Observations on some unusual cell types in the enigmatic worm Xenoturbella (phylum uncertain)

Tissue and Cell

Volumn 38, Issue 4, 2006, Pages 233-242

  Israelsson, O ^a  

^a UPPSALA UNIVERSITY   (Sweden)

Author keywords

Acoels; C value; Genome size; Nemertodermatids; Phagocytosis; Pulsatile bodies; Xenoturbella

Indexed keywords

DNA; NUCLEIC ACID;

ANIMAL CELL; ARTICLE; CELL DIFFERENTIATION; CELL NUCLEUS; CELL PROLIFERATION; CELL REGENERATION; CELL TYPE; CELL ULTRASTRUCTURE; CILIATED EPITHELIUM; CONTROLLED STUDY; DNA CONTENT; GENOME SIZE; IMMUNOHISTOCHEMISTRY; MICROSCOPY; MITOCHONDRION; MUSCLE CELL; NONHUMAN; PHAGOCYTOSIS; PLATYHELMINTH; SEQUENCE HOMOLOGY; XENOTURBELLA BOCKI;

NEMERTODERMATIDA; PLATYHELMINTHES; XENOTURBELLA; XENOTURBELLA BOCKI;

EID: 33748439981     PISSN: 00408166     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tice.2006.05.002     Document Type: Article

References (31)

1. Atkin N.B., and Ohno S. DNA values of four primitive chordates. Chromosoma 23 (1967) 10-13
2. Bourlat S.J., Nielsen C., Lockyer A.E., Littlewood D.T.J., and Telford M.J. Xenoturbella is a deuterostome that eats molluscs. Nature 424 (2003) 925-928
3. Dorey A.E. The organization and replacement of the epidermis in acoelous turbellarians. Q. J. Microsc. Sci. 106 (1965) 147-172
4. Ehlers U. Pulsatile bodies" in Anaperus tvaerminnensis (Luther, 1912) (Acoela Plathelminthes) are degenerating epidermal cells. Microfauna Marina 7 (1992) 295-310
5. Ehlers U., and Sopott-Ehlers B. Ultrastructure of the subepidermal musculature of Xenoturbella bocki, the adelphotaxon of the Bilateria. Zoomorphology 117 (1997) 71-79
6. Franzén A., and Afzelius B.A. The ciliated epidermis of Xenoturbella bocki (Platyhelminthes Xenoturbellida) with some phylogenetic considerations. Zool. Scr. 16 (1987) 9-17
7. Gorman, A., McCarthy, J., Finucane, D., Reville, W., Cotter, T.G., 1996. Morphological assessment of apoptosis. In: Cotter, T.G., Martin, S.J. (Eds.), Techniques in Apoptosis: A User's Guide., Portland, London, pp. 1-20.
8. Hinegardner R. Cellular DNA content of the Mollusca. Comp. Biochem. Physiol. 47A (1974) 447-460
9. Hinegardner R. Cellular DNA content of the Echinodermata. Compar. Biochem. Physiol. 49B (1974) 219-226
10. Israelsson O. [Xenoturbella's molluscan relatives ...] and molluscan embryogenesis. Nature 390 (1997) 32
11. Israelsson O. New light on the enigmatic Xenoturbella (phylum uncertain): ontogeny and phylogeny. Proc. R. Soc. Lond. B 266 (1999) 835-841
12. Israelsson, O., 2000. Xenoturbella. Ph.D. Thesis, Stockholm University.
13. Israelsson O., and Budd G.E. Eggs and embryos in Xenoturbella (phylum uncertain) are not ingested prey. Dev. Genes Evol. 215 (2005) 358-363
14. Jägersten G. Further remarks on the early phylogeny of Metazoa. Zool. Bidr. Upps. 33 (1959) 79-108
15. Kerr J.F., Wyllie A.H., and Currie A.R. Apoptosis: a basic biological phenomenon with wide-ranging implications in tissue kinetics. Br. J. Cancer 26 (1972) 239-257
16. Lundin K. The epidermal ciliary rootlets of Xenoturbella bocki (Xenoturbellida) revisited: new support for a possible kinship with the Acoelomorpha (Platyhelminthes). Zool. Scr. 27 (1998) 263-270
17. Lundin K. Degenerating epidermal cells in Xenoturbella bocki (phylum uncertain) Nemertodermatida and Acoela (Platyhelminthes). Belg. J. Zool. 131 Suppl. 1 (2001) 153-157
18. Lundin K., and Hendelberg J. Degenerating epidermal bodies ("pulsatile bodies") in Meara stichopi (Plathelminthes Nemertodermatida). Zoomorphology 116 (1996) 1-5
19. Mirsky A.E., and Ris H. The desoxyribonucleic acid content of animal cells and its evolutionary significance. J. Gen. Physiol. 34 (1951) 451-462
20. Norén M., and Jondelius U. Xenoturbella's molluscan relatives .... Nature 390 (1997) 31-32
21. Nuovo G.J. PCR in Situ Hybridization (1998), Lippincott-Raven, Philadelphia
22. Pedersen K.J., and Pedersen L.R. Fine structural observations on the extracellular matrix (ECM) of Xenoturbella bocki Westblad. Acta Zool. 67 (1949) 103-113
23. Pedersen K.J., and Pedersen L.R. Ultrastructural observations on the epidermis of Xenoturbella bocki Westblad with a discussion of epidermal cytoplasmic filament systems of invertebrates. Acta Zool. 69 (1949) 231-246
24. Rasch E.M. DNA "standards" and the range of accurate DNA estimates by Feulgen absorption microspectrophotometry. In: Cowden R.R.S.H., and Harrison S.H. (Eds). Advances in Microscopy (1985), Liss, New York 137-166
25. Reisinger E. Was ist Xenoturbella?. Z. Wiss Zool. 164 (1960) 188-198
26. Romeis B. Mikroskopische Technik. 17th ed. (1989), Urban und Schwarzenberg, München
27. Tyler S. Turbellarian platyhelminths. In: Bereiter-Hahn J., Matoltsy A.G., and Richards K.S. (Eds). Biology of the Integument vol. 1 (1984), Springer, Berlin 112-131
28. Tyler S., Grimm J.K., and Smith J.P.S. Dynamics of epidermal wound repair in acoel turbellarians-the role of pulsatile bodies. Am. Zool. 29 (1989) 115A
29. Viehweg J., Naumann W.W., and Olsson R. Secretory radial glia in the ectoneural system of the sea star Asterias rubens (Echinodermata). Acta Zool. 79 (1998) 119-131
30. Westblad E. Xenoturbella bocki n.g., n.sp., a peculiar, primitive turbellarian type. Arkiv för Zoologi 1 (1949) 3-29
31. Zrzavy J., Mihulka S., Kepka P., Bezdek A., and Tietz D. Phylogeny of the Metazoa based on morphological and 18S ribosomal DNA evidence. Cladistics 14 (1998) 249-285