Photoheterotrophy of bacterioplankton is ubiquitous in the surface oligotrophic ocean

Evans, Claire ORCID: https://orcid.org/0000-0003-0569-7057; Gómez-Pereira, Paola R.; Martin, Adrian P. ORCID: https://orcid.org/0000-0002-1202-8612; Scanlan, David J.; Zubkov, Mikhail V.. 2015 Photoheterotrophy of bacterioplankton is ubiquitous in the surface oligotrophic ocean. Progress in Oceanography, 135. 139-145. 10.1016/j.pocean.2015.04.014

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Abstract/Summary

Accurate measurements in the Southern Hemisphere were obtained to test a hypothesis of the ubiquity of photoheterotrophy in the oligotrophic ocean. We present experimental results of light-enhanced uptake of methionine, leucine and ATP by bacterioplankton during two large-scale transects of the South Atlantic. Light increased the uptake of substrates by both dominant bacterioplankton groups, Prochlorococcus and SAR11, as well as for the bulk microbial community. Our consistent experimental evidence strongly indicates that photoheterotrophy is characteristic of dominant bacterioplankton populations in the global oligotrophic ocean.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1016/j.pocean.2015.04.014
ISSN:	00796611
Date made live:	22 Jun 2015 16:07 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/511109

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