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Titles and legends to supplementary figures
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Figure S1. OTUs rarefaction curves.
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Figure S2. Sequence counts profiles of taxa known to be involved in biogeochemical cycles. The
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profiles were generated by summing the numbers of DNA sequences belonging to taxa known to be
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involved in biogeochemical processes. The profiles do not reflect the functional status of the taxa,
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but rather their metabolic potential. The sums of all the sequence counts for each depth (across all
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depicted cycles) would not be expected to total 100% since some taxa could be involved in several
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biogeochemical processes or some sequences belong to unidentified taxa which could not be
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assigned to the subset of biogeochemical cycles here. As most prokaryotes capable of Fe(III)-
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reduction can also reduce Mn(IV) the counts of the two profiles were treated as the same. The
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dashed lane separates the oxic (O) strata of the lakes from the suboxic (S) ones. The x-axis
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represents sequences percentage and the y-axis the water depth. The taxa used for the profiles are
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listed in supplementary Table S6.
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Figure S3. Phylogenetic tree comprising representative sequences of OTUs belonging to
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Nanohaloarchaeota and Parvarchaeota candidate phyla, from the water sample collected at 3 m
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depth in Fara Fund Lake, and their known relatives within SILVA SSU Ref database.
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