TCE reduction rate and cell growth of strain 195 at different sulfide concentrations, DvH cell growth at different sulfide-S concentrations, and S. wolfei cell growth at different sulfide concentrations at the end of the experiment (Fig. S1); coculture DvH/195 amended with 2 mM sulfate along with TCE under H2/CO2 headspace (electron acceptor limitation) at different starting biomass ratios of DvH/strain 195 (Fig. S2); coculture DvH/195 amended with 5 mM sulfate along with TCE under H2/CO2 headspace (electron acceptor limitation) at different starting biomass ratios of DvH/strain 195 (Fig. S3); constructed triculture S. wolfei/ DvH/195 amended with 2 mM sulfate along with TCE and 5 mM butyrate (electron donor limitation) at different starting biomass ratios of S. wolfei (Fig. S4); triculture S. wolfei/ DvH/195 with 5mM sulfate amendment (Fig. S5); after three consecutive subcultures, TCE dechlorination activity and H2 production in triculture S. wolfei/ DvH/195 with 2mM sulfate amendment (Fig. S6); SEM image of the aggregate formation of triculture S. wolfei/DvH/195 at the late exponential phase in one subculture event (Fig. S7); half reactions and their Gibb's standard free energy per electron equivalent under standard conditions (Table S1); syntrophic co-/tricultures with initial biomass concentration ratios (Table S2); gene expression profiles of reductive dehalogenase genes and significant up-/downregulated genes in response to sulfide stress by D. mccartyi 195 (Table S3).
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