1887

Abstract

Few studies using modern methods have been carried out on ciliated protozoa in tropical marine waters. In the present work, two hypotrichs, spec. nov. and (Cohn, 1866) Berger, 2003, collected from Daya Bay in southern China, were investigated morphologically. is distinguished by the following combination of characters: slender body, without a snout-like protrusion in the frontal field, and about 50 macronuclear nodules. The poorly known has never been investigated using modern methods; hence, a redescription is needed. During the present study, observations of specimens and following protargol impregnation revealed new information concerning structures such as the cortical granules and the infraciliature. A redescription and improved diagnosis are supplied based on the China population. The small-subunit (SSU) rRNA gene was sequenced for both organisms and comparisons with those of similar congeners clearly support the findings based on morphological studies.

Loading

Article metrics loading...

/content/journal/ijsem/10.1099/ijs.0.008037-0
2010-01-01
2024-03-29
Loading full text...

Full text loading...

/deliver/fulltext/ijsem/60/1/234.html?itemId=/content/journal/ijsem/10.1099/ijs.0.008037-0&mimeType=html&fmt=ahah

References

  1. Berger H. 2003; Redefinition of Holosticha Wrzesniowski, 1877 (Ciliophora, Hypotricha). Eur J Protistol 39:373–379 [CrossRef]
    [Google Scholar]
  2. Berger H. 2004; Uroleptopsis Kahl, 1932 (Ciliophora, Hypotricha): morphology and cell division of type species, redefinition, and phylogenetic relationships. Acta Protozool 43:99–122
    [Google Scholar]
  3. Berger H. 2006; Monograph of the Urostyloidea (Ciliophora, Hypotricha). Monogr Biol 85:1–1304
    [Google Scholar]
  4. Berger H., Foissner W. 1989; Morphology and biometry of some soil hypotrichs (Protozoa, Ciliophora) from Europe and Japan. Bull Br Mus Nat Hist (Zool 55:19–46
    [Google Scholar]
  5. Borror A. C., Wicklow B. J. 1983; The suborder Urostylina Jankowski (Ciliophora, Hypotrichida): morphology, systematics and identification of species. Acta Protozool 22:97–126
    [Google Scholar]
  6. Cohn F. 1866; Neue Infusorien im Seeaquarium. Z Wiss Zool Leipzig 16:253–302 (in German
    [Google Scholar]
  7. Corliss J. O. 1979 The Ciliated Protozoa: Characterization, Classification and Guide to the Literature , 2nd edn. Oxford: Pergamon Press;
    [Google Scholar]
  8. Entz G. 1884; Über Infusorien des Golfes von Neapel. Mitt Zool Stn Neapel 5:289–444 (in German
    [Google Scholar]
  9. Foissner W. 1982; Ökologie und Taxonomie der Hypotrichida (Protozoa: Ciliophora) eineger österreichischer Böden. Arch Protistenkd 126:19–143 (in German [CrossRef]
    [Google Scholar]
  10. Gao S., Chen Z., Shao C., Long H., Al-Rasheid K. A. S., Song W. 2008; Reconsideration of the phylogenetic position of Frontonia -related Peniculia (Ciliophora, Protozoa) inferred from the small subunit ribosomal RNA gene sequences. Acta Protozool 47:47–54
    [Google Scholar]
  11. Gong J., Kim S., Kim S., Min G., Roberts D., Warren A., Choi J. 2007; Taxonomic redescriptions of two ciliates, Protogastrostyla pulchra n. g., n. comb. and Hemigastrostyla enigmatica (Ciliophora: Spirotrichea, Stichotrichia), with phylogenetic analyses based on 18S and 28S rRNA gene sequences. J Eukaryot Microbiol 54:468–478
    [Google Scholar]
  12. Guindon S., Gascuel O. 2003; A simple, fast and accurate algorithm to estimate large phylogenies by maximum likelihood. Syst Biol 52:696–704 [CrossRef]
    [Google Scholar]
  13. Hu X. 2008; Cortical structure in non-dividing and dividing Diophrys japonica spec nov. (Ciliophora Euplotida) with notes on morphological variation. Eur J Protistol 44:115–129 [CrossRef]
    [Google Scholar]
  14. Hu X., Song W., Warren A. 2002; Observations on the morphology and morphogenesis of a new marine urostylid ciliate, Parabirojimia similis nov. gen., nov. spec. (Protozoa, Ciliophora, Hypotrichida). Eur J Protistol 38:351–364 [CrossRef]
    [Google Scholar]
