terclim by ICS banner
IVES 9 IVES Conference Series 9 PROBING GRAPEVINE-BOTRYTIS CINEREA INTERACTION THROUGH MASS SPECTROMETRY IMAGING

PROBING GRAPEVINE-BOTRYTIS CINEREA INTERACTION THROUGH MASS SPECTROMETRY IMAGING

Abstract

Plants in their natural environment are in continuous interaction with large numbers of potentially pathogenic and beneficial microorganisms. Depending on the microbe, plants have evolved a variety of resistance mechanisms that can be constitutively expressed or induced. Phytoalexins, which are biocidal compounds of low to medium molecular weight synthesized by and accumulated in plants as a response to stress, take part in this intricate defense system.1,2

One of the limitations of our knowledge of phytoalexins is the difficulty of analyzing their spatial responsiveness occurring during plant- pathogen interactions under natural conditions.

Mass spectrometry imaging is an innovative analytical technique for the spatial mapping of molecules within a sample. It has the ability to provide valuable insights into the molecular processes underlying the interaction between a plant and a pathogen. Despite its advantages, to date, the studies of the application of MALDI-MSI to plants is not extensive, even more the ones investigating grapevine compounds.3–5

In a first part, the presentation will focus on the principle and characteristic data provided by this methodology involving a localized ion source and a high-resolution mass spectrometer. The following part will be dedicated to our work on the application of this methodology to investigate phytoalexin accumulation and distribution in leaf tissues of Vitis vinifera cv Chardonnay, infected with Botrytis cinerea, the causal agent for gray mold. We specifically investigate the accumulation and spatial distribution of resveratrol and its derivative oligomers through a time course infection using matrix-assisted laser desorption ionization – mass spectrometry imaging (MALDI-MSI). Our results show that production of stilbene phytoalexins is rapidely activated by the presence of the pathogen, with a high molecular diversity as evidenced by the detection of various oligomeric forms. Moreover, the specific behavior of these compounds towards the propagation of the infection by the pathogen is clearly highlighted at the micron scale.

 

1. Jeandet, P.; Delaunois, B.; Conreux, A.; Donnez, D.; Nuzzo, V.; Cordelier, S.; Clément, C.; Courot, E. Biosynthesis, Metabolism, Molecular Engineering, and Biological Functions of Stilbene Phytoalexins in Plants. BioFactors 2010, 36 (5), 331–341.
2. Jeandet, P.; Uddin, M. S.; Clément, C.; Aziz, A.; Jacquard, C.; Khan, H.; Shah, M. A.; Barka, E. A.; Koffas, M.; Nabavi, S. M.; Sobarzo-Sánchez, E.; Renault, J.-H. Production of High Molecular-Ordered Stilbene Oligomers for the Study of Their Biological Activity: Total Synthesis, Bio-Catalyzed Synthesis and Production by Plant Systems. Nat. Prod. Rep. 2023.
3. Becker, L.; Carré, V.; Poutaraud, A.; Merdinoglu, D.; Chaimbault, P. MALDI Mass Spectrometry Imaging for the Simultaneous Location of Resveratrol, Pterostilbene and Viniferins on Grapevine Leaves. Molecules 2014, 19 (7), 10587–10600.
4. Maia, M.; McCann, A.; Malherbe, C.; Far, J.; Cunha, J.; Eiras-Dias, J.; Cordeiro, C.; Eppe, G.; Quinton, L.; Figueiredo, A.; De Pauw, E.; Sousa Silva, M. Grapevine Leaf MALDI-MS Imaging Reveals the Localisation of a Putatively Identified Sucrose Metabolite Associated to Plasmopara Viticola Development. Frontiers in Plant Science 2022, 13.
5. Maia, M.; Carré, V.; Aziz, A.; Jeandet, P. Molecular Localization of Phytoalexins at the Micron Scale: Toward a Better Understanding of Plant-Phytoalexin-Pathogen Dynamics. J. Agric. Food Chem. 2022.

