Identification of Pelomyxa palustris Endosymbionts

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F17%3AA1801OCW" target="_blank" >RIV/61988987:17310/17:A1801OCW - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.protis.2017.06.001" target="_blank" >http://dx.doi.org/10.1016/j.protis.2017.06.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.protis.2017.06.001" target="_blank" >10.1016/j.protis.2017.06.001</a>

Result language

angličtina

Original language name

Identification of Pelomyxa palustris Endosymbionts

Original language description

Pelomyxa palustris is a giant anaerobic/microaerobic amoeba, characterized by a number of exceptional cytological and physiological features, among them the presumed absence of energy producing organelles and the presence of endosymbiotic bacteria. These endosymbionts have been previously distinguished as: a large rectangular-shaped Gram-variable rod with a central cleft; a slender Gram-negative rod; and a slender Gram-positive rod. Using DNA extracted from P. palustris cysts, we have obtained three SSU rRNA gene sequences. We have determined that these sequences are affiliated to three different prokaryotic genera: Methanosaeta (a methanogenic archaea), Syntrophorhabdus (a syntrophic Gram-negative bacteria) and Rhodococcus (an aerobic chemoorganotrophic Gram-positive bacteria). To our knowledge, it is the first time that Syntrophorhabdus has been described as an endosymbiont in association with a methanogen. Strikingly, no traces of Methanobacterium formicicum could be detected, despite this methanogen had allegedly been isolated from trophozoites of P. palustris. It seems that the host and the endosymbionts have established a multipartite syntrophic consortium resembling to some extent those found in sewage treatment plants. (C) 2017 Elsevier GmbH. All rights reserved.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10606 - Microbiology

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

PROTIST

ISSN

1434-4610

e-ISSN

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Volume of the periodical

168

Issue of the periodical within the volume

4

Country of publishing house

DE - GERMANY

Number of pages

17

Pages from-to

408-424

UT code for WoS article

000410031300003

EID of the result in the Scopus database

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