nematode


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roundworm

 [round´werm]
any member of the class nematoda, somewhat resembling common earthworms in appearance; many are found as parasites in humans or other animals. Those most frequently infecting humans include Ascaris lumbricoides (see ascariasis); Enterobius vermicularis (the pinworm; see enterobiasis); the hookworm (see hookworm disease); the filaria (see filariasis); and the trichina (see trichinosis).

nem·a·tode

(nem'ă-tōd),
A common name for any roundworm of the phylum Nematoda.

nematode

/nem·a·tode/ (nem´ah-tōd) a roundworm; any individual of the class Nematoda.

nematode

(nĕm′ə-tōd′, nē′mə-)
n.
Any of numerous worms of the phylum Nematoda, having unsegmented cylindrical bodies often narrowing at each end, and including free-living species that are abundant in soil and water, and species that are parasites of plants and animals, such as eelworms, pinworms, and hookworms. Also called roundworm.

nem′a·tode′ adj.

nematode

[nem′ətōd]
Etymology: Gk, nema + eidos, form
a multicellular, parasitic animal of the phylum Nematoda. All roundworms belong to the phylum, including Ancylostoma duodenale, Ascaris lumbricoides, Enterobius vermicularis, Necator americanus, Strongyloides stercoralis, and several other species.

nematode

Roundworm, see there.

nem·a·tode

(nem'ă-tōd)
A common name for any roundworm of the phylum Nematoda.

nematode

any member of the phylum Nematoda, containing roundworms such as ASCARIS.

Nematode

A type of roundworm with a long, unsegmented body, usually parasitic on animals or plants.

nem·a·tode

(nem'ă-tōd)
A common name for any roundworm of the phylum Nematoda.

nematode

a roundworm; any individual organism of the class Nematoda. Parasitism with any of the worms in this group represents a significant proportion of the diseases of animals. Includes: Ancylostoma, Ascaris, Capillaris, Dictyocaulus, Dioctophyma, Dirofilaria, Habronema, Haemonchus, Metastrongylus, Muellerius, Onchocerca, Ostertagia, Oxyuris, Parafilaria, Parascaris, Protostrongylus, Rhabditis, Skrjabinema, Spirocerca, Strongyloides, Strongylus, Syngamus, Thelazia, Trichuris, Toxocara, Trichinella, Trichostrongylus.

nematode galls
hard, fibrous excrescences produced in the seedheads of grasses by chronic inflammation created by an invasion by larvae of grass seed nematodes, e.g. Anguina spp.
grass-seed nematode
the grass seed nematode Anguina lolii infests Wimmera ryegrass and causes a fatal poisoning in animals eating the grass. Called also A. fenesta, A. agrostis. See also loliumrigidum.
References in periodicals archive ?
Nematode infection can result in different above-ground symptoms in plants such as leaf chlorosis, patchy and stunted growth, wilting and susceptibility to other pathogens (Webster, 1995).
The most important examples of migratory nematodes are the genera of lesion nematode (Pratylenchus), burrowing nematodes (Radopholus) and rice root nematode (Hirschmanniella).
Soil sampling provides information about the nematode pathotypes existed in the fields and allows selecting for growing potato varieties with proper resistance.
observed in Poland and showed the lack of potato varieties resistant to pathotype Ro5 on the Polish market, which indicate the need of breeding new varieties with multiple nematode resistances.
Pathogenicity of root knot nematode population infecting passion fruit was tested under net-house conditions during July-Dec, 2014.
The reproduction factor (R) = Pf/Pi, where Pf represents final and Pi initial population of nematode and pathogenicity was determined according to Vovlas et al.
As a result, the researchers found that plant stem cell function seemed to be abnormally activated by nematode infestation.
The completion of this study allowed us to identify sixteen genera of nematode in ten vineyards of western Algeria represented by: Pratylenchus, Paratylenchus, Scutellonema, Tylenchorhynchus, Xiphinema, Helicotylenchus, Aphelenchoides, Aphelenchus, Ditylenchus, Psilenchus, Tylenchus Rhabditis, Cephalobus, Chiloplacus, Mononchus and Dorylaimus.
shoot length (cm), root length (cm), shoot weight (g), root weight (g), number of galls per plant, final nematode population and root knot index using the following 1 to 5 scale (Taylor and Sasser, 1978).
reniformis, are the main nematode species driving economic losses in this crop by limiting the productivity and longevity of passion fruit trees (SHARMA et al.
Now the team is testing a solution of nematodes and fire gel in one spray application," says Cottrell.