Terroir 2020 banner
IVES 9 IVES Conference Series 9 Genetic diversity of Oenococcus oeni strains isolated from Yinchuan wine region in the East of Helan Mountain, China

Genetic diversity of Oenococcus oeni strains isolated from Yinchuan wine region in the East of Helan Mountain, China

Abstract

Aim: This study aimed to isolate Oenococcus oeni in red wines from Yinchuan wine region in the East of Helan Mountain, China, and analysis their genetic diversity.

Methods and Results: Oenococcus oeni strains were isolated from Cabernet Sauvignon and Cabernet Gernischt wines of four representative wineries in 2016. Total 207 O. oeni strains were isolated and identified by species-specific PCR. Following that, 206 amplified fragment length polymorphism (AFLP) genotypes were detected, with the similarity coefficients ranging between 63% – 97%. Based on the UPGMA, two major phylogroups were deciphered at 81% similarity level. Interestingly, the strains in different phylogroups were isolated from wines of different cultivars. In addition, strains from the same winery formed a unique cluster.

Conclusions: 

Our results indicate there is an obvious genetic relationship of O. oeni with grape cultivars and their origins. Our results also support the fact that O. oeni is an important factor related to the wine terroir. 

Significance and Impact of the Study: The Chinese wine industry has steadily grown in recent years. However, limited development and application of indigenous O. oeni strains would lead to homogeneity in wine quality. The outcome of this study would lay down the theoretical foundation for the development of indigenous O. oeni strains with regional characteristics.

Download the PDF

DOI:

Publication date: March 17, 2021

Issue: Terroir 2020

Type: Video

Authors

Kan Shi1,3 ,4, Huawei Gu2, Dongliang Yu5, Shuwen Liu1,3,4*

1College of Enology, Northwest A&F University, Yangling, Shaanxi 712100, China
2College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
3Shaanxi Engineering Research Center for Viti-Viniculture, Yangling, Shaanxi 712100, China
4Heyang Experimental and Demonstrational Stations for Grape, Weinan, Shaanxi 715300, China
5Qinhuangdao Chateau Kings Global Co., Ltd, Changli, Hebei 066600, China

Contact the author

Keywords

Wine, Oenococcus oeni, genetic diversity, AFLP

Tags

IVES Conference Series | Terroir 2020

Citation

Related articles…

Assessment of wine non-Saccharomyces yeast strains as promising producers of glutathione

AIM: Glutathione (GSH) is a non-protein thiol naturally present in grape berries and produced by yeasts during fermentation. It has a strong antioxidant activity, thus can be added during winemaking to limit the oxidative phenomena of wine, preserving sensory characteristics and stability, ultimately promoting a healthier product by reducing the need for SO2 addition.

Read More

Global geo changes, including climate: viticulture result on new viticulture-viticolture in a territory both further north of the region and at high altitude

Context and purpose of the study. In relation to global geo changes, including climatic ones, the following research has been conducted: 1. In Europe’s highest vineyard (1395 m.a.s.l.) (Cargnello, 2014÷2021; Cargnello & Col. 2019÷2021)

Read More

How are canned wine drinkers perceived? An investigation involving Swiss nationals and different scenarios of outdoor leisure activities

This study examines how people who consume wine in cans are perceived in terms of their basic personality characteristics, helps understand the role of cultural background on people’s perception, and verify the role played by the consumption context on the perception. Our hypothesis is that prejudice and negative attitudes towards wine in cans might exert a negative effect on the evaluation of people who consume canned wine. To evaluate this hypothesis, the consumption of wine in cans was evoked in four different contexts of use during outdoor leisure activity (beach resort, ski resort, desert safari, and party). In order to examine the effect of culture on subject’s response we use participants from Switzerland, a country where three different cultures, associated with three different languages, cohabit.

Read More

Research summary on the use of Terroir as a wine purchasing cue

Due to the current challenging nature of the global wine market, and recent growth in number and strength of competitors from non-traditional wine producing countries, European wine producers are focussing on the potential to develop a competitive advantage through the concept of terroir.

Read More

On sample preparation methods for fermentative beverage VOCs profiling by GCxGC-TOFMS

Study the influence of sample preparation methods on the volatile organic compounds (VOCs) profiling for fermentative beverages by GCxGC-TOFMS analysis. METHODS: Five common sample preparation methods were tested on pooled red wine, white wine, cider, and beer. Studied methods were DHS, Liquid-liquid extraction, mSBSE, SPE and SPME. VOCs were analyzed by GCxGC-TOFMS followed by data analysis with ChromaTOF. RESULTS: The volatile organic compounds (VOCs) profiling results were very dependent on the sample preparation methods.

Read More