terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 High-throughput sequencing analysis based on nematode indices revealed healthier soils of organic vineyards 

High-throughput sequencing analysis based on nematode indices revealed healthier soils of organic vineyards 

Abstract

Proper soil health assessments are crucial for sustainable cropland. Among the widely employed approaches, evaluating nematode community structure is particularly suitable. Traditionally, the taxonomic characterization of soil nematodes has relied on time-consuming morphology-based methods requiring experienced experts. However, molecular tools like high-throughput sequencing have emerged as efficient alternatives. In this study, we performed a metataxonomic analysis of soil samples collected from 57 vineyards in the DOCa Rioja region of Northern Spain, focusing on the impact of organic viticulture and cover cropping compared to integrated pest management (IPM) and tilling practices. Our goal was to investigate the potential benefits of organic viticulture and cover cropping on the quality and biodiversity of vineyard soils. The soil samples were collected to a depth of 20 cm, and the vineyards were categorized based on their pest and soil management strategies. Employing specific primers and following the Illumina amplicon protocol, we conducted sequencing on the Illumina MiSeq platform (2×300 bp). The resulting data underwent bioinformatics analysis utilizing Qiime2 and the SILVA v138.1 database to explore biodiversity measures and differentially abundant taxa. Over 80 taxonomic groups (genus/family) of nematodes were identified and utilized for calculating nematode-based indices using the NINJA platform. Findings showed no significant differences between cover cropping and tilling practices but for pest management. Thus, organic viticulture increased the α-biodiversity of soil nematodes, and nematode-based indices revealed raised environmental disturbance, higher occurrence of plant-parasitic nematodes of adverse implications for crop health, and declined soil food web structure in IPM vineyards. In conclusion, this approach appears well suited to assess vineyard soil health.

DOI:

Publication date: October 3, 2023

Issue: ICGWS 2023

Type: Article

Authors

Rubén Blanco-Pérez1*, María de Toro2, Sara Sánchez-Moreno3, Sergio Álvarez-Ortega4, Alícia Pou1, Raquel Campos-Herrera1

1 Instituto de Ciencias de la Vid y del Vino (CSIC-Univ. de La Rioja-Gobierno de La Rioja), Logroño, Spain.
Centro de Investigación Biomédica de La Rioja (CIBIR), Logroño, Spain.
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Madrid, Spain.
Universidad Rey Juan Carlos, Madrid, Spain.

Contact the author*

Keywords

bioindicators, cover cropping, DNA-metabarcoding, pest management, tillage

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Grape pomace, an active ingredient at the intestinal level: Updated evidence

Grape pomace (GP) is a winemaking by-product particularly rich in (poly)phenols and dietary fiber, which are the main active compounds responsible for its health-promoting effects. GP-derived products have been proposed to manage cardiovascular risk factors, including endothelial dysfunction, inflammation, hypertension, hyperglycemia, and obesity. Studies on the potential impact of GP on gut health are much more recent. However, it is suggested that, to some extent, this activity of GP as a cardiometabolic health-promoting ingredient would begin in the gastrointestinal tract as GP components (i.e., (poly)phenols and fiber) undergo extensive catabolism, mainly by the action of the intestinal microbiota, that gives rise to low-molecular-weight bioactive compounds that can be absorbed and utilized by the body.

New food trend ahead? Highlighting the nutritional benefits of grapevine leaves

The wine industry produces an enormous amount of waste every year. A wider inclusion of disregarded by-products in the human diet or its use as a source of bioactive compounds is a good strategy for reducing waste. It will not only introduce an added value to a waste product but also come upon the European Union and United Nations’ demands towards more sustainable agricultural approaches and circular economy.

Typicality of Rioja wines: identification of sensory profiles for the three subregions of DOCa Rioja

Within the DOCa Rioja three main production areas are differentiated: Rioja Alta (RA), Rioja Alavesa (RAv) and Rioja Oriental (RO). They are three diverse territories with particular characteristics that are claimed to give rise to differentiated profiles. The present work aims at evaluating the sensory diversity of young commercial red wines in these three subregions. Therefore 30 young red wines (mainly Tempranillo and vintage 2021), ten from each subregion, were sensory described following a non-verbal free sorting task and a verbal free comment task by 32 well-established Rioja winemakers.

Investigating the Ancient Egyptian wines: The wine jars database

In Ancient Egypt, wine was a luxury product consumed mainly by the upper classes and the royal family and offered to gods in daily religious rituals in the temples.
Since the Predynastic (4000-3100 BC) period, wine jars were placed in tombs as funerary offerings. From the Old Kingdom (2680-2160 BC) to the Greco-Roman (332 BC-395 AD) period, viticulture and winemaking scenes were depicted on the private tombs’ walls. During the New Kingdom (1539-1075 BC), wine jars were inscribed to indicate: vintage year, product, quality, provenance, property and winemaker’s name and title.

Association between dietary pattern and wine consumption and Alzheimer’s disease in a cohort from La Rioja (Spain)

Addressing modifiable risk factors is the most promising strategy to prevent/delay Alzheimer Disease (AD)[1]. The aim of the study was to establish the connections between dietetic habits, wine consumption and AD. Thus, 98 volunteers were recruited: 50 diagnosed as AD and 48 healthy/controls. The Food Frequency Questionnaire (FFQ) was used for dietary patterns assessment and, based on these data, the Mind Diet Score was calculated. (Poly)phenol metabolites (especially derived from wine consumption) were analyzed by UPLC-QqQ-MS/MS in 24-h urine samples to confirm dietary (poly)phenol consumption.