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https://www.readbyqxmd.com/read/27890088/fungal-endophytic-communities-associated-to-the-phyllosphere-of-grapevine-cultivars-under-different-types-of-management
#1
Carla Marisa Reis Varanda, Mônica Oliveira, Patrick Materatski, Miguel Landum, Maria Ivone Esteves Clara, Maria do Rosário Félix
Fungal endophytes present in different asymptomatic grapevine plants (Vitis vinifera L.) located in different vineyards within Alentejo, a highly important viticulture region in Portugal, were identified in this study. Sampled grapevine plants included the three most representative cultivars in the region, Syrah, Cabernet Sauvignon, and Aragonez, growing under two different modes of management, conventional and biological. Sixteen fungal taxa were identified through sequencing of the internal transcribed spacer region...
December 2016: Fungal Biology
https://www.readbyqxmd.com/read/27825476/development-of-microsatellite-markers-for-lachancea-thermotolerans-typing-and-population-structure-of-wine-associated-isolates
#2
Georgios Banilas, Georgios Sgouros, Aspasia Nisiotou
Lachancea (Kluyveromyces) thermotolerans is an important member of the grape/wine yeast community with great technological potential for the wine industry. Although several molecular marker techniques have been developed for typing different yeast species, no one has been designed so far for L. thermotolerans. Here we present a simple and efficient method based on a multilocus SSR analysis for molecular typing and genetic diversity assessment of L. thermotolerans isolates. Following whole genome screening, five polymorphic microsatellite markers were selected and tested on a panel of grape isolates from different vineyards of two geographically separated viticultural zones, Nemea and Peza, in Greece...
December 2016: Microbiological Research
https://www.readbyqxmd.com/read/27798692/spatial-variability-of-grapevine-bud-burst-percentage-and-its-association-with-soil-properties-at-field-scale
#3
Tao Li, Xinmei Hao, Shaozhong Kang
There is a growing interest in precision viticulture with the development of global positioning system and geographical information system technologies. Limited information is available on spatial variation of bud behavior and its possible association with soil properties. The objective of this study was to investigate spatial variability of bud burst percentage and its association with soil properties based on 2-year experiments at a vineyard of arid northwest China. Geostatistical approach was used to describe the spatial variation in bud burst percentage within the vineyard...
2016: PloS One
https://www.readbyqxmd.com/read/27761135/the-influence-of-genotype-and-environment-on-small-rna-profiles-in-grapevine-berry
#4
Daniela Lopes Paim Pinto, Lucio Brancadoro, Silvia Dal Santo, Gabriella De Lorenzis, Mario Pezzotti, Blake C Meyers, Mario E Pè, Erica Mica
Understanding the molecular mechanisms involved in the interaction between the genetic composition and the environment is crucial for modern viticulture. We approached this issue by focusing on the small RNA transcriptome in grapevine berries of the two varieties Cabernet Sauvignon and Sangiovese, growing in adjacent vineyards in three different environments. Four different developmental stages were studied and a total of 48 libraries of small RNAs were produced and sequenced. Using a proximity-based pipeline, we determined the general landscape of small RNAs accumulation in grapevine berries...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27733112/transcriptomic-comparison-between-two-vitis-vinifera-l-varieties-trincadeira-and-touriga-nacional-in-abiotic-stress-conditions
#5
Margarida Rocheta, João L Coito, Miguel J N Ramos, Luísa Carvalho, Jörg D Becker, Pablo Carbonell-Bejerano, Sara Amâncio
BACKGROUND: Predicted climate changes announce an increase of extreme environmental conditions including drought and excessive heat and light in classical viticultural regions. Thus, understanding how grapevine responds to these conditions and how different genotypes can adapt, is crucial for informed decisions on accurate viticultural actions. Global transcriptome analyses are useful for this purpose as the response to these abiotic stresses involves the interplay of complex and diverse cascades of physiological, cellular and molecular events...
