title: Erratum to: Minimization of extracellular space as a driving force in prokaryote association and the origin of eukaryotes.
abstract: Following the publication of this article [1] it was noticed that, due to an error on the part of the publisher, the 2nd round of comments submitted by Reviewer 1, Dr. López-García, were unintentionally omitted during the peer review process. As a consequence of this error, the authors were unable to reply to Dr. López-García's comments and subsequently revise their manuscript accordingly (where appropriate).In fairness to both the authors and reviewer, Dr. López-García's (Reviewer 1) 2nd round of comments are now included below and Scott L Hooper and Helaine J Burstein (author) were given the opportunity to reply. Any consequent amendments to the research article [1] are outlined in the author's replies.
authors.affiliation: Department of Biological Sciences, Ohio University, Athens, OH, 45701, USA. hooper@ohio.edu.
authors.forename: Scott L
authors.initials: SL
authors.lastname: Hooper
authors.affiliation: Department of Biological Sciences, Ohio University, Athens, OH, 45701, USA. burstein@ohio.edu.
authors.forename: Helaine J
authors.initials: HJ
authors.lastname: Burstein