Ditylenchoides   

  

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Rev 11/04/2024

  Classification Hosts
Morphology and Anatomy Life Cycle

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 Economic Importance Damage
Distribution Management
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Classification:

  Tylenchida
   Tylenchina
    Tylenchoidea
     Anguinidae
      Anguininae

          Ditylenchoides Subbotin & Ryss, 2024

Type species of the genus: Ditylenchoides destructor (Thorne, 1945) Subbotin & Ryss, 2024


    Synonyms:

Type species Transferred form Ditylenchus destructor to Ditytlenchoides destructor by Subbotin and Ryss, 2024
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Morphology and Anatomy:

Ditylenchoides is considered a highly morphologically and molecularly diverged genus within the Anguinoidea. It is well distanced from the Ditylenchus and other Anguinoidea genera in the combination of its biological, molecular and morphological characters. All species are fungal feeders and some infect underground plant parts. Ditylenchoides gen. n. contains the larger number of species in the superfamily. This number will likely be increased after molecular characterisation of other known Ditylenchus-like nematodes and descriptions of new species (Subbotin and Ryss, 2024).

Characteristics of the genus per Subbotin and Ryss, 2024:

 




Female: 

  • Monodelphic-prodelphic Ovary straight, without distinct flexures, its posterior part with one row of oocytes.
  • Spermatheca elongate, with small sperm cells with nuclei occupying most of cells. Crustaformeria in form of quadricolumella, four rows of four cells each.
  • Vulva a transverse slit, vagina perpendicular to ventral body wall. Postvulval uterine sac 0.5-3.1 times longer than the vulval body diam.
  • Female tail conical or subcylindrical, terminus mostly rounded or rarely pointed.

 

Female gonad with post-uterine sac.
 

Male: 

  • Male bursa leptoderan, adanal to subterminal, not reaching tail tip.

Body size range for the species of this genus in the database - Click:
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Distribution:

Distributed in temperate and tropical regions.

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Economic Importance:

 

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Feeding:

Mostly fungal feeders, parasites of underground plant parts. Some species are associated with insects. Infective stages are juveniles and adults.

 

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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 
 
Long term persistence of plant-parasitic species may be the ability of some species to feed on fungi and others to survive in an anhyhrobiotic state in dry host tissues,
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Damage:

 

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Management:

 

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References:

Subbotin, S.A. and Ryss, A.Y. 2024. Revision of the genus Ditylenchus Filipjev, 1936: Ditylenchoides gen. n. and Paraditylenchus gen. n. (Nematoda: Anguinoidea). Russian Journal of Nematology, 32: 91-102.

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Copyright © 1999 by Howard Ferris.
Revised: November 04, 2024.