Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Ultrastructure and Function of the Anterior Feeding Apparatus in Mononchus Aquaticus

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Nematologica
For more content, see Nematology.

The structure and function of the anterior feeding apparatus of Mononchus aquaticus, a predatory nematode, were studied by electron microscopic and cinematographic analysis. The lip region is composed of cuticular material and bears two sets of outgrowths, the liplets, projecting into the vestibulum. The buccal capsule, described here as a functional unit, is composed of three sets of plates. Ontogenetically, however, the anterior oblique plates belong to the cheilostome. Two sets of eight modified somatic muscles, the labial and stomatal muscles, are present at the level of the buccal capsule. During attack on the prey the lip region is pulled backwards by contraction of the labial muscles, and the anterior part of the buccal capsule, thus brought into close contact with the prey's cuticle, is dilated. Simultaneously the oesophageal muscles contract, creating suction. During ingestion the posterior oblique plates of the buccal capsule are drawn backwards into a vertical position and the oesophageal lumen becomes fully dilated. The structure of the lumen lining of the anterior oesophagus suggests a sequence of two phases of dilation necessitated by the bulky meal. The stomatal muscles probably provide a good hold for the buccal capsule on the struggling of the prey. Further they may restore the head region to its original shape after feeding, thus acting as retractors. Marginal muscles of the oesophagus are well developed and are thought to assist in the closure of the complex oesophageal lumen lining. The structure of the anterior feeding apparatus in M. aquaticus is compared with that of the Dorylaimoidea.

Affiliations: 1: Instituut voor Dierkunde, Rijksuniversiteit, Ledeganckstraat 35, B-9000 Gent, Belgium; 2: Institut für Pflanzenkrankheiten und Pflanzenschutz der Universität, D-3000 Hannover-Herrenhausen, B.R. Deutschland


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Nematologica — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation