What question did this study set out to answer?

This research aims to understand the molecular and compositional differences in PIWI grape cultivars to inform winemaking practices.

April 15, 2026Open Access

Gene expression and metabolic variability in fungus‐resistant PIWI (‘Pilzwiderstandsfähig’) grape cultivars

Key Points

This research aims to understand the molecular and compositional differences in PIWI grape cultivars to inform winemaking practices.
Analyzed gene expression profiles of Italian red PIWI grapes
Assessed metabolic variability across different cultivars
Evaluated the implications for winemaking strategies
Identified unique gene expression patterns related to fungus resistance
Demonstrated significant compositional differences among PIWI cultivars
Highlighted potential for tailored winemaking practices based on genetic insights

Abstract

These results support a cultivar-resolved molecular and compositional framework for interpreting enological variability in Italian red PIWI grapes. The data may guide breeding and cultivar-tailored winemaking strategies, while broader generalization requires validation across additional genotypes, vintages and ripening stages. © 2026 The Author(s). Journal of the Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

Gene expression and metabolic variability in fungus‐resistant PIWI (‘Pilzwiderstandsfähig’) grape cultivars

Key Points

Abstract

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