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Annual Review of Phytopathology

Volume 61, 2023

Ill Communication: Host Metabolites as Virulence-Regulating Signals for Plant-Pathogenic Bacteria

Abstract

Plant bacterial pathogens rely on host-derived signals to coordinate the deployment of virulence factors required for infection. In this review, I describe how diverse plant-pathogenic bacteria detect and respond to plant-derived metabolic signals for the purpose of virulence gene regulation. I highlight examples of how pathogens perceive host metabolites through membrane-localized receptors as well as intracellular response mechanisms. Furthermore, I describe how individual strains may coordinate their virulence using multiple distinct host metabolic signals, and how plant signals may positively or negatively regulate virulence responses. I also describe how plant defenses may interfere with the perception of host metabolites as a means to dampen pathogen virulence. The emerging picture is that recognition of host metabolic signals for the purpose of virulence gene regulation represents an important primary layer of interaction between pathogenic bacteria and host plants that shapes infection outcomes.

Keyword(s): effector, immunity, inter-kingdom signaling, metabolic signaling, type III secretion, virulence
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2023-09-05
2024-05-02
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/content/journals/10.1146/annurev-phyto-021621-114026
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Ill Communication: Host Metabolites as Virulence-Regulating Signals for Plant-Pathogenic Bacteria
Annual Review of Phytopathology 61, 49 (2023); https://doi.org/10.1146/annurev-phyto-021621-114026
/content/journals/10.1146/annurev-phyto-021621-114026
/content/journals/10.1146/annurev-phyto-021621-114026
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