Invasion of the stigma by oomycete pathogenic hyphae or pollen tubes: striking similarities and differences.

Autor:	Riglet L; Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon1, CNRS, INRA, F-69342 Lyon, France., Hok S; INRAE, CNRS, Université Côte d'Azur, Institut Sophia Agrobiotech, 06903 Sophia Antipolis, France., Kebdani-Minet N; INRAE, CNRS, Université Côte d'Azur, Institut Sophia Agrobiotech, 06903 Sophia Antipolis, France., Le Berre J; INRAE, CNRS, Université Côte d'Azur, Institut Sophia Agrobiotech, 06903 Sophia Antipolis, France., Gourgues M; INRAE, CNRS, Université Côte d'Azur, Institut Sophia Agrobiotech, 06903 Sophia Antipolis, France., Rozier F; Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon1, CNRS, INRA, F-69342 Lyon, France., Bayle V; Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon1, CNRS, INRA, F-69342 Lyon, France., Bancel-Vallée L; Unité de Bordeaux, Bordeaux Imaging Center, 146 rue Lèo Saignat CS 61292, F-33076 Bordeaux, France., Allasia V; INRAE, CNRS, Université Côte d'Azur, Institut Sophia Agrobiotech, 06903 Sophia Antipolis, France., Keller H; INRAE, CNRS, Université Côte d'Azur, Institut Sophia Agrobiotech, 06903 Sophia Antipolis, France., Da Rocha M; INRAE, CNRS, Université Côte d'Azur, Institut Sophia Agrobiotech, 06903 Sophia Antipolis, France., Attard A; INRAE, CNRS, Université Côte d'Azur, Institut Sophia Agrobiotech, 06903 Sophia Antipolis, France., Fobis-Loisy I; Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon1, CNRS, INRA, F-69342 Lyon, France.
Jazyk:	angličtina
Zdroj:	Journal of experimental botany [J Exp Bot] 2024 Oct 30; Vol. 75 (20), pp. 6258-6274.
DOI:	10.1093/jxb/erae308
Abstrakt:	Both the pollen tube and hyphae of filamentous pathogens penetrate the outer layer of the host and then grow within host tissues. Early epidermal responses are decisive for the outcome of these two-cell interaction processes. We identified a single cell type, the papilla in the stigma of Arabidospis, as a tool to conduct a comprehensive comparative analysis on how an epidermal cell responds to the invasion of an unwanted pathogen or a welcome pollen tube. We showed that Phytophtora parasitica, a root oomycete, effectively breaches the stigmatic cell wall and develops as a biotroph within the papilla cytoplasm. These invasive features resemble the behaviour exhibited by the pathogen within its natural host cell, but diverge from the manner in which the pollen tube progresses, being engulfed within the papilla cell wall. Quantitative analysis revealed that both invaders trigger reorganization of the stigmatic endomembrane system and the actin cytoskeleton. While some remodelling processes are shared between the two interactions, others appear more specific towards the respective invader. These findings underscore the remarkable ability of an epidermal cell to differentiate between two types of invaders, thereby enabling it to trigger the most suitable response during the onset of invasion. (© The Author(s) 2024. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu