Nematode - Wikipedia
网页The nematodes (/ ˈnɛmətoʊdz / NEM-ə-tohdz or NEEM-; Greek: Νηματώδη; Latin: Nematoda), roundworms or eelworms constitute the phylum Nematoda. [3][4] They are a diverse animal phylum inhabiting a broad range of environments. Most species are free-living, feeding on microorganisms, but many species are parasitic. [3]
Nematode | Definition, Description, Diseases, & Facts | Britannica
网页2024年9月18日 · 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. Learn more about nematodes, including the diseases they cause.
Nematodes: Classification, Structure, and Characteristics
网页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.
What are Nematodes? | Department of Nematology
网页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.
Nematodes - PMC - National Center for Biotechnology Information
网页2013年10月7日 · What is a nematode? True to their name, nematodes generally have a body that is long, narrow and threadlike (‘nema’ is Greek for thread), but not segmented like that of earthworms.
Nematode Identification Techniques and Recent Advances
网页2020年9月24日 · Wherever possible, emphasis has been given to nematodes of agricultural significance. We show that these alternative methods have aided nematode identification and raised our understanding of nematode diversity and phylogeny.
28.4B: Phylum Nematoda - Biology LibreTexts
网页2023年10月31日 · Key Points. Nematodes are in the same phylogenetic grouping as the arthropods because of the presence of an external cuticle that protects the animal and keeps it from drying out. There are an estimated 28,000 species of nematodes, with approximately 16,000 of them being parasitic.
Introduction to Nematodes - UC Davis
网页Nematodes are invertebrate roundworms that inhabit marine, freshwater, and terrestrial environments. They comprise the phylum Nematoda (or Nemata) which includes parasites of plants and of animals, including humans, as well as species that feed on bacteria, fungi, algae, and on other nematodes.
What is a Nematode? - University of Nebraska–Lincoln
网页The nematode digestive system is generally divided into three parts, the stomodeum, intestine, and proctodeum. The stomodeum consists of the “mouth and lips”, buccal cavity, and the pharynx (esophagus).
Nematodes: Current Biology - Cell Press
网页2013年10月7日 · What is a nematode? True to their name, nematodes generally have a body that is long, narrow and threadlike (‘ nema ’ is Greek for thread), but not segmented like that of earthworms.