Seinura		Contents		Rev 12/17/2024
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Seinura Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Aphelenchoididae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

      Chromadorea
       Rhabditida
       Tylenchina
         Aphelenchoidea
          Aphelenchoididae

           Seinura Fuchs, 1931

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Morphology and Anatomy:

• Tails of both sexes usually variously elongate to filiform, not short-conical.
• Lip region high.
• Stylet slender, 10-27 um long, basal knobs absent or with small basal thickenings.
• Metacorpus of esophagus oblong to long-oval, with prominent posteriorly located valve plates.

Female:

• Monodelphic, prodelphic, postuterine sac present or absent.

Male:

• Spicules paired, not fused, similar to those of Aphelenchoides but with elongated apex and prominent rostrum.
• Dorsal wall of spicule pouch thickened, cuticular.
• Male tail arcuate, with 2-4 pairs of caudal papillae.
• Caudal alae absent.

Ref: Nickle, 1970

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Distribution:

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Feeding:

Seinura demani has been shown to feed and reproduce as a predator on other nematodes (Wood, 1973).

Feed as predators: Use stylet to penetrate prey and withdraw body contents (Bilgrami, 2008).

	Society of Nematologists photograph

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Biology and Ecology:

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Life Cycle:

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Ecosystem Functions and Services:

Predatory on other nematodes.

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Management:

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References:

Bilgrami, A.L. 2008. Biocontrol potentials of predatory nematodes. Chapter 1 in Ciancio, A. and Mukerji, K.G. (eds).Integrated Management and Biocontrol of Vegetable and Grain Crops Nematodes pp3-28.

Fuchs, A.G. 1931. Seinura gen. nov. Zoologischer Anzeiger 94:226-228.

Hechler, H.C. 1963. Description, developmental biology, and feeding habits of Seinura tenuicaudata (De Man) J.B. Goodey, 1960 (Nematoda: Aphelenchoididae), a nematode predator. Proc. Helminthological Society of Washington 30: 182-195.

Nickle, W.R. 1970. A Taxonomic Review of the Genera of the Aphelenchoidea (Fuchs, 1937) Thorne, 1949 (Nematoda: Tylenchida) . J. Nematology 2:375-392.

Wood, F.H. 1973. Nematode feeding relationships: Feeding relationships of soil-dwelling nematodes. Soil Riol. Biochem. 5: 593-601.

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Copyright © 1999 by Howard Ferris.
Revised: December 17, 2024