Ditylenchus minutus

  

Contents

  

Rev 07/04/2023

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

      Tylenchida
       Tylenchina
        Tylenchoidea
         Anguinidae
          Anguininae
          
 Ditylenchus minutus Husain & Khan, 1967

 

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Morphology and Anatomy:


 

  

Ditylenchus minutus: A: Female esophageal region; B: Male tail, ventral view; C: Female tail (from Husain and Khan, 1967)

   Males:

  • Similar in appearance to females.
  • Monorchic, testis outstretched spermatocytes serially arranged.
  •  Spicules paired, ventrally arcuate, cephalated, 10-12 um long.
  • Gubernaculum simple, trough-shaped, 4-5 um long.
  • Bursa crenate, enveloping <30% of ail length.
  • Tail ventrally arcuate, regularly tapering to subacute terminus.

 

Ref: Husain and Khan, 1967

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


 

Females:

  • Body cylindrical, regularly tapering towards both extremities.
  • Cuticle finely annulated. Lateral field marked by four incisures.
  • Lip region slightly set off, striated.
  • Stylet weak, with basal knobs. DEGO close to the stylet base.
  • Procorpus a slender tube ending in an oval valvulated median bulb.
  • Isthmus long, encircled by a nerve ring posterior to its middle.
  • Basal esophageal bulb distinctly set off from the intestine.
  • Excretory pore 71 um from anterior of body.
  • Monodelphic-prodalphic; ovary outstretched with oocytes arranged in a single file.
  • Vulva a transverse slit. 
  • Postuterine sac about twice the vulvar-body width long, extending half way from vulva to anus.
  • Rectum half or slightly less than half the ABD long.
  • Tail elongate-conoid with sub-acute terminus.
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Distribution:

Described from soil around roots of Punica granatum in Ghazipur, U.P., India.

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Economic Importance:

 

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Feeding:

  Stylet appearing slender and quite weak; probably ectoparasitic om thin-walled cells and root hairs; could be fungivorous.

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Hosts:


 

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

 

     

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Damage:

 

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Management:

Host Plant Resistance, Non-hosts and Crop Rotation alternatives:

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

 

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References:

Husain, S.I.  and Khan, A.M. 1967. A new subfamily, a new subgenus and eight new species of nematodes from India belonging to superfainily Tylenchoidea1. Proc. Helminthol Soc. Washingtom 34:175-186.

 

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Copyright 1999 by Howard Ferris.
Revised: July 04, 2023.