Fig. 6From: Regeneration and transient gene expression in protoplasts of Draparnaldia (chlorophytes), an emerging model for comparative analyses with basal streptophytesInfluence of protoplast plating density on regeneration. a 102–103 protoplasts/mL. b 104 protoplasts/mL. c 105 protoplasts/mL. Three stages are shown: filaments (arrow), dead protoplasts (arrow head) and enlarged protoplasts (asterisks). Pictures were taken 20 days after plating. Scale bar = 80 μmBack to article page