October 12, 2016: BMC Plant Biology
https://www.readbyqxmd.com/read/27714505/grapevine-phenology-and-climate-change-in-georgia
#6
G Cola, O Failla, D Maghradze, L Megrelidze, L Mariani
While the climate of Western Europe has been deeply affected by the abrupt climate change that took place in the late '1980s of the twentieth century, a similar signal is detected only few years later, in 1994, in Georgia. Grapevine phenology is deeply influenced by climate and this paper aimed to analyze how phenological timing changed before and after the climatic change of 1994. Availability of thermal resources in the two climatic phases for the five altitudinal belts in the 0-1250-m range was analyzed...
October 6, 2016: International Journal of Biometeorology
https://www.readbyqxmd.com/read/27693907/an-infrared-diagnostic-system-to-detect-causal-agents-of-grapevine-trunk-diseases
#7
Cecile Levasseur-Garcia, Hugo Malaurie, Nathalie Mailhac
In most vineyards worldwide, agents of grapevine trunk diseases represent a real threat for viticulture and are responsible for significant economic loss to the wine industry. The conventional microbiological isolation technique used to diagnose this disease is tedious and frequently leads to false negatives. Thus, a dire need exists for an alternative method to detect this disease. One possible way involves infrared spectroscopy, which is a rapid, nondestructive analytical tool that is commonly used for quality control of feed stuffs...
September 28, 2016: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/27601053/a-novel-fuzzy-expert-system-to-assess-the-sustainability-of-the-viticulture-at-the-wine-estate-scale
#8
L Lamastra, M Balderacchi, A Di Guardo, M Monchiero, M Trevisan
The wine industry is definitely committed in sustainability: the stakeholders' interest for the topic is constantly growing and a wide number of sustainability programs have been launched in recent years. Most of these programs are focusing on the environmental aspects as environmental sustainability indicators, greenhouse gases emissions and the use of Life Cycle Assessment methodology. Among the environmental indicators the carbon and the water footprint are often used. These indicators, while being useful to assess the sustainability performance of the winegrowing farms, do not take into account important aspects related to the agronomic management of the vineyard...
September 3, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27593461/exploring-the-genetic-variability-in-water-use-efficiency-evaluation-of-inter-and-intra-cultivar-genetic-diversity-in-grapevines
#9
Ignacio Tortosa, José Mariano Escalona, Josefina Bota, Magdalena Tomás, Esther Hernández, Enrique García Escudero, Hipólito Medrano
Genetic improvement of crop Water Use Efficiency (WUE) is a general goal because the increasing water scarcity and the trend to a more sustainable agriculture. For grapevines, this subject is relevant and need an urgent response because their wide distribution in semi-arid areas. New cultivars are difficult to introduce in viticulture due to the narrow dependency of consumer appreciation often linked to a certain particular wine taste. Clones of reputed cultivars would presumably be more accepted but little is known on the intra-cultivar genetic variability of the WUE...
October 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27513550/copper-accumulation-in-vineyard-soils-rhizosphere-processes-and-agronomic-practices-to-limit-its-toxicity
#10
REVIEW
Gustavo Brunetto, George Wellington Bastos de Melo, Roberto Terzano, Daniele Del Buono, Stefania Astolfi, Nicola Tomasi, Youry Pii, Tanja Mimmo, Stefano Cesco
Viticulture represents an important agricultural practice in many countries worldwide. Yet, the continuous use of fungicides has caused copper (Cu) accumulation in soils, which represent a major environmental and toxicological concern. Despite being an important micronutrient, Cu can be a potential toxicant at high concentrations since it may cause morphological, anatomical and physiological changes in plants, decreasing both food productivity and quality. Rhizosphere processes can, however, actively control the uptake and translocation of Cu in plants...
