The Characterization of Salt Tolerance in Biomining Microorganisms and the Search for Novel Salt Tolerant Strains
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Cites background from "The Characterization of Salt Tolera..."
...The authors acknowledge the facilities and the scientific and technical assistance of the Australian Microscopy & Microanalysis Research Facility at the Centre for Microscopy, Characterisation & Analysis, the University of Western Australia, a facility funded by the University, State and Commonwealth Governments....
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...The presence of high levels of chloride in ores and process waters in regions such as Western Australia and Chile has led to the requirement to bioprospect iron- and sulfur oxidising microorganisms that are able to tolerate high levels of chloride stress as well as low pH (Zammit and Watkin, 2016; Quatrini et al., 2017)....
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...AC C EP TE D M AN U SC R IP T Recent progress in biohydrometallurgy and microbial characterisation Anna H Kaksonen1,2*, Naomi J Boxall1, Yosephine Gumulya1, Himel Nahreen Khaleque1, Christina Morris1, Tsing Bohu3, Ka Yu Cheng1,4, Kayley Usher1, and Aino-Maija Lakaniemi1,5 1CSIRO Land and Water, 147 Underwood Avenue, Floreat WA 6014, Australia 2School of Pathology and Laboratory Medicine, and Oceans Institute, University of Western Australia, Nedlands, Western Australia 6009, Australia 3CSIRO Mineral Resources, Kensington WA 6151, Australia 4School of Engineering and Information Technology, Murdoch University, Murdoch, Western Australia 6150, Australia 5 Tampere University of Technology, Faculty of Natural Sciences, Laboratory of Chemistry and Bioengineering, P.O. Box 541, FI-33101 Tampere, Finland *Corresponding author: anna.kaksonen@csiro.au Abstract....
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...Furthermore, Acidihalobacter prosperus strain F5 was the first halotolerant, iron- and sulfur oxidising acidophile to be isolated from a mixed culture obtained from a saline drain in the Yilgarn Crater region of Western Australia (Khaleque et al., 2017; Zammit et al., 2009)....
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74 citations
Cites background or methods from "The Characterization of Salt Tolera..."
...Leachate samples were taken at three time points (0, 11, and 14 days) for DNA extraction (Zammit et al. 2009a, b) of planktonic bacteria, whereas a sample of pyrite was taken for DNA extraction from the sessile bacteria only at the end of the experiment....
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...An enrichment culture obtained from an acidic saline drain in Western Australia was also included in the study (cultured at pH 1.8 and 37°C; Zammit et al. 2009a, b)....
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...Previously, the acidic saline drain enrichment culture used in this study has been demonstrated to be capable of iron(II) oxidation at 0– 30 g−1 NaCl (Zammit et al. 2009a, b)....
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...The negative effect of NaCl on cell numbers (Shiers et al. 2005; Suzuki et al. 1999; Zammit et al. 2009a, b) and bioleaching (Gahan et al. 2010; Gahan et al. 2009; Kinnunen and Puhakka 2004) have been previously demonstrated....
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...An earlier study (Zammit et al. 2009a, b) established the effect of chloride on the growth and iron(II) oxidation of a range of biomining microorganisms....
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61 citations
Cites background from "The Characterization of Salt Tolera..."
...In general, chloride in leachates inhibits growth, iron(II) and sulphur oxidation by bioleaching microorganisms [94,107,108]....
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...‘Mesophilic mixed culture’ [108] 0–3 [1....
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55 citations
Cites background or result from "The Characterization of Salt Tolera..."
...35% NaCl although the time that cell density reached maximum value was longer as shown in Table 2, which was consistent with results of previous reports (Segerer et al., 1986; Zammit et al., 2009; Gahan et al., 2010)....
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...In addition, NaCl can be brought into bioleaching process through many forms including gangue dissolution, poor water quality in some areas where levels of NaCl is high and using waste ash as a neutralizing agent (Shiers et al., 2005; Gahan et al., 2009; Zammit et al., 2009)....
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...However, F. thermophilum L1 could grow well in the presence of 0.35% NaCl although the time that cell density reached maximum value was longer as shown in Table 2, which was consistent with results of previous reports (Segerer et al., 1986; Zammit et al., 2009; Gahan et al., 2010)....
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