''Tylenchorhynchus'' is a genus of

nematode The nematodes ( or ; ; ), 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. Parasitic worms (h ...

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'' is a genus of nematodes 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 reco ...

'' * '' Tylenchorhynchus maximus'' * '' Tylenchorhynchus nudus'' * '' Tylenchorhynchus phaseoli'' * '' Tylenchorhynchus vulgaris'' * '' Tylenchorhynchus zeae''

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 (at least some of the time) on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The ent ...

. 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. Soy is a staple crop, the world's most grown legume, and an important animal feed. Soy is a key source o ...

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 south-western China and nor ...

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). Oats appear to have been domesticated as a secondary crop, as their seeds ...

alfalfa Alfalfa () (''Medicago sativa''), also called lucerne, is a perennial plant, 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, ...

sweet potato The sweet potato or sweetpotato (''Ipomoea batatas'') is a dicotyledonous plant in the morning glory family, Convolvulaceae. Its sizeable, starchy, sweet-tasting tuberous roots are used as a root vegetable, which is a staple food in parts of ...

sorghum ''Sorghum bicolor'', commonly called sorghum () and also known as great millet, broomcorn, guinea corn, durra, imphee, jowar, or milo, is a species in the Poaceae, grass genus ''Sorghum (genus), Sorghum'' cultivated for its grain. The grain i ...

rose A rose is either a woody perennial plant, perennial flowering plant of the genus ''Rosa'' (), in the family Rosaceae (), or the flower it bears. There are over three hundred Rose species, species and Garden roses, tens of thousands of cultivar ...

lettuce Lettuce (''Lactuca sativa'') is an annual plant of the family Asteraceae mostly grown as a leaf vegetable. The leaves are most often used raw in Green salad, green salads, although lettuce is also seen in other kinds of food, such as sandwiche ...

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 approximately 8,0 ...

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

s, and

citrus ''Citrus'' is a genus of flowering trees and shrubs in the family Rutaceae. Plants in the genus produce citrus fruits, including important crops such as oranges, mandarins, lemons, grapefruits, pomelos, and limes. ''Citrus'' is nativ ...

References

External links

''The Manual of Agricultural Nematology'' on Google Books
{{Authority control Agricultural pest nematodes Grape pest nematodes Parasites of plants Secernentea genera Tylenchida