Nematology 100: LECTURE 13

Rev. 10/14/2008

Nematodes Parasites of Higher Plants

       Semiendoparasites - Tylenchulidae and Hoplolaimidae

Commonalities Among These Groups

Tylenchulidae - Tylenchulinae

        Tylenchulus
2 species in genus
            T. semipenetrans

 

Male juveniles and males are non-feeding; female juveniles feed as ectoparasites.

Become semiendoparasitic as young females; establish nurse cell system at root pericycle; posterior part of mature female body swollen on outside of root.

Hoplolaimidae - Rotylenchulinae

        Rotylenchulus
10 species in the genus
            R. reniformis

 

Juvenile stages and males are non-feeding.

Become semiendoparasitic as young females; establish nurse cell system at root pericycle; posterior part of mature female body swollen on outside of root.

 

Pratylenchidae
        Nacobbus
2 species in the genus
          N. aberrans

 

Migratory endoparasites as juvenlies.

Enlarged sedentary endoparasites as adult females; root galling response.

Slides: semiendoparasites