Alkane biosynthesis is promoted in methyl jasmonate‐treated sweet cherry (Prunus avium) fruit cuticles

Author:

Balbontín Cristián1,Gutiérrez Camilo2,Schreiber Lukas3ORCID,Zeisler‐Diehl Viktoria V.3,Marín Juan C.2,Urrutia Victoria1,Hirzel Juan1,Figueroa Carlos R.45ORCID

Affiliation:

1. Departamento de Producción Vegetal, Instituto de Investigaciones Agropecuarias Chillán Chile

2. Departamento de Ciencias Básicas Universidad del Bío‐Bío Chillán Chile

3. Department of Ecophysiology, Institute of Cellular and Molecular Botany, University of Bonn Bonn Germany

4. Laboratory of Plant Molecular Physiology Institute of Biological Sciences, Campus Talca, Universidad de Talca Talca Chile

5. Millennium Nucleus for the Development of Super Adaptable Plants (MN‐SAP) Santiago Chile

Abstract

AbstractBackgroundThe cuticle plays an important role in the survival of plants, and it is important to preserve the quality of fleshy fruits like sweet cherry. Plant hormones play a role in cuticle formation. In this sense, jasmonates have been shown to induce cuticle biosynthesis, but until today this has not been demonstrated in sweet cherry fruit. Therefore, the effect of exogenous methyl jasmonate (MeJA) application at the fruit set stage on the expression levels of cuticle synthesis‐related genes and the wax composition of the isolated cuticle was studied in developing and ripe fruits of sweet cherry (Prunus avium ‘Bing’), respectively.ResultsMeJA treatment resulted in up‐regulation of the cuticle biosynthesis‐related gene expression, such as PaWINA, PaWINB, PaKCS1, PaKCS6, PaLACS1, PaLACS2, PaWS, and PaWBC11. These genes play a vital role in the elongation and transport of fatty acids, and wax biosynthesis. Analysis of cuticular components in ripe fruit showed an increase in long‐chain linear aliphatic wax compounds, particularly C27, C28, C29, C30, and C31 alkanes.ConclusionExogenous MeJA application at the fruit set stage of sweet cherry has a significant effect on the wax composition of the ripe fruit cuticle, particularly in terms of alkane biosynthesis. The results of this study may provide insights into the regulation of cuticle biosynthesis by jasmonates and be useful for improving fruit quality and storage life. © 2023 Society of Chemical Industry.

Funder

Agencia Nacional de Investigación y Desarrollo

Fondo Nacional de Desarrollo Científico y Tecnológico

Publisher

Wiley

Subject

Nutrition and Dietetics,Agronomy and Crop Science,Food Science,Biotechnology

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