Table 3. Potential ecological roles of core genera in CAS and A-stage bioreactors.

Genus	Bioreactor	BOD removal	Denitrification	P removal	Suspended biomass formation	Predation
Acidobacterium	CAS	Chen et al.14	–	–	–	–
Acidovorax	AB	Heylen et al.26	Heylen et al.26	–	–	–
Aeromonas	AB	Chong et al.25	–	–	–	Chong et al.28
Arcobacter	AB	Collado et al.25	Collado et al.25	–	–	–
Bacteroides	AB	Ueki et al.30	–	–	Ueki et al.30	–
Chloroflexus	CAS	-	-	–	Gonzalez-Gil & Holliger20	–
Dechloromonas	CAS & AB	Kim et al. 2013	Kim et al. 2013	–	–	–
Flavobacterium	CAS	-	–	–	Guo et al.22	–
Fluviicola	CAS	Woyke et al.15	–	–	–	–
Haliscomenobacter	CAS	Kragelund et al.21	–	–	Kragelund et al.21	Kragelund et al.21
Hydrogenophaga	AB	Kämpfer et al.27
Rhodocyclus	CAS	-	Thomsen et al.17	Thomsen et al.17	–	–
Rhodoferax	CAS & AB	Yao et al.19	Yao et al.19	–	–	–
Sterolibacterium	CAS	Tarlera & Denner16	Tarlera & Denner16	–	–	–
Zoogloea	AB		–	–	Martins et al.24; Shao et al.29	–