Cristian Jorquera Román
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Cristian Jorquera Román has a total of 2 co-authors. Here are the top co-authors by number of shared publications:
- Michael Schlömann
Institute of Biosciences, TU Bergakademie Freiberg, Freiberg, Germany
2 shared publications Gert Schmidt
Institute of Ceramics, Refractories and Composite Materials, TU Bergakademie Freiberg, Freiberg, Germany
1 shared publication
Latest Publications
- Open Access
- 16 September 2025
- Published by Springer Nature in Journal of Sustainable Metallurgy
- Vol. 11 (4) , 3791-3805
A Strain of Acidiphilium acidophilum that Oxidizes Arsenite Lithoautotrophically Under Extremely Acidic Conditions
Arsenic is a toxic metalloid. It is released to the environment normally as arsenite [As(III)], largely due to mining activities. As(III) is more toxic and in many acidic mining environments more mobile than arsenate [As(V)] and therefore the oxidation of As(III) to As(V) is fundamental to immobilize and treat arsenic waste. Here, we report on the isolation and the phenotypic as well as genomic characterization of a novel extremely acidophilic As(III)-oxidizing strain from Reiche Zeche, a former silver mining site (Freiberg, Germany). The isolated strain CJR1 was identified as Acidiphilium acidophilum by 99.7% 16S rRNA positions shared with the type strain A. acidophilum DSM 700 T and by the Type (Strain) Genome Server platform. The new isolate is able to grow lithoautotrophically with As(III) from pH 4.9 to 1.5 with an optimum around pH 2.0. However, growth and As(III) oxidation rates were improved by adding yeast extract. The genome of CJR1, with 5.17 Mbp, is considerably bigger than that of other Acidiphilium strains and comprises four circular plasmids. The genome suggests the presence of the Calvin–Benson–Bassham cycle of multiple arsenic resistance operons ( ars ) and of an arsenite oxidase ( aio ). Graphical Abstract The representation of the genome seen on the graphical abstract was made using GenoVi [1].
- 16 September 2025
- Published by Springer Nature in Journal of Sustainable Metallurgy
- Vol. 11 (4) , 3791-3805
Open AccessA Strain of Acidiphilium acidophilum that Oxidizes Arsenite Lithoautotrophically Under Extremely Acidic Conditions
Arsenic is a toxic metalloid. It is released to the environment normally as arsenite [As(III)], largely due to mining activities. As(III) is more toxic and in many acidic mining environments more mobile than arsenate [As(V)] and therefore the oxidation of As(III) to As(V) is fundamental to immobilize and treat arsenic waste. Here, we report on the isolation and the phenotypic as well as genomic characterization of a novel extremely acidophilic As(III)-oxidizing strain from Reiche Zeche, a former silver mining site (Freiberg, Germany). The isolated strain CJR1 was identified as Acidiphilium acidophilum by 99.7% 16S rRNA positions shared with the type strain A. acidophilum DSM 700 T and by the Type (Strain) Genome Server platform. The new isolate is able to grow lithoautotrophically with As(III) from pH 4.9 to 1.5 with an optimum around pH 2.0. However, growth and As(III) oxidation rates were improved by adding yeast extract. The genome of CJR1, with 5.17 Mbp, is considerably bigger than that of other Acidiphilium strains and comprises four circular plasmids. The genome suggests the presence of the Calvin–Benson–Bassham cycle of multiple arsenic resistance operons ( ars ) and of an arsenite oxidase ( aio ). Graphical Abstract The representation of the genome seen on the graphical abstract was made using GenoVi [1].