Abstract
Although plants in nature are continually exposed to diverse fungal spores as potential parasites, only few of these fungi successfully establish a distinct or specific relationship of parasitism which allows them to invade, grow and reproduce on a given plant species; in order to survive, higher plants have evolved defense mechanisms which operate against all but the few specialized parasites that can cause disease in a given species. Conceptually, a specific host-parasite relationship appears to have originated from a kind of co-evolution between both organisms. A mechanism that determines such a parasitical specificity is comprised of three basic processes (Nishimura and Kohmoto, 1983): a) Spores of a fungal parasite release on germination a host recognition factor, for example, host-specific toxin (HST) in advance of invasion, b) the released signal factor selectively binds to receptor sites in the host cells, and c) the accessible state or susceptibility of host cells to possible hyphal invasion is simply disposed by the signal transduction.
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References
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© 1989 Springer-Verlag Berlin Heidelberg
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Kohmoto, K., Otani, H., Kodama, M., Nishimura, S. (1989). Host Recognition : Can Accessibility to Fungal Invasion be Induced by Host-Specific Toxins Without Necessitating Necrotic Cell Death?. In: Graniti, A., Durbin, R.D., Ballio, A. (eds) Phytotoxins and Plant Pathogenesis. NATO ASI Series, vol 27. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-73178-5_19
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DOI: https://doi.org/10.1007/978-3-642-73178-5_19
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