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Oliveira AFD, Machado RB, Ferreira AM, Sena IDS, Silveira ME, Almeida AMSD, Braga FS, Rodrigues ABL, Bezerra RM, Ferreira IM, Florentino AC. Copper-Contaminated Substrate Biosorption by Penicillium sp. Isolated from Kefir Grains. Microorganisms 2023; 11:1439. [PMID: 37374942 DOI: 10.3390/microorganisms11061439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/25/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
In this bioremediation study, the fungus Penicillium sp. isolated from kefir grains was evaluated for its resistance to copper in the culture medium. Penicillium sp. was cultivated in liquid medium prepared using 2% malt-agar at pH 7.0. Biomass of the fungus was significantly reduced, but only when 800 mg·L-1 of Cu(NO3)2 copper nitrate was used. The effect on radial growth of the fungus in experiments combining different pH values and the inorganic contaminant showed an inhibition of 73% at pH 4.0, 75% at pH 7.0 and 77% at pH 9.0 in liquid medium. Thus, even though the growth of Penicillium sp. could be inhibited with relatively high doses of copper nitrate, images obtained with scanning electron microscopy showed the preservation of fungal cell integrity. Therefore, it can be concluded that Penicillium sp. isolated from kefir grains can survive while performing bioremediation to minimize the negative effects of copper on the environment through biosorption.
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Affiliation(s)
- Antonio Ferreira de Oliveira
- Ichthyo and Genotoxicity Laboratory, Department of Exact and Technological Sciences, Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil
| | - Raquellyne Baia Machado
- Ichthyo and Genotoxicity Laboratory, Department of Exact and Technological Sciences, Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil
| | - Adriana Maciel Ferreira
- Research Laboratory of Drugs, Department of Biological and Health Sciences, Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil
| | - Iracirema da Silva Sena
- Laboratory of Biocatalysis and Applied Organic Synthesis, Department of Exact and Technological Sciences, Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil
| | - Maria Eduarda Silveira
- Ichthyo and Genotoxicity Laboratory, Department of Exact and Technological Sciences, Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil
| | - Ana Maria Santos de Almeida
- Ichthyo and Genotoxicity Laboratory, Department of Exact and Technological Sciences, Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil
| | - Francinaldo S Braga
- Ichthyo and Genotoxicity Laboratory, Department of Exact and Technological Sciences, Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil
| | - Alex Bruno Lobato Rodrigues
- Analytical Chemistry Laboratory, Department of Exact and Technological Sciences, Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil
| | - Roberto Messias Bezerra
- Ichthyo and Genotoxicity Laboratory, Department of Exact and Technological Sciences, Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil
| | - Irlon Maciel Ferreira
- Laboratory of Biocatalysis and Applied Organic Synthesis, Department of Exact and Technological Sciences, Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil
| | - Alexandro Cezar Florentino
- Ichthyo and Genotoxicity Laboratory, Department of Exact and Technological Sciences, Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil
- Analytical Chemistry Laboratory, Department of Exact and Technological Sciences, Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil
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Guro P, Ulianich P, Shaposhnikov A, Yuzikhin O, Karlov D, Sazanova A, Safronova V, Belimov A. Draft Genome Sequence of the Bacterium Cupriavidus sp. Strain D39, Inhabiting the Rhizosphere of Pea Plants (Pisum sativum L.). Microbiol Resour Announc 2023; 12:e0135422. [PMID: 36943044 PMCID: PMC10112225 DOI: 10.1128/mra.01354-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
We report the draft genome sequence of Cupriavidus sp. strain D39, associated with the roots of pea plants. The genome is characterized by a GC content of 63.62% and a total length of 7.7 Mbp and contains several putative genes associated with resistance to metals and plant growth promotion.
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Affiliation(s)
- Polina Guro
- All-Russia Research Institute for Agricultural Microbiology (ARRIAM), St. Petersburg, Russian Federation
| | - Pavel Ulianich
- All-Russia Research Institute for Agricultural Microbiology (ARRIAM), St. Petersburg, Russian Federation
| | - Alexander Shaposhnikov
- All-Russia Research Institute for Agricultural Microbiology (ARRIAM), St. Petersburg, Russian Federation
| | - Oleg Yuzikhin
- All-Russia Research Institute for Agricultural Microbiology (ARRIAM), St. Petersburg, Russian Federation
| | - Denis Karlov
- All-Russia Research Institute for Agricultural Microbiology (ARRIAM), St. Petersburg, Russian Federation
| | - Anna Sazanova
- All-Russia Research Institute for Agricultural Microbiology (ARRIAM), St. Petersburg, Russian Federation
| | - Vera Safronova
- All-Russia Research Institute for Agricultural Microbiology (ARRIAM), St. Petersburg, Russian Federation
| | - Andrey Belimov
- All-Russia Research Institute for Agricultural Microbiology (ARRIAM), St. Petersburg, Russian Federation
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Aeromonas sobria as a potential candidate for bioremediation of heavy metal from contaminated environments. Sci Rep 2022; 12:21235. [PMID: 36481784 PMCID: PMC9732040 DOI: 10.1038/s41598-022-25781-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
The uncontrolled discharge of industrial wastes causes the accumulation of high heavy metal concentrations in soil and water, leading to many health issues. In the present study, a Gram-negative Aeromonas sobria was isolated from heavily contaminated soil in the Tanjaro area, southwest of Sulaymaniyah city in the Kurdistan Region of Iraq; then, we assessed its ability to uptake heavy metals. A. sobria was molecularly identified based on the partial amplification of 16S rRNA using novel primers. The sequence was aligned with 33 strains to analyze phylogenetic relationships by maximum likelihood. Based on maximum tolerance concentration (MTC), A. sobria could withstand Zn, Cu, and Ni at concentrations of 5, 6, and 8 mM, respectively. ICP-OES data confirmed that A. sobria reduced 54.89% (0.549 mM) of the Cu, 62.33% (0.623 mM) of the Ni, and 36.41% (0.364 mM) of the Zn after 72 h in the culture medium. Transmission electron microscopy (TEM) showed that A. sobria accumulated both Cu and Ni, whereas biosorption was suggested for the Zn. These findings suggest that metal-resistant A. sobria could be a promising candidate for heavy metal bioremediation in polluted areas. However, more broadly, research is required to assess the feasibility of exploiting A. sobria in situ.
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