
Nematode - Wikipedia
Parasitic worms (helminths) are the cause of soil-transmitted helminthiases. They are classified along with arthropods, tardigrades and other moulting animals in the clade Ecdysozoa. Unlike the …
Nematode | Definition, Description, Diseases, & Facts | Britannica
Jan 31, 2026 · 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 …
Nematodes Explained: The Good, the Bad and the Harmful
Oct 15, 2025 · Plant-parasitic nematodes like the root-knot nematode cause an estimated $125 billion in global crop losses annually. However, the damage caused by nematodes that infect humans is far …
Nematodes - Cornell University
The nematode may appear as little more than a biological syringe for its bacterial partner, yet the relationship between these organisms is one of classic mutualism.
What are Nematodes? - Department of Nematology
A small fraction of all nematode species are parasites of humans, livestock or agricultural crops. Consequently, these have attracted the most attention from Nematology researchers.
Nematodes - PMC
The main panel shows the phylogeny of the major nematode groups, information about ecological range and presence of parasites (black bars indicate definitive hosts, grey bars intermediate hosts), and …
Nematodes are the most abundant multicellular animals in the planet. Nematodes have colonized nearly every habitat on earth. Nematodes can exist in extreme environmental conditions. Parasitic …
What Are Nematode Worms and What Do They Do? - Biology Insights
Jun 28, 2025 · Nematode worms, also known as roundworms, are among the most abundant multicellular animals on Earth. These microscopic, unsegmented worms are found in nearly every …
Plant Parasitic Nematodes : USDA ARS
Plant-parasitic nematodes are recognized as one of the greatest threats to crops throughout the world. Nematodes alone or in combination with other soil microorganisms have been found to attack almost …
Nematode overview | UC Agriculture and Natural Resources
The four primary types of nematodes - ring nematode, root lesion nematode, root knot nematode and dagger nematode. Ring nematode. The fatter, short nematode is ring nematode, Mesocriconema …