We're sorry but this page doesn't work properly without JavaScript enabled. Please enable it to continue.
Feedback

Humorale Einkapselung von Hydromermis contorta und Turbatrix aceti (Nematoda) in Haemolymphe von Chironomus thummi (Diptera)

Formal Metadata

Title
Humorale Einkapselung von Hydromermis contorta und Turbatrix aceti (Nematoda) in Haemolymphe von Chironomus thummi (Diptera)
Alternative Title
Humoral Encapsulation of Hydromermis contorta and Turbatrix aceti (Nematoda) in Hemolymph of Chironomus thummi (Diptera)
Author
License
CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
IWF SignatureE 1917
Publisher
Release Date
Language
Producer
Production Year1971

Technical Metadata

IWF Technical DataFilm, 16 mm, 63 m ; F, 6 min

Content Metadata

Subject Area
Genre
Abstract
German
German
Einkapselung als Abwehrreaktion der Zuckmücken gegen eingedrungene Parasiten (Fadenwürmer); eine eingekapselte, abgetötete Mermithidenlarve im Wirtstier, Abwehrreaktion in einem isolierten Tropfen Hämolymphe, Klebrigwerden der Larve, heftige Bewegungen innerhalb der Kapsel. Versuche mit den nichtparasitierenden Essigälchen in Hämolymphe. Mit Zeitraffung.
English
English
The film is a documentation of the non-cellular defense reaction (humoral encapsulation) of larvae of Chironomus thummi (Insecta; Diptera) against parasitic nematodes. The result of this reaction is first demonstrated in vivo. A dead parasite (Mermithidae, Hydromermis contorta), surrounded by a brownish crust, is shown in the body cavity of a Chironomus larva. The formation of the capsule can better be observed in vitro in isolated hemolymph. The deposition of the material begins within 2-5 minutes after addition of the mermithid. The nematode, first swimming around actively, begins to have more and more difficulties mowing. It is obvious that the surface of the parasite becomes sticky. The animl adheres to the underground and finally is completely motionless. At high magnification the deposition of the capsule can be studied in detail. On the cuticle of the mermithid droplets appear, which increase in number and size until a complete envelope is formed. The trapped parasite can be seen inside the capsule; it attemps to move and sometimes escapes by breaking the capsule. In the final part of the film the example of Turbatrix aceti shows that humoral encapsulation of Chironomus hemolymph is also efficient against non parasitic nematodes which are encapsulated in the same manner as the parasitic mermithids.
Keywords
German
German
English
English
IWF Classification
German
German
English
English