Salinarimonas chemoclinalis , an Aerobic Anoxygenic Phototroph Isolated from a Saline, Sulfate-Rich Meromictic Lake

A pink-pigmented, ovoid-rod-shaped, Gram-negative bacterial strain ML10 was previously isolated in a study of a meromictic lake in British Columbia, Canada. It produces bacteriochlorophyll , which is incorporated into the reaction center and light harvesting I complexes. This alongside no anaerobic...

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Bibliographic Details
Published in:Microorganisms (Basel) 2024-11, Vol.12 (11), p.2359
Main Authors: Messner, Katia, Kyndt, John A, Yurkov, Vladimir
Format: Article
Language:English
Subjects:
aerobic anoxygenic phototroph
Amino acids
Bacteria
Bacteriochlorophyll
bacteriochlorophyll a
Carbon
chemocline
Deoxyribonucleic acid
DNA
Fatty acids
Flagella
Genes
Genomes
Glycerol
Granule cells
Hybridization
Imipenem
Lactose
Lakes
Light
Maximum likelihood method
Meromictic lakes
Microscopy
Morphology
New species
Nucleotide sequence
Nucleotides
Penicillin G
Phylogenetics
Physiological tests
polyhydroxyalkanoate
Polyhydroxyalkanoates
Polyhydroxyalkanoic acid
RNA
rRNA 16S
Salinarimonadaceae
Salinarimonas
Sulfates
Sulfur
Tetracycline
Tetracyclines
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Summary:A pink-pigmented, ovoid-rod-shaped, Gram-negative bacterial strain ML10 was previously isolated in a study of a meromictic lake in British Columbia, Canada. It produces bacteriochlorophyll , which is incorporated into the reaction center and light harvesting I complexes. This alongside no anaerobic or photoautotrophic growth supports the designation of the strain as an aerobic anoxygenic phototroph. The cells produce wavy polar flagellum and accumulate clear, refractive granules, presumed to be polyhydroxyalkanoate. Sequence of the 16S rRNA gene identified close relatedness to (97.85%), (97.92%) and (94.61%). The DNA G + C content was 72.06 mol %. Differences in cellular fatty acids and some physiological tests compared to members, as well as average nucleotide identity and digital DNA-DNA hybridization, define the strain as a new species in . Therefore, we propose that ML10 (=NCIMB 15586 = DSM 118510 ) be classified as the type strain of a new species in the genus with the name sp. nov.
ISSN:2076-2607
2076-2607
DOI:10.3390/microorganisms12112359