November 2016: Chemosphere
https://www.readbyqxmd.com/read/27500638/yeast-biodiversity-in-vineyard-environments-is-increased-by-human-intervention
#11
João Drumonde-Neves, Ricardo Franco-Duarte, Teresa Lima, Dorit Schuller, Célia Pais
One hundred and five grape samples were collected during two consecutive years from 33 locations on seven oceanic islands of the Azores Archipelago. Grape samples were obtained from vineyards that were either abandoned or under regular cultivation involving common viticultural interventions, to evaluate the impact of regular human intervention on grape yeast biota diversity in vineyards. A total of 3150 yeast isolates were obtained and 23 yeast species were identified. The predominant species were Hanseniaspora uvarum, Pichia terricola, Starmerella bacillaris and Issatchenkia hanoiensis...
2016: PloS One
https://www.readbyqxmd.com/read/27500633/are-epiphytic-microbial-communities-in-the-carposphere-of-ripening-grape-clusters-vitis-vinifera-l-different-between-conventional-organic-and-biodynamic-grapes
#12
Elizabeth Kecskeméti, Beate Berkelmann-Löhnertz, Annette Reineke
Using barcoded pyrosequencing fungal and bacterial communities associated with grape berry clusters (Vitis vinifera L.) obtained from conventional, organic and biodynamic vineyard plots were investigated in two subsequent years at different stages during berry ripening. The four most abundant operational taxonomic units (OTUs) based on fungal ITS data were Botrytis cinerea, Cladosporium spp., Aureobasidium pullulans and Alternaria alternata which represented 57% and 47% of the total reads in 2010 and 2011, respectively...
2016: PloS One
https://www.readbyqxmd.com/read/27478736/effects-of-a-warming-trend-on-cool-climate-viticulture-in-michigan-usa
#13
Steven R Schultze, Paolo Sabbatini, Lifeng Luo
Historically, Michigan's climate had mainly three challenges for grape production: growing season temperatures were too low, the growing season was too short and there was too much rain near harvest. However, climate change in the past decades has led to a vastly different landscape that is evolving to meet the new climate. Recently, there has been a significant move from Vitis labrusca (North American) grape plantings to Vitis vinifera (wine grapes) as a consequence of Michigan's shifting climate. The goal of this study was to analyze the historical shift in climate and its potential future impact on the grape industry...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27451171/-1-h-nmr-foodomics-reveals-that-the-biodynamic-and-the-organic-cultivation-managements-produce-different-grape-berries-vitis-vinifera-l-cv-sangiovese
#14
Gianfranco Picone, Alessia Trimigno, Paola Tessarin, Silvia Donnini, Adamo Domenico Rombolà, Francesco Capozzi
The increasing demand for natural foods and beverages, i.e. prepared by excluding synthetic chemicals along the whole production chain, has boosted the adoption of organic and biodynamic cultivation methods which are based on protocols avoiding use of synthetic pesticides. This trend is striking in viticulture, since wine production is largely shaped by the varying drinking attitudes of environment-friendly consumers. Using (1)H NMR, the compositions of grape berries, collected at harvest in 2009 and 2011, in experimental plots cultivated either with biodynamic or organic methods, were compared...
December 15, 2016: Food Chemistry
https://www.readbyqxmd.com/read/27451151/glyphosate-impacts-on-polyphenolic-composition-in-grapevine-vitis-vinifera-l-berries-and-wine
#15
Silvia Donnini, Paola Tessarin, Alejandra Ribera-Fonseca, Michele Di Foggia, Giuseppina Paola Parpinello, Adamo Domenico Rombolà
Glyphosate is the most widespread herbicide for weed management, being extensively used in viticulture. In this study we tested, under field conditions, the effects of glyphosate applications on the quality of berry and wine, from cv. Ancellotta (Vitis vinifera L.), with particular regard to anthocyanin concentration and composition. Ripening and growth were monitored by analyzing berry technological parameters and weight. Additionally, microvinifications were performed, in order to analyze the concentration of anthocyanins, other flavonoids and phenolic acids in wine...
