Xiphinema

Xiphinema
Xiphinema parasimile female anterior
Scientific classification Edit this 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]

  1. ^ Whitehead, A.G. 1998. Plant Nematode Control
  2. ^ a b Evans, K., Trudgill, D.L., Webster, J.M. 1998. Plant Parasitic Nematodes in Temperate Agriculture.
  3. ^ a b Xiphinema at Nemaplex, University of California
  4. ^ Taylor, C.E., Robertson, W.M., 1970. Sites of Virus Retention in the Alimentary Tract of the Nematode Vectors, Xiphinema diversicaudatum (Micol.) and X.index (Thorne and Allen), Annals of Applied Biology (1970),66, 375-380)