Acidithiobacillus ferrooxidans and its potential application

Abstract

The widely distributed Acidithiobacillus ferrooxidans (A. ferrooxidans) lives in extremely acidic conditions by fixing CO and nitrogen, and by obtaining energy from Fe oxidation with either downhill or uphill electron transfer pathway and from reduced sulfur oxidation. A. ferrooxidans exists as different genomovars and its genome size is 2.89-4.18 Mb. The chemotactic movement of A. ferrooxidans is regulated by quorum sensing. A. ferrooxidans shows weak magnetotaxis due to formation of 15-70 nm magnetite magnetosomes with surface functional groups. The room- and low-temperature magnetic features of A. ferrooxidans are different from other magnetotactic bacteria. A. ferrooxidans has potential for removing sulfur from solids and gases, metals recycling from metal-bearing ores, electric wastes and sludge, biochemical production synthesizing, and metal workpiece machining.

Microbe‐Mediated Extracellular and Intracellular Mineralization: Environmental, Industrial, and Biotechnological Applications

“…[ 39–42 ] These bacteria have been observed in a wide range of ecosystems, ranging from marine sediments, lagoons, ponds, soils to some extreme environments. [ 43–47 ] Other nonbacterial prokaryotes such as sulfur‐reducing, hyperthermophilic, heterotrophic archaea can also produce greigite. [ 48 ] The earliest reports of magnetotactic bacteria (MTB) in 1963 [ 49 ] and 1975 [ 50 ] pioneer the discovery of MTB with diverse morphology, including cocci, spirilla, vibrios, ovoid bacteria, rod‐shaped bacteria, and multicellular bacteria.…”

Complete genome sequence of Acidithiobacillus ferrooxidans YNTRS-40, a strain of the ferrous iron- and sulfur-oxidizing acidophile

“…Based on the COG analysis (Table 2), the functional genes related to defense mechanisms (V), cell wall/membrane/envelope biogenesis (M), amino acid transport and metabolism (E), inorganic ion transport and metabolism (P) and general function prediction only (R) were slightly more than the other genes. These revealed that this strain exhibited excellent environmental adaptability and has potential applications in ecological industry such as sulfur removal from gases, mental extraction from electronic waste [44]. Additionally, the genes associated with function unknown (S) indicated that strain YNTRS-40 might possess some new genes [45].…”

Complete Genome Sequence of Acidithiobacillus ferrooxidans YNTRS-40, a Strain of the Ferrous Iron- and Sulfur-Oxidizing Acidophile

“…Based on the COG analysis (Table 2), the functional genes related to defense mechanisms (V), cell wall/membrane/envelope biogenesis (M), amino acid transport and metabolism (E), inorganic ion transport and metabolism (P) and general function prediction only (R) were slightly more than the other genes. These revealed that this strain exhibited excellent environmental adaptability and has potential applications in the ecological industry, such as sulfur removal from gases, metal extraction from electronic waste [21]. Additionally, the genes associated with function unknown (S) indicated that strain YNTRS-40 might possess some new genes [50].…”

“…ferrooxidans has iron-and sulfur-oxidizing abilities and can grow in the environments with high concentrations of metal ions such as pyritic ore bodies, coal deposits and their acidified drainages [15][16][17][18][19][20]. Therefore, it has potential utilization in microbial electrosynthesis systems, eco-friendly bioleaching technology, biological desulfurization and machining of workpieces [21]. Until now, nine A. ferrooxidans strain genomes (ATCC 23270, ATCC 53993, Hel18, BY0502, CCM 4253, IO-2C, YQH-1, DLC-5, and RVS1) have been available in the public databases.…”