  15. Kahl A. 1932; Urtiere oder Protozoa I: Wimpertiere oder Ciliata (Infusoria) 3. Spirotricha. In Die Tierwelt Deutschlands und der angrenzenden Meeresteile vol 25 pp 399–650 Jena: Gustav Fischer (in German;
    [Google Scholar]
  16. Kahl A. 1933; Ciliata libera et ectocommensalia. In Die Tierwelt der Nord- und Ostsee vol 23 pp 29–146 Edited by Grimpe G., Wagler E. Leipzig: Akademische Verlagsgesellschaft (in German;
    [Google Scholar]
  17. Li L., Song W., Warren A., Al-Rasheid K. A. S., Roberts D., Yi Z., Al-Farraj S. A., Hu H. 2008; Morphology and morphogenesis of a new marine ciliate, Apokeronopsis bergeri nov. spec. (Ciliophora, Hypotrichida) from the Yellow Sea, China. Eur J Protistol 44, 208–219 [CrossRef]
  18. Lin X., Song W., Li J. 2007; Amphileptus aeschtae nov. spec. and Amphileptus eigneri nov. spec. (Ciliophora, Pleurostomatida), two new marine pleurostomatid ciliates from China. Eur J Protistol 4377–86 [CrossRef]
    [Google Scholar]
  19. Lin X., Li J., Gong J., Warren A., Song W. 2008; Taxonomic studies on three marine pleurostomatid ciliates, Litonotus bergeri nov. spec. L. blattereri nov. spec. and Lpetzi nov. spec. (Ciliophora, Pleurostomatida) from North China Sea. Eur J Protistol 44:91–102 [CrossRef]
    [Google Scholar]
  20. Lynn D. H., Small E. B. 2002; Phylum Ciliophora Doflein; 1901; In An Illustrated Guide to the Protozoa . , 2nd edn. pp 371–656 Edited by Lee J. J., Leedale G. F., Bradbury P. C. Lawrence, KS: Society of Protozoologists;
  21. Mansfeld K. 1923; 16 neue oder wenig bekannte marine Infusorien. Arch Protistenkd 46:97–140 (in German
    [Google Scholar]
  22. Nylander J. A. A. 2004 Mr Modeltest 2 Uppsala: Evolutionary Biology Centre, Uppsala University;
    [Google Scholar]
  23. Ronquist F., Huelsenbeck J. P. 2003; MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19:1572–1574 [CrossRef]
    [Google Scholar]
  24. Schmidt S., Bernhard D., Schlegel M., Foissner W. 2007; Phylogeny of Stichotrichia (Ciliophora; Spirotrichea) reconstucted with nuclear small subunit rRNA gene sequences: discrepancies and accordances with morphological data. J Eukaryot Microbiol 54:201–209 [CrossRef]
    [Google Scholar]
  25. Shao C., Miao M., Song W., Warren A., Al-Rasheid K. A. S., Al-Quaishy S. A., Al-Farraj S. A. 2008a; Studies on two marine Metaurostylopsis spp. from China with notes on the morphogenesis of M. sinica nov. spec. (Ciliophora, Urostylida). Acta Protozool 47:95–112
    [Google Scholar]
  26. Shao C., Song W., Al-Rasheid K. A. S., Yi Z., Al-Farraj S. A., Al-Quraisy S. A. 2008b; Morphology and infraciliature of two new marine urostylid ciliates: Metaurostylopsis struederkypkeae nov. spec. and Thigmokeronopsis stoecki nov. spec (Ciliophora, Hypotrichida) from China. J Eukaryot Microbiol 55, 289–296 [CrossRef]
    [Google Scholar]
  27. Song W., Wilbert N. 1997a; Morphological studies on some free living ciliates (Ciliophora: Heterotrichida, Hypotrichida) from marine biotopes in Qingdao, China, with descriptions of three new species: Holosticha warreni nov. spec., Tachysoma ovata nov. spec. and T. dragescoi nov. spec. Eur J Protistol 33:48–62 [CrossRef]
    [Google Scholar]
  28. Song W., Wilbert N. 1997b; 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]
  29. Swofford D. L. 2002; paup*. Phylogenetic analysis using parsimony (* and other methods). Sunderland, MA: Sinauer Associates;
  30. Wilbert N. 1975; Eine verbesserte Technik der Protargolimprägnation für Ciliaten. Mikrokosmos 64:171–179 (in German
    [Google Scholar]
  31. Wilbert N., Song W. 2005; New contributions to the marine benthic ciliates from the Antarctic area, including description of seven new species (Protozoa, Ciliophora). J Nat Hist 39:935–973 [CrossRef]
    [Google Scholar]
  32. Yi Z., Song W., Warren A., Roberts D. M., Al-Rasheid K. A. S., Chen Z., Al-Farraj S. A., Hu X. 2008; 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]
http://instance.metastore.ingenta.com/content/journal/ijsem/10.1099/ijs.0.008037-0
Loading
/content/journal/ijsem/10.1099/ijs.0.008037-0
Loading

Data & Media loading...

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