nematodes


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nematodes

Unsegmented, threadlike worms of the phylum Nematoda . Many nematodes are parasitic on humans. They include the whipworm Trichuris trichuria , the muscle worm Trichinella spiralis , the intestinal parasite Strongyloides stercoralis , the hook worms Ancylostoma duodenale and Necator americanus , the threadworm Enterobius or Oxyuris vermicularis , the roundworm Ascaris lumbricoides , the filarial worms and the puppy dog worm Toxocara canis .

nematodes (nē´mətōdz),

n parasitic roundworms, such as hookworm and pinworm, that cause disease in humans.
References in periodicals archive ?
After the first description of Onchocerca lupi nematodes in 1967 in a Caucasian wolf (Canis lupis cubanensis) from Georgia (former Union of Soviet Socialist Republics), this nematode has been recognized as the causative agent of canine and feline onchocercosis (3,4).
The fact that nematodes are virtually impossible to eliminate will, for better or for worse, help to naturally maintain a healthy market for nematicide manufacturers.
In a preliminary study, the plant-parasitic nematodes root-knot (Meloidogyne javanica), citrus (Tylenchulus semipenetrans), root-lesion (Pratylenchus spp.
Nematodes are known to respond directionally to various cues, including electrical stimuli.
Nematodes are natural organisms that prey on garden pests and are already present in our soil.
The resistant wheat, however, serves as a trap crop to trick the nematodes into starting their life cycle but then prevents them from reproducing, according to researchers at the University of California.
Because of this problem, we looked for a method that does not require the use of higher animals, and decided to test whether nematodes could be used for ricin detection.
But when the researchers looked at a variety of nematodes, they found the very same types of chemicals being combined and used for communication, said Paul Sternberg, the Thomas Hunt Morgan Professor of Biology at Caltech and senior author on the study.
Nematodes are an incredibly diverse group encompassing numerous intestinal parasites and the widely studied laboratory roundworm C.
Tactics for management of plant-parasitic nematodes continue to rely on nematicides for suppression of population densities.