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Acidithiobacillus ferrianus sp. nov.: an ancestral extremely acidophilic and facultatively anaerobic chemolithoautotroph
- Source :
- Extremophiles
- Publication Year :
- 2020
- Publisher :
- Springer, 2020.
-
Abstract
- Strain MG, isolated from an acidic pond sediment on the island of Milos (Greece), is proposed as a novel species of ferrous iron- and sulfur-oxidizing Acidithiobacillus. Currently, four of the eight validated species of this genus oxidize ferrous iron, and strain MG shares many key characteristics with these four, including the capacities for catalyzing the oxidative dissolution of pyrite and for anaerobic growth via ferric iron respiration. Strain MG also grows aerobically on hydrogen and anaerobically on hydrogen coupled to ferric iron reduction. While the 16S rRNA genes of the iron-oxidizing Acidi-thiobacillus species (and strain MG) are located in a distinct phylogenetic clade and are closely related (98–99% 16S rRNA gene identity), genomic relatedness indexes (ANI/dDDH) revealed strong genomic divergence between strain MG and all sequenced type strains of the taxon, and placed MG as the first cultured representative of an ancestral phylotype of iron oxidizing acidithiobacilli. Strain MG is proposed as a novel species, Acidithiobacillus ferrianus sp. nov. The type strain is MGT (= DSM 107098T = JCM 33084T). Similar strains have been found as isolates or indicated by cloned 16S rRNA genes from several mineral sulfide mine sites.
- Subjects :
- DNA, Bacterial
Acidithiobacillus
engineering.material
Microbiology
Sulfur oxidation
Ferrous
03 medical and health sciences
Microbial ecology
RNA, Ribosomal, 16S
Botany
Hydrogen oxidation
Anaerobiosis
Phylogeny
030304 developmental biology
Ferrous iron oxidation
Phylotype
0303 health sciences
Original Paper
Phylogenetic tree
biology
Strain (chemistry)
030306 microbiology
Chemistry
Acidithiobacillus ferrianus
General Medicine
Hydrogen-Ion Concentration
16S ribosomal RNA
biology.organism_classification
Ferric iron reduction
engineering
Molecular Medicine
Pyrite
Oxidation-Reduction
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Extremophiles
- Accession number :
- edsair.doi.dedup.....ade5a6e7da9c13147cde0ee3ec1406c9