Bacterial and archaeal symbioses with protists

Anaerobic endosymbiont generates energy for ciliate host by denitrification

(2021) Jon S. Graf et al.   NATURE

A molecular timescale for eukaryote evolution with implications for the origin of red algal-derived plastids

(2021) Jürgen F. H. Strassert et al.   Nature Communications

Comprehensive comparative genomics reveals over 50 phyla of free-living and pathogenic bacteria are associated with diverse members of the amoebozoa

(2021) Yonas I. Tekle et al.   Scientific Reports

Highly Reduced Genomes of Protist Endosymbionts Show Evolutionary Convergence

(2020) Emma E. George et al.   CURRENT BIOLOGY

Symbiont replacements reset the co-evolutionary relationship between insects and their heritable bacteria

(2020) Meng Mao et al.   ISME Journal

Insights into the origin of metazoan multicellularity from predatory unicellular relatives of animals

(2020) Denis V. Tikhonenkov et al.   BMC BIOLOGY

Parallel reductive genome evolution in Desulfovibrio ectosymbionts independently acquired by Trichonympha protists in the termite gut

(2020) Mariko Takeuchi et al.   ISME Journal

Increased Mutation Rate Is Linked to Genome Reduction in Prokaryotes

(2020) Thomas Bourguignon et al.   CURRENT BIOLOGY

Morphology, ultrastructure, genomics, and phylogeny of Euplotes vanleeuwenhoeki sp. nov. and its ultra-reduced endosymbiont “Candidatus Pinguicoccus supinus” sp. nov.

(2020) Valentina Serra et al.   Scientific Reports

Deianiraea, an extracellular bacterium associated with the ciliate Paramecium, suggests an alternative scenario for the evolution of Rickettsiales

(2019) Michele Castelli et al.   ISME Journal

Symbiont-Mediated Defense against Legionella pneumophila in Amoebae

(2019) Lena König et al.   mBio

An updated phylogeny of the Alphaproteobacteria reveals that the parasitic Rickettsiales and Holosporales have independent origins

(2019) Sergio A Muñoz-Gómez et al.   eLife

Ectosymbiotic bacteria at the origin of magnetoreception in a marine protist

(2019) Caroline L. Monteil et al.   Nature Microbiology

The Life of an Insect Endosymbiont from the Cradle to the Grave

(2019) John P. McCutcheon et al.   CURRENT BIOLOGY

Single-cell genomics unveiled a cryptic cyanobacterial lineage with a worldwide distribution hidden by a dinoflagellate host

(2019) Takuro Nakayama et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Sulfur-Oxidizing Symbionts without Canonical Genes for Autotrophic CO2 Fixation

(2019) Brandon K. B. Seah et al.   mBio

Chromulinavorax destructans, a pathogen of microzooplankton that provides a window into the enigmatic candidate phylum Dependentiae

(2019) Christoph M. Deeg et al.   PLoS Pathogens

Symbiotic magnetic motility

(2019) Virginia Edgcomb   Nature Microbiology

Diversity, Genomics, and Distribution of Phytoplankton-Cyanobacterium Single-Cell Symbiotic Associations

(2019) Rachel A. Foster et al.   Annual Review of Microbiology

Progress towards the Tree of Eukaryotes

(2019) Patrick J. Keeling et al.   CURRENT BIOLOGY

A kleptoplastidic dinoflagellate and the tipping point between transient and fully integrated plastid endosymbiosis

(2019) Elisabeth Hehenberger et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Revealing the metabolic capacity of Streblomastix strix and its bacterial symbionts using single-cell metagenomics

(2019) Sebastian C. Treitli et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Peptidoglycan Production by an Insect-Bacterial Mosaic

(2019) DeAnna C. Bublitz et al.   CELL

The fate of obligate endosymbionts: reduction, integration, or extinction

(2019) Filip Husnik et al.   CURRENT OPINION IN GENETICS & DEVELOPMENT

The planktonic protist interactome: where do we stand after a century of research?

