You can manage bookmarks using lists, please log in to your user account for this.
Media type:
E-Article
Title:
Rediscovering the genus Lyticum, multiflagellated symbionts of the order Rickettsiales
Contributor:
Boscaro, Vittorio;
Schrallhammer, Martina;
Benken, Konstantin A.;
Krenek, Sascha;
Szokoli, Franziska;
Berendonk, Thomas U.;
Schweikert, Michael;
Verni, Franco;
Sabaneyeva, Elena V.;
Petroni, Giulio
imprint:
Springer Science and Business Media LLC, 2013
Published in:Scientific Reports
Language:
English
DOI:
10.1038/srep03305
ISSN:
2045-2322
Origination:
Footnote:
Description:
<jats:title>Abstract</jats:title><jats:p>Among the bacterial symbionts harbored by the model organism <jats:italic>Paramecium</jats:italic>, many still lack a recent investigation that includes a molecular characterization. The genus <jats:italic>Lyticum</jats:italic> consists of two species of large-sized bacteria displaying numerous flagella, despite their inability to move inside their hosts' cytoplasm. We present a multidisciplinary redescription of both species, using the deposited type strains as well as newly collected material. On the basis of 16S rRNA gene sequences, we assigned <jats:italic>Lyticum</jats:italic> to the order <jats:italic>Rickettsiales</jats:italic>, that is intensely studied because of its pathogenic representatives and its position as the extant group most closely related to the mitochondrial ancestor. We provide conclusive proofs that at least some <jats:italic>Rickettsiales</jats:italic> possess actual flagella, a feature that has been recently predicted from genomic data but never confirmed. We give support to the hypothesis that the mitochondrial ancestor could have been flagellated and provide the basis for further studies on these ciliate endosymbionts.</jats:p>