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…

Acceptability of canned wines: effect of the level of involvement of consumers and type of wine

In recent years there has been a growing demand for alternative packaging designs in the food industry focused on diminishing the carbon footprint. Despite the environmental advantages of cans versus bottles, the traditional environment of wine has hindered the establishment of less contaminant containers. In this context, the objective of this study was to understand and generate knowledge about consumers´ perception of canned wines in comparison to bottled wines.

Impact of long term agroecological and conventional practices on subsurface soil microbiota in Macabeu and Xarel·lo vineyards

There is a growing trend on the transition from conventional to agroecological management of vineyards. However, the impact of practices, such as reduced-tillage, organic fertilization and cover crops, is not well-understood regarding the soil microbial diversity, and its relationship with the soil physicochemical properties in the subsurface depth near the rooting zone. Soil bacterial diversity is an important contributor towards plant health, productivity and response to environmental stresses. A field experiment was conducted by sampling subsurface soil bacterial community (NGS and qPCR) near to the root zone of Macabeu and Xarel·lo vineyards, located at the Penedes. 3 organic (ECO) and 3 conventional (CON) vineyards, with more than 10 years of respective management were sampled (n=5 each plot). ECO practices did not affect bacterial and fungal abundance but increased significantly the ammonium oxidizing bacteria and alpha-diversity (Inv.Simpson). Interestingly beta-diversity was significantly affected by the management strategy. ANOSIM-tests revealed a significative effect of the management (ecological vs conventional) and plot, on the soil microbial structure (ASV abundance). Main phyla depicted were Proteobacteria, Actinobacteria and Acidobacteria, whose relative abundances were not affected by the management. EdgeR assay revealed a significant increase of Cyanobacteria and decrease of Gemmatimonadetes and Firmicutes phyla in ECO. Interestingly, the grapevine variety was not correlated with the soil microbial community structure. Mantel-test revealed an important correlation (Spearman) of some physicochemical parameters with the soil microbiota structure, in order of importance: texture, EC, pH Ca/Mg, Mg/P, K+, Mg2+, Ca2+, SO42-, and OM. N-NH4 and NTK, which were higher in the ECO managed soils, did not correlated significantly with the soil microbiome population. The results revealed the importance of combining a deep physicochemical characterization of each replicate with the microbial diversity assessment to gain better insights on the relationship between soil microbiome and vineyard management.

Il piano regolatore delle città’ del vino: aspetti urbanistici, economici e turistici

[lwp_divi_breadcrumbs home_text="IVES" use_before_icon="on" before_icon="||divi||400" module_id="publication-ariane" _builder_version="4.19.4" _module_preset="default" module_text_align="center" text_orientation="center" custom_margin="65px||18px||false|false"...

How a microscopic yeast makes a big difference – how geographic limitations of yeast populations can determine the regional aroma of wine

Aim: Microbial biogeography contributes to regional distinctiveness of agricultural products and is important to determine for quality and marketing of wine products. We evaluated the microbial influence on wine characteristics by considering the microbial diversity of soil, plant, grapes, must and wine in grapegrowing regions across Victoria, Australia. 

Genomic perspective of Lachancea thermotolerans in wine bioacidification

We have sequenced two commercial strains of Lachancea thermotolerans (Lt) from the company Lallemand: Laktia™ y Blizz™.