Figure 6

Genetic potential for several steps of the sulfur cycle in Lake Cisó and Banyoles basin C-III using a combination of normalized marker genes. Arrow size proportional to the potential flux of the sulfur pathways (100% value, see Supplementary Table S3). Relative abundances for the main microbes potentially driving each conversion step are shown (only for those that contributed >1% of the marker genes mixture). **Campylobacteraceae contributed through sox genes not reported in KEGG database.