Grapevine aquaporins: Diversity, cellular functions, and ecophysiological perspectives

Area of Science:

• Plant Physiology
• Molecular Biology
• Viticulture

Background:

• Wine quality is linked to grapevine water status, often optimized by moderate drought stress.
• Aquaporins are key regulators of water transport across plasma membranes, influencing plant hydraulics.
• Understanding aquaporin function is vital for optimizing grapevine agricultural practices and breeding.

Purpose of the Study:

• To review recent advances in understanding water transport in grapevine at the cellular level via aquaporins.
• To explore the structure, diversity, localization, transport properties, and regulation of grapevine aquaporins.
• To provide an ecophysiological perspective on the role of grapevine aquaporins in drought stress response.

Main Methods:

• Literature review of recent scientific publications.
• Analysis of aquaporin structure, function, and regulation.
• Ecophysiological assessment of aquaporin roles in drought adaptation.

Main Results:

• Aquaporins facilitate rapid and reversible adjustments in plasma membrane hydraulic conductance.
• Grapevine aquaporins play critical roles in adapting to soil water scarcity.
• Diverse aquaporin types exhibit specific cellular localizations and regulatory mechanisms.

Conclusions:

• Molecular-level comprehension of grapevine aquaporins is essential for improving wine quality and agricultural resilience.
• Targeting aquaporin activity can enhance grapevine adaptation to drought stress.
• Further research into aquaporin regulation will support advanced breeding programs for superior grape varieties.