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. 2020 Jul 17;11:1659. doi: 10.3389/fmicb.2020.01659

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Copyright © 2020 Qiao, Wang and Lu.

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) and the copyright owner(s) 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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A cyanobacterial ADO-ALDH alka(e)ne biodegradation pathway was identified by in vitro enzymatic assays. (A) GC-MS chromatograms of Syn7942 ADO-ALDH reaction with nonanal as the substrate. The inset shows the mass spectra of octane, octanal, octanol, and octanoic acid from GC-MS analysis (red) compared with mass spectra from the National Institute of Standards and Technology (NIST) database (blue). (B) Product profiles of the Syn7942 ADO-ALDH reaction with nonanal as the substrate. (C) Product profiles of the Nos73102 ADO-ALDH reaction with nonanal as the substrate. (D) Proposed mechanism for the cyanobacterial ADO-ALDH alka(e)ne degradation pathway. Error bars indicate the standard deviation of triplicate analyses.