Xiphinema | |
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Xiphinema parasimile female anterior | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Nematoda |
Class: | Enoplea |
Order: | Dorylaimida |
Family: | Longidoridae |
Genus: | Xiphinema Cobb, 1913 |
Species | |
See text |
Xiphinema is a genus of ectoparasitic root nematodes commonly known as dagger nematodes.[1] The genus is of economic importance on grape, strawberry, hops and a few other crops. Major species include X.americanum, X.diversicaudatum, X.index, X.italiae and X.pachtaicum.[2] They can be easily recognized by their long bodies and stylets which are long enough to reach the vascular tissue of plants.[3] Different members of the genus have been shown to induce moderate to large amounts of root damage through root penetration, which in some species results in the formation of galls.[2] They are of agricultural concern because they are vectors of nepoviruses, transferring them during feeding.[4] Efforts to study these nematodes in more detail have proved problematic in some species due to difficulties in maintaining populations in a greenhouse environment.[3]