The Effect of Abiotic Stress on Grapevine: A Physiological, Transcriptional and Metabolic Perspective Volume II

Dear Colleagues,

According to WMO and IPCC, the world has experienced unprecedented high-impact climate extremes over the past few decades with droughts, floods, and heat waves occurring in all parts of the world. Under this changing climate, as the quality and yield of grapevine are directly linked with local climate variables through the terroir expression, wine-growing regions now perfectly suited to a given cultivar may become less so. However, the potential impact of spatially heterogeneous climate changes on grapevine physiology is still largely unknown. Understanding the physiological and metabolic response of plants to challenging environments is essential for preventing and mitigating possible negative effects on yield and grape quality. As stresses involve simultaneous physiological alterations, a comprehensive characterization of the role of metabolic pathways in stress response requires high-throughput data and genome-scale approaches. Moreover, in different wine growing regions, mitigation strategies have been adopted in order to overcome the effects of the excessive temperatures and water stress (antitranspirants), and to delay the maturation in early ripening grapevine varieties (late apical shoot trimming or leaf removal). Such techniques determine modifications in plant physiology and grape maturation with transcriptome reprogramming and metabolite metabolism shifts that need to be understood. This Special Issue of Plants will highlight the mechanisms of regulation of grapevine physiology, organ metabolism, source-sink signaling, hormone crosstalk, and whole-plant ecophysiological responses to abiotic stresses expected in current and future climate change scenarios.

Dr. Eleonora Cataldo
Dr. Giovan Battista Mattii
Guest Editors

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