The nematodes (/ ˈnɛmətoʊdz / 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.

2025年1月7日 · Nematode, any worm of the phylum Nematoda. Nematodes are among the most abundant animals on Earth. They occur as parasites in animals and plants or as free-living forms in soil, fresh water, marine environments, and even such unusual places as vinegar.

2018年7月1日 · Soil-dwelling nematodes are the most common culprits, but some species can damage plant roots, stems, foliage, and flowers. No matter where they feed, these tiny worms can seriously damage to...

Nematodes have been reported from every continent on earth and occur in deserts, swamps, the oceans, the tropics and Antarctica. Usually nematodes are invisible to all but a few specialists because most are microscopic and transparent. How many nematodes are there?

Nematodes are a diverse group of worms that make up the phylum Nematoda. Otherwise known as roundworms, nematodes live as either free-living organisms in terrestrial and aquatic organisms or as parasites in plants and animals.

2024年10月1日 · Nematodes are a diverse group of organisms known for their elongated, cylindrical bodies and unsegmented structure. These worm-like creatures are found in various environments, with many species inhabiting soil and water.

The meaning of NEMATODE is any of a phylum (Nematoda or Nemata) of elongated cylindrical worms parasitic in animals or plants or free-living in soil or water —called also roundworm.

To today’s experimental biologists, the best known nematode is Caenorhabditis elegans, one of the major model organisms for genetic and biomedical research, the first metazoan with a sequenced genome and a key partner in the winning of three Nobel prizes — for the discoveries of programmed cell death and RNA interference, and for the ...

Nematodes are unsegmented roundworms that belong to the phylum Nematoda, within the super-phylum Ecdysozoa, along with arthropods and other organisms that build and shed cuticle, in a process called ecdysis (Aguinaldo et al., 1997). Nematodes are not only highly diverse, but also complex and biologically specialized metazoans.

2021年7月4日 · The nematodes are invertebrates belonging to phylum Nematoda. They have unsegmented thread-like body. Many of them are parasitic, living inside their host. Together with other parasitic worms such as flatworm s, cestode s, and trematode s, the nematodes belong to a group of helminths.