Tylencholaimus parvus




Rev 08/03/2020

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



                   Tylencholaimus parvus Ahmad & Araki, 2003
 Back to Top

Morphology and Anatomy:



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


Back to Top



Back to Top


Classified as hyphal feeding (Yeates et al., 1993) and probably on more complex fungal structures.   

Wood (1973) observed Tylencholaimus montanus feeding and reproducing on fungi in tissue culture.

Back to Top

Biology and Ecology:

 Okada et al (2005) studied the biology of Tylencholaimus parvus as a representative of K-strategy fungivores.  Population growth rates were determined on nine fungal species on agar and on soil-based media.  Population growth rates of T. parvus on PDA were substantial on three plant-pathogenic fungi, Botrytis cinerea, Fusarium oxysporum and Phoma herbarum. On the soil-based medium, the  fungi, Coprinus cinereus, Flammulina velutipes, F. oxysporum and P. herbarum also supported large population growth rates of T. parvus.

However, T. parvus always had significantly smaller population growth rates than the r-strategist fungivore Aphelenchus avenae, an r-strategic fungivorus nematode, (0-24% of those of A, avanae) on all fungal species tested.. 

Tylencholaimus parvus was able to avoid predation of the two nematophagous Pleurotus species.  It fed on the fungal hyphae and reproduced.  In contrast, A. avenae was killed and consumed by Pleurotus


Back to Top

Life Cycle:


Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level parameters
Back to Top

Ecosystem Functions and Services:


Back to Top



Back to Top


Goodey, Soil and Freshwater Nematodes

Okada, H., Harada, H., Tsukiboshi, T.,  Masaak, A. 2005.  Characteristics of Tylencholaimus parvus (Nematoda: Dorylaimida) as a fungivorus nematode. Nematology 7:843-849.

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 and genera—An outline for soil ecologists. Journal of Nematology 25:315-331

Back to Top

Copyright 1999 by Howard Ferris.
Revised: August 03, 2020.