The two main types of systemic resistance SAR and ISR can be both globally viewed as a three-step process involving sequentially:
– the perception by plant cells of elicitors produced by the inducing agents that initiates the phenomenon,
– signal transduction that is needed to propagate the induced state systemically through the plant,
– expression of defense mechanisms sensu stricto that limit or inhibit further pathogen penetration into the host tissues.
In this review, we focus on the early molecular dialogue and provide an overview of microbial elicitors of SAR, ISR but also LAR that are perceived by plants at the plasma membrane level. We will not consider those acting intracellularly as effectors of the ETI. Some excellent review papers are available to the reader for further updated information about these effectors (Sheen et al., 2007; Katagiri et al., 2010; Zhou et al., 2010).
The two main types of systemic resistance SAR and ISR can be both globally viewed as a three-step process involving sequentially:– the perception by plant cells of elicitors produced by the inducing agents that initiates the phenomenon,– signal transduction that is needed to propagate the induced state systemically through the plant,– expression of defense mechanisms sensu stricto that limit or inhibit further pathogen penetration into the host tissues.In this review, we focus on the early molecular dialogue and provide an overview of microbial elicitors of SAR, ISR but also LAR that are perceived by plants at the plasma membrane level. We will not consider those acting intracellularly as effectors of the ETI. Some excellent review papers are available to the reader for further updated information about these effectors (Sheen et al., 2007; Katagiri et al., 2010; Zhou et al., 2010).
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