Bellodera   

 

Contents

 

Rev 05/23/2005

  Classification Hosts
Morphology and Anatomy Life Cycle

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Economic Importance Damage
Distribution Management
Return to Heteroderidae Menu Feeding  References
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Classification:

Tylenchida
       Tylenchina
        Tylenchoidea
         Heteroderidae
          Heteroderinae
           Bellodera (Wouts, 1985)

    Synonyms:
      None.

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Morphology and Anatomy:

.

Female: No cyst stage.  

Body globose, with projecting neck; terminal cone well developed, but posterior extremity somewhat flattened.  

Cuticle thick, with superficial, irregular, transverse striae and minute pits between striae; D-layer absent; subcrystalline layer present.  

Excretory pore forwardly situated 27 to 56 µm from anterior end.  

Vulva terminal; vulval slit large, not deeply sunken between hypertrophied vulval lips contituting the terminal cone; no fenestrae; no underbridge; no bullae.  

Anus situated at some distance from vulva, on posterior side of the cone. 

Eggs retained in body.  

Males: Body twisted.  

Stylet less than 30 µm long.

Lateral field with four lines. 

Spicules 30 µm long at most, nearly straight, directed obliquely, with distal extremity pointed.  

No cloacal tubus.  

Tail short, rounded. 

Second-stage Juveniles: Stylet long (35 to 40 µm).

Lateral field with four lines.

Esophageal glands filling body cavity.  

Tail conical, of medium length, with hyaline terminal part half of total length.  

Phasmids with lens-like structure.  

[Ref: Luc, Maggenti & Fortuner  (1988).]

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Distribution:

 

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Economic Importance:

 

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Feeding:

Nurse cell system:  A single, giant cell with a single, giant nucleus.

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Hosts:

 
   
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Life Cycle:

 

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Damage:

 

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Management:

 

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References:

Luc, Maggenti & Fortuner, Rev. Nematol. 11(2):159-176 (1988).

 

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Copyright © 1999 by Howard Ferris.
Revised: May 23, 2005.