Rev 09/12/2023
Key to the genera of the family Tylenchidae
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Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:
Commonly occurring in most soils.
Probably fairly small. Most reports are about occurrence and abundance rather than documenting any effects on growth.
Ectoparasites of plant roots, root hairs, algae, etc.
Yeates et al. (1993a) described Tylenchus as plant feeders (algal, lichen (algal or fungal component), or moss feeders that feed by piercing), or hyphal feeders.
Yeates et al. (1993b): classified Tylenchus spp. as "plant associated", indicating that they were found in the rhizospheres of plants.
Wood (1973a): Coslenchus costatus was observed feeding and reproducing on seedlings of fescue tussock and rye grass, on alfalfa callus tissue and moss (Tortula princeps and Bryum sp.). It was observed feeding on fungi, but it was only in two occasions for a short time.
Wood (1973b): Coslenchus costatus was observed feeding ectoparasitically on root hairs, epidermal root cells and occasionally on sloughed root-cap cells of rye grass seedlings growing in agar. It was observed feading on seedlings of white clover, suckling clover, rye grass, crested dogstail, Yorkshire fog, timothy, goosegrass, sweet vernal, browntop, cocksfoot, fescue tussock, chewings fescue.
Ecophysiological Parameters:
CIH Descriptions of Plant-parasitic Nematodes Set 6, No. 80 (1976)
Khera, S., Zuckermann, B.M. (1962), Studies on the culturing of certain ectoparasitic nematodes on plant callus tissue, Nematologica, 8, 272-274
Khera, S., Zuckermann, B.M. (1963), In vitro studies of host-parasite relationships of some plant-parasitic nematodes, Nematologica, 9, 1-6
Siddiqi, M.R. 1978. The Unusual Position of the Phasmids in Coslenchus costatus (De Man, 1921) Gen. N., Comb. N. and Other Tylenchidae (Nematoda: Tylenchida). Nematologica 24:449-455.
Thorne, G. (1961), Tylenchinae, chapter 5 in: Principles of Nematology, McGraw-Hill Book Company Inc., New York - Toronto - London, 553 pp.
Wood, F.H. (1973a), Life cycle and host-parasite relationships of Aglenchus costatus (de Man, 1921) Meyl, 1961 (Nematoda, Tylenchidae), New Zealand Journal of Agricultural Research, 16, 373-380
Wood, F.H. (1973b), Nematode feeding relationships, feeding relationships of soil-dwelling nematodes, Soil Biology and Biochemistry, 5, 593-601
Yeates, G.W., Bongers, T., Goede, R.G.M. de, Freckman, D.W., Georgieva, S.S. (1993a), Feeding habits in soil nematode families and genera - an outline for soil ecologists, Journal of Nematology, 25 (3): 315-331.
Yeates, G.W., Wardle, D.A., Watson, R.N. (1993b), Relationships between nematodes, soil microbial biomass and weed-management strategies in maize and asparagus cropping systems, Soil Biology and Biochemistry, 25, 869-876.