FIG. 3.

Responses of the HS (A and B) and LS (C and D) communities to the glucose perturbation. (A and C) Morphotype frequency and proportional community similarity in reactor 7 (A) and reactor 1 (C). (B and D) ARDRA of the reactor communities 0, 8, and 24 days after the perturbation. Only reactor 8 was analyzed on day 24. Unique OTUs were defined as those that occurred once in each clone library (e.g., they were observed only once throughout the entire study in each reactor set). Species names indicate the most closely related known organisms. Percent similarities are indicated in parentheses.