1887

Abstract

The morphology, infraciliature and silverline system of two marine , sp. nov. and sp. nov., isolated from seawater near Qingdao, China, were investigated. is characterized by having conspicuous dorsal ridges, a single marginal cirrus and a silverline system of the double-I type. is an extremely small form (only about 35 μm long) with 6–7 dorsal kineties and a silverline system of the double- type. Small subunit (SSU) rRNA-based phylogenetic trees were constructed with three different methods and these firmly demonstrated that the novel species represent two distinct phylogenetic lineages within the genus , branching as a sister group to all other sequenced congeners. In addition, the SSU rRNA gene of another rare, morphologically similar form, , was sequenced. This revealed the phylogenetic position of to be basal to one of the major groups of rather than close to

Loading

Article metrics loading...

/content/journal/ijsem/10.1099/ijs.0.012120-0
2010-05-01
2019-10-15
Loading full text...

Full text loading...

/deliver/fulltext/ijsem/60/5/1241.html?itemId=/content/journal/ijsem/10.1099/ijs.0.012120-0&mimeType=html&fmt=ahah

References

  1. Agamaliev, F. G. ( 1967; ). Faune des ciliés mésopsammiques de la côte ouest de la mer Caspienne. Cah Biol Mar 8, 359–402 (in French).
    [Google Scholar]
  2. Agatha, N., Wilbert, M., Spindler, M. & Elbrächter, M. ( 1990; ). Euplotide ciliates in sea ice of the Weddell Sea (Antarctica). Acta Protozool 29, 221–228.
    [Google Scholar]
  3. Berger, H. ( 2006; ). Monograph of the Urostyloidea (Ciliophora, Hypotricha). Monogr Biol 85, 1–1303.
    [Google Scholar]
  4. Borror, A. C. ( 1968; ). Systematics of Euplotes (Ciliophora, Hypotrichia); toward union of the old and the new. J Protozool 15, 802–808.[CrossRef]
    [Google Scholar]
  5. Borror, A. C. ( 1972; ). Revision of the order Hypotrichida (Ciliophora, Protozoa). J Protozool 19, 1–23.[CrossRef]
    [Google Scholar]
  6. Burkovsky, I. V. ( 1970; ). The ciliates of the mesopsammon of the Kandalaksha Gulf (White Sea). I. Acta Protozool 7, 475–489 (in Russian with English summary).
    [Google Scholar]
  7. Carter, H. P. ( 1972; ). Infraciliature of eleven species of the genus Euplotes. Trans Am Microsc Soc 91, 466–492.[CrossRef]
    [Google Scholar]
  8. Curds, C. R. ( 1975; ). A guide to the species of the genus Euplotes (Hypotrichida, Ciliatea). Bull Br Mus (Nat Hist) Zool 28, 1–61.
    [Google Scholar]
  9. Curds, C. R. ( 1977; ). Notes on the morphology and nomenclature of three members of the Euplotidae (Protozoa; Ciliatea). Bull Br Mus (Nat Hist) Zool 31, 267–278.
    [Google Scholar]
  10. Elwood, H. J., Olsen, G. J. & Sogin, M. L. ( 1985; ). The small-subunit ribosomal RNA gene sequences from the hypotrichous ciliates Oxytricha nova and Stylonychia pustulata. Mol Biol Evol 2, 399–410.
    [Google Scholar]
  11. Gelei, J. ( 1950; ). Uj euplotesek a Tisza vizrenszeréböl XI. Közlemény a Magyar fauna csillósairól. Ann Biol Univ Szeged 1, 243–247 (in Hungarian).
    [Google Scholar]
  12. Hu, X. ( 2008; ). Cortical structure in non-dividing and dividing Diophrys japanica spec. nov. (Ciliophora, Euplotida) with notes on morphological variation. Eur J Protistol 44, 115–129.[CrossRef]
    [Google Scholar]
  13. Jiang, J., Shao, C., Li, L., Ma, H., Gong, J. & Song, W. ( 2008; ). Morphological studies on seven hypotrichous ciliates (Protozoa, Ciliophora) from coastal waters off Qingdao, China. Acta Zootaxon Sin 33, 115–119 (in Chinese with English summary).
    [Google Scholar]
  14. Kumar, S., Tamura, K. & Nei, M. ( 2004; ). mega3: integrated software for molecular evolutionary genetics analysis and sequence alignment. Brief Bioinform 5, 150–163.[CrossRef]
    [Google Scholar]
  15. Ma, H.-G., Jiang, J.-M., Hu, X.-Z., Shao, C. & Song, W.-B. ( 2007; ). Morphology and morphogenesis of the marine ciliate, Euplotes rariseta (Ciliophora, Euplotida). Acta Hydrobiol Sin 32 (suppl), 57–62 (in Chinese with English summary).
