2015
Marine amoebae with cytoplasmic and perinuclear symbionts deeply branching in the Gammaproteobacteria
SCHULZ, Frederik, Tomáš TYML, Ilaria PIZZETTI, Iva DYKOVÁ, Stefano FAZI et. al.Základní údaje
Originální název
Marine amoebae with cytoplasmic and perinuclear symbionts deeply branching in the Gammaproteobacteria
Autoři
SCHULZ, Frederik (40 Rakousko), Tomáš TYML (203 Česká republika, domácí), Ilaria PIZZETTI (380 Itálie), Iva DYKOVÁ (203 Česká republika, garant, domácí), Stefano FAZI (380 Itálie), Martin KOSTKA (203 Česká republika) a Matthias HORN (40 Rakousko)
Vydání
Scientific Reports, LONDON, NATURE PUBLISHING GROUP, 2015, 2045-2322
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
40301 Veterinary science
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.228
Kód RIV
RIV/00216224:14310/15:00081664
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000360035600002
Klíčová slova anglicky
Microbial ecology; symbiosis
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 7. 3. 2018 14:12, Mgr. Lucie Jarošová, DiS.
Anotace
V originále
Amoebae play an important ecological role as predators in microbial communities. They also serve as niche for bacterial replication, harbor endosymbiotic bacteria and have contributed to the evolution of major human pathogens. Despite their high diversity, marine amoebae and their association with bacteria are poorly understood. Here we describe the isolation and characterization of two novel marine amoebae together with their bacterial endosymbionts, tentatively named 'Candidatus Occultobacter vannellae' and 'Candidatus Nucleophilum amoebae'. While one amoeba strain is related to Vannella, a genus common in marine habitats, the other represents a novel lineage in the Amoebozoa. The endosymbionts showed only low similarity to known bacteria (85-88% 16S rRNA sequence similarity) but together with other uncultured marine bacteria form a sister clade to the Coxiellaceae. Using fluorescence in situ hybridization and transmission electron microscopy, identity and intracellular location of both symbionts were confirmed; one was replicating in host-derived vacuoles, whereas the other was located in the perinuclear space of its amoeba host. This study sheds for the first time light on a so far neglected group of protists and their bacterial symbionts. The newly isolated strains represent easily maintainable model systems and pave the way for further studies on marine associations between amoebae and bacterial symbionts.
Návaznosti
GBP505/12/G112, projekt VaV |
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