Deladenus

 

Contents

 

Rev: 05/18/2024

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle
Return to Deladenus Menu Ecosystem Functions and Services
Distribution Management
Return to Neotylenchidae Menu Feeding  References
    Go to Nemaplex Main Menu   Go to Dictionary of Terminology

Classification:

Chromadorea
  Chromadoria
   Tylenchida
       Hexatylenchina
Sphaerularioidea
        Neotylenchidae
          Deladenus Thorne, 1941

Type species of the genus; Deladenus durus (Cobb, 1922) Thorne, 1941

Synonym

Dotylaphus Andrassy, 1958

Back to Top

Morphology and Anatomy:

Ref: Jalainasab, et al., 2020

 

Females:

  
   

 

Males:  

Body size range for the species of this genus in the database - Click:
Back to Top

Distribution:

Often associated with bark of dead trees.

Back to Top

Feeding:

 Wood (1973) observed Deladenus durus feeding and reproducing on fungi in culture.

Parasites of insects

Some species are considered to have alternative life cycles, one as insect parasitic nematodes and another thought to feed on fungi, algae, or root hairs of higher plants. Examples: Fergusobia, Deladenus (Siddiqi, 2000; Yeates et al., 1993).

Deladenus nitobei is an internal parasite of a wood wasp, Sirex nitobei.. Parasitized wasps are collected as they emerge from dead logs. The parasitism results in a reduction in body size of females (Kanzaki et al., 2018).

 
Back to Top

Biology and Ecology:

Back to Top

Life Cycle:

 
 
For Ecophysiological Parameters for this genus, click 
 
Back to Top

Ecosystem Functions and Services:

 

Back to Top

Management:

 
Back to Top

References:

Bedding, R. A. and Akhurst, R. J. 1978. Geographical distribution and host preferences of Deladenus species (Nematoda: Neotylenchidae) parasitic in siricid woodwasps and associated hymenopterous parasitoids. Nematologica 24:286-94.

Chitambar, J. J. 1991. On the genus Deladenus Thorne, 1941 (Nemata: Allantonematidae). Review of the mycetophagous stage. Revue de Nematologie 14:427-444

Fenili, R.; Mendes, C. J.; Miquelluti, D. J.; Mariano-da-Silva, S.; Xavier, Y.; Ribas, H. S.; Furlan, G.. 2000. Deladenus siricidicola, Bedding (Neotylenchidae) parasitism evaluation in adult Sirex noctilio, Fabricius, 1793 (Hymenoptera: Siricidae). Revista Brasileira de Biologia  61: 683-687.

Jalainasab, P., Esmaelli, M., Ye, W., Heydari, R. 2020. Description of Deladenus gilanica n. sp. (Hexatylina: Neotylenchidae) isolated from wood of black pine in Northern Iran. J. Nematology 52: | DOI: 10.21307/jofnem-2020-065

Kanzaki, N., S.E. TanakaM. ItoK. TanakaB. Slippers and M. Tabata. 2018. Some additional bionomic characters of Deladenus nitobei. Nematology 20:597-599.

Siddiqi, M. R. 2000. Tylenchida: Parasites of plants and insects, 2nd ed. Wallingford: CABI Publishing.

Wood, F.H. 1973. Nematode feeding relationships: Feeding relationships of soil-dwelling nematodes. Soil Riol. Biochem. 5: 593-601.

Yeates, G.W., T. Bongers, R.G.M. de Goede, D.W.Freckman and S.S. Georgieva. 1993. Feeding habits in soil nematode families - an outline for ecologists. Journal of Nematology 25:315-331.


  

Back to Top

 

 

 

 

Copyright © 1999 by Howard Ferris.
Revised: May 18, 2024.