Beta vulgaris
L.). The spatial and temporal expression of both antigens was studied in suspension cells used as the source-tissue for protoplast isolation, in suspension- and mesophyll-derived protoplasts, and in cells which developed from both types of protoplast. Immunofluorescence and immunocytochemical-electron microscopic methods revealed that labeling was present in the cell walls of most suspension cells and also in the incipients of cell walls synthesized around the protoplasts. This signal became much more intense as rebuilding of the cell wall progressed during culture. Relatively weaker labeling was observed in the cytoplasm, where it was frequently associated with the vacuolar compartment. Signal intensity varied between individual cells of the same population and in successive stages of development, but was always stronger with JIM13 than with JIM8. The role of JIM13-responsive epitope in the development of suspension-derived protoplasts was further studied by its ability to bind antibody added to cultures of different ages. Both JIM8- and JIM13-responsive epitopes were widespread in sugar beet cells of different origin and stage of cell wall synthesis. These epitopes may play an important role in cell wall formation and growth under in vitro conditions.
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Received 17 August 1998/ Accepted in revised form 13 January 1999
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Butowt, R., Niklas, A., Rodriguez-Garcia, M. et al. Involvement of JIM13- and JIM8-Responsive Carbohydrate Epitopes in Early Stages of Cell Wall Formation. J Plant Res 112, 107–116 (1999). https://doi.org/10.1007/PL00013851
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DOI: https://doi.org/10.1007/PL00013851