Aphelenchus

  

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Rev 04/15/2025

  Classification Hosts
Morphology and Anatomy Life Cycle
Return to Aphelenchus Menu Economic Importance Damage
Distribution Management
Return to Aphelenchidae Menu Feeding  References
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Classification:

      Chromadorea
    Rhabditida
        Aphelenchina
        Aphelenchoidea
         Aphelenchidae
          Aphelenchinae

           Aphelenchus Bastian, 1865

Type species of the genus: Aphelenchus avenae Bastian, 1865

   Synonyms:
     

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Morphology and Anatomy:

.
  • Lips slightly offset.
  • Stylet without basal knobs.
  • Esophageal glands overlap intestine dorsally.
  •  Hemizonid usually present, 3-8 annules posterior to excretory pore.

Female:

  • Body narrowing abruptly behind vulva.
  • Postuterine sac long.
  • Female tail short, bluntly rounded.

Male:

  • Male usually rare.
  • Spicules paired, slender, not fused, with minute rostrum.
  • Gubernaculum V-shaped,.
  • Male tail with well-developedcaudal alae supported by prominent ribs.
     
    Ref:  Nickle, W.R. 1970.

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Body size range for the species of this genus in the database - Click:
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Distribution:

 

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Economic Importance:

 

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Feeding:

Food Sources and Feeding strategies for the genus Aphelenchus

 

Generally categorized as fungal feeders.

But, in tissue culture, Aphelenchus avenae has been observed to feed and reproduce on seedling roots, callus tissue, fungi and moss  (Wood, 1973).    

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Hosts:

For an extensive host range list for this genus, click
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Life Cycle:

For Ecophysiological Parameters for this genus, click 
 
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Damage:

 

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Management:

 

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References:

Bastian, H.C. 1865. Monograph on the Anguillulidae or free nematoids, marine, land and freshwater, with descriptions of 100 new species. Trans. Linnean Soc. London 25:73-184.

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: April 15, 2025.