Arbuscular mycorrhizal fungi (AMF) form beneficial partnerships with grapevine roots, improving plant health and wine quality. These fungi help grapevines absorb water and nutrients more efficiently, making them more resistant to drought and diseases. The effectiveness of this partnership depends on which specific fungi are present, the type of grapevine rootstock used, and how vineyard soil is managed. As climate change creates new challenges for wine growers, using AMF as natural biostimulants could help grapevines better tolerate heat, drought, and other stresses.