terclim by ICS banner
IVES 9 IVES Conference Series 9 The key role of vineyard parcel in modifying flavor compounds of Cabernet Sauvignon grapes

The key role of vineyard parcel in modifying flavor compounds of Cabernet Sauvignon grapes

Abstract

To produce premium wines in a specific region is the goal of local oenologists. This study aimed to investigate the influence of soil properties on the flavoromics of Cabernet Sauvignon grapes to provide a better insight into single-vineyard wines. Six commercial Cabernet Sauvignon vineyards were selected in the Manas region to collect berries at three harvest ripeness in three seasons (2019–2021). The six vineyards had little difference in mesoclimate conditions while varying greatly in soil composition. Results showed that the harvest date of two adjacent vineyards (within 200 m) could vary up to two weeks. High vineyard pH (> 8.5) could accelerate grape ripening rate, increase grape anthocyanin and flavonol concentration while decreasing C6/C9-related aromas. Vineyards with moderate nutrition were beneficial for accumulating norisoprenoids in grapes. Differently expressed genes involved in the pathways of secondary metabolites were selected through transcriptome analysis, revealing the regulation of grape flavor compounds influenced by vineyard soil heterogeneity. This work provides molecular and chemical mechanisms underlying single-vineyard wines and a theoretical basis for targeted wine production.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Article

Authors

Haocheng Lu1,2, Mengbo Tian1,2, Ning Shi1,2, Jun Wang1,2*

1 Center for Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
2 Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China

Contact the author*

Keywords

Single vineyard wine, soil, phenolics, aromas, transcriptome

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Non-targeted analysis of C13-norisoprenoid aroma precursors in Riesling

Significant wine aroma can be formed from non-volatile precursors that are linked to sugars, including but not limited to grape-derived monoterpene and C13-norisoprenoid glycosides.

Read More

Viticultural climate effect on the sensorial perception of wines. Methodological elements for a modelling at a world level

The objective of this study was to develop a methodology capable of modeling the effect of viticultural climate on wine sensory characteristics.

Read More

Application of ultrasonic and refractometric measurements in enological samples and related model solutions

AIM: The refractive index is a basic optical property of materials and a key tool for the determination of major components in musts, such as sugars

Read More

Improving stilbenes in vitis Labrusca L. Grapes through methyl jasmonate applications

Grapes (Vitis sp.) are considered a major source of phenolic compounds such as flavonols, anthocyanins and stilbenes. Studies related to the beneficial effects of these compounds on health have encouraged research aimed at increasing their concentration in fruits. On this behalf, several plant growth regulators such as jasmonic acid and its volatile ester, methyl-jasmonate (MeJa), have demonstrated promising results in many fruits. However, Brazilian subtropical climate might interfere on treatment response. The present study aims to evaluate the application of MeJa in the pre-harvest period in Concord and Isabel Precoce grapes (Vitis labrusca L.).

Read More

Retrospective analysis of our knowledge regarding the genetics of relevant traits for rootstock breeding 

Rootstocks were the first sustainable and environmentally friendly strategy to cope with a major threat for Vitis vinifera cultivation. In addition to providing Phylloxera resistance, they play an important role in protecting against other soil-borne pests, such as nematodes, and in adapting V. vinifera to limiting abiotic conditions. Today viticulture has to adapt to ongoing climate change whilst simultaneously reducing its environmental impact. In this context, rootstocks are a central element in the development of agro-ecological practices that increase adaptive potential with low external inputs. Despite the apparent diversity of the Vitis genus, only few rootstock varieties are used worldwide and most of them have a very narrow genetic background. This means that there is considerable scope to breed new, improved rootstocks to adapt viticulture for the future.

Read More