High‐resolution histographical mapping of glucose concentrations in developing cotyledons of Vicia faba in relation to mitotic activity and storage processes: glucose as a possible developmental trigger

摘要: Summary Previous studies provided evidence that the carbohydrate status triggers developmental processes in growing cotyledons ofVicia faba. We describe here high-resolution mapping of glucose concentrations tissue sections developing faba bean by quantitative bioluminescence and single-photon imaging. Patterns local distributions are compared with cell type, mitotic index distribution pattern starch. During cotyledon differentiation, gradients concentration emerge which related to particular type. Higher found non-differentiated premature regions whereas mature starch-accumulating contain particularly low glucose. In addition, is correlated activity. The therefore gradient. Our data provide for first time steep across plant embryos favour idea sugar may have morphogenic functions cotyledons.