Journalartikel

Jahr der Veröffentlichung: 1991

Seiten: 211-221

Zeitschrift: Journal of Insect Physiology

Bandnummer: 37

Heftnummer: 3

ISSN: 0022-1910

eISSN: 1879-1611

DOI Link: https://doi.org/10.1016/0022-1910(91)90071-7

Verlag: Elsevier

Abstract: 
Larvae of the terrestrial dipteran, Musca domestica, were exposed to extremely hypotonic sodium chloride solution with either 0.5-mu-Ci Cl-36-/ml or 0.5-mu-Ci Na-22+/ml over varying periods of time or to different osmotic concentrations, by the addition of D(+)-glucose, for a definite exposure time. These different osmotic concentrations ranged from highly diluted hypoosmotic to hyperosmotic solutions; the radioactivity added to each medium was kept constant (0.5-mu-Ci/ml). Using normal larvae and larvae which were ligated directly behind their mouths, it was demonstrated that the semiaquatic larvae are able to absorb chloride and sodium ions from the external medium, to be specific by well-defined, specialized epithelial regions. This absorption is dependent on time, but it is independent of osmolality of the medium. The results in conjunction with supporting preliminary data of ultrastructural features and experiments on ion-adsorption suggest that these epithelial structures of M. domestica larvae are involved in ion- and osmoregulation through active ion transport. The designation of those specialized epithelial regions as chloride cells and anal chloride epithelia in accordance with comparable differentiations in other insect species proved therefore to be absolutely correct.

Harvard-Zitierstil: SCHWANTES, P. and SEIBOLD, G. (1991) ION-ABSORPTION BY SPECIALIZED EPITHELIAL REGIONS IN MUSCA-DOMESTICA LARVAE, Journal of Insect Physiology, 37(3), pp. 211-221. https://doi.org/10.1016/0022-1910(91)90071-7

APA-Zitierstil: SCHWANTES, P., & SEIBOLD, G. (1991). ION-ABSORPTION BY SPECIALIZED EPITHELIAL REGIONS IN MUSCA-DOMESTICA LARVAE. Journal of Insect Physiology. 37(3), 211-221. https://doi.org/10.1016/0022-1910(91)90071-7