Fig. 2: Scanning electron microscopy observation of SCUT-3 cultured on feather and comparison of feather degradation by SCUT-3 and three other Streptomyces sp. FDB.
From: The feather degradation mechanisms of a new Streptomyces sp. isolate SCUT-3
a Untreated chicken feather control. b Feather cultured with SCUT-3 for 36 h, showing the mycelium tangled around barbules. c Feather cultured with SCUT-3 for 60 h, showing the compact attachment of the mycelium and the digestion and slit of the barbule surface by SCUT-3. d, e Feather cultured with SCUT-3 for 84 h, showing the formation, diffusion of SCUT-3 spores. f Spores diffusion is accompanied by spore resuscitation, beginning a new growth cycle. g–i Comparison of the degradation rate, keratinase activity, reducing power; n = 3/group, *P < 0.05. j Penetration of SCUT-3 and three other Streptomyces sp. FDB in 1% and 4% LB agar. P-values between groups were obtained by unpaired two-tailed Student’s t test. All data were presented as mean ± SD.
