Fig. 2From: Combined artificial high-silicate medium and LED illumination promote carotenoid accumulation in the marine diatom Phaeodactylum tricornutumFusiform cell size comparison. The P. tricornutum cells were collected at 12 days of PT-7 or PT-8 medium cultivation and then observed by transmission electron microscopy (TEM). The fusiform cell width and length were averaged from 100 fusiform cells for each sample. The t-test was applied to compare the group differences and asterisk represented the significant difference between two groups (P < 0.05)Back to article page