(2019) Marit F. Markussen Bjorbækmo et al.   ISME Journal

Metabolic quirks and the colourful history of the Euglena gracilis secondary plastid

(2019) Anna M. G. Novák Vanclová et al.   NEW PHYTOLOGIST

The core microbiome of sessile ciliate Stentor coeruleus is not shaped by the environment

(2019) Olivia Lanzoni et al.   Scientific Reports

The New Tree of Eukaryotes

(2019) Fabien Burki et al.   TRENDS IN ECOLOGY & EVOLUTION

Genomics-Informed Insights into Endosymbiotic Organelle Evolution in Photosynthetic Eukaryotes

(2018) Eva C.M. Nowack et al.   Annual Review of Plant Biology

The genome of an endosymbiotic methanogen is very similar to those of its free-living relatives

(2018) R.A. Beinart et al.   ENVIRONMENTAL MICROBIOLOGY

The Genome Sequence of “Candidatus Fokinia solitaria”: Insights on Reductive Evolution in Rickettsiales

(2018) Anna M Floriano et al.   Genome Biology and Evolution

More than the “Killer Trait”: Infection with the Bacterial Endosymbiont Caedibacter taeniospiralis Causes Transcriptomic Modulation in Paramecium Host

(2018) Katrin Grosser et al.   Genome Biology and Evolution

A gene transfer event suggests a long-term partnership between eustigmatophyte algae and a novel lineage of endosymbiotic bacteria

(2018) Tatiana Yurchenko et al.   ISME Journal

Genomes of two archaeal endosymbionts show convergent adaptations to an intracellular lifestyle

(2018) Anders E. Lind et al.   ISME Journal

Ultrastructural observations on prokaryotic associates of benthic foraminifera: Food, mutualistic symbionts, or parasites?

(2018) Joan M. Bernhard et al.   MARINE MICROPALEONTOLOGY

Farming, slaving and enslavement: histories of endosymbioses during kinetoplastid evolution

(2018) Jane Harmer et al.   PARASITOLOGY

Farming the mitochondrial ancestor as a model of endosymbiotic establishment by natural selection

(2018) István Zachar et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Life Cycle, Ultrastructure, and Phylogeny of New Diplonemids and Their Endosymbiotic Bacteria

(2018) Daria Tashyreva et al.   mBio

Environmental Metagenomic Assemblies Reveal Seven New Highly Divergent Chlamydial Lineages and Hallmarks of a Conserved Intracellular Lifestyle

(2018) Trestan Pillonel et al.   Frontiers in Microbiology

A Novel Eukaryotic Denitrification Pathway in Foraminifera

(2018) Christian Woehle et al.   CURRENT BIOLOGY

Periodic and coordinated gene expression between a diazotroph and its diatom host

(2018) Matthew J. Harke et al.   ISME Journal

Detecting Associations Between Ciliated Protists and Prokaryotes with Culture-Independent Single-Cell Microbiomics: a Proof-of-Concept Study

(2018) Alessia Rossi et al.   MICROBIAL ECOLOGY

Symbiont location, host fitness, and possible coadaptation in a symbiosis between social amoebae and bacteria

(2018) Longfei Shu et al.   eLife

Endosymbiosis: The feeling is not mutual

(2017) Patrick J. Keeling et al.   JOURNAL OF THEORETICAL BIOLOGY

Protochlamydia phocaeensis sp. nov., a new Chlamydiales species with host dependent replication cycle

(2017) Jacques Y. Bou Khalil et al.   MICROBES AND INFECTION

Functional horizontal gene transfer from bacteria to eukaryotes

(2017) Filip Husnik et al.   NATURE REVIEWS MICROBIOLOGY

Description of Hyalodiscus flabellus sp. nov. (Vampyrellida, Rhizaria) and Identification of its Bacterial Endosymbiont, “ Candidatus Megaira polyxenophila” ( Rickettsiales , Alphaproteobacteria )

(2017) Sebastian Hess   PROTIST

Identification of Pelomyxa palustris Endosymbionts

(2017) Gabriel Gutiérrez et al.   PROTIST

Symbiont Acquisition and Replacement as a Source of Ecological Innovation

(2017) Sailendharan Sudakaran et al.   TRENDS IN MICROBIOLOGY

Parallel genome reduction in symbionts descended from closely related free-living bacteria

(2017) Vittorio Boscaro et al.   Nature Ecology & Evolution

Genomic divergence within non-photosynthetic cyanobacterial endosymbionts in rhopalodiacean diatoms

(2017) Takuro Nakayama et al.   Scientific Reports

The Plant Microbiota: Systems-Level Insights and Perspectives

(2016) Daniel B. Müller et al.   Annual Review of Genetics

Genome Evolution and Nitrogen Fixation in Bacterial Ectosymbionts of a Protist Inhabiting Wood-Feeding Cockroaches

