About Lesson
Several nematodes act as vectors for transmission of fungi, bacteria and viruses.
Bacterial diseases:
- The bacterium which causes yellow ear rot of wheat (Corynebacterium tritici or Clavibacter tritici) is disseminated by ear cockle nematode, Anguina tritici.
Fig: Yellow ear rot of wheat
Fig: Anguina tritici
- If these two diseases appear together, a complex disease called tundu of wheat occurs.
Fig: Ear Cockle Disease Of Wheat
- Corynebacterium tritici is not capable of dispersal and infection unless it is carried by Anguina tritici.
Fungal diseases:
Similarly, root rot and wilt pathogens such as Phytophthora, Fusarium, Rhizoctonia, Verticillium, etc., are disseminated by nematodes.
Viral diseases:
- Many soil borne viruses are known to be transmitted by the nematodes.
- Xiphenema, Longidorous, Trichodorus and Paratrichodorus are the nematode genera belonging to Dorylaimoidea which are known to transmit plant viruses.
Join the conversation