Overexpression of sulfide:quinone reductase (SQR) in Acidithiobacillus ferrooxidans enhances sulfur, pyrite, and pyrrhotite oxidation DOI Creative Commons
Heejung Jung, Yuta Inaba, Scott Banta

et al.

Applied and Environmental Microbiology, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

ABSTRACT Hydrogen sulfide is produced during the dissolution of some sulfidic minerals and microbial metabolism reduced sulfur compounds. The sulfide:quinone reductase (SQR) enzyme able to oxidize H 2 S, bioleaching cells Acidithiobacillus ferrooxidans have two SQR genes, only one which has been characterized. We cloned overexpressed genes in A. show that they both activity. Both AFE_0267 AFE_1792 are active under anaerobic conditions, but aerobic conditions. effect overexpression expression related on was investigated. improved cell growth oxidation, suggesting enhanced activity led a reduction S toxicity as well providing additional energy through oxidation. Additionally, impact oxidation pyrite pyrrhotite rate by engineered enhanced, and, furthermore, more than doubled. IMPORTANCE toxic intermediate, evolved . In addition detoxification, provides energy, sulfur. also may facilitate pyrometallurgical processing number critical materials including copper, nickel, platinum group metals.

Language: Английский

Multifunctional Role of the Biological Sulfur Cycle in Wastewater Treatment: Sulfur Oxidation, Sulfur Reduction, and Sulfur Disproportionation DOI Creative Commons
Xin Jin, Hao Wang, Qingxuan Wu

et al.

Desalination and Water Treatment, Journal Year: 2025, Volume and Issue: unknown, P. 101100 - 101100

Published: March 1, 2025

Language: Английский

Citations

0
A slow-release oxygen composite based on sulfur/CaO2 for sustained in-situ ammonia degradation form farmland drainage DOI
Deqing Mei, Jie Gong, Shuang Tong

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121094 - 121094

Published: Feb. 1, 2025

Language: Английский

Citations

0
New insights into the role of reaction–diffusion behavior in the bio-desulfurization: Relieving thiol-induced inhibition DOI
Zheng Chen,

Yunyi Chen,

Xuemi Hao

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160632 - 160632

Published: Feb. 1, 2025

Language: Английский

Citations

0
Overexpression of sulfide:quinone reductase (SQR) in Acidithiobacillus ferrooxidans enhances sulfur, pyrite, and pyrrhotite oxidation DOI Creative Commons
Heejung Jung, Yuta Inaba, Scott Banta

et al.

Applied and Environmental Microbiology, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

ABSTRACT Hydrogen sulfide is produced during the dissolution of some sulfidic minerals and microbial metabolism reduced sulfur compounds. The sulfide:quinone reductase (SQR) enzyme able to oxidize H 2 S, bioleaching cells Acidithiobacillus ferrooxidans have two SQR genes, only one which has been characterized. We cloned overexpressed genes in A. show that they both activity. Both AFE_0267 AFE_1792 are active under anaerobic conditions, but aerobic conditions. effect overexpression expression related on was investigated. improved cell growth oxidation, suggesting enhanced activity led a reduction S toxicity as well providing additional energy through oxidation. Additionally, impact oxidation pyrite pyrrhotite rate by engineered enhanced, and, furthermore, more than doubled. IMPORTANCE toxic intermediate, evolved . In addition detoxification, provides energy, sulfur. also may facilitate pyrometallurgical processing number critical materials including copper, nickel, platinum group metals.

Language: Английский

Citations

0