Abstract
Transient expression of electroporated DNA was monitored in protoplasts of several monocot and dicot species by assaying for expression of chimeric chloramphenicol acetyltransferase (CAT) gene constructions. Expression was obtained in the dicot species of Daucus carota, Glycine max and Petunia hybrida and the monocot species of Triticum monococcum, Pennisetum purpureum, Panicum maximum, Saccharum officinarum, and a double cross, trispecific hybrid between Pennisetum purpureum, P. americanum, and P. squamulatum. Recovery and viability of protoplasts after electroporation decreased with increasing voltages and capacitance while CAT activity increased up to a critical combination of voltage and capacitance beyond which the activity dramatically decreased. The optimal compromise between DNA uptake and expression versus cell survival was determined for D. carota and applied successfully to the other species. Maximum transient expression occurred 36 hours after electroporation of D. carota. The potential for using this procedure to rapidly assay gene function in dicot and monocot cells and application of this technique to obtain transformed cereals is discussed.
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Communicated by J. M. Widholm
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Hauptmann, R.M., Ozias-Akins, P., Vasil, V. et al. Transient expression of electroporated DNA in monocotyledonous and dicotyledonous species. Plant Cell Reports 6, 265–270 (1987). https://doi.org/10.1007/BF00271995
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DOI: https://doi.org/10.1007/BF00271995