Mechanisms in Systemic Induced Disease Resistance
Systemic induced disease resistance in whole plants has been observed with a number of plant pathogen systems (for a review see Kuc 1987). The best resistance effects against diseases caused by viruses, bacteria and fungi have been achieved by preinfection with the same or different microorganisms. To explain these effects, systemic signals (chemical and/or electrical) transported over long distances in the plant have to be postulated. Until now evidence for such signals originate mainly from observations of enhanced resistance against pathogens on leaves distant from the induction site.
KeywordsSystemic Induction Systemic Induce Resistance Fungal Development Streptomyces Griseus Challenge Infection
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