Morphological and molecular diversity of the neglected genus Rhizomastix Alexeieff, 1911 (Amoebozoa: Archamoebae) with description of five new species

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F75010330%3A_____%2F16%3A00010922" target="_blank" >RIV/75010330:_____/16:00010922 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/16:10324070

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1111/jeu.12266/abstract;jsessionid=964BA54D8CFAD9CCB1D9E9516BB22E25.f02t02" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/jeu.12266/abstract;jsessionid=964BA54D8CFAD9CCB1D9E9516BB22E25.f02t02</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jeu.12266" target="_blank" >10.1111/jeu.12266</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Morphological and molecular diversity of the neglected genus Rhizomastix Alexeieff, 1911 (Amoebozoa: Archamoebae) with description of five new species

Popis výsledku v původním jazyce

The genus Rhizomastix is a poorly known group of amoeboid heterotrophic flagellates living as intestinal commensals of insects, amphibians or reptiles, and as inhabitants of organic freshwater sediments. Eleven Rhizomastix species have been described so far, but DNA sequences from only a single species have been published. Recently, phylogenetic analyses confirmed a previous hypothesis that the genus belongs to the Archamoebae; however, its exact position therein remains unclear. In this study we cultured nine strains of Rhizomastix, both endobiotic and free-living. According to their light-microscopic morphology and SSU rRNA and actin gene analyses, the strains represent five species, of which four are newly described here: R. bicoronata sp. nov., R. elongata sp. nov., R. vacuolata sp. nov. and R. varia sp. nov. In addition, R. tipulae sp. nov., living in the intestine of crane flies, is separated from the type species, R. gracilis. We also examined the ultrastructure of R. elongata sp. nov., which revealed that it is more complicated than the previously described R. libera. Our data show that either the endobiotic lifestyle of some Rhizomastix species has arisen independently from other endobiotic archamoebae, or the free-living members of this genus represent a secondary switch from the endobiotic lifestyle.

Název v anglickém jazyce

Morphological and molecular diversity of the neglected genus Rhizomastix Alexeieff, 1911 (Amoebozoa: Archamoebae) with description of five new species

Popis výsledku anglicky

The genus Rhizomastix is a poorly known group of amoeboid heterotrophic flagellates living as intestinal commensals of insects, amphibians or reptiles, and as inhabitants of organic freshwater sediments. Eleven Rhizomastix species have been described so far, but DNA sequences from only a single species have been published. Recently, phylogenetic analyses confirmed a previous hypothesis that the genus belongs to the Archamoebae; however, its exact position therein remains unclear. In this study we cultured nine strains of Rhizomastix, both endobiotic and free-living. According to their light-microscopic morphology and SSU rRNA and actin gene analyses, the strains represent five species, of which four are newly described here: R. bicoronata sp. nov., R. elongata sp. nov., R. vacuolata sp. nov. and R. varia sp. nov. In addition, R. tipulae sp. nov., living in the intestine of crane flies, is separated from the type species, R. gracilis. We also examined the ultrastructure of R. elongata sp. nov., which revealed that it is more complicated than the previously described R. libera. Our data show that either the endobiotic lifestyle of some Rhizomastix species has arisen independently from other endobiotic archamoebae, or the free-living members of this genus represent a secondary switch from the endobiotic lifestyle.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EE - Mikrobiologie, virologie

OECD FORD obor

—

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Eukaryotic Microbiology

ISSN

1066-5234

e-ISSN

—

Svazek periodika

63

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

181-197

Kód UT WoS článku

000372187300005

EID výsledku v databázi Scopus

—