Skip to main content
Log in

Der Ankerapparat vonSida crystallina (Crustacea, Cladocera)

II. Feinbau und Neubildung

The anchor apparatus ofSida crystallina (Crustacea, Cladocera)

II. Ultrastructure and formation

  • Published:
Zoomorphologie Aims and scope Submit manuscript

Summary

Sida crystallina attaches itself to the substratum by adhesive anchors. Anchors and anchor threads are embedded in a matrix and situated on the epicuticle. The anchor threads are connected to the epicuticle by special junctions at which they can be separated. The new structures of the anchor organs, which are secreted by epidermal cells, are firstly laid down in layers parallel to the surface. Later the area of secretion becomes shifted backward. Then the junctions are formed and finely the secretion of the cuticle follows. After molting the anchor ledge turns out in its functional position and sclerotisation of the procuticle takes place.

Zusammenfassung

Die in eine Grundsubstanz eingebetteten Klebanker und Ankerfäden, mit deren Hilfe sichSida crystallina am Substrat befestigt, liegen auf der Epicuticula. Die Fäden sind mit der Epicuticula über Trennvorrichtungen verbunden. Die Sekretion der Ankerstrukturen durch die Epidermiszellen erfolgt zunächst in oberflächenparallelen Schichten. Später wird das Sekretionsfeld mit den Fadenenden nach hinten verschoben. Es folgt die Bildung der Trennstellen und schließlich die Sekretion der Cuticula. Nach der Häutung klappt die Ankerleiste in ihre funktionelle Stellung und die Procuticula skierotisiert.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Literatur

  • Günzl, H.: Der Ankerapparat vonSida crystallina (Crustacea, Cladocera). I. Bau und Funktion. Zoomorphologie 90, 197–204 (1978)

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Günzl, H. Der Ankerapparat vonSida crystallina (Crustacea, Cladocera). Zoomorphologie 95, 149–157 (1980). https://doi.org/10.1007/BF00997908

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00997908

Navigation