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Name derivation: |
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Stentor -- "A grecian herald with a strong voice who yelled as loud as fifty men together" (Jaeger 1944).
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Classification: |
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Order Heterotrichida; Family Stentoridae At least 20 species are recognized. Based on SS rRNA gene sequencing of three species, the genus Stentor is judged to be monophyletic (Gong et al. 2007). |
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Morphology: |
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‘Horn’ or ‘Cone’-shaped ciliate. Classified as a heterotrich polyhymenophora "with somatic cilia arranged in "kineties " (rows of fine cilia) (Patterson 1996). Cilia cover the entire cell. Multinucleate. Asexual reproduction is by binary fission. Sexual reproduction is by conjugation, fusing of two cells near the anterior end.
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Similar genera: |
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Habitat: |
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Freshwater lakes and streams. A large population of highly pigmented individuals occurred in ‘No Bottom Bog’ (a.k.a. ‘Smith Well Bog’), Dover NH an acidic and humic (highly colored with CDOM – colored dissolved organic matter) bog. Prey includes microalgae, bacteria, small fotifers, and flagellates.
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References: |
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Gong, Y.C., H.H. Yu, F.Y. Zhu, and W.S. Feng 2007. Molecular phylogeny of Stentor (Ciliophora: Heterotrichea) based on small subunit ribosomal RNA sequences. J. Eukaryot. Microbiol. 54(1):45-48. Jaeger, E.C. 1944. A source-book of biological names and terms. C.C. Thomas, Publisher. (323 pp.)
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