Fig. 1From: Insights into the keratin efficient degradation mechanism mediated by Bacillus sp. CN2 based on integrating functional degradomicsDegradation dynamics of feather keratin by Bacillus sp. CN2. a–d Biodegradation of intact chicken feathers by the keratinolytic bacterium CN2. e–h SEM to examine changes in feather morphology, where (e) is the intact feather, and f–h show the feathers after 12, 24, and 36 h of incubation, respectively. The red arrows indicate the change in diameter of the feather morphologyBack to article page