Bacterial and archaeal symbioses with protists

F Husnik, D Tashyreva, V Boscaro, EE George, J Lukeš… - Current Biology, 2021 - cell.com
Most of the genetic, cellular, and biochemical diversity of life rests within single-celled
organisms—the prokaryotes (bacteria and archaea) and microbial eukaryotes (protists) …

[HTML][HTML] Orientia and Rickettsia: different flowers from the same garden

JJ Gillespie, J Salje - Current Opinion in Microbiology, 2023 - Elsevier
Recent discoveries of basal extracellular Rickettsiales have illuminated divergent
evolutionary paths to host dependency in later-evolving lineages. Family Rickettsiaceae …

The evolutionary origin of host association in the Rickettsiales

ME Schön, J Martijn, J Vosseberg, S Köstlbacher… - Nature …, 2022 - nature.com
The evolution of obligate host-association of bacterial symbionts and pathogens remains
poorly understood. The Rickettsiales are an alphaproteobacterial order of obligate …

Phylogenetic analyses with systematic taxon sampling show that mitochondria branch within Alphaproteobacteria

L Fan, D Wu, V Goremykin, J Xiao, Y Xu… - Nature ecology & …, 2020 - nature.com
Though it is well accepted that mitochondria originated from an alphaproteobacteria-like
ancestor, the phylogenetic relationship of the mitochondrial endosymbiont to extant …

Three-dimensional images reveal the impact of the endosymbiont Midichloria mitochondrii on the host mitochondria

Z Uzum, D Ershov, MJ Pavia, A Mallet… - Nature …, 2023 - nature.com
The hard tick, Ixodes ricinus, a main Lyme disease vector, harbors an intracellular bacterial
endosymbiont. Midichloria mitochondrii is maternally inherited and resides in the …

Genomic diversity across the Rickettsia and 'Candidatus Megaira' genera and proposal of genus status for the Torix group

HR Davison, J Pilgrim, N Wybouw, J Parker… - Nature …, 2022 - nature.com
Members of the bacterial genus Rickettsia were originally identified as causative agents of
vector-borne diseases in mammals. However, many Rickettsia species are arthropod …

Paramecium Genetics, Genomics, and Evolution

H Long, P Johri, JF Gout, J Ni, Y Hao… - Annual review of …, 2023 - annualreviews.org
The ciliate genus Paramecium served as one of the first model systems in microbial
eukaryotic genetics, contributing much to the early understanding of phenomena as diverse …

Integrative description of bisexual Paramacrobiotus experimentalis sp. nov.(Macrobiotidae) from republic of Madagascar (Africa) with microbiome analysis

Ł Kaczmarek, M Roszkowska, I Poprawa… - Molecular Phylogenetics …, 2020 - Elsevier
In a moss samples collected on Madagascar two populations of Paramacrobiotus
experimentalis sp. nov. were found. Paramacrobiotus experimentalis sp. nov. with the …

Evolution of Wolbachia mutualism and reproductive parasitism: insight from two novel strains that co-infect cat fleas

TP Driscoll, VI Verhoeve, C Brockway, DL Shrewsberry… - PeerJ, 2020 - peerj.com
Wolbachiae are obligate intracellular bacteria that infect arthropods and certain nematodes.
Usually maternally inherited, they may provision nutrients to (mutualism) or alter sexual …

The terrestrial isopod symbiont 'Candidatus Hepatincola porcellionum' is a potential nutrient scavenger related to Holosporales symbionts of protists

J Dittmer, M Bredon, B Moumen… - ISME …, 2023 - academic.oup.com
Abstract The order Holosporales (Alphaproteobacteria) encompasses obligate intracellular
bacterial symbionts of diverse Eukaryotes. These bacteria have highly streamlined genomes …