“Candidatus Gortzia shahrazadis”, a novel endosymbiont of Paramecium multimicronucleatum and a revision of the biogeographical distribution of Holospora-like bacteria
Holospora spp. and Candidatus Gortzia infectiva, known as Holospora-like bacteria (HLB), are commonly found as nuclear endosymbionts of ciliates, especially the Paramecium genus. HLB are related by phylogenetic relationships, morphological features, and life cycles, which involve two alternating mor...
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doaj-b1d24f06e8c147af80e787103fd241352020-11-24T21:40:49ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2016-11-01710.3389/fmicb.2016.01704209423“Candidatus Gortzia shahrazadis”, a novel endosymbiont of Paramecium multimicronucleatum and a revision of the biogeographical distribution of Holospora-like bacteriaValentina Serra0Sergei Fokin1Sergei Fokin2Michele Castelli3Charan Kumar Basuri4Venkata Mahesh Nitla5Franco Verni6Bhagavatula Venkata Sandeep7Bhagavatula Venkata Sandeep8Chaganti Kalavathi9Giulio Petroni10University of PisaUniversity of PisaSt.Petersburg State UniversityUniversity of PisaAndhra UniversityAndhra UniversityUniversity of PisaAndhra UniversityAndhra UniversityAndhra UniversityUniversity of PisaHolospora spp. and Candidatus Gortzia infectiva, known as Holospora-like bacteria (HLB), are commonly found as nuclear endosymbionts of ciliates, especially the Paramecium genus. HLB are related by phylogenetic relationships, morphological features, and life cycles, which involve two alternating morphotypes: reproductive and infectious forms (RF, IF). In this paper we describe a novel species belonging to the Ca. Gortzia genus, detected in P. multimicronucleatum, a ciliate for which infection by an HLB has not been reported, discovered in India. This novel endosymbiont shows unusual and surprising features with respect to other HLB, such as large variations in IF morphology and the occasional ability to reproduce in the host cytoplasm. We propose the name of Candidatus Gortzia shahrazadis for this novel HLB . Moreover, we report two additional species of HLB from Indian Paramecium populations: Ca. Gortzia infectiva (from P. jenningsi), and H. obtusa (from P. caudatum); the latter is the first record of Holospora from a tropical country. Although tropical, we retrieved H. obtusa at an elevation of 706 m. corresponding to a moderate climate not unlike conditions where Holospora are normally found, suggesting the genus Holospora does exist in tropical countries, but restricted to higher elevations.http://journal.frontiersin.org/Journal/10.3389/fmicb.2016.01704/fullBacteriaBacterial InfectionsParameciumRickettsiaSymbiosisdistribution |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Valentina Serra Sergei Fokin Sergei Fokin Michele Castelli Charan Kumar Basuri Venkata Mahesh Nitla Franco Verni Bhagavatula Venkata Sandeep Bhagavatula Venkata Sandeep Chaganti Kalavathi Giulio Petroni |
spellingShingle |
Valentina Serra Sergei Fokin Sergei Fokin Michele Castelli Charan Kumar Basuri Venkata Mahesh Nitla Franco Verni Bhagavatula Venkata Sandeep Bhagavatula Venkata Sandeep Chaganti Kalavathi Giulio Petroni “Candidatus Gortzia shahrazadis”, a novel endosymbiont of Paramecium multimicronucleatum and a revision of the biogeographical distribution of Holospora-like bacteria Frontiers in Microbiology Bacteria Bacterial Infections Paramecium Rickettsia Symbiosis distribution |
author_facet |
Valentina Serra Sergei Fokin Sergei Fokin Michele Castelli Charan Kumar Basuri Venkata Mahesh Nitla Franco Verni Bhagavatula Venkata Sandeep Bhagavatula Venkata Sandeep Chaganti Kalavathi Giulio Petroni |
author_sort |
Valentina Serra |
title |
“Candidatus Gortzia shahrazadis”, a novel endosymbiont of Paramecium multimicronucleatum and a revision of the biogeographical distribution of Holospora-like bacteria |
title_short |
“Candidatus Gortzia shahrazadis”, a novel endosymbiont of Paramecium multimicronucleatum and a revision of the biogeographical distribution of Holospora-like bacteria |
title_full |
“Candidatus Gortzia shahrazadis”, a novel endosymbiont of Paramecium multimicronucleatum and a revision of the biogeographical distribution of Holospora-like bacteria |
title_fullStr |
“Candidatus Gortzia shahrazadis”, a novel endosymbiont of Paramecium multimicronucleatum and a revision of the biogeographical distribution of Holospora-like bacteria |
title_full_unstemmed |
“Candidatus Gortzia shahrazadis”, a novel endosymbiont of Paramecium multimicronucleatum and a revision of the biogeographical distribution of Holospora-like bacteria |
title_sort |
“candidatus gortzia shahrazadis”, a novel endosymbiont of paramecium multimicronucleatum and a revision of the biogeographical distribution of holospora-like bacteria |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Microbiology |
issn |
1664-302X |
publishDate |
2016-11-01 |
description |
Holospora spp. and Candidatus Gortzia infectiva, known as Holospora-like bacteria (HLB), are commonly found as nuclear endosymbionts of ciliates, especially the Paramecium genus. HLB are related by phylogenetic relationships, morphological features, and life cycles, which involve two alternating morphotypes: reproductive and infectious forms (RF, IF). In this paper we describe a novel species belonging to the Ca. Gortzia genus, detected in P. multimicronucleatum, a ciliate for which infection by an HLB has not been reported, discovered in India. This novel endosymbiont shows unusual and surprising features with respect to other HLB, such as large variations in IF morphology and the occasional ability to reproduce in the host cytoplasm. We propose the name of Candidatus Gortzia shahrazadis for this novel HLB . Moreover, we report two additional species of HLB from Indian Paramecium populations: Ca. Gortzia infectiva (from P. jenningsi), and H. obtusa (from P. caudatum); the latter is the first record of Holospora from a tropical country. Although tropical, we retrieved H. obtusa at an elevation of 706 m. corresponding to a moderate climate not unlike conditions where Holospora are normally found, suggesting the genus Holospora does exist in tropical countries, but restricted to higher elevations. |
topic |
Bacteria Bacterial Infections Paramecium Rickettsia Symbiosis distribution |
url |
http://journal.frontiersin.org/Journal/10.3389/fmicb.2016.01704/full |
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