The toxigenic theory of plant disease explains the occurrence of pathological disturbances in advance of the invading pathogen as the effect of a toxin produced in the course of host-pathogen interaction. A considerable amount of work has been done on such diseases, which are called toxemia; however much of it is still a matter of controversy. Much more research must be done on this subject before many of the concepts involved can be accepted. At present, there is need for studies to show that pathogens can produce the same toxins both in axenic culture and in infection, and that injection with toxins can reproduce the physiological disturbances and the symptoms characteristic of the disease.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.115534 |
| Date | January 1964 |
| Creators | Hoitink, Henricus. A. |
| Contributors | Coulson, J. (Supervisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science. (Department of Agriculture.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: NNNNNNNNN, Theses scanned by McGill Library. |
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