

eISSN: 1689-0027

ISSN: 0065-1583

Source: Web of Science (Lite)

Description of Metabakuella bimarginata sp. n., and key to the ciliate subfamily Bakuellinae Jankowski, 1979

Authors: Franco, C., Esteban, G.F. and Tellez, C.

Journal: ACTA PROTOZOOLOGICA

Volume: 35

Issue: 4

Pages: 321-330

ISSN: 0065-1583

Source: Manual

Preferred by: Genoveva Esteban