Fig. 2

The EC growth status at different culture durations. (a) Day 1; (b) Day 4; (c) Day 12; (d) Day 14; (e) Day 16; (f) Day 20. All bars = 1 cm.

The EC growth status at different culture durations. (a) Day 1; (b) Day 4; (c) Day 12; (d) Day 14; (e) Day 16; (f) Day 20. All bars = 1 cm.