Fig. 4From: Transition of microbial community structures after development of membrane fouling in membrane bioreactors (MBRs)Transition of the 10 most dominant operational taxonomic units (OTUs) throughout the operation. Microbial community structures and phylogenetic information in Reactors 1 (a) and 2 (b). The phylogenetic information of each OTU is shown in the table on the right. The related species of the OTUs were assigned using a BLAST analysis (https://blast.ncbi.nlm.nih.gov/Blast.cgi) and the phylogenetic categories at a class level were assigned using QIIME softwareBack to article page