Aphis fabae (Aphididae) - Geburt

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Formal Metadata

Title
Aphis fabae (Aphididae) - Geburt
Alternative Title
Aphis fabae (Aphididae) - Birth
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 Signature
E 2934
Publisher
Release Date
1986
Language
Silent film
Producer
IWF
Production Year
1985

Content Metadata

Subject Area
Abstract
Ungeflügelte Weibchen (Virgines) der Schwarzen Bohnenlaus gebären parthenogenetisch Jungtiere. Einzelne Phasen der Geburt: Austreten des Embryos, Aufplatzen der Embryonalhülle, Abstreifen der Hülle und Freiwerden der Gliedmaßen.
Two examples document the birth process. With several quick thrusts the virgo forces the young louse out of oviduct with its abdomen forward. With the head remaining in the oviduct of the virgo, the young louse bursts open the embryonal sheath along the preformed dorsal suture. The embryonal sheath is stripped off by continous displacement of the haemolymph. After the legs of the young louse have been freed from the sheath and have a hold on the back of a conspecific, the virgo disconnects itself from the newly born larva by a twishing movement of the abdominal tip.
Keywords Virgo Parthenogenese Geburt / Insecta Aphis fabae Schwarze Bohnenlaus Laus / Bohnenlaus Blattlaus aphid birth / Insecta black bean aphid parthenogenesis virgo Aphis fabae
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