TY - JOUR
TI - A new marine ciliate, Metaurostylopsis antarctica nov. spec. (Ciliophora, Urostylida) from the Antarctic Ocean
AU - Jung, Jae-Ho
AU - Baek, Ye-Seul
AU - Kim, Sanghee
AU - Choi, Han-Gu
AU - Min, Gi-Sik
TI - A new marine ciliate, Metaurostylopsis antarctica nov. spec. (Ciliophora, Urostylida) from the Antarctic Ocean
AB - 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%.
VL - 2011
IS - Volume 50, Issue 4
PY - 2011
SN - 0065-1583
C1 - 1689-0027
SP - 289
EP - 300
DO - 10.4467/16890027AP.11.026.0063
UR - https://ejournals.eu/en/journal/acta-protozoologica/article/a-new-marine-ciliate-metaurostylopsis-antarctica-nov-spec-ciliophora-urostylida-from-the-antarctic-ocean
KW - Metaurostylopsis antarctica
KW - infraciliature
KW - morphogenesis
KW - SSU rRNA
KW - Antarctic Ocean
KW - marine ciliate