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.

2023年8月3日 · Nematodes (Gr., nema thread+ eidos, form) are commonly referred to as non-segmented roundworm, threadworm or pinworm, as distinct from flatworm and higher segmented annelids. They are widely distributed, aquatic or terrestrial, parasitic or free-living.

2023年9月20日 · Plant-parasitic nematodes, including genera like Meloidogyne (root-knot nematodes) and Globodera (potato cyst nematodes), are important examples of nematodes. They can damage a wide range of agricultural and horticultural …

Nematodes, commonly known as roundworms, are a group of worms that make up the phylum Nematoda. With well over 15,000 species identified today, they can be found in different habitats ranging from terrestrial to marine environments.

2025年1月7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, beer malts, …

2021年9月30日 · They have described an estimated 20,000 different nematode species, most of which live freely in the soil and feed on bacteria. However, some species do live as parasites in humans, plants and pets. Researchers estimate that millions of different species of nematodes could exist across the globe.

2024年10月1日 · Examples of Nematodes. Here are some examples of notable nematodes: Human Parasitic Nematodes: Ascaris lumbricoides: This large intestinal roundworm causes ascariasis and is transmitted through the ingestion of contaminated food or water. It can lead to malnutrition and intestinal blockage.