December 15, 2016: Food Chemistry
https://www.readbyqxmd.com/read/27447926/aptitude-of-saccharomyces-yeasts-to-ferment-unripe-grapes-harvested-during-cluster-thinning-for-reducing-alcohol-content-of-wine
#16
Barbara Bovo, Chiara Nadai, Chiara Vendramini, Wilson Josè Fernandes Lemos Junior, Milena Carlot, Andrea Skelin, Alessio Giacomini, Viviana Corich
Among the viticultural techniques developed to obtain wine with reduced alcohol content, the use of unripe grapes with low sugar and high malic acid concentration, harvested at cluster thinning, was recently explored. So far, no studies have evaluated the fermentation performances of Saccharomyces in unripe grape musts, in terms of fermentation ability and reducing malic acid contents, to improve the quality of this low-alcohol beverage. In this work, we evaluated 24 S. cerevisiae strains isolated from Italian and Croatian vineyards with different fermentation aptitudes...
November 7, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/27446054/diversity-of-saccharomyces-cerevisiae-strains-isolated-from-two-italian-wine-producing-regions
#17
Angela Capece, Lisa Granchi, Simona Guerrini, Silvia Mangani, Rossana Romaniello, Massimo Vincenzini, Patrizia Romano
Numerous studies, based on different molecular techniques analyzing DNA polymorphism, have provided evidence that indigenous Saccharomyces cerevisiae populations display biogeographic patterns. Since the differentiated populations of S. cerevisiae seem to be responsible for the regional identity of wine, the aim of this work was to assess a possible relationship between the diversity and the geographical origin of indigenous S. cerevisiae isolates from two different Italian wine-producing regions (Tuscany and Basilicata)...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27439426/temperature-desynchronizes-sugar-and-organic-acid-metabolism-in-ripening-grapevine-fruits-and-remodels-their-transcriptome
#18
Markus Rienth, Laurent Torregrosa, Gautier Sarah, Morgane Ardisson, Jean-Marc Brillouet, Charles Romieu
BACKGROUND: Fruit composition at harvest is strongly dependent on the temperature during the grapevine developmental cycle. This raises serious concerns regarding the sustainability of viticulture and the socio-economic repercussions of global warming for many regions where the most heat-tolerant varieties are already cultivated. Despite recent progress, the direct and indirect effects of temperature on fruit development are far from being understood. Experimental limitations such as fluctuating environmental conditions, intra-cluster heterogeneity and the annual reproductive cycle introduce unquantifiable biases for gene expression and physiological studies with grapevine...
2016: BMC Plant Biology
https://www.readbyqxmd.com/read/27370903/climate-change-impacts-and-adaptive-strategies-lessons-from-the-grapevine
#19
Jonathan R Mosedale, Kirsten E Abernethy, Richard Smart, Robert J Wilson, Ilya M D Maclean
The cultivation of grapevines for winemaking, known as viticulture, is widely cited as a climate-sensitive agricultural system that has been used as an indicator of both historic and contemporary climate change. Numerous studies have questioned the viability of major viticulture regions under future climate projections. We review the methods used to study the impacts of climate change on viticulture in the light of what is known about the effects of climate and weather on the yields and quality of vineyard harvests...
July 2, 2016: Global Change Biology
https://www.readbyqxmd.com/read/27329628/transmission-of-grapevine-virus-a-and-grapevine-leafroll-associated-virus-1-and-3-by-heliococcus-bohemicus-hemiptera-pseudococcidae-nymphs-from-plants-with-mixed-infections
#20
S Bertin, V Cavalieri, I Gribaudo, D Sacco, C Marzachì, D Bosco
Mealybugs (Hemiptera: Pseudococcidae) represent a serious threat for viticulture as vectors of phloem-restricted viruses associated with the grapevine rugose wood and leafroll diseases. Heliococcus bohemicus (Šulc) is known to be involved in the spread of these two viral diseases, being a vector of the Grapevine virus A (GVA) and the Grapevine leafroll-associated virus 1 and 3 (GLRaV-1 and GLRaV-3). This study investigated the acquisition and transmission efficiency of H. bohemicus fed on mixed-infected plants...
August 2016: Journal of Economic Entomology
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