terclim by ICS banner
IVES 9 IVES Conference Series 9 What triggers the decision to ripen 

What triggers the decision to ripen 

Abstract

The decision for grape berries to ripen involves a complex interplay of genetic regulation and environmental cues. This review explores the molecular mechanisms underlying the transition from vegetative growth to ripening, focusing on transcriptomic studies and the role of the NAC gene family. Transcriptomic analyses reveal a significant rearrangement of gene expression patterns during this transition, with up-regulation of ripening-related genes and down-regulation of those associated with vegetative growth. A molecular phenology scale providing a high-precision map of berry transcriptomic development, indicates that key molecular changes occur well before the onset of ripening. Our recent investigations highlight the involvement of NAC genes in regulating berry ripening. Among these, NAC33 is implicated in terminating photosynthetic activity and organ growth, NAC60 orchestrates both ripening and senescence processes, and NAC61 regulates berry late- and post-ripening processes.Furthermore, coexpression, DAP-seq and physical interaction analyses, revealed the existence of a transcriptional hierarchy among NACs governing ripening decisions. This abstract provides insights into the molecular events driving grape berry ripening and sets the stage for further exploration of NAC-mediated regulatory mechanisms.

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Article

Authors

Sara Zenoni1*, Chiara Foresti1, Alessandra Amato1, Erica D’Incà1, Nicola Vitulo1, Mario Pezzotti1, Tomas Matus2, Giovanni Battista Tornielli3, Marianna Fasoli1

1 Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
2 Institute for Integrative Systems Biology, I²SysBio (Universitat de València – CSIC), 46908, Paterna, Valencia, Spain
3 Department of Agronomy, Food, Natural Resources, Animals and the Environment, University of Padova, Viale dell’Università 16, 35020, Legnaro (PD), Italy

Contact the author*

Keywords

Ripening, Berry, Transcriptomic, Regulation, NAC

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Evaluation des aptitudes œnologiques des raisins rouges avec l’étude de certains nouveaux indices de maturité phénolique

Pour obtenir des vins d’une certaine gamme, il faut connaître les paramètres liés à la composition de la baie et introduire non seulement les paramètres classiques, c’est-à-dire sucres et acidité, mais aussi les paramètres qui tiennent compte

“Gentle” sustainable extraction from whole berry by using resonance waves and slight over CO2 overpressure

The traditional methods of grape extraction of enochemical compounds use very often mechanical energy by pistons such as the pigeage or mechanical energy produced by must (delestage, pumping over). Recent trend by winemaker is trying to introduce in the fermentation tank, whole berry grape to avoid even minimal oxidation. Unfortunately, the use of the traditional mechanical techniques aforementioned, very often do not guarantee the optimal extraction with residual sugars in the marc. Use of resonance waves (airmixingtm) and a slight overpressure by CO2 (adcftm) permit to work on whole berry guaranteeing the perfect extraction.

Study of Spanish wine sensory analysis data over a 3-year period

This study presents an investigation based on sensory analysis data of Spanish wines with geographical indications collected over a three-year period. Sensory analysis plays a crucial role in assessing the quality, characteristics, and perception of wines. The trained tasting panel at Dolmar Laboratory, accredited for objective sensory evaluation of wines since 2016, has been tasting over 5000 wines. However, it is since 2021, when a computer application for tastings was developed, that the digitalization of data allows for detailed statistical analysis of the results.

Soil management of interrow spacing as an important factor to protect the vineyard soils from runoff and erosion under the Mediterranean climate

Nearly one third of the Herault vineyard (south of France) is planted on soils very sensitive to water runoff and erosion

A novel dataset and deep learning object detection benchmark for grapevine pest surveillance

Flavescence dorée (FD) stands out as a significant grapevine disease with severe implications for vineyards. The American grapevine leafhopper (Scaphoideus titanus) serves as the primary vector, transmitting the pathogen that causes yield losses and elevated costs linked to uprooting and replanting. Another potential vector of FD is the mosaic leafhopper, Orientus ishidae, commonly found in agroecosystems. The current monitoring approach involves periodic human identification of chromotropic traps, a labor-intensive and time-consuming process.