Abstract
In a simple calcium (Ca)- medium containing sucrose or glucose (pH 5.0), cultured tobacco cells exhibit an increase in soluble sugar content, which is blocked by aluminum (Al). The sugar content is determined by the balance between sugar uptake and sugar consumption. In this study, the effect of Al on sugar consumption was investigated. After a pulse label with radioactive sucrose, glucose or 3-0-methyl glucose (non metabolizable), cells were resuspended with Ca medium with or without Al, and was monitored the radioactivity retained in the cells. The results suggest that Al enhances the consumption of soluble sugar.
