Morphologic and genetic variability in the marine planktonic ciliate Laboea strobila Lohmann, 1908 (Ciliophora, Oligotrichia), with notes on its ontogenesis

The Journal of Eukaryotic Microbiology
Sabine AgathaAlfred Beran

Abstract

Laboea strobila Lohmann, 1908 is a conspicuous oligotrich ciliate in the marine plankton. In order to compare different populations, the morphology of specimens from the Mediterranean Sea, North Sea, and Irish Sea was investigated using live observation, protargol impregnation, and scanning electron microscopy. Furthermore, the PCR-amplified products of the SSrRNA gene from a monoclonal culture of L. strobila from the Mediterranean Sea were sequenced and aligned with sequences of other oligotrichs, including a population of L. strobila from the Atlantic coast of the USA. Finally, the data from the ecological literature were summarized and the cultivation methods were described. The SSrRNA gene sequences of the two distantly located L. strobila populations from the North Atlantic are identical. Likewise, the morphometrics of most populations so far investigated after protargol impregnation (i.e. from the North Atlantic) do not show obvious differences. In all computed phylogenetic trees, L. strobila groups with Strombidium species, forming a monophyletic taxon corresponding to the subclass Oligotrichia. These results are corroborated by the ontogenetic comparison. Since no type species was fixed for Laboea Lohmann, 1908, L. stro...Continue Reading

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Citations

Oct 9, 2012·The Journal of Eukaryotic Microbiology·John R DolanSun Young Kim
Dec 15, 2005·Zoology : Analysis of Complex Systems, ZACS·Sabine Agatha
Aug 11, 2016·The Journal of Eukaryotic Microbiology·Qianqian ZhangJun Gong

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Datasets Mentioned

BETA
AY143571
AY143570
AY143572
AJ310493
AF194410
AJ488910
AY143566
AJ310494
AJ488911
AY143560

Methods Mentioned

BETA
PCR

Software Mentioned

TreePuzzle

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