Fig. 5

Effect of depth (a) and distillery (b) on COG function of bacterial communities. The alphabetic codes represent COG functional categories, as follows: A RNA processing and modification; B chromatin structure and dynamics; C energy production and conversion; D cell cycle control, cell division, and chromosome partitioning; E amino acid transport and metabolism; F nucleotide transport and metabolism; G carbohydrate transport and metabolism; H coenzyme transport and metabolism; I lipid transport and metabolism; J translation, and ribosomal structure and biogenesis; K transcription; L replication, recombination, and repair; M cell wall/membrane/envelope biogenesis; N cell motility; O posttranslational modification, protein turnover, and chaperones; P inorganic ion transport and metabolism; Q secondary metabolitesmetabolite biosynthesis, transport, and catabolism; R general function prediction only; S function unknown; T signal transduction mechanisms; U intracellular trafficking, secretion, and vesicular transport; V defense mechanisms; W extracellular structures; Y nuclear structure; Z cytoskeleton. Significant differences are illustrated with ***P < 0.001, **0.001 ≤ P < 0.01, and *0.01 ≤ P < 0.05