A new marine ciliate, Metaurostylopsis antarctica nov. spec. (Ciliophora, Urostylida) from the Antarctic Ocean

• Authors: Jae-Ho JUNG , Ye-Seul Baek , Sanghee Kim , Han-Gu Choi , Gi-Sik Min
• Languages of publication: PL

Abstracts

PL

In this study, a new marine urostylid ciliate, Metaurostylopsis antarctica nov. spec. collected from the Antarctic Ocean was investigated using morphological, morphometrical, and molecular methods. Metaurostylopsis antarctica nov. spec. is characterized as follows: slender to ellipsoid form in body shape; two types of cortical granules, ellipsoid large one (type I, yellow-green, 1.5 × 1 μm) in rows along dorsal kineties and cirri, circular small one (type II, colourless, 0.3 μm in diameter) scattered throughout whole body; 19–24 adoral membranelles, 4 frontal cirri, 2–5 frontoterminal cirri, 1 buccal and 2 transverse cirri; 3–5 midventral pairs, 10–15 cirri of midventral row; 1 right and 2 left marginal rows; 3 dorsal kineties; about 43 macronuclear nodules. This new species mainly differs from the congeners by the number of marginal rows (1 vs. 3 or more on right side; 2 vs. 3 or more on left side). In addition, proter’s oral primordium  developed on the right side of the oral cavity (vs. in center of oral cavity), and the rightmost anlage splits into two parts, nam ely, the frontoterminal cirri and a transverse cirrus (vs. only frontoterminal cirri). Inter-specific dissimilarities of the SSU rRNA gene between the congeners range from 3.3 to 4.4%.

Keywords

PL

Antarctic Ocean, marine ciliate, Metaurostylopsis antarctica, infraciliature, morphogenesis, SSU rRNA

• Publisher: Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
• Journal: Acta Protozoologica
• Year: 2011
• Volume: 50
• Issue: 4

Dates

published

2011

online

27 - 08 - 2015

Contributors

author

Jae-Ho JUNG

author

Ye-Seul Baek

author

Sanghee Kim

author

Han-Gu Choi

author

Gi-Sik Min