Heterodera dunensis

  

Contents

  

Rev 10/16/2023

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

Tylenchida
       Tylenchina
        Tylenchoidea
         Heteroderidae
          Heteroderinae

           Heterodera dunensis Singh, Karssen, Couvreur & Bert, 2020

A  member of the Schachtii group of Heterodera spp.

Synonyms:
    

Review general characteristics of the genus Heterodera.

 

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Morphology and Anatomy:

General Characteristics of the Schachtii Group of Heterodera

Cysts lemon-shaped
Ambifenestrate
Bullae well-developed
Underbridge well-developed
vulval slit long
J2 incisures 4
Dicotyledonous hosts

(Handoo and Subbotin, 2018; Subbotin et al., 2010, Subbotin et al. 2023)

 

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Females:

  • Cyst lemon-shaped to ovoid
  • Vulval cone dome-shaped
  • Cysts ambifenestrate
  • Bullae prominent
  • Underbridge strong
  • Vulval slit long
  • Eggs retained in cyst, no egg sac

Second stage Juveniles

  • Slightly offset, dome-shaped labial region with three annuli,
  • Lateral incisures 4
  • Stylet relatively long
  • short tail (35-45 um), and 46 to 51% of tail as hyaline portion.

Males:  

  • Not found

Ref: Singh et al., 2020

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

Described from the roots of a succulent plant, sea grape (Tetraena fontanessi) on coastal dunes of Gran Canaria, Canary Islands.


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Economic Importance:

 

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Feeding:


      

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Hosts:

Hosts of the Schachtii group of Heterodera spp. are mainly dicotyledonous plants. In this case, Tetraena fontanessi, sea grape.
 
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:

Handoo, Z.A., Subbotin, S.A. 2018. Taxonomy, identification and principal species. Chapter 15 in Perry, R.N. Moens, M., and Jones, J.T.(eds)  Cyst Nematodes. CAB International.

Singh, P.R., Karssen, G., Couvreur, M. and Bert, W. 2020 Morphological and molecular characterization of Heterodera dunensis n. sp. (Nematoda: Heteroderidae) from Gran Canaria, Canary Islands J. Nematology 52: e2020-98.

Subbotin, S,A., Mundo-Ocampo, M., Baldwin, J.G. 2010. Systematics of Cyst Nematodes (Nematode: Heteroderinae). Nematology Monographs and Perspectives Volume 8B, D.J. Hunt and R.N. Perry (eds) Brill, Leiden, The Netherlands 512p

Subbotin, S.A., Roubtsova, T.V., Bostock, R.M., Maafi, Z.T., Chizhov, V.N., Palomares-Rius, J.E., Pablo Castillo, P. 2023. DNA barcoding, phylogeny and phylogeography of the cyst nematode species of the Schachtii group from the genus Heterodera (Tylenchida: Heteroderidae). Nematology (in press).

 

 

 

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