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. 2015 Sep 22;5:14316. doi: 10.1038/srep14316

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Copyright © 2015, Macmillan Publishers Limited

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(A) Heat map showing the relative abundance of reads related to the polysaccharides dextran, xanthan, alginate and other polysaccharides in the metagenome of the anaerobic granules (AnG E and AnG B; note that the metagenome of AnG W was not available). Reads from metagenomes of activated sludge (AS), from two enhanced biological phosphorus removal (EBPR) plants, and from a conventional wastewater treatment plant (WWTP) are shown for comparison. (B) Simplified scheme of regulators and gene clusters of alginate biosynthesis showing the gene reads detected in the anaerobic granules. The positive sign indicates that those regulators initiate the transcription of the alginate operon. PMM refers to phosphomannomutase. Further details regarding the genetics of alginate biosynthesis can be found in references45,46.