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Growth response and mycoremediation of heavy metals by fungus Pleurotus sp. Sci Rep 2022; 12:19947. [PMID: 36402909 PMCID: PMC9675861 DOI: 10.1038/s41598-022-24349-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 11/14/2022] [Indexed: 11/21/2022] Open
Abstract
Heavy metal contamination (HMs) in water and soil is the most serious problem caused by industrial and mining processes and other human activities. Mycoremediation is a biotechnology that employs fungi to remove toxic contaminants from the environment in an efficient and cost-effective manner. Pleurotus spp. have been shown to either increase plant growth on metal-contaminated soils by providing more nutrients or by reducing metal toxicity. Pleurotus species (J. Lange), a mushroom that can be eaten, has been observed growing on plantations of wood trees in Kerman's orchards. P. sp. was the subject of this study, which examined the effects of different concentrations of various heavy metals Cobalt (Co), Copper (Cu), and Nickel (Ni) (0, 15, 30, 45, and 60 mg/L) on fungal colony diameters, mycelial dry weights, accumulation of heavy metals, and antioxidative enzymes. The findings revealed that P. sp. was more tolerant of Co than other metals, so the fungus grew more in the presence of low concentrations of Co and Cu. However, even at concentrations as low as 15 mg/L, Ni greatly inhibited the growth of biomass and colony diameter. Heavy metals increased the activity of superoxide dismutases (SOD) and catalase (CAT) up to 45 mg/L, but an increase in metal concentration above 45 mg/L resulted in a significant decrease in SOD. Metals in mycelium also increased as the concentrations of these heavy metals increased.
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Xu H, Hao R, Yang S, Xu X, Lu A, Li Y. Removal of lead ions in an aqueous solution by living and modified Aspergillus niger. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2021; 93:844-853. [PMID: 33131118 DOI: 10.1002/wer.1472] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 09/30/2020] [Accepted: 10/25/2020] [Indexed: 06/11/2023]
Abstract
An indigenous lead-tolerant fungal strain was isolated from lead-contaminated soil and identified as Aspergillus niger, via 18S rRNA gene sequencing. We determined the adsorption and accumulation of Pb(II) by living A. niger and the adsorption of Pb(II) via modified A. niger. This strain resisted and removed 96.21%-100% Pb(II) ranging from 2 to 8 mmol/L Pb(II). Pb-containing particles were observed outside of the cell, and lead was detected inside the cell under scanning electron microscopy and transmission electron microscopy. The process of measuring the adsorption ability of modified fungal biomass, freeze-dried, high-temperature, and alkali-treated fungal samples was analyzed; they adsorbed 25.02%, 8.76%, and 15.05% Pb(II) under 8 mmol/L Pb(II) in 43, 10, and 10 hr, respectively. These three types of modified A. niger fit the pseudo-second-order model equation well. PRACTITIONER POINTS: Isolation and identification of effective Pb(II) removal strain from the soil around Dexing lead-zinc mine. The ability of living and modified Aspergillus niger to remove Pb(II) in an aqueous environment was evaluated. Lead distributions inside and outside the cell were analyzed by SEM and TEM. Kinetic models for modified biomass adsorbing Pb(II) were made for describing adsorption process.
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Affiliation(s)
- Hui Xu
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, China
| | - Ruixia Hao
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, China
| | - Shiqin Yang
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, China
| | - Xiyang Xu
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, China
| | - Anhuai Lu
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, China
| | - Yinhuang Li
- The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, China
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Mwandira W, Nakashima K, Kawasaki S, Arabelo A, Banda K, Nyambe I, Chirwa M, Ito M, Sato T, Igarashi T, Nakata H, Nakayama S, Ishizuka M. Biosorption of Pb (II) and Zn (II) from aqueous solution by Oceanobacillus profundus isolated from an abandoned mine. Sci Rep 2020; 10:21189. [PMID: 33273589 PMCID: PMC7713119 DOI: 10.1038/s41598-020-78187-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 11/19/2020] [Indexed: 01/22/2023] Open
Abstract
The present study investigated biosorption of Pb (II) and Zn (II) using a heavy metal tolerant bacterium Oceanobacillus profundus KBZ 3-2 isolated from a contaminated site. The effects of process parameters such as effect on bacterial growth, pH and initial lead ion concentration were studied. The results showed that the maximum removal percentage for Pb (II) was 97% at an initial concentration of 50 mg/L whereas maximum removal percentage for Zn (II) was at 54% at an initial concentration of 2 mg/L obtained at pH 6 and 30 °C. The isolated bacteria were found to sequester both Pb (II) and Zn (II) in the extracellular polymeric substance (EPS). The EPS facilitates ion exchange and metal chelation-complexation by virtue of the existence of ionizable functional groups such as carboxyl, sulfate, and phosphate present in the protein and polysaccharides. Therefore, the use of indigenous bacteria in the remediation of contaminated water is an eco-friendly way of solving anthropogenic contamination.
