Aphelenchus avenae

Aphelenchus avenae	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
	Go to Nemaplex Main Menu	Go to Dictionary of Terminology

Classification:

      Tylenchida
       Aphelenchina
        Aphelenchoidea
         Aphelenchidae
          Aphelenchinae

Aphelenchus avenae Bastian, 1865

The type species of the genus

Synonyms:

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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Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

Economic Importance:

Aphelenchus avenae suoppressed Rhizoctonia and the incidence of wilt disease associated with the fungus (Barker, 1964; Okada, 2006).

Generally categorized as fungal feeders and readily cultured on fungi..Aphelenchus avenae fed and reproduced well on seven isolates of Rhizoctonia solani cultured from different plant hosts (Okada et al., 2010).

But, in tissue culture, Aphelenchus avenae has been observed to feed and reproduce on seedling roots, callus tissue, fungi and moss (Wood, 1973). Also, Barker and Darling (1965) were able to culture the nematode on undifferentiated callus tissues of carrot, periwinkle, tobacco and tomato; however, the plant material was resistant to nematode feeding if allowed to grow for 3 weeks prior to inoculation.

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Hosts:

For an extensive host range list (if any) for this species, click

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Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click	If species level data are not available, click for genus level parameters

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Damage:

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Management:

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References:

Barker, K. R. (1964) On the disease reduction and production of the nematode Aphelenchus avenae on isolates of Rhizoctonia solani. Plant Disease Reporter 48, 428- 432

Barker, K.R. and Darling, H.M. 1965. Reproduction of Aphelenchus avenae on plant tissue in culture. Nematologica 11:162-166.

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.

Okada, H. (2006) Ecology of fungivorous nematodes and their use for suppression of plant diseases. Bulletin of the National Agricultural Research Center for Tohoku Region 105, 155-197. (in Japanese with an English summary)

Okada, H., H. Harada, M. Nozaki. 2010. Propagation of Aphelenchus avenae Bastian (Aphelenchidae) and Filenchus misellus AndrÃƒÂ¯Ã‚Â¿Ã‚Â½ssy (Tylenchidae) on seven fungal isolates of Rhizoctonia solani as food source. Nematological Research 40:53-55.

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