Origin of symbiotic gut spirochetes as key players in the nutrition of termites.

Environmental Microbiology
Gaku Tokuda

Abstract

Termites harbour symbiotic spirochetes in their hindguts, which have long been considered treponemes, although they represent separate lines of descent from known species of Treponema. 'Termite gut treponemes' have a mutualistic relationship with the host termites with their physiological properties including CO2 -reductive acetogenesis, from which the resulting acetate fulfils most of the respiratory requirement of the host. Song and co-workers showed that a spirochetal isolate (strain RmG30) from a Madeira cockroach represents the earliest branching lineage of extremely diverse termite (Treponema) cluster I and was a simple homolactic fermenter, suggesting that CO2 -reductive acetogenesis exhibited by some members of termite cluster I originated via horizontal gene transfer. Phylogenomic and 16S rRNA sequence-based phylogenetic analyses indicated a deeply-branched sister clade containing termite cluster I was distinguishable as a family-level lineage. In this context, a new family, 'Termitinemataceae' has been proposed for this clade. Strain RmG30 has been designated as the type strain of Breznakiella homolactica gen. nov. sp. nov. named after John A. Breznak, an American microbiologist distinguished in termite gut microbiolo...Continue Reading

References

Jan 1, 1984·Annual Review of Microbiology·C S Harwood, E Canale-Parola
Jan 29, 1999·Science·J R LeadbetterJ A Breznak
Nov 24, 1999·FEMS Microbiology Letters·M OhkumaT Kudo
Feb 24, 2001·Environmental Microbiology·T G LilburnJ A Breznak
Jun 30, 2001·Science·T G LilburnJ A Breznak
Jan 7, 2003·Applied and Environmental Microbiology·Satoko NodaToshiaki Kudo
May 1, 1983·Applied and Environmental Microbiology·D A Odelson, J A Breznak
Oct 1, 1986·Applied and Environmental Microbiology·J A Breznak, J M Switzer
May 3, 2008·International Journal of Systematic and Evolutionary Microbiology·Stefan DrögeHelmut König
Jan 31, 2012·ZooKeys·Michael S Engel
May 29, 2012·Applied and Environmental Microbiology·Nicholas R Ballor, Jared R Leadbetter
Feb 4, 2014·Nature Reviews. Microbiology·Andreas Brune
Mar 26, 2015·Nature Communications·Alexandra J Obregon-TitoCecil M Lewis
May 17, 2015·Proceedings of the National Academy of Sciences of the United States of America·Moriya OhkumaYuichi Hongoh
Jul 22, 2015·Annual Review of Microbiology·Andreas Brune, Carsten Dietrich
Nov 1, 2016·Nature Reviews. Microbiology·Justin D RadolfX Frank Yang
Nov 24, 2016·Current Alzheimer Research·A Jolivet-Gougeon, M Bonnaure-Mallet
Sep 7, 2018·Biotechnology for Biofuels·Fabian M SchwarzVolker Müller
Dec 7, 2018·Proceedings of the National Academy of Sciences of the United States of America·Gaku TokudaAndreas Brune
Mar 31, 2019·Insects·Rafael R da CostaMichael Poulsen
Apr 10, 2019·Proceedings. Biological Sciences·Dominic A EvangelistaSabrina Simon
Apr 19, 2020·Microbial Pathogenesis·Leila YousefiHossein Samadi Kafil
Apr 29, 2020·Nature Biotechnology·Donovan H ParksPhilip Hugenholtz

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