DOI:

Publication date: February 9, 2024

Issue: OENO Macrowine 2023

Type: Article

Authors

Vincent Carré1, Maia Marisa1, Aziz Aziz2, Jeandet Philippe2

1. LCP-A2MC, Université de Lorraine, Metz, France
2. RIBP, USC INRAE 1488, Université de Reims Champagne-Ardenne, Reims, France

Contact the author*

Keywords

Mass Spectrometry, Imaging Metabolomics, Plant-Pathogen Interaction, Stilbene phytoalexins

Tags

IVES Conference Series | oeno macrowine 2023 | oeno-macrowine

Citation

Related articles…

FLAVANOL COMPOSITION OF VARIETAL AND BLEND WINES MADE BEFORE AND AFTER FERMENTATION FROM SYRAH, MARSELAN AND TANNAT

Background: The Flavan-3-ol extraction from grape skin and seed during red-winemaking and their retention into wines depend on many factors, some of which are modified in the winemaking of blend wines. Recent research shows that Marselan, have grapes with high proportion of skins with high concentrations of flavanols, but produces red-wines with low proportion of skin derived flavanols, differently to the observed in Syrah or Tannat. But the factors explaining these differences are not yet understood.

Read More

Searching for the sweet spot: a focus on wine dealcoholization

It is well known that the vinification of grapes at full maturation can produce rich, full-bodied wines,
with intense and complex flavour profiles. However, the juice obtained from such grapes may have very
high sugar concentration, resulting in wines with an excessive concentration of ethanol. In addition, the decoupling between technological maturity and phenolic/aromatic one due to global warming, exacerbates this problem in some wine-growing regions. In parallel with the increase of the mean alcohol content of wines on the market, also the demand for reduced alcohol beverages has increased in recent years, mainly as a result of health and social concerns about the risks related to the consumption of alcohol.

Read More

PAIRING WINE AND STOPPER: AN OLD ISSUE WITH NEW ACHIEVEMENTS

The sensory characteristics of wine are a topic studied by several researchers over time, but it continues to be a current and challenging subject. These characteristics are fundamental for the consumer acceptability, which has increasingly aroused their interest to modulate them in line with current market trends and innovation demands. The wine physical-chemical and sensory properties depend on a wide set of factors: they begin to be designed in the vineyard and are later constructed during the various stages of winemaking. Afterwards, the wine is placed in bottles and stored or commercialized.

Read More

VALORIZATION OF GRAPE WINE POMACE USING PULSED ELECTRIC FIELDS (PEF) AND SUPERCRITICAL CO₂ (SC CO₂) EXTRACTION

Wine grape pomace quantitatively and qualitatively represents the most important fraction of wine waste. Namely, this by-product makes ~ 20% of the total mass of vinified grapes, and it is characterized with high concentrations of polyphenolic antioxidants, as well as grape seed oil. Hence, valorization of wine pomace, as an alternative to traditionally employed disposal, has drown considerable interest in recent years. Earlier studies were mostly focused on the extraction of phenolics, while mechanisms enhancing the extraction of lipid fraction from grape pomace, as well as their impact on the grape seed oil quality are far less investigated.

Read More

OENOLOGICAL TANNINS FOR PREVENTING THE LIGHT-STRUCK TASTE IN WHITE AND ROSÉ WINES

The light exposure of wine can be detrimental as a relevant loss of aromas takes place [1] and light-induced reactions can occur. The latter involves riboflavin (RF), a photosensitive compound, that is fully reduced by acquiring two electrons. When the electron-donor is methionine, the light-struck taste (LST) can appear leading to cooked cabbage, onion and garlic odours-like [2]. The use of oenological tannins can limit the appearance of LST in both model wine [3] and white wine [4]. This research aimed to evaluate the impact of certain oenological tannins, selected in a previous study as the most effective against LST [5], in both white and rosé wines.

Read More