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. 2017 Jun 16;8:1132. doi: 10.3389/fmicb.2017.01132

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Copyright © 2017 Guimarães, Yunes, Cretoiu and Stal.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Effect of a salinity down-shock on nitrogenase activity per heterocyst during culturing of strain RS0112 at three different salinities. (A) BG11: 0‰, (B) BSN: 15‰, (C) ASN: 30‰.