terclim by ICS banner
IVES 9 IVES Conference Series 9 Berry shrivel causes – summarizing current hypotheses

Berry shrivel causes – summarizing current hypotheses

Abstract

Diverse ripening disorders affect grapevine resulting in high economic losses worldwide. The common obvious symptom is shriveling berries, however the shriveling pattern and the consequences for berry quality traits are distinct in each disorder. Among them, the disorder berry shrivel is characterized by a reduced sugar accumulation short after the onset of berry ripening leaving the clusters unsuitable for wine processing. Although our knowledge on BS increased recently, potential internal or external triggers contributing to the induction of BS are yet to be explored. Based on previously obtained results, we speculate on three main hypotheses for future research: i) BS starts with a failure in phloem unloading of sugar and its metabolism in berry cytosol, ii) the brush area of berries is subjected to a premature cell death starting BS and further promotes programmed cell death in other berry areas and pedicels, and iii) the onset of berry ripening is disturbed either by phytohormone or other signals with consequences on sink strength. Sampling strategies need to be adapted to account for ripening asynchrony and include pre-symptomatic clusters. Additionally, innovative ideas and new methodological approaches are necessary to decipher the spatial and temporal factors in BS induction on the biochemical, transcriptional and morphological level. BS is a challenge for viticulture, as prevention strategies are currently not reliable. Identifying the causal events could facilitate to adapt vineyard management to reduce BS risks.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Article

Authors

Michaela Griesser*1, Stefania Savoi2, Bhaskar Bondada3, Astrid Forneck1, Markus Keller4

1 University of Natural Resources and Life Sciences, Vienna (BOKU), Institute of Viticulture and Pomology, Austria
2 University of Turin, Department of Agricultural, Forest and Food Sciences, Italy
3 Washington State University Tri-Cities, Department of Viticulture and Enology, USA
4 Washington State University, Irrigated Agriculture Research and Extension Center, Department of Viticulture and Enology, USA

Contact the author*

Keywords

sugar metabolism, mesocarp cell death, ripening onset regulation

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Revealing the origins of old bordeaux wines using terpene quantification

The overall quality of fine wines is linked to the development of “bouquet” during wine bottle ageing (1). Bordeaux red wine ageing bouquet is defined by the association of several odours

Read More

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

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.

Read More

History of inorganic and isotopic signatures in Champagne over the last century: lessons

The notion of «terroir» refers to the link between the composition, quality and taste of a wine, on the one hand, and its place of origin, on the other. It involves, among other things, the signature of soil elements, as well as the influence of climatic conditions and plant material used. The composition of the wine is also influenced by the winemaking, storage and bottling processes. We were lucky enough to have a time series of the same champagne, from the end of the first world war to the present. On this exceptional time series, we followed, with the most advanced methods, all the elemental signatures by isotopic multi-dilution, the evolution of the isotopic ratios of heavy elements with very high precision of Sr, Pb, B and Cu.

Read More

A multilayer interactive web map of the wine growing region carnuntum with emphasis on geochemical and mineralogical zoning

During a three-year study the vineyards of the wine-growing region Carnuntum have been investigated for their terroir characteristics (climate, soil, rocks) and major viticulture functions. As an outcome of the study, various thematic layers and geodata analyses describe the geo-environmental properties and variability of the wine growing region and delimit homogenous multilayer mapping units by using a Geographic Information System.

Read More

Learning from remote sensing data: a case study in the Trentino region 

Recent developments in satellite technology have yielded a substantial volume of data, providing a foundation for various machine learning approaches. These applications, utilizing extensive datasets, offer valuable insights into Earth’s conditions. Examples include climate change analysis, risk and damage assessment, water quality evaluation, and crop monitoring. Our study focuses on exploiting satellite thermal and multispectral imaging, and vegetation indexes, such as NDVI, in conjunction with ground truth information about soil type, land usage (forest, urban, crop cultivation), and irrigation water sources in the Trentino region in North-East of Italy.

Read More