(2016) Vera Tai et al.   APPLIED AND ENVIRONMENTAL MICROBIOLOGY

Development of a toolbox to dissect host-endosymbiont interactions and protein trafficking in the trypanosomatid Angomonas deanei

(2016) Jorge Morales et al.   BMC EVOLUTIONARY BIOLOGY

From microbiology to cell biology: when an intracellular bacterium becomes part of its host cell

(2016) John P McCutcheon   CURRENT OPINION IN CELL BIOLOGY

‘Candidatus Adiutrix intracellularis’, an endosymbiont of termite gut flagellates, is the first representative of a deep-branching clade of Deltaproteobacteria and a putative homoacetogen

(2016) Wakako Ikeda-Ohtsubo et al.   ENVIRONMENTAL MICROBIOLOGY

Comparison of Intracellular “Ca.Endomicrobium Trichonymphae” Genomovars Illuminates the Requirement and Decay of Defense Systems against Foreign DNA

(2016) Kazuki Izawa et al.   Genome Biology and Evolution

Genome of ‘Ca. Desulfovibrio trichonymphae’, an H2-oxidizing bacterium in a tripartite symbiotic system within a protist cell in the termite gut

(2016) Hirokazu Kuwahara et al.   ISME Journal

Complete ecological isolation and cryptic diversity in Polynucleobacter bacteria not resolved by 16S rRNA gene sequences

(2016) Martin W Hahn et al.   ISME Journal

Functional Relationship between a Dinoflagellate Host and Its Diatom Endosymbiont

(2016) Elisabeth Hehenberger et al.   MOLECULAR BIOLOGY AND EVOLUTION

Environmental Breviatea harbour mutualistic Arcobacter epibionts

(2016) Emmo Hamann et al.   NATURE

Gene transfers from diverse bacteria compensate for reductive genome evolution in the chromatophore ofPaulinella chromatophora

(2016) Eva C. M. Nowack et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Repeated replacement of an intrabacterial symbiont in the tripartite nested mealybug symbiosis

(2016) Filip Husnik et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Genome analysis of ‘CandidatusAncillula trichonymphae’, first representative of a deep-branching clade ofBifidobacteriales, strengthens evidence for convergent evolution in flagellate endosymbionts

(2016) Jürgen F. H. Strassert et al.   Environmental Microbiology Reports

Novel Trypanosomatid-Bacterium Association: Evolution of Endosymbiosis in Action

(2016) Alexei Y. Kostygov et al.   mBio

Defying Muller’s Ratchet: Ancient Heritable Endobacteria Escape Extinction through Retention of Recombination and Genome Plasticity

(2016) Mizue Naito et al.   mBio

Fitness Impact of Obligate Intranuclear Bacterial Symbionts Depends on Host Growth Phase

(2016) Chiara Bella et al.   Frontiers in Microbiology

“Candidatus Finniella” (Rickettsiales, Alphaproteobacteria), Novel Endosymbionts of Viridiraptorid Amoeboflagellates (Cercozoa, Rhizaria)

(2015) Sebastian Hess et al.   APPLIED AND ENVIRONMENTAL MICROBIOLOGY

Babela massiliensis, a representative of a widespread bacterial phylum with unusual adaptations to parasitism in amoebae

(2015) Isabelle Pagnier et al.   Biology Direct

Acetogenesis from H2plus CO2and nitrogen fixation by an endosymbiotic spirochete of a termite-gut cellulolytic protist

(2015) Moriya Ohkuma et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Endosymbiotic gene transfer from prokaryotic pangenomes: Inherited chimerism in eukaryotes

(2015) Chuan Ku et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Heritable symbiosis: The advantages and perils of an evolutionary rabbit hole

(2015) Gordon M. Bennett et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Mosaic nature of the mitochondrial proteome: Implications for the origin and evolution of mitochondria

(2015) Michael W. Gray   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Eukaryogenesis, how special really?

