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Figure 4

From: Molecular genetic and geochemical assays reveal severe contamination of drinking water reservoirs at the ancient Maya city of Tikal

Figure 4

Cyanobacteria molecular genetic results from four reservoirs at Tikal. Evidence of cyanobacteria, or blue-green algae, blooms of Planktothrix and Microcysitis (both known to produce highly toxic microcystins) were found in the Temple and Palace Reservoirs. Taxa marked with an “*” denote unclassified strains. Supporting data can be found in Supplementary Table S4.

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