Zygotylenchus

 

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Rev 10/30/2019

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

      Tylenchida
       Tylenchina
        Tylenchoidea
         Pratylenchidae
          Pratylenchinae

           Zygotylenchus Siddiqi, 1963

    Synonyms:
      Mesotylus de Guiran, 1964

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Morphology and Anatomy:

Strongly resembles Pratylenchus but with female gonad paired.

.
  • Body length under 1 mm.  
  • No sexual dimorphism of anterior body.
  • Deirids absent.  
  • Lip region truncate, flattened anteriorly.  By SEM, face characterized by fusion of homologous medial lip sectors together and with oral disc.  Labial sclerotization strong. 
  • Esophageal glands in line; long ventral overlap of the intestine.  Esophago-intestinal valve not well developed.  
  • Phasmids about mid-tail.  

Female:

  • Genital tract with two branches equally developed - didelphic, amphidelphic  
  • Tail tip cylindrical, rounded

Male: 

  • Gubernaculum not protruding.  
  • Caudal alae terminal.
  • Tail tip truncate to rounded.

     [Ref: Luc,  (1987); Andrassy, 2007]

 


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:
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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:

Andrássy, I. 2007. Free-living Nematodes of Hungary (Nematoda Errantia)  Vol. II.  Hungarian Natural History Museum. Budapest. Hungary, 496 pp.

Luc, M.  1987.  Rev. Nematol. 10:203-218.

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Copyright 1999 by Howard Ferris.
Revised: October 30, 2019.