(2015) Austin Booth et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Burkholderiabacteria infectiously induce the proto-farming symbiosis ofDictyosteliumamoebae and food bacteria

(2015) Susanne DiSalvo et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Intranuclear bacteria: inside the cellular control center of eukaryotes

(2015) Frederik Schulz et al.   TRENDS IN CELL BIOLOGY

Shedding light on microbial dark matter: a TM6 bacterium as natural endosymbiont of a free-living amoeba

(2015) Vincent Delafont et al.   Environmental Microbiology Reports

Endosymbiosis in trypanosomatid protozoa: the bacterium division is controlled during the host cell cycle

(2015) Carolina M. C. Catta-Preta et al.   Frontiers in Microbiology

Twenty years of research into Chlamydia-like organisms: a revolution in our understanding of the biology and pathogenicity of members of the phylum Chlamydiae

(2015) Alyce Taylor-Brown et al.   Pathogens and Disease

The Tiniest Tiny Genomes

(2014) Nancy A. Moran et al.   Annual Review of Microbiology

The Role of Host Phylogeny Varies in Shaping Microbial Diversity in the Hindguts of Lower Termites

(2014) Vera Tai et al.   APPLIED AND ENVIRONMENTAL MICROBIOLOGY

Endosymbiosis: Protein Targeting Further Erodes the Organelle/Symbiont Distinction

(2014) John P. McCutcheon et al.   CURRENT BIOLOGY

Aphid gene of bacterial origin encodes a protein transported to an obligate endosymbiont

(2014) Atsushi Nakabachi et al.   CURRENT BIOLOGY

Density- and trait-mediated effects of a parasite and a predator in a tri-trophic food web

(2014) Aabir Banerji et al.   JOURNAL OF ANIMAL ECOLOGY

Symbiotic digestion of lignocellulose in termite guts

(2014) Andreas Brune   NATURE REVIEWS MICROBIOLOGY

Flagellar Movement in Two Bacteria of the Family Rickettsiaceae: A Re-Evaluation of Motility in an Evolutionary Perspective

(2014) Claudia Vannini et al.   PLoS One

Amoebal Endosymbiont Neochlamydia Genome Sequence Illuminates the Bacterial Role in the Defense of the Host Amoebae against Legionella pneumophila

(2014) Kasumi Ishida et al.   PLoS One

Complete genome of a nonphotosynthetic cyanobacterium in a diatom reveals recent adaptations to an intracellular lifestyle

(2014) T. Nakayama et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Ménage-à-trois: The Amoeba Nuclearia sp. from Lake Zurich with its Ecto- and Endosymbiotic Bacteria

(2014) Sebastian Dirren et al.   PROTIST

The giant ciliate Zoothamnium niveum and its thiotrophic epibiont Candidatus Thiobios zoothamnicoli: a model system to study interspecies cooperation

(2014) Monika Bright et al.   Frontiers in Microbiology

The symbiont side of symbiosis: do microbes really benefit?

(2014) Justine R. Garcia et al.   Frontiers in Microbiology

The Number, Speed, and Impact of Plastid Endosymbioses in Eukaryotic Evolution

(2013) Patrick J. Keeling   Annual Review of Plant Biology

Intranuclear verrucomicrobial symbionts and evidence of lateral gene transfer to the host protist in the termite gut

(2013) Tomoyuki Sato et al.   ISME Journal

Correlated SEM, FIB-SEM, TEM, and NanoSIMS Imaging of Microbes from the Hindgut of a Lower Termite: Methods for In Situ Functional and Ecological Studies of Uncultivable Microbes

(2013) Kevin J. Carpenter et al.   MICROSCOPY AND MICROANALYSIS

Animals in a bacterial world, a new imperative for the life sciences

(2013) Margaret McFall-Ngai et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Genomic deletions disrupt nitrogen metabolism pathways of a cyanobacterial diatom symbiont

(2013) Jason A. Hilton et al.   Nature Communications

Betaproteobacterial symbionts of the ciliate Euplotes: origin and tangled evolutionary path of an obligate microbial association

(2012) Claudia Vannini et al.   ENVIRONMENTAL MICROBIOLOGY

Environmental Chlamydiae Alter the Growth Speed and Motility of Host Acanthamoebae

(2012) Miho Okude et al.   MICROBES AND ENVIRONMENTS

Trafficking of protein into the recently established photosynthetic organelles of Paulinella chromatophora

(2012) E. C. M. Nowack et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Toward the functional analysis of uncultivable, symbiotic microorganisms in the termite gut

