''Tylenchorhynchus'' is a genus of

nematode The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant-Parasitism, parasitic nematodes also known as eelworms. They are a diverse animal phylum inhab ...

s including many species of plant parasites. The classification of stunt nematodes - those including the genus ''Tylenchorhynchus'' - is unstable; many newly discovered species within this genus are reconsidered to be actually subspecies. Stunt nematodes such as ''Tylenchorhynchus'' and the closely related genera, '' Anguillulina'' and '' Merlinia'', include more than 250 known species. Members of these genera possess similar anatomy and may be easily mistaken for one another. Some debate has led to the classification of single species under different names in two distinct genera (e.g. ''Tylenchorhynchus cylindricus'' is ''Anguillulina dubia'').

List of species

* '' Tylenchorhynchus brevilineatus'' * '' Tylenchorhynchus claytoni'' – the

tobacco Tobacco is the common name of several plants in the genus '' Nicotiana'' of the family Solanaceae, and the general term for any product prepared from the cured leaves of these plants. More than 70 species of tobacco are known, but the ...

stunt nematode * '' Tylenchorhynchus cobb'' * '' Tylenchorhynchus cylindricus'' * '' Tylenchorhynchus dubius'' * '' Tylenchorhynchus magnicoda'' * '' Tylenchorhynchus maximus'' * '' Tylenchorhynchus nudus'' * '' Tylenchorhynchus phaseoli'' * '' Tylenchorhynchus vulgaris'' * ''

Tylenchorhynchus zeae ''Tylenchorhynchus zeae'' is a plant pathogenic nematode infecting pearl millet. References External links Nemaplex, University of California - Tylenchorhynchus zeae Agricultural pest nematodes Pearl millet diseases Tylenchida ...

Agricultural diseases

''Tylenchorhynchus'' are soil dwelling stunt nematodes. They inhabit the same soil as plant root systems in which they can cause stressing or disease in plants. About 8% of the studied species are

parasitic Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has c ...

. Agricultural problems associated with Tylenchorhynchus spp. affect many species such as

soybean The soybean, soy bean, or soya bean (''Glycine max'') is a species of legume native to East Asia, widely grown for its edible bean, which has numerous uses. Traditional unfermented food uses of soybeans include soy milk, from which tofu an ...

tea Tea is an aromatic beverage prepared by pouring hot or boiling water over cured or fresh leaves of '' Camellia sinensis'', an evergreen shrub native to East Asia which probably originated in the borderlands of southwestern China and northe ...

oat The oat (''Avena sativa''), sometimes called the common oat, is a species of cereal grain grown for its seed, which is known by the same name (usually in the plural, unlike other cereals and pseudocereals). While oats are suitable for human con ...

alfalfa Alfalfa () (''Medicago sativa''), also called lucerne, is a perennial flowering plant in the legume family Fabaceae. It is cultivated as an important forage crop in many countries around the world. It is used for grazing, hay, and silage, as w ...

sweet potato The sweet potato or sweetpotato (''Ipomoea batatas'') is a dicotyledonous plant that belongs to the Convolvulus, bindweed or morning glory family (biology), family, Convolvulaceae. Its large, starchy, sweet-tasting tuberous roots are used as a r ...

sorghum ''Sorghum'' () is a genus of about 25 species of flowering plants in the grass family (Poaceae). Some of these species are grown as cereals for human consumption and some in pastures for animals. One species is grown for grain, while many othe ...

rose A rose is either a woody perennial flowering plant of the genus ''Rosa'' (), in the family Rosaceae (), or the flower it bears. There are over three hundred species and tens of thousands of cultivars. They form a group of plants that can be ...

lettuce Lettuce (''Lactuca sativa'') is an annual plant of the family Asteraceae. It is most often grown as a leaf vegetable, but sometimes for its stem and seeds. Lettuce is most often used for salads, although it is also seen in other kinds of food, ...

grape A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus ''Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began perhaps 8,000 years ago, ...

elm Elms are deciduous and semi-deciduous trees comprising the flowering plant genus ''Ulmus'' in the plant family Ulmaceae. They are distributed over most of the Northern Hemisphere, inhabiting the temperate and tropical-montane regions of North ...

s, and

citrus ''Citrus'' is a genus of flowering plant, flowering trees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops such as Orange (fruit), oranges, Lemon, lemons, grapefruits, pomelos, and lim ...

References

External links

''The Manual of Agricultural Nematology'' on Google Books
{{Taxonbar, from=Q3719808 Agricultural pest nematodes Grape pest nematodes Parasites of plants Secernentea genera Tylenchida