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| Content Provider | Springer Nature Link |
|---|---|
| Author | Hraste, A. Janicki, Z. Zobundžija, M. Mihelić, D. Jakovac, M. Rinck, J. |
| Copyright Year | 1997 |
| Abstract | Die Untersuchungen an denGlandulae profundae plicae semilunares conjunctivae (Harderdrüse) wurden an Präparaten von Wolf (Canis lupus L.), Deutschem Schäferhund (Canis familiaris L.), Fuchs (Vulpes vulpes L.), Marder (Martes martes) und von Wildkatzen (Felis silvestris) durchgeführt. Die Harderdrüse hat einen lobulären Bau. Die Drüsenzellen sind mit Ausnahme des Fuchses bei allen untersuchten Tierarten hochprismatisch. Die Zellen der Nickhautdrüse des Fuchses sind kubisch. Beim Wolf wird innerhalb der Drüsenzellen eine starke Vakuolenbildung beobachtet, hingegen weisen nur wenige Drüsenzellen der anderen untersuchten Tierarten Vakuolen auf. Hohe Konzentrationen saurer Glukosaminoglykane in den Zellen der Nickhautdrüse finden sich beim Deutschen Schäferhund, bei der Wildkatze und dem Marder, geringe in den gleichen Zellen beim Fuchs. Beim Wolf zeigen die Drüsenzellen, die sich in der Sekretionsphase befinden, starke Anteile an sauren Glukosaminoglykanen und geringe in den Drüsenzellen ohne Sekretion. Schwache Konzentrationen PAS-positiver Substanzen finden sich bei fast allen untersuchten Arten mit Ausnahme des Wolfes. Bei letzterem finden sich mäßige bis hohe Konzentrationen. Die Unterschiede in Bau und Konzentration in den Harder'schen Drüsenzellen der untersuchten Präparate könnte man der Tierart, ihrer Lebensweise und ihrem Aktionsradius zuschreiben.Research was carried out on samples of Harderian gland in wolf (Canis lupus lupus L.), fox (Vulpes vulpes L.), marten (Mustela marfes) and wild cat (Felis silvestris) as well as on German shepherd (Canis familiaris L.). The gland has a lobular structure. The gland epithelium cells are highly prismatic except in fox, where they are cubic. Strong vacuolization within gland cells is obvious in wolf, while in other animals only few cells show such an appearance of vacuoles. A high concentration of acid glycosaminoglycanes was observed in the Harderian gland cells of dog, wild cat and marten, but in fox cells this concentration was low. The wolf's gland cells during the secretory phase manifest a high presence and those not secreting a moderate presence of acid glycosaminoglycanes. The concentration of PAS-positive substances in gland cells of all animals investigated was insignificant except in those for wolves where this concentration varied from moderate to strong. Differences in construction and concentration of the investigated substances in the Harderian gland may be due to the animal species, their ways of life, and their migration radius.Les recherches sur lesGlandulae profundae plicae semilunares conjunctivae (glandes de Harder) ont été effectuées sur des préparations de Loup (Canis lupus L.), de Chien berger allemand (Canis familiaris L.), Renard (Vulpes vulpes L.), Martre (Martes martes) et de Chat sauvage (Felis silvestris). Les glandes de Harder présentent une construction lobée. Les cellules glandulaires sont toutes, à l'exception de celles du Renard, de forme prismatique caractérisée. Chez le Renard, les cellules de la glande nictitante sont cubiques. Chez le Loup, on observe à l'intérieur des cellules glandulaires une formation caractérisée de vacuoles, formation plutôt rare chez les autres animaux étudiés. De fortes concentrations de Glucosaminoglycanes acidophiles s'observent dans les cellules de la membrane nictitante chez le Chien berger allemand, chez le Chat sauvage et chez la Martre, ces concentrations étant faibles dans les mêmes cellules chez le Renard. Chez le Loup, les cellules glandulaires qui se trouvent en phase de sécrétion montrent de fortes proportions de Glucosaminoglycanes acidophiles tandis qu'elles sont faibles dans les cellules ne présntant pas de sécrétion. De faibles concentrations de substances PAS-positives se retrouvent pratiquement chez toutes les espèces étudiées, à l'exception du Loup, chez lequel les concentrations sont moyennes à élevées. Les différences de construction et de concentration dans les cellules glandulaires de Harder des préparations examinées peuvent s'expliquer en fonction de l'espèce considérée et de son mode de vie. |
| Starting Page | 120 |
| Ending Page | 124 |
| Page Count | 5 |
| File Format | |
| ISSN | 00442887 |
| Journal | European Journal of Wildlife Research |
| Volume Number | 43 |
| Issue Number | 2 |
| e-ISSN | 14390574 |
| Language | French |
| Publisher | Springer-Verlag |
| Publisher Date | 1997-01-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Animal Ecology Zoology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Animal Science and Zoology |
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