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Affiliation(s)
- Wilson Mwandira
- Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 060-8628, Japan.,IWRM Centre/Geology Department, School of Mines, University of Zambia, P.O. Box 32379, Lusaka, Zambia
| | - Kazunori Nakashima
- Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 060-8628, Japan.
| | - Satoru Kawasaki
- Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 060-8628, Japan
| | - Allison Arabelo
- Department of Mining, Metallurgical, and Materials Engineering, University of the Philippines Diliman, Quezon City, Philippines
| | - Kawawa Banda
- IWRM Centre/Geology Department, School of Mines, University of Zambia, P.O. Box 32379, Lusaka, Zambia
| | - Imasiku Nyambe
- IWRM Centre/Geology Department, School of Mines, University of Zambia, P.O. Box 32379, Lusaka, Zambia
| | - Meki Chirwa
- IWRM Centre/Geology Department, School of Mines, University of Zambia, P.O. Box 32379, Lusaka, Zambia
| | - Mayumi Ito
- Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 060-8628, Japan
| | - Tsutomu Sato
- Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 060-8628, Japan
| | - Toshifumi Igarashi
- Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 060-8628, Japan
| | - Hokuto Nakata
- Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-Ku, Sapporo, 060-0818, Japan
| | - Shouta Nakayama
- Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-Ku, Sapporo, 060-0818, Japan
| | - Mayumi Ishizuka
- Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-Ku, Sapporo, 060-0818, Japan
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Kapahi M, Sachdeva S. Bioremediation Options for Heavy Metal Pollution. J Health Pollut 2019; 9:191203. [PMID: 31893164 PMCID: PMC6905138 DOI: 10.5696/2156-9614-9.24.191203] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 08/20/2019] [Indexed: 05/02/2023]
Abstract
BACKGROUND Rapid industrialization and anthropogenic activities such as the unmanaged use of agro-chemicals, fossil fuel burning and dumping of sewage sludge have caused soils and waterways to be severely contaminated with heavy metals. Heavy metals are non-biodegradable and persist in the environment. Hence, remediation is required to avoid heavy metal leaching or mobilization into environmental segments and to facilitate their extraction. OBJECTIVES The present work briefly outlines the environmental occurrence of heavy metals and strategies for using microorganisms for bioremediation processes as reported in the scientific literature. METHODS Databases were searched from different libraries, including Google Scholar, Medline and Scopus. Observations across studies were then compared with the standards for discharge of environmental pollutants. DISCUSSION Bioremediation employs microorganisms for removing heavy metals. Microorganisms have adopted different mechanisms for bioremediation. These mechanisms are unique in their specific requirements, advantages, and disadvantages, the success of which depends chiefly upon the kind of organisms and the contaminants involved in the process. CONCLUSIONS Heavy metal pollution creates environmental stress for human beings, plants, animals and other organisms. A complete understanding of the process and various alternatives for remediation at different steps is needed to ensure effective and economic processes. COMPETING INTERESTS The authors declare no competing financial interests.
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Affiliation(s)
- Meena Kapahi
- Department of Biotechnology, Manav Rachna International Institute of Research and Studies, Faridabad, India
- Department of Chemistry, Manav Rachna University, Faridabad, India
| | - Sarita Sachdeva
- Department of Biotechnology, Manav Rachna International Institute of Research and Studies, Faridabad, India
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Kumar A, Chaturvedi AK, Yadav K, Arunkumar KP, Malyan SK, Raja P, Kumar R, Khan SA, Yadav KK, Rana KL, Kour D, Yadav N, Yadav AN. Fungal Phytoremediation of Heavy Metal-Contaminated Resources: Current Scenario and Future Prospects. RECENT ADVANCEMENT IN WHITE BIOTECHNOLOGY THROUGH FUNGI 2019. [DOI: 10.1007/978-3-030-25506-0_18] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Kapahi M, Sachdeva S. Mycoremediation potential of Pleurotus species for heavy metals: a review. BIORESOUR BIOPROCESS 2017; 4:32. [PMID: 28752021 PMCID: PMC5504202 DOI: 10.1186/s40643-017-0162-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 07/04/2017] [Indexed: 11/24/2022] Open
Abstract
Mycoremediation is one of the biotechniques that recruits fungi to remove toxic pollutants from environment in an efficient and economical manner. Mushrooms, macro-fungi, are among the nature's most important mycoremediators. Pleurotus species (also called oyster mushrooms) are considered to be the most popular and widely cultivated varieties worldwide and this might be attributed to their low production cost and higher yields. Apart from their nutritive and therapeutic properties, Pleurotus species have high biosorption potential due to their extensive biomass, i.e. mycelial production. The genus has been reported to accumulate high levels of heavy metals. The current state-of-the art review mainly summarises previous investigations carried out by researchers on different roles and mechanisms played by Pleurotus species on heavy metals mycoremediation.
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Affiliation(s)
- Meena Kapahi
- Department of Biotechnology, Manav Rachna International University, Sector 43, Faridabad, 121004 India
- Manav Rachna University, Sector 43, Faridabad, 121004 India
| | - Sarita Sachdeva
- Department of Biotechnology, Manav Rachna International University, Sector 43, Faridabad, 121004 India
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