Keys to eukaryality: Planctomycetes and ancestral evolution of cellular complexity

Fuerst, John A. and Sagulenko, Evgeny (2012) Keys to eukaryality: Planctomycetes and ancestral evolution of cellular complexity. Frontiers in Microbiology, 3 MAY: 167.1-167.12. doi:10.3389/fmicb.2012.00167

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Author Fuerst, John A.
Sagulenko, Evgeny
Title Keys to eukaryality: Planctomycetes and ancestral evolution of cellular complexity
Journal name Frontiers in Microbiology   Check publisher's open access policy
ISSN 1664-302X
Publication date 2012-05
Sub-type Article (original research)
DOI 10.3389/fmicb.2012.00167
Open Access Status DOI
Volume 3
Issue MAY
Start page 167.1
End page 167.12
Total pages 12
Place of publication Lausanne, Switzerland
Publisher Frontiers Research Foundation
Collection year 2013
Language eng
Formatted abstract
Planctomycetes are known to display compartmentalization via internal membranes, thus resembling eukaryotes. Significantly, the planctomycete Gemmata obscuriglobus has not only a nuclear region surrounded by a double-membrane, but is also capable of protein uptake via endocytosis. In order to clearly analyze implications for homology of their characters with eukaryotes, a correct understanding of planctomycete structure is an essential starting point. Here we outline the major features of such structure necessary for assessing the case for or against homology with eukaryote cell complexity. We consider an evolutionary model for cell organization involving reductive evolution of Planctomycetes from a complex proto-eukaryote-like last universal common ancestor, and evaluate alternative models for origins of the unique planctomycete cell plan. Overall, the structural and molecular evidence is not consistent with convergent evolution of eukaryote-like features in a bacterium and favors a homologous relationship of Planctomycetes and eukaryotes.
Keyword Planctomycetes
Evolution
Compartmentalization
Cell complexity
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article # 167

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Chemistry and Molecular Biosciences
 
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Citation counts: TR Web of Science Citation Count  Cited 22 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 25 times in Scopus Article | Citations
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Created: Thu, 17 May 2012, 08:38:36 EST by Lucy O'Brien on behalf of School of Chemistry & Molecular Biosciences