A protocol for protoplast isolation was developed and tested with five
Capsicum genotypes representing two cultivated species, C. annuum and
C. chinense. Key variables included growth conditions for source plan
ts and the concentration of mannitol used as osmoticum. Protoplasts is
olated from each of the genotypes became infected when inoculated via
electroporation with viral RNA from either pepper mottle potyvirus, to
bacco etch potyvirus or cucumber mosaic cucumovirus.