terclim by ICS banner
IVES 9 IVES Conference Series 9 Altered lignans accumulation in a somatic variant of Tempranillo with increased extractability of polyphenols during winemaking

Altered lignans accumulation in a somatic variant of Tempranillo with increased extractability of polyphenols during winemaking

Abstract

Vegetative propagation of grapevines can generate spontaneous somatic variations, providing a valuable source for cultivar improvement. In this context, natural variation in the composition of phenolic compounds in grapevine berries and seeds stands as a pivotal factor in crafting wines with diverse oenological profiles from the same cultivar. To deepen on the understanding of the physiological and genetic mechanisms driving somatic variation in grape phenolics, here we characterized a somatic variant from Tempranillo Tinto, the clone VN21, that exhibits an intense reduced berry skin cuticle and increased extractability of phenolic compounds during wine fermentation. Furthermore, VN21 seeds exhibit anomalous development characterized by diminished lignification, substantial anthocyanin accumulation, and an inherent inability to germinate.

Transcriptomic analysis identified alterations in the phenylpropanoid biosynthesis pathway, outstanding the down-regulation of a secoisolariciresinol dehydrogenase and the up-regulation of a pinorenisol-lariciresinol reductase genes in the berry skin of VN21 compared to the reference Tempranillo Tinto clone RJ43 at veraison stage. These genes encode enzymes in the lignans branch of the phenylpropanoids pathway that are compounds that can potentially reduce the risk of certain cancers and cardiovascular diseases. Ultra-performance liquid chromatography (UPHLC) analysis in both berry skin and seed confirmed a distinct phenylpropanoid accumulation pattern between VN21 and RJ43, with an overall reduction in the accumulation of lignan compounds in VN21.

The results obtained not only contribute to understand grapevine berry development and phenolic composition but also present opportunities for targeted breeding strategies aimed at enhancing desirable traits for wine production.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Yolanda Ferradás1,2*, Carolina Royo1, Silvia Yuste1, Pablo Carbonell-Bejerano1, Nuria Mauri1,3, Javier Ibáñez1, María José Motilva1, José Miguel Martínez-Zapater1

1 Instituto de Ciencias de la Vid y del Vino, Finca La Grajera, Ctra. De Burgos Km. 6, 26007 Logroño, Spain
2 Current address: Facultade de Bioloxía, Universidade de Santiago de Compostela, 15872 Santiago de Compostela, Spain
3 Current address: Centre for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB), Cerdanyola del Vallès, Barcelona, Spain

Contact the author*

Keywords

somatic variation, lignans, berry color, UPHLC, RNA-seq

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Implementation of a deep learning-based approach for detecting and localising automatically grapevine leaves with downy mildew symptoms

Grapevine downy mildew is a disease of foliage caused by Oomycete Plasmopara viticola an endoparasite that develops inside grapevine organs and can infect virtually every green organ. Downy mildew is one of the most destructive diseases in wine-growing regions, drastically reducing yield and fruit quality. Traditional manual disease detection relies on farm experts. Human field scouting has been widely used for monitoring the disease progress, however, is costly, laborious, subjective, and often imprecise.

Read More

Ozone treatment: a solution to improve sanitary and physiological quality of vine plant

The vineyard world is faced to a lot of fungal diseases. Grapevine Trunk Diseases (GTD) are some of the major. After exhibiting chronical foliar symptoms, grapevines can die by apoplexy within only few days. A range species of fungi was described to be associated with the apparition of early symptoms of GTD. It is well known that ozone dissolved into water is a powerful disinfectant with no remanence. The main goal of this study was to test the efficiency of this process on different fungal species associated with GTD in vitro and in planta conditions.

Read More

The influence of pre-heatwave leaf removal on leaf physiology and berry development

Due to climate change, the occurrence of heatwaves and drought events is increasing, with significant impact on viticulture. Common ways to adapt viticulture to a changing climate include site selection, genotype selection, irrigation management and canopy management. The latter mentioned being for instance source-sink manipulations, such as leaf removal, with the aim to delay ripening.

Read More

Recent advancements in understanding the terroir effect on aromas in grapes and wines

Terroir is about the link between wine and its origin. It has long been understood by sensory evaluation that the taste of wine from a given variety can be related to its origins. Specific organoleptic characteristics of wine are influenced by environmental factors such as soil and climate. By deconstructing the effect of measurable soil and climate parameters on grape and wine aroma compounds,

Read More

Red wine extract and resveratrol from grapevines could counteract AMD by inhibiting angiogenesis promoted by VEGF pathway in human retinal cells

Age-related macular degeneration (AMD) that is the main cause of visual impairment and blindness in Europe which is characterized by damages in the central part of the retina, the macula. This degenerative disease of the retina is mainly due to the molecular mechanism involving the production and secretion of vascular endothelial growth factor (VEF). Despite therapeutic advances thanks

Read More