1887

Abstract

The morphology and morphogenesis of a soil hypotrichous ciliate, sp. nov., isolated from northern China, were investigated. measures about 75–210×25–60 µm , with an elongate and flexible body. It possesses one right marginal row, two to four left marginal rows and three dorsal kineties. The main morphogenetic features of are: (i) the oral primordium originates ; (ii) anlage IV of the opisthe originates from parental frontoventral row V, anlage V originates , and anlage VI forms from frontoventral row VI; and (iii) anlage I of the proter originates from the anterior portion of the parental paroral, anlage II originates from the buccal cirrus, anlage III originates from the parabuccal cirri, anlage IV originates from parental frontoventral row IV and anlage V forms from the anterior of parental frontoventral row VI. The morphology of an edaphic population of another species of the genus , (Gelei 1954) Eigner 1995, was also investigated. This work also provides the first record of SSU rRNA gene sequences for species of the genus . Molecular phylogenetic analysis suggests that is not monophyletic, and its position is poorly resolved due to weak phylogenetic signal of the 18S marker in the Stichotrichida.

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2014-11-01
2019-11-13
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