Article
The sucrose transporter StSUT1 localizes to sieve elements in potato tuber phloem and influences tuber physiology and development.
Plant physiology - 1 Jan 2003
Kühn Christina, Hajirezaei Mohammad-Reza, Fernie Alisdair R, Roessner-Tunali Ute, Czechowski Tomasz, Hirner Brigitte, Frommer Wolf B
Abstract excerpt
The sucrose (Suc) H(+)-cotransporter StSUT1 from potato (Solanum tuberosum), which is essential for long-distance transport of Suc and assumed to play a role in phloem loading in mature leaves, was found to be expressed in sink tubers. To answer the question of whether SUT1 serves a function in phloem unloading in tubers, the promoter was fused to gusA and expression was analyzed in transgenic potato. SUT1...
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