Border Control: Manipulation of the Host–Pathogen Interface by Perihaustorial Oomycete Effectors
2024
Freddie J. King | Enoch Lok Him Yuen | Tolga O. Bozkurt
Filamentous plant pathogens, including fungi and oomycetes, cause some of the most devastating plant diseases. These organisms serve as ideal models for understanding the intricate molecular interplay between plants and the invading pathogens. Filamentous pathogens secrete effector proteins via haustoria, specialized structures for infection and nutrient uptake, to suppress the plant immune response and to reprogram plant metabolism. Recent advances in cell biology have provided crucial insights into the biogenesis of the extrahaustorial membrane and the redirection of host endomembrane trafficking toward this interface. Functional studies have shown that an increasing number of oomycete effectors accumulate at the perihaustorial interface to subvert plant focal immune responses, with a particular convergence on targets involved in host endomembrane trafficking. In this review, we summarize the diverse mechanisms of perihaustorial effectors from oomycetes and pinpoint pressing questions regarding their role in manipulating host defense and metabolism at the haustorial interface. [Graphic: see text] Copyright © 2024 The Author(s). This is an open access article distributed under the CC BY 4.0 International license.
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