Fig. 5
Effects of nitrogen availability on S. microadriaticum. a Cell populations and coccoid proportions of S. microadriaticum in different nitrogen-limited conditions. b Symbiont cell density of coral fragments supplied with different nutrients. In both figures, colored dots and error bars represent the mean ± 95% confidence intervals of symbiont cell density. Letters indicate the statistical differences between treatments which were calculated using one-way ANOVA with Games-Howell post hoc tests. c Real-time cell number changes over 40 h according to time-lapse imaging. d Distribution of tracking duration for cells within the imaging area. e Distribution of travel distance for cells detected within the field of view over 40 h