Fig. 5: Confocal microscopy images of Chroococcidiopsis thermalis cells acquired after 72 h in Ω = 0.0 and Ω = 0.3 experimental fluids.
From: In-situ laboratory monitoring of cyanobacterial influence on calcite dissolution

Each panel shows phase contrast (top left), green fluorescence (cell envelope or EPS), red fluorescence (chlorophyll a autofluorescence), and merged images. Both conditions show preserved pigment fluorescence and envelope integrity, suggesting viability and metabolic activity under suboptimal conditions.