Rotylenchulidae

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Rotylenchulidae

The females of this family are sausage- or kidney-shaped ectoparasites. The genus Rotylenchulus with the reniform nematode is economically the most important group in the Rotylenchulidae.

The females actually have an intermediate biology between ecto- and endoparasites because they can access deeper root tissue by triggering the formation of giant cells. These absorb nutrients from other parts of the root and are used as a source of food for the females.

The adults are less than 1 mm long. While the females are swollen, the males are vermiform with reduced cephalic sclerotization, stylet and oesophagus.


The following genera are currently entered under Rotylenchulidae: