terclim by ICS banner
IVES 9 IVES Conference Series 9 Cell wall remodeling mediated by specific PME genes plays a role in grapevine response to Botrytis cinerea

Cell wall remodeling mediated by specific PME genes plays a role in grapevine response to Botrytis cinerea

Abstract

Botrytis cinerea (Bc) is one of the main pathogens affecting the cultivated grapevine. A key role in grapevine tissue colonization is played by cell wall (CW) remodeling driven by CW Modifying Enzymes (CWMEs), expressed both by the host and the pathogen. Their action can impact CW integrity and trigger specific immune signaling, thus influencing Bc infection outcome. To further characterize the role of the CW in the grapevine response to Bc, two contrasting genotypes in their resistance to the fungus were artificially inoculated at full bloom. RNA-seq analysis and biochemical characterization of the CW and its modification in samples collected at 24 hours post-inoculation highlighted significant differences between genotypes. A gene set enrichment analysis indicated several over-represented categories upon infection, with a general down-regulation of those genes related to CW organization and pectin modification, mostly in the resistant genotype. Within the down-regulated CWMEs, Pectin Methyl-Esterase (PME) genes were found highly represented. Unlike, VviPME10 was significantly induced upon infection and was further characterized since its putative ortholog in Arabidopsis was associated with resistance to Bc. VviPME10promoter hosts several predicted binding sites for VviWRKY3, a defense-associated transcription factor, as highlighted by DAP-seq analysis. This evidence is under confirmation by luciferase assays. In addition, the artificial inoculation with Bc of leaves from six VviPME10 knock-out (KO) edited lines showed significantly larger lesion areas when compared to control plants at 5 dpi. Together, these results suggest that pectin modification, mediated by VviPME10, plays an important role in the grapevine response to Bc.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Article

Authors

Jorge Lagrèze1,2, Antonio Santiago Pajuelo3, Lorenza Dalla Costa2, Daniele Coculo4, Gabriele Magon5, Luis Orduña3, Gaston Pizzio3, Chen Zhang3, Mickael Malnoy2, Vincenzo Lionetti4, Alessandro Vannozzi5, José Tomás Matus3, Claudio Moser2, Giulia Malacarne2*

1 Center Agriculture Food Environment (C3A), University of Trento/Fondazione Edmund Mach, via E. Mach 1, 38098, San Michele all’Adige (TN), Italy
2 Research and Innovation Center, E. Mach Foundation, Via E. Mach 1, 38098, San Michele all’Adige (Trento), Italy
3 Institute for Integrative Systems Biology (I2SysBio), Universitat de València-CSIC, Paterna, 46980, Valencia, Spain
4 Department of Biology and Biotechnology “Charles Darwin”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
5 Department of Agronomy, Food, Natural resources, Animals and Environment (DAFNAE), University of Padova, Viale dell’Università 16 – 35020 Legnaro (PD), Italy

Contact the author*

Keywords

Botrytis cinerea, transcriptomics, DAP-seq analysis, Cell wall, grapevine pectin methyl-esterase

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Influence of soil type and changes in soil solution chemistry on vine growth parameters and grape and wine quality in a central coast California vineyard

The objective of this study was to determine the influence of four soils with contrasting chemical and physical properties on vine growth parameters and wine chemistry in a Paso Robles, California Cabernet Sauvignon vineyard

Read More

Hanseniaspora in wine-making: their genetic modification and potential role in acid modulation

Hanseniaspora spp. are one of the most common yeast isolates in vineyards and wineries and play an important role in wine-making.

Read More

Enzyme treatments during pre-fermentative maceration of white winegrapes: effect on volatile organic compounds and chromatic traits

Volatile organic compounds (VOCs) are very important for the characterisation and quality of the final white wine. An oenological practice to increase the extraction of aroma compounds is the cold pre-fermentative maceration [1,2], although it may also release phenolic compounds that confer darker chromatic traits to white wines, not appreciated by consumers. This practice could be improved by the use of enzymes in order to facilitate the release of the odorous molecules. In this study, the effect of different enzyme treatments during skin contact on the chromatic characteristics and volatile composition of white musts from four winegrape varieties was evaluated.

Read More

The capacity of spectrofluorometric fingerprints to discern changes of wine composition: applications in classifying wine additives and tracking red wine maturation and ageing

Fluorescence spectroscopy combined with chemometrics has shown advantages in wine analysis due to being rapid, sensitive, and selective to fluorescent molecules. Especially due to the abundant phenolic compounds [1], the molecular fingerprints afforded by fluorescence spectroscopy can potentially be used to discern and track the change of wine composition, with two innovative investigations having been implemented.

Read More

Evaluating South African Chenin blanc wine styles using an LC-MS screening method

Sorting Chenin blanc is one of the most important white wine cultivars in South Africa. It has received a lot of attention and accolades in the past years and more research than ever is dedicated to this versatile cultivar. According to the Chenin blanc association of South Africa, there are three recognized dry wine styles, Fresh and Fruity (FF), Rich and Ripe Unwooded
(RRU), and Rich and Ripe Wooded (RRW). They are traditionally established with the aid of expert sensory evaluation, but the cost and the (subjective) human factor are aspects to be taken into account. A more objective and possibly robust way of assessing and attributing these styles can be the use of chemical analysis.

Read More