    [Google Scholar]
  16. Song, W. & Packroff, G. ( 1997; ). Taxonomische Untersuchungen an marinen Ciliaten aus China mit Beschreibungen von zwei neuen Arten, Strombidium globosaneum nov. spec. und S. platum nov. spec. (Protozoa, Ciliophora). Arch Protistenkd 147, 331–360 (in German).[CrossRef]
    [Google Scholar]
  17. Song, W. & Wilbert, N. ( 1997; ). Morphological investigations on some free living ciliates (Protozoa, Ciliophora) from China Sea with description of a new hypotrichous genus, Hemigastrostyla nov. gen. Arch Protistenkd 148, 413–444.[CrossRef]
    [Google Scholar]
  18. Song, W., Wilbert, N., Chen, Z. & Shi, X. ( 2004; ). Considerations on the systematic position of Uronychia and related euplotids based on the data of ontogeny and 18S rRNA gene sequence analyses, with morphogenetic redescription of Uronychia setigera Calkins, 1902 (Ciliophora, Euplotida). Acta Protozool 43, 313–328.
    [Google Scholar]
  19. Song, W., Shao, C., Yi, Z., Li, L., Warren, A., Al-Rasheid, A. K. & Yang, J. ( 2009; ). The morphology, morphogenesis and SSrRNA gene sequence of a new marine ciliate, Diophrys apoligothrix spec. nov. (Ciliophora; Euplotida). Eur J Protistol 45, 38–50.[CrossRef]
    [Google Scholar]
  20. Tuffrau, M. ( 1954; ). Les caractères specifiques dans le genre Euplotes (Note préliminaire). Bull Soc Zool Fr 15, 1–77.
    [Google Scholar]
  21. Tuffrau, M. ( 1959; ). Polymorphisme par anisotomie chez le cilié Euplotes balteatus (Dujardin). C R Acad Sci Paris 248, 3055–3057.
    [Google Scholar]
  22. Tuffrau, M. ( 1960; ). Révision du genre Euplotes, fondée sur la comparaison des structures superficielles. Hydrobiologia 15, 1–77.[CrossRef]
    [Google Scholar]
  23. Valbonesi, A., Apone, F. & Luporini, P. ( 1997; ). Morphology and biology of a new species of Euplotes, Euplotes plicatum sp. n. (Ciliophora: Euplotidae). Acta Protozool 36, 287–294.
    [Google Scholar]
  24. Washburn, E. S. & Borror, A. C. ( 1972; ). Euplotes raikovi Agamaliev, 1966 (Ciliophora, Hypotrichida) from New Hampshire: description and morphogenesis. J Protozool 19, 604–608.[CrossRef]
    [Google Scholar]
  25. Wilbert, N. ( 1975; ). Eine verbesserte Technik der Protargolimprägnation für Ciliaten. Mikrokosmos 64, 171–179.
    [Google Scholar]
  26. Wilbert, N. & Song, W. ( 2008; ). A further study on littoral ciliates (Protozoa, Ciliophora) near King George Island, Antarctica, with description of a new genus and seven new species. J Nat Hist 42, 979–1012.[CrossRef]
    [Google Scholar]
  27. Yi, Z., Song, W., Warren, A., Roberts, D., Al-Rasheid, K. A. S., Chen, Z., Al-Farraj, S. A. & Hu, X. ( 2008a; ). A molecular phylogenetic investigation of Pseudoamphisiella and Parabirojimia (Protozoa, Ciliophora, Spirotrichea), two genera with ambiguous systematic positions. Eur J Protistol 44, 45–53.[CrossRef]
    [Google Scholar]
  28. Yi, Z., Song, W., Shao, C., Warren, A., Al-Rasheid, K. A. S., Roberts, D., Miao, M., Al-Quraisy, S. A. & Chen, Z. ( 2008b; ). Phylogeny of some systematically uncertain urostyloids – Apokeronopsis, Metaurostylopsis, Thigmokeronopsis (Ciliophora, Stichotrichia) estimated with small subunit rRNA gene sequence information: discrepancies and agreements with morphological data. Eur J Protistol 44, 254–262.[CrossRef]
    [Google Scholar]
  29. Yi, Z., Song, W., Clamp, J., Chen, Z., Gao, S. & Zhang, Q. ( 2009; ). Reconsideration of systematic relationships within the order Euplotida (Protista, Ciliophora) using new sequences of the gene coding for small-subunit rRNA and testing the use of combined data sets to construct phylogenies of the Diophrys-complex. Mol Phylogenet Evol 50, 599–607.[CrossRef]
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/ijsem/10.1099/ijs.0.012120-0
Loading
/content/journal/ijsem/10.1099/ijs.0.012120-0
Loading

Data & Media loading...

Most Cited This Month

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error