Formulated hydroxy fatty acids from fruit pomaces reduce apple scab development caused by Venturia inaequalis through a dual mode of action.

Autor:	Gaucher M; Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, Angers, France., Juillard A; Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, Angers, France., Nguyen BH; Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, Angers, France., Viller N; INRAE, Biopolymers Interactions Assemblies, Nantes, France SDP Rovensa Company, Laon, France., Ernenwein C; SDP Rovensa Company, Laon, France., Marion D; INRAE, Biopolymers Interactions Assemblies, Nantes, France SDP Rovensa Company, Laon, France., Brisset MN; Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, Angers, France., Bakan B; INRAE, Biopolymers Interactions Assemblies, Nantes, France SDP Rovensa Company, Laon, France.
Jazyk:	angličtina
Zdroj:	Frontiers in plant science [Front Plant Sci] 2024 Jan 08; Vol. 14, pp. 1322638. Date of Electronic Publication: 2024 Jan 08 (Print Publication: 2023).
DOI:	10.3389/fpls.2023.1322638
Abstrakt:	The outermost hydrophobic layer of plants, i.e. the cuticle, is mainly composed of cutin, a polyester of hydroxy fatty acids with reported eliciting and/or antimicrobial activities for some of them. By-products of the fruit processing industry (fruit pomaces), often strongly enriched in cuticular material, are therefore a potential source of bioactive compounds for crop protection against pathogen attack. We investigated the utilization of tomato and apple pomaces in the development of a cutin-based biocontrol solution against apple scab, a major apple disease caused by Venturia inaequalis . Several cutin monomer extracts obtained through different strategies of depolymerization and purification were first compared for their ability to induce a targeted set of defense genes in apple seedlings after foliar application. After a step of formulation, some extracts were chosen for further investigation in planta and in vitro . Our results show that formulated cutin monomers could trigger a significant transcriptome reprogramming in apple plants and exhibit an antifungal effect on V. inaequalis . Cutin monomers-treated apple seedlings were significantly protected against infection by the apple scab agent. Altogether, our findings suggest that water-dispersed cutin monomers extracted from pomaces are potential new bio-based solutions for the control of apple scab. Competing Interests: Author CE was employed by SDP Rovensa Company. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2024 Gaucher, Juillard, Nguyen, Viller, Ernenwein, Marion, Brisset and Bakan.)
Databáze:	MEDLINE
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