Acontylus vipriensis

 

Contents

  

Rev 10/25/2012

  Classification Hosts
Morphology and Anatomy Life Cycle
Return to Acontylus Menu Economic Importance Damage
Distribution Management
Return to Hoplolaimidae Menu Feeding  References
         

Classification:

      Tylenchina
       Tylenchoidea
        Hoplolaimidae
         Rotylenchulinae
          Acontylus vipriensis (Meagher, 1968)

    Synonyms:
      None.

Back to Top

Morphology and Anatomy:

.

 Female: Body straight to slightly ventrally arcuate, swollen in the vulval area.  

Labial region high, slightly offset, trapezoid in lateral outline.  

Lateral field with four lines.  

Phasmids at anus level. 

Cephalids and caudalid not described.  

Tail short, hemispherical. 

Labial framework and stylet well developed.  

Stylet knobs sloping backwards in the only known species.  

Dorsal esophageal gland opening (DEGO) 13 µm from stylet base.  

Median bulb strong, rounded.  

Anterior genital branch outstretched.  Posterior branch reduced to a post-uterine sac (PUS).    
Males:  Vermiform.  

Labial region knob-like, high, rounded, distinctly offset.

Stylet, labial framework, and esophagus reduced in size.

Caudal alae enveloping tail. 

Juveniles: Tail rounded with a long terminal projection.

      [Ref: Fortuner, (1987).]
Back to Top

Distribution:

Australia.

Back to Top

Economic Importance:

 

Back to Top

Feeding:

Females are semi-endoparasitic; their anterior portion is embedded in the root up to the level of the excretory pore.  

Males and juveniles have not been observed feeding.        

Back to Top

Hosts:

Acontylus vipriensis is reported from Eucalyptus sp.  

For an extensive list of host plant species and their susceptibility, copy the name

Acontylus vipriensis

select Nemabase and paste the name in the Genus and species box

Back to Top

Life Cycle:

Eggs are deposited singly in a gelatinous matrix.

Back to Top

Damage:

 

Back to Top

Management:

 

Back to Top

References:

Fortuner, Rev. Nematol. 10(2):219-232 (1987).

Meagher. J. W. 1968. Acontylus vipriensis n. g., n. sp. (Nematoda: Hoplolaimidae) parasitic on Eucalyptus sp. in Australia. Nematologica 14:94-100.

Back to Top

For more information about nematodes, Go to Nemaplex Home Page.

Copyright © 1999 by Howard Ferris.
Revised: October 25, 2012.