Aphelenchus

  

Contents

  

Rev 09/12/2023

  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:

      Tylenchida
       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:

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: September 12, 2023.