Acontylus vipriensis

 

Contents

  

Rev 12/16/2024

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

     

Chromadorea
       Rhabditida

Tylenchina

       Tylenchoidea
        Hoplolaimidae
         Rotylenchulinae
          Acontylus vipriensis Meagher, 1968

    Synonyms:
      None.

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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).    

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

Australia.

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Economic Importance:

 

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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.        

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Hosts:

Acontylus vipriensis is reported from Eucalyptus sp.  

For an extensive host range list 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

 

Eggs are deposited singly in a gelatinous matrix.

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Damage:

 

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Management:

For plants reported to have some level of resistance to this species, click

 

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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.

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Copyright � 1999 by Howard Ferris.
Revised: December 16, 2024.