Figure 5
![Figure 5](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1754-6834-5-35/MediaObjects/13068_2011_Article_165_Fig5_HTML.jpg)
Structural dynamics of co-culture (3) with C. butyricum and C. pasteurianum during a 13-day glucose fermentation in a SBR. Cell numbers obtained from qPCR analysis based on recA (A) and gyrA (B) gene quantification. Sequence I (0–25 h), II (25–65 h), III (65–98 h), IV (98–138 h), V (138–181 h), VI (181–230 h), VII (230–303 h).