Gall Formation on Cirsium arvense by Ditylenchus dipsaci

Authors

  • A. K. Watson
  • J. D. Shorthouse

Abstract

Ditylenchus dipsaci was found to cause gall formation on the stems of Cirsium atvense. The galls were characterized by extensive hypertrophy and hyperplasia, differentiation of nutritive tissue, nuclear modification, and a central cavity containing nematodes. These findings emphasize the importance of host response in investigations of host-parasite interactions and suggest that D. dipsaci may be evolving a host race by reproductive isolation within the confines of a plant gall. Key Words: host race, stem and bulb nematode, histopathology.

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Published

1979-01-15

Issue

Vol. 11, No. 1 (January 1979)

Section

Articles

License

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