Fig. 1.

Alignment of N- and C-terminal sequences of chlorarachniophyte FtsZD proteins. a The N-terminal leaders are predicted to consist of a signal peptide and a transit peptide-like sequence. Identical amino acids within the highly conserved FtsZ domains are boxed in black, and the C-terminal conserved motifs are highlighted with red boxes. The FtsZD-2 sequences of Chlorarachnion and Lotharella lack their N-terminal ends. (b, c) Confocal images of Amorphochlora amoebiformis cells expressing GFP fused with the N-terminal leader of AaFtsZD-1 and AaFtsZD-2. The images show red chlorophyll autofluorescence of plastids and green fluorescence of GFP. The pyrenoid (Py) is a part of plastid stroma that has no chlorophyll autofluorescence. The scale bars represent 5 μm