Translocation of [C]sucrose in wheat.
Flag leaves of wheat plants (Triticum aestivum L. em. Thell. cv ;Duke') were supplied with (14)C(glucosyl)sucrose. Translocated [(14)C]sucrose was isolated, then hydrolyzed. Label appeared in both the hexose moieties indicating that some randomization of label had occurred. However, near the radioactive front essentially all of the (14)C was in the glucose moiety, suggesting that randomization occurred after unloading, supporting the conclusion that sucrose was taken up intact by phloem and translocated unaltered.
Robinson
N L
NL
Department of Botany and Plant Pathology, Colorado State University, Fort Collins, Colorado 80523.
Hendrix
J E
JE