Chloroploca mongolica sp. nov.

Species Chloroploca mongolica

Etymology

[mon.go'li.ca.] N.L. fem. adj. mongolica, Mongolian

Nomenclatural type

NCBI Assembly: GCA_004762035.2 ^Ts

Description

A mesophilic filamentous anoxygenic phototrophic bacterium, designated M50-1, was isolated from a microbial mat of the Chukhyn Nur soda lake (northeastern Mongolia) with salinity of 5−14 g/L and pH 8.0−9.3. The organism is a strictly anaerobic phototrophic bacterium, which required sulfide for phototrophic growth. The cells formed short undulate trichomes surrounded by a thin sheath and containing gas vesicles. Motility of the trichomes was not observed. The cells contained chlorosomes. The antenna pigments were bacteriochlorophyll d and β- and γ-carotenes. Analysis of the genome assembled from the metagenome of the enrichment culture revealed all the enzymes of the 3-hydroxypropionate bi-cycle for autotrophic CO2 assimilation. The genome also contained the genes encoding a type IV sulfide:quinone oxidoreductase (sqrX). The organism had no nifHDBK genes, encoding the proteins of the nitrogenase complex responsible for dinitrogen fixation.

Classification

Bacteria » Chloroflexota » Chloroflexia » Chloroflexales » Chloroflexaceae » Chloroploca » Chloroploca mongolica

References

Effective publication: Bryantseva et al., 2021 [1]
Assigned taxonomically: Gorlenko et al., 2014 [2]

Registry URL

https://seqco.de/i:729