The fine structure of the midgut epithelium in Xerobiotus pseudohufelandi (Iharos, 1966) (Tardigrada, Eutardigrada, Macrobiotidae)

  • Magdalena M. Rost-Roszkowska | magdalena.rost-roszkowska@us.edu.pl University of Silesia, Poland.
  • Izabela Poprawa University of Silesia, Poland.
  • Marta Hyra University of Silesia, Poland.
  • Monika Marek-Swędzioł University of Silesia, Poland.
  • Łukasz Kaczmarek A. Mickiewicz University, Poland.

Abstract

The aims of our studies were to describe the ultrastructure of the midgut epithelial cells of the eutardigrade Xerobiotus pseudohufelandi and to determine if there are any differences in the ultrastructure of midgut epithelial cells between males and females. The analysis was performed with the use of the light and transmission electron microscopes. In X. pseudohufelandi the midgut epithelium is composed of digestive cells, but in the anterior portion of the midgut a group of cells with different ultrastructure has been observed. Histochemical staining showed the accumulation of reserve material in the cytoplasm of digestive cells. We suggest that some of them fulfil the role of regenerative cells (crescent-like cells, midgut stem cells), whereas others are differentiating cells which form new digestive cells. No differences in the ultrastructure of the midgut epithelium between males and females were distinguished except in the amount of multivesicular bodies.

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Author Biographies

Magdalena M. Rost-Roszkowska, University of Silesia
Department of Animal Histology and Embryology
Izabela Poprawa, University of Silesia
Department of Animal Histology and Embryology
Marta Hyra, University of Silesia
Department of Animal Histology and Embryology
Monika Marek-Swędzioł, University of Silesia
Department of Animal Histology and Embryology
Łukasz Kaczmarek, A. Mickiewicz University
Department of Animal Taxonomy and Ecology
Published
2013-04-26
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Issue
Section
12th International Symposium on Tardigrada
Keywords:
Tardigrada, midgut epithelium, multivesicular bodies
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How to Cite
1.
Rost-Roszkowska MM, Poprawa I, Hyra M, Marek-Swędzioł M, Kaczmarek Łukasz. The fine structure of the midgut epithelium in Xerobiotus pseudohufelandi (Iharos, 1966) (Tardigrada, Eutardigrada, Macrobiotidae). J Limnol [Internet]. 2013Apr.26 [cited 2021May9];72(s1):e7. Available from: https://jlimnol.it/index.php/jlimnol/article/view/jlimnol.2013.s1.e7