Article (Scientific journals)
Elicitors of Plant Immunity Triggered by Beneficial Bacteria
Prsic, Jelena; Ongena, Marc
2020In Frontiers in Plant Science, 11
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Abstract :
[en] The molecular basis of plant immunity triggered by microbial pathogens is being well-characterized as a complex sequential process leading to the activation of defense responses at the infection site, but which may also be systemically expressed in all organs, a phenomenon also known as systemic acquired resistance (SAR). Some plant-associated and beneficial bacteria are also able to stimulate their host to mount defenses against pathogen ingress via the phenotypically similar, induced systemic resistance phenomenon. Induced systemic resistance resembles SAR considering its mechanistic principle as it successively involves recognition at the plant cell surface, stimulation of early cellular immune-related events, systemic signaling via a fine-tuned hormonal cross-talk and activation of defense mechanisms. It thus represents an indirect but efficient mechanism by which beneficial bacteria with biocontrol potential improve the capacity of plants to restrict pathogen invasion. However, according to our current vision, induced systemic resistance is specific considering some molecular aspects underpinning these different steps. Here we overview the chemical diversity of compounds that have been identified as induced systemic resistance elicitors and thereby illustrating the diversity of plants species that are responsive as well as the range of pathogens that can be controlled via this phenomenon. We also point out the need for further investigations allowing better understanding how these elicitors are sensed by the host and the diversity and nature of the stimulated defense mechanisms. © Copyright © 2020 Pršić and Ongena.
Disciplines :
Microbiology
Author, co-author :
Prsic, Jelena  ;  Université de Liège - ULiège > Département GxABT > Microbial, food and biobased technologies
Ongena, Marc ;  Université de Liège - ULiège > Département GxABT > Microbial, food and biobased technologies
Language :
English
Title :
Elicitors of Plant Immunity Triggered by Beneficial Bacteria
Publication date :
2020
Journal title :
Frontiers in Plant Science
eISSN :
1664-462X
Publisher :
Frontiers Media S.A.
Volume :
11
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 04 February 2021

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