Identification of the transporter responsible for sucrose accumulation in sugar beet taproots : Natu
a, Light microscopic picture of a vacuole preparation after density gradient centrifugation. b, Sucrose content in taproot crude extract and isolated vacuoles per unit (u) α-mannosidase, a vacuolar marker enzyme (mean ± s.e.m.). c, Unrooted phylogentic tr...