A microbial eukaryote with a unique combination of purple bacteria and green algae as endosymbionts.

Science Advances
Sergio A Muñoz-GómezSebastian Hess

Abstract

Oxygenic photosynthesizers (cyanobacteria and eukaryotic algae) have repeatedly become endosymbionts throughout evolution. In contrast, anoxygenic photosynthesizers (e.g., purple bacteria) are exceedingly rare as intracellular symbionts. Here, we report on the morphology, ultrastructure, lifestyle, and metagenome of the only "purple-green" eukaryote known. The ciliate Pseudoblepharisma tenue harbors green algae and hundreds of genetically reduced purple bacteria. The latter represent a new candidate species of the Chromatiaceae that lost known genes for sulfur dissimilation. The tripartite consortium is physiologically complex because of the versatile energy metabolism of each partner but appears to be ecologically specialized as it prefers hypoxic sediments. The emergent niche of this complex symbiosis is predicted to be a partial overlap of each partners' niches and may be largely defined by anoxygenic photosynthesis and possibly phagotrophy. This purple-green ciliate thus represents an extraordinary example of how symbiosis merges disparate physiologies and allows emergent consortia to create novel ecological niches.

References

Jan 1, 1995·International Journal of Systematic Bacteriology·R G Murray, E Stackebrandt
Apr 22, 2004·Biochimica Et Biophysica Acta·Robert S Pitcher, Nicholas J Watmough
Jan 22, 2005·Nucleic Acids Research·Kazutaka KatohTakashi Miyata
Feb 17, 2005·BMC Bioinformatics·Guy St C Slater, Ewan Birney
Feb 20, 2007·Frontiers in Zoology·Rainer SonnenbergDiethard Tautz
Nov 29, 2007·The ISME Journal·Maayke StompHans C P Matthijs
Sep 23, 2008·Environmental Microbiology·Bland J Finlay, Genoveva F Esteban
Jun 10, 2009·Bioinformatics·Salvador Capella-GutiérrezToni Gabaldón
Feb 4, 2010·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Eva C M Nowack, Michael Melkonian
Mar 10, 2010·BMC Bioinformatics·Doug HyattLoren J Hauser
May 4, 2010·Nucleic Acids Research·Federico AbascalMaximilian J Telford
Oct 26, 2010·Protist·Genoveva F EstebanBland J Finlay
Apr 27, 2011·The Journal of Eukaryotic Microbiology·Matthew D Johnson
Nov 9, 2011·Nature Reviews. Microbiology·John P McCutcheon, Nancy A Moran
Mar 28, 2012·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Hirofumi ShounTakayoshi Wakagi
Apr 18, 2012·Journal of Computational Biology : a Journal of Computational Molecular Cell Biology·Anton BankevichPavel A Pevzner
Jun 8, 2012·Standards in Genomic Sciences·Thomas WeissgerberChristiane Dahl
Jun 13, 2012·Microbiology and Molecular Biology Reviews : MMBR·Simon K DavyVirginia M Weis
Jun 13, 2012·Microbiology and Molecular Biology Reviews : MMBR·Miklós MüllerWilliam F Martin
Jun 30, 2012·Nature Methods·Johannes SchindelinAlbert Cardona
Aug 21, 2012·Biochimica Et Biophysica Acta·Ariane AtteiaWilliam F Martin
Nov 30, 2012·Nucleic Acids Research·Christian QuastFrank Oliver Glöckner
Jun 5, 2013·Frontiers in Plant Science·Claudia CatalanottiArthur R Grossman
Nov 6, 2014·Molecular Biology and Evolution·Lam-Tung NguyenBui Quang Minh
Nov 18, 2014·Nature Methods·Benjamin BuchfinkDaniel H Huson
Sep 2, 2015·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Courtney W StairsAndrew J Roger
Nov 21, 2015·Journal of Molecular Biology·Minoru KanehisaKanae Morishima
Jun 28, 2016·Nucleic Acids Research·Tatiana TatusovaJames Ostell
May 10, 2017·Nature Methods·Subha KalyaanamoorthyLars S Jermiin
Nov 7, 2017·Bioinformatics·Yasuhiro TanizawaYasukazu Nakamura
Nov 8, 2017·Current Biology : CB·Andrew J RogerRyoma Kamikawa
Mar 25, 1993·Nature·Tom Fenchel, Catherine Bernard

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Citations

Sep 28, 2021·Bioinformatics·Michał KarlickiAnna Karnkowska

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