Fig. 4From: Microbial community dynamics in electroactive biofilms across time under different applied anode potentialsGenus level differences among microbial compositions. (a) Cluster analysis by PCoA. (b) Differences within different substages by Bray–Curtis similarity shown in box plot. Anode samples at substage 1 was referred to Sub1; anode samples cultivated at substage 2 was referred to Sub2; anode samples cultivated at substage 3 was referred to Sub3Back to article page