Nematology 100: LECTURE 6

Rev. 05/07/2015

Nematodes Parasites of Higher Plants

Migratory Ectoparasites - Criconematoidea

Criconematoidea

Criconematinae:

    Criconemoides, Criconema, Hemicriconemoides:

Hemicycliophorinae:

    Hemicycliophora

Paratylenchinae:

    Paratylenchus, Gracilacus

All these nematodes are or have:

    1. Relatively sedentary

    2. Long stylets - deeper feeding

    3. Single ovary - compare with Dolichodoridae, Hoplolaimidae.

    4. Reduced males, probably not feeding, rare in some cases.

    5. Relationship to plant vigor

        Predisposition: e.g. Bacterial canker complex - effects, factors involved

Superfamily:  Criconematoidea

Family Criconematidae

        Subfamily Criconematinae

                  Mesocriconema xenoplax

                            Hemicriconemoides

Subfamily: Hemicycliophorinae

Hemicycliophora arenaria

Family Tylenchulidae

Subfamily Paratylenchinae

Paratylenchus hamatus

 

Slides: on migratory ectoparasites