Fig. 6.

Contribution made by different microbes in consortium CY-1 when 50% phenanthrene was removed. The metabolic pathways were illustrated by the combination of the result obtained from intermediates detection and catabolic gene clone libraries. Solid arrow indicates a single reaction while broken arrow represents two or more transformation steps. Contribution made by Marinobacter and Martelella in the upstream degrading process was calculated by the abundance of these two genera in community structure. The contribution of each downstream pathway was calculated by the copies of each catabolic gene quantified from total RNA. The related microbes were summarized from the clone libraries and isolated pure cultures. Dominant genera in each downstream pathway which were determined by the proportion of catabolic gene in clone libraries and the abundance in community structure were shown in bold