Tetrahymena rostrata ( Kahl, 1926 ) Corliss, 1952
publication ID |
https://doi.org/ 10.12651/JSR.2021.10.3.301 |
persistent identifier |
https://treatment.plazi.org/id/D64F9C64-9007-FFE1-2203-FB63A636F91B |
treatment provided by |
Felipe (2024-07-31 00:08:52, last updated 2024-07-31 00:16:40) |
scientific name |
Tetrahymena rostrata ( Kahl, 1926 ) Corliss, 1952 |
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18. Tetrahymena rostrata ( Kahl, 1926) Corliss, 1952 View in CoL
( Fig. 17 View Fig )
Material examined. Freshwater sample collected from a temporary puddle, after a rainfall, on a footpath behind
Gangneung-Wonju National University , Gangneung, Korea (37°46 ʹ 30 ʺ N, 128°51 ʹ 46.8 ʺ E) on 25 June 2020 GoogleMaps .
Diagnosis. Length in vivo 35-50 × 20-25 μm; body has two shapes, slenderly ellipsoid theronts and broadly ellipsoid trophonts; pellicle indented at base of cilia; cytoplasm colorless filled with food vacuoles contain bacte- ria; 1 or 2 macronuclear nodules with 1 micronucleus at mid-body; invariably 25 somatic ciliary rows including 2 postoral rows; oral apparatus consists of semicircular dikinetidal paroral right of oral opening and 3 membranelles on left wall of buccal cavity; a single subterminal contractile vacuole with 2 excretory pores; a single caudal cilium.
Distribution. Cosmopolitan.
Remarks. The Korean population of T. rostrata agrees with other populations in the body size, shape and habitat but differs mainly in the smaller body size and the lower number of somatic ciliary rows (invariably 25 vs. 26-31 from Foissner (1987; 2016) and 29-44 from Segade et al. (2009)). This species is also very similar to T. setosa (Schewiakoff, 1893) McCoy, 1975 in the overall shape and size but differs significantly in the formation of rest- ing cysts (present vs. absent) ( Kahl, 1926; 1931; Corliss, 1952; 1973; Foissner, 1987; 2016; Segade et al., 2009; 2015).
Voucher slides. Two slides with protargol-impregnated specimens were deposited at the Nakdonggang National Institute of Biological Resources (NNIBRPR20133, NNIBRPR20134).
Corliss, J. O. 1952. Le cycle autogamique de Tetrahymena rostrata. Paris 235: 399 - 402.
Corliss, J. O. 1973. History, taxonomy, ecology and evolution of species of Tetrahymena. In: A. M. Elliott (ed.), Biology of Tetrahymena. Dowden, Hutchinson, & Ross, Stroudsburg, Pa: 1 - 55.
Foissner, W. 1987. Neue terrestrische und limnische Ciliaten (Protozoa, Ciliophora) aus Osterreich und Deutschland. Sitzungsberichte der Akademie der Wissenschaften, Wien 195: 217 - 268.
Foissner, W. 2016. Terrestrial and semiterrestrial ciliates (Protozoa, Ciliophora) from Venezuela and Galapagos. Denisia 35: 1 - 912.
Kahl, A. 1926. Neue und wenig bekannte Formen der holotrichen und heterotrichen Ciliaten. Archiv fur Protis- tenkunde 55: 197 - 438.
Kahl, A. 1931. Urtiere oder Protozoa I: Wimpertiere oder Ciliata (Infusoria) 2. Holotricha ausser den im 1. Teil behandelten Prostomata. In: F. Dahl (ed.), Die Tierwelt Deutschlands und der angrenzenden Meeresteile. Gustav Fischer Verlag, Jena, T. 21: 181 - 398.
Segade, P., C. P. Kher, D. H. Lynn and R. Iglesias. 2009. Morphological and molecular characterization of renal ciliates infecting farmed snails in Spain. Parasitology 136: 771 - 782.
Segade, P., N. Garcia, J. M. Garcia Estevez, C. Arias and R. Iglesias. 2015. Encystment / excystment response and se- rotypic variation in the gastropod parasite Tetrahymena rostrata (Ciliophora, Tetrahymenidae). Parasitology Research 115: 771 - 777.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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