Activity of arsenate reduction bacteria and transcriptional genes correlates with arsenic metabolism and cycling in landfill saturated zone

Basing KEGG annotation, pathways for As bioreduction were modeled in landfill, as well as As functional gene distribution among different As(V) contents at different landfill stages. Modules for C, N and S metabolism generally effected on As(V) resistance genes, thiosulfate oxidation, denitrification and dissimilatory nitrate reduction positively effected on arsC gene, while dissimilatory sulfate reduction and methanogenesis trended to take negative role.