Interactive comment on “Fine scale variability in methanol uptake and oxidation in the micro-layer and near-surface waters of the Atlantic” by J. L. Dixon and P. D. Nightingale
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Referee 2 (C1869) 6) Based on a significant correlation between methanol incorporation into biomass and the abundance of Prochlorococcus, the authors suggest that this cyanobacterial group is capable of methanol oxidation. While this observation has certain interest, it is not a direct proof, and indeed no correlation was found for the same parameters across the environmental gradient sampled. Therefore, in my view, this finding should receive less attention in the discussion.
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Interactive comment on “Fine scale variability in methanol uptake and oxidation in the micro-layer and near-surface waters of the Atlantic” by J. L. Dixon and P. D. Nightingale
General comments: This study combines measurements of methanol uptake/oxidation along several depth profiles and during a diel experiment in North Atlantic waters. In contrast to the traditional view of highly specialized methylotrophs growing solely on C1 compounds, the recent finding that members of the ubiquitous SAR11 clade are able to obtain energy from these substrates suggests that this ...
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