“…Proteobacteria , Actinobacteria, and Firmicutes are the dominant phyla on the OS. The most common taxa at the genus level are Pseudomonas , Propionibacterium , Bradyrhizobium, Corynebacterium, Acinetobacter , Brevundimonas, Staphylococci , Aquabacterium , Sphingomonas , Streptococcus , Streptophyta, and Methylobacterium , although potential contamination may have influenced their identification [ 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ].…”