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Correction ARTICLE

Front. Microbiol., 24 July 2017 | https://doi.org/10.3389/fmicb.2017.01420

Corrigendum: Why Quorum Sensing Controls Private Goods

  • 1Department of Microbiology, Oregon State University, Corvallis, OR, United States
  • 2Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany

A corrigendum on
Why Quorum Sensing Controls Private Goods

by Schuster, M., Sexton, D. J., and Hense, B. A. (2017). Front. Microbiol. 8:885. doi: 10.3389/fmicb.2017.00885

Here we intend to clarify the function of rbsD, a conserved gene involved in bacterial ribose utilization. As stated in the original article, rbsD is absent in P. aeruginosa, which is the likely cause for its slow growth rate on adenosine as a carbon source. Adenosine is cleaved into ribose and adenine by a periplasmic, quorum sensing-dependent nucleoside hydrolase (Nuh). In the section “The case of Nuh,” we suggested that rbsD contributes to ribose uptake, based on the original characterization of an rbsD mutant in E. coli (Oh et al., 1999). However, subsequent biochemical studies have revealed a more specific function. E. coli rbsD encodes a ribose mutarotase that catalyzes the conversion between the pyranose and furanose forms of D-ribose immediately after cytoplasmic uptake by the ribose transporter RbsABC (Kim et al., 2003; Ryu et al., 2004). While ribose primarily exists as a pyranose in solution, the furanose is the preferred substrate in the ensuing phosphorylation by the ribokinase RbsK (Sigrell et al., 1998). Thus, the intracellular level of the furanose as a substrate for RbsK may be the growth-limiting factor in rbsD-deficient P. aeruginosa.

Irrespective of these biochemical details, however, our main conclusions drawn in the original article remain the same: Adenosine is a relevant nitrogen but not carbon source in the ecology of P. aeruginosa. As a carbon source, adenosine does not constrain cheating in native P. aeruginosa but rather promotes non-social adaptation during long-term cultivation.

Conflict of Interest Statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

References

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Keywords: quorum sensing, cooperation, cheating, public good, private good, evolutionary stability, Pseudomonas aeruginosa, nucleoside hydrolase

Citation: Schuster M, Sexton DJ and Hense BA (2017) Corrigendum: Why Quorum Sensing Controls Private Goods. Front. Microbiol. 8:1420. doi: 10.3389/fmicb.2017.01420

Received: 13 June 2017; Accepted: 13 July 2017;
Published: 24 July 2017.

Edited and reviewed by: Wolfgang R. Streit, University of Hamburg, Germany

Copyright © 2017 Schuster, Sexton and Hense. 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.

*Correspondence: Martin Schuster, martin.schuster@oregonstate.edu

Deceased.