terclim by ICS banner
IVES 9 IVES Conference Series 9 Regulation of terpene production in methyl jasmonate treated cell-cultures

Regulation of terpene production in methyl jasmonate treated cell-cultures

Abstract

Terpenes are responsible for flavors and aromas of grapes, however, they also protect from radiation, participate in biotic stress and antioxidant mechanisms. The phytohormone methyl jasmonate (MeJA) mediates many of these stress responses and has been associated with increased terpene content in berries. Here, we generated transcriptomic data of Vitis vinifera cv. ‘Gamay’ cells treated with MeJA (100 μM) and cyclodextrins (50 μM) to understand these responses. Ontology analysis revealed that up-regulated genes (URGs) were enriched in jasmonic acid biosynthesis and signaling terms, as expected. Inspection of transcription factors (TFs) among URGs allowed us to study uncharacterized TFs.  MapMan enrichment analysis on their TOP420 co-expressed genes (CEGs) allowed us to delimit some TFs highly enriched in jasmonate-related terms. This was the case of VviMYC2, the only grape member of the bHLH IIIe subgroup, and the best candidate for studying the regulation of jasmonate signaling. We confirmed the binding potential of MYC2 by DAP-seq, and combining it to the list of MeJA-URGs and MYC2-CEGs, we generated a list of high-confidence targets that included jasmonate-related genes and TFs such as MYB24, previously found to interact with MYC2 and required for the activation of terpenoid genes. In concordance, our MeJA data showed 13 significantly induced TPS genes, 9 of which are bound by MYB24, MYC2 or both. A few terpenoid compounds associated with the induced TPSs were significantly accumulated by MeJA. Our data suggests MYC2 regulates the jasmonate pathway and mediates terpene production cooperating with MYB24 in response to MeJA.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Jone Echeverria1, Chen Zhang1, Chiara Foresti2 Antonio Santiago1, Luis Orduña1, Paolo Sonego3, Massimo Pindo3, Sara Zenoni2, Marco Moretto3, José Tomás Matus1*

1 Institute for Integrative Systems Biology (I2SysBio), Universitat de València-CSIC, Paterna, 46980, Valencia, Spain
2 Department of Biotechnology, University of Verona, 37134, Verona, Italy
3 Center Agriculture Food Environment (C3A), University of Trento/Fondazione Edmund Mach, via E. Mach 1, 38098, San Michele all’Adige (TN), Italy

Contact the author*

Keywords

gene expression, plant cell suspensions, terpenes, methyl jasmonate, transcription factors

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Effect of nitrogen content on fermentation kinetics and aroma profile of assyrtiko wine

Today, there is need to design, produce and label terroir wines, with unique organoleptic properties and more “attractive to consumers”. For this purpose, two Saccharomyces cerevisiae yeast strains (Sa and Sb) isolated during spontaneous fermentations were used for white wine production from the Assyrtiko grape of Santorini. A third commercial strain was used as control.

Read More

Lean management to improve sustainability in wine sector: an exploratory study in the Prosecco DOC appellation

The contemporary wine sector confronts a formidable array of challenges, including burgeoning production costs and the constricted availability of natural resources. Heightened consumer awareness regarding sustainability issues further compounds these pressures, compelling companies to adopt more judicious resource utilization strategies. In response to these imperatives, there is a growing recognition of the need to overhaul production methodologies within the wine industry with a view to minimizing inputs and eliminating waste.

Read More

Application of remote sensing by unmanned aerial vehicles to map variability in Ontario Riesling and Cabernet Franc vineyards

The objective of this investigation was to verify usefulness of proximal sensing technology and unmanned aerial vehicles (UAVs) for mapping variables e.g., vine size (potential vigor), soil and vine water status, yield, fruit composition, and virus incidence in vineyards.

Read More

Complementarity of measurements of electric resistivity of soils and ΔC13 of must in studies and valorization of wine terroirs

The correlations between vine water deficit cumulated over the ripening period of grapes, assessed by ΔC13 in must sugar, and the main analytic variables of grapes are significant. As a result ΔC13 is a useful tool in zoning homogeneous areas according to their technological qualities when harvesting.

Read More

Natural glycolipids for the control of spoilage organisms in red wine

A natural glycolipid mixture obtained from the edible mushroom dacryopinax spathularia (“glycolipids”) is known to be an effective and approved antimicrobial treatment in non-alcoholic beverages at concentrations ranging from 5 – 100 mg/l. It has found a place alongside DMDC for the provision of microbial stability in soft drinks. These properties make the natural and sustainably produced glycolipids a promising candidate for the supplementation or replacement of SO2 in different winemaking processes.

Read More