Fig. 2
From: A new widespread subclass of carbonic anhydrase in marine phytoplankton

Transmission electron micrographs of immunogold labeled LCIP63 in T. pseudonana. a–e Cells cultured at 50 ppm CO2. c Close-up of the rectangular box in (a). f, g Cells cultured at 20,000 ppm CO2. Gold particles are indicated by yellow arrowheads. Ch, Chloroplast; Pyr, Pyrenoid. Bar = 500 nm