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. 2016 Sep 2;11(1):58. doi: 10.1186/s40793-016-0175-5

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© The Author(s). 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — a Growth curve of strain MRB 220 grown in MLA medium with and without (w/o) nitrogen source, measured by the content of chlorophyll-a (Top), and optical density (OD, bottom); b Bright field micrograph of strain MRB 220 – H: heterocyst, G: hormogonium; c HS-SPME GC-MS/MS chromatograms for geosmin and 2-MIB standards and liquid culture of MRB 220 (d)