(2011) Yuichi Hongoh   CELLULAR AND MOLECULAR LIFE SCIENCES

REVERSE EVOLUTION: SELECTION AGAINST COSTLY RESISTANCE IN DISEASE-FREE MICROCOSM POPULATIONS OF PARAMECIUM CAUDATUM

(2011) Alison B. Duncan et al.   EVOLUTION

Denitrification likely catalyzed by endobionts in an allogromiid foraminifer

(2011) Joan M Bernhard et al.   ISME Journal

Primitive agriculture in a social amoeba

(2011) Debra A. Brock et al.   NATURE

The Jekyll-and-Hyde chemistry of Phaeobacter gallaeciensis

(2011) Mohammad R. Seyedsayamdost et al.   Nature Chemistry

Extreme genome reduction in symbiotic bacteria

(2011) John P. McCutcheon et al.   NATURE REVIEWS MICROBIOLOGY

Structured Multiple Endosymbiosis of Bacteria and Archaea in a Ciliate from Marine Sulfidic Sediments: A Survival Mechanism in Low Oxygen, Sulfidic Sediments?

(2011) Virginia P. Edgcomb et al.   Frontiers in Microbiology

Putative N2-fixing heterotrophic bacteria associated with dinoflagellate–Cyanobacteria consortia in the low-nitrogen Indian Ocean

(2010) H Farnelid et al.   AQUATIC MICROBIAL ECOLOGY

Mobile genetic element proliferation and gene inactivation impact over the genome structure and metabolic capabilities of Sodalis glossinidius, the secondary endosymbiont of tsetse flies

(2010) Eugeni Belda et al.   BMC GENOMICS

Parasite-mediated protection against osmotic stress for Paramecium caudatum infected by Holospora undulata  is host genotype specific

(2010) Alison B. Duncan et al.   FEMS MICROBIOLOGY ECOLOGY

Identity of epibiotic bacteria on symbiontid euglenozoans in O2-depleted marine sediments: evidence for symbiont and host co-evolution

(2010) V P Edgcomb et al.   ISME Journal

Metabolic streamlining in an open-ocean nitrogen-fixing cyanobacterium

(2010) H. James Tripp et al.   NATURE

Cyanobacterial Endosymbionts in the Benthic Dinoflagellate Sinophysis canaliculata (Dinophysiales, Dinophyceae)

(2010) Laura Escalera et al.   PROTIST

Facultative Symbionts in Aphids and the Horizontal Transfer of Ecologically Important Traits

(2009) Kerry M. Oliver et al.   Annual Review of Entomology

The Genome of the Amoeba Symbiont "Candidatus Amoebophilus asiaticus" Reveals Common Mechanisms for Host Cell Interaction among Amoeba-Associated Bacteria

(2009) S. Schmitz-Esser et al.   JOURNAL OF BACTERIOLOGY

Photolysis of iron-siderophore chelates promotes bacterial-algal mutualism

(2009) S. A. Amin et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Genomics and Evolution of Heritable Bacterial Symbionts

(2008) Nancy A. Moran et al.   Annual Review of Genetics

Chlamydiae as Symbionts in Eukaryotes

(2008) Matthias Horn   Annual Review of Microbiology

Identification of Endosymbiotic Methanogen and Ectosymbiotic Spirochetes of Gut Protists of the Termite Coptotermes formosanus

(2008) Jun-Ichi Inoue et al.   MICROBES AND ENVIRONMENTS

Symbiotic diversity in marine animals: the art of harnessing chemosynthesis

(2008) Nicole Dubilier et al.   NATURE REVIEWS MICROBIOLOGY

Serial Replacement of Diatom Endosymbionts in Two Freshwater Dinoflagellates, Peridiniopsis spp. (Peridiniales, Dinophyceae)

(2008) Yoshihito Takano et al.   PHYCOLOGIA

Epiphytic bacteria on the Antarctic ice diatom Amphiprora kufferathii Manguin cleave hydrogen peroxide produced during algal photosynthesis

(2008) M. Hünken et al.   PLANT BIOLOGY

Complete genome of the uncultured Termite Group 1 bacteria in a single host protist cell

(2008) Y. Hongoh et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Genome of an Endosymbiont Coupling N2 Fixation to Cellulolysis Within Protist Cells in Termite Gut

(2008) Y. Hongoh et al.   SCIENCE

Symbioses of flagellates and prokaryotes in the gut of lower termites

(2008) Moriya Ohkuma   TRENDS IN MICROBIOLOGY