Pathogenesis by fungi and by parasitic plants: Similarities and differences |
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| Authors: | A M Mayer |
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| Institution: | (1) Dept. of Plant and Environmental Sciences, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel |
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| Abstract: | The processes by which fungi and parasitic plants infect their plant host are compared. The steps considered are: location
of the host by the pathogen, the concept of the haustorium, attachment of the pathogen to the host, mechanism of penetration
into the host, responses of the host to infection by fungi and by parasitic plants, and the suppression of the host response
by the pathogen. Although superficially similarities between fungal infection and infection by parasitic plants exist, the
underlying mechanisms appear to be different and only in the penetration step are similar strategies used, including the use
of lytic enzymes. These differences are important when seeking ways of combating the parasitic plants. The strategies used
against the parasitic plants must be different from those used to combat fungal infections and should not be based only on
analogies with host resistance to fungal pathogens.
http://www.phytoparasitica.org posting Nov. 2, 2005. |
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| Keywords: | Orobanche Striga Cuscuta Viscum pathogenesis fungi haustorium infection attachment to host host penetration host responses suppression of host responses |
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