SWEET17, a Facilitative Transporter, Mediates Fructose Transport across the Tonoplast of Arabidopsis Roots and Leaves

• Published in: Plant physiology (Bethesda) Vol. 164; no. 2; pp. 777 - 789
• Main Authors: Guo, Woei-Jiun, Nagy, Reka, Chen, Hsin-Yi, Pfrunder, Stefanie, Yu, Ya-Chi, Santelia, Diana, Frommer, Wolf B., Martinoia, Enrico
• Format: Journal Article
• Language: English
• Published: United States American Society of Plant Biologists 01.02.2014
• Subjects: Adaptation, Physiological - drug effects; Adaptation, Physiological - genetics; Arabidopsis; Arabidopsis - drug effects; Arabidopsis - genetics; Arabidopsis - metabolism; Arabidopsis Proteins - genetics; Arabidopsis Proteins - metabolism; Biological Transport - genetics; Cell membranes; Cold Temperature; fructose; Fructose - metabolism; Fructose - pharmacology; Gene Expression Regulation, Plant - drug effects; Genes, Plant - genetics; Green Fluorescent Proteins - metabolism; Leaves; Membrane Transport Proteins - genetics; Membrane Transport Proteins - metabolism; MEMBRANES, TRANSPORT, AND BIOENERGETICS; Plant Leaves - drug effects; Plant Leaves - genetics; Plant Leaves - metabolism; Plant roots; Plant Roots - drug effects; Plant Roots - genetics; Plant Roots - growth & development; Plant Roots - metabolism; Plants; Protoplasts; RNA, Messenger - genetics; RNA, Messenger - metabolism; Root growth; roots; Seedlings; Sugars; Tonoplast; Vacuoles; Vacuoles - drug effects; Vacuoles - metabolism

Fructose (Fru) is a major storage form of sugars found in vacuoles, yet the molecular regulation of vacuolar Fru transport is poorly studied. Although SWEET17 (for SUGARS WILL EVENTUALLY BE EXPORTED TRANSPORTERS17) has been characterized as a vacuolar Fru exporter in leaves, its expression in leaves...