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The nematodes (/ ˈ n ɛ m ə t oʊ d z / NEM-ə-tohdz or NEEM-; Ancient Greek: Νηματώδη; Latin: Nematoda), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitic.
Caenorhabditis is a genus of nematodes which live in bacteria-rich environments like compost piles, decaying dead animals and rotting fruit. The name comes from Greek: caeno- (καινός (caenos) = new, recent); rhabditis = rod-like (ῥάβδος (rhabdos) = rod, wand).
C. elegans and other nematodes are among the few eukaryotes currently known to have operons; these include trypanosomes, flatworms (notably the trematode Schistosoma mansoni), and a primitive chordate tunicate Oikopleura dioica. Many more organisms are likely to be shown to have these operons.
Trichodoridae (stubby-root nematodes, trichodorids) is a family of terrestrial root feeding nematodes, being one of two that constitute suborder Triplonchida. [ 3 ] [ 4 ] They are economically important plant parasites and virus vectors.
Phasmarhabditis (Greek: Phasma = (φάσμα (phantom); rhabditis = (ῥάβδος (rod-like)) is a genus of bacterial-feeding nematodes which are facultative parasites whose primary hosts are terrestrial gastropods (slugs and snails). [1] The name comes from Greek: Phasma- (φάσμα (phantom); rhabditis = rod-like (ῥάβδος (rhabdos).
From Latin dīrus 'fearful; ominous' + fīlum 'thread', Dirofilaria is a genus of nematodes of the superfamily Filarioidea.The first known description of Dirofilaria may have been by Italian nobleman Francesco Birago in 1626 in his Treatise on Hunting: “The dog generates two worms, which are half an arm’s length long and thicker than a finger and red like fire.”
The pinworm (species Enterobius vermicularis), also known as threadworm (in the United Kingdom, Australia and New Zealand) or seatworm, is a parasitic worm.It is a nematode (roundworm) and a common intestinal parasite or helminth, especially in humans. [7]
Trichodorus is a genus of terrestrial root feeding (stubby-root) nematodes in the Trichodoridae family (trichorids), being one of five genera. [2] They are economically important plant parasites and virus vectors.