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Zhang Y, Chen X, Xie L. Pleurotus pulmonarius Strain: Arsenic(III)/Cadmium(II) Accumulation, Tolerance, and Simulation Application in Environmental Remediation. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:5056. [PMID: 36981967 PMCID: PMC10049176 DOI: 10.3390/ijerph20065056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/08/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
The arsenic (As, III) and cadmium (Cd, II) accumulation and tolerance traits of a new strain Pleurotus pulmonarius MT were evaluated, and the utilization of the strain for repairing contaminated liquid and soil was explored. The hypha cultivated in potato dextrose agar (PDA) exhibited medium or high Cd accumulation (0 to 320 mg/L), medium Cd tolerance (maximum tolerated concentration, MTC ≥ 640 mg/L), medium As accumulation (0 to 80 mg/L), and high As tolerance (MTC > 1280 mg/L). The hypha has application potential in processes related to the removal of Cd and As in aqueous pollutants at concentrations of 80 mg/L Cd and 20 mg/L As. The trends obtained for the fruiting bodies of P. pulmonarius MT seemed to deviate from those of the hypha of this strain. The results show that the fruiting bodies featured medium As accumulation (0 to 40 mg/kg), medium As tolerance (MTC > 160 mg/kg), medium Cd accumulation (0 to 10 mg/kg), and high Cd tolerance (MTC > 1280 mg/kg). The fruiting bodies of P. pulmonarius MT were utilized in processes related to the recovery of Cd and As in substrates, that is, 12% contaminated soil mixed with 50 mg/kg Cd and 200 mg/kg As; thus, the hypha and fruiting bodies of P. pulmonarius MT can be used for the decontamination of water and soil containing As(III) and Cd(II).
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Affiliation(s)
- Yuhui Zhang
- Horticulture College, Hunan Agricultural University, Changsha 410128, China
| | - Xiaohong Chen
- Horticulture College, Hunan Agricultural University, Changsha 410128, China
| | - Ling Xie
- Horticulture College, Hunan Agricultural University, Changsha 410128, China
- Hunan Engineering Research Center of Edible Fungi, Changsha 410128, China
- Key Laboratory for Vegetable Biology of Hunan Province, Changsha 410128, China
- Engineering Research Center for Horticultural Crop Germplasm Creation and New Variety Breeding, Ministry of Education, Changsha 410128, China
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Bhavya G, Hiremath KY, Jogaiah S, Geetha N. Heavy metal-induced oxidative stress and alteration in secretory proteins in yeast isolates. Arch Microbiol 2022; 204:172. [PMID: 35165751 DOI: 10.1007/s00203-022-02756-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 11/29/2022]
Abstract
In the recent years, yeasts have evolved as potent bioremediative candidates for the detoxification of xenobiotic compounds found in the natural environment. Candida sp. are well-studied apart from Saccharomyces sp. in heavy metal detoxification mechanisms. In the current study, Candida parapsilosis strain ODBG2, Candida sp. strain BANG3, and Candida viswanathii strain ODBG4 were isolated from industrial effluents and contaminated ground water, and were studied for their metal tolerance. Among these three isolates, the metal tolerance was found to be more towards Lead (Pb 2 mM), followed by Cadmium (Cd 1.5 mM) and Chromium [Cr(VI), 1 mM]. On further exploring the involvement of primary defensive enzymes in these isolates towards metal tolerance, the anti-oxidative enzyme superoxide dismutase was found to be prominently high (25% with respect to the control) during first 24 h of metal-isolate interaction. The Catalase enzyme assay was observed to have increased enzyme activity at 48 h. It also triggered the activity of peroxidases, which lead to the increase in reduced glutathione in the organism by 0.87-1.9-fold as a metal chelator and also as a second-line defensive molecule. The exoproteome profile showed the early involvement (exponential growth phase) of secreted proteins (low-molecular-weight) of about ~ 40-45 kDa under Cd and Pb stress (0.5 mM). The exoproteome profiling under heavy metal stress in Candida parapsilosis strain ODBG2 and Candida viswanathii strain ODBG4 is the first report.
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Affiliation(s)
- Gurulingaiah Bhavya
- Nanobiotechnology Laboratory, Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570006, India
| | - Kavita Y Hiremath
- Laboratory of Plant Healthcare and Diagnostics, PG Department of Biotechnology and Microbiology, Karnatak University, Dharward, Karnataka, 580003, India
| | - Sudisha Jogaiah
- Laboratory of Plant Healthcare and Diagnostics, PG Department of Biotechnology and Microbiology, Karnatak University, Dharward, Karnataka, 580003, India.
| | - Nagaraja Geetha
- Nanobiotechnology Laboratory, Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570006, India.
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Vergara Cid C, Oburger E, Preiner J, Pignata ML, Rodriguez JH. Metal solubility in the rhizosphere of a co-cropping system. The role of total carbon exudation, soluble proteins and plant interaction. CHEMOSPHERE 2020; 273:128602. [PMID: 34756342 DOI: 10.1016/j.chemosphere.2020.128602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/02/2020] [Accepted: 10/08/2020] [Indexed: 06/13/2023]
Abstract
In the present study we assessed how modified rhizosphere pH and root exudation (total carbon (C) and soluble proteins released) affected lead (Pb) solubility as well as plant growth and Pb accumulation. A pot experiment with Pb polluted agricultural soils was performed, which involved growing two species, Capsicum annum (pepper) and Tagetes minuta, with the latter being a native herb indicated as potential phytoextractor of Pb, in monocrop and co-cropping conditions. Changes in plant growth, metal uptake as well as rhizosphere soil parameters (pH, EC) and total C and protein exudation were determined. In addition, the metal extraction efficiency of exudates released under mono- and co-cropped conditions were investigated. Results showed that in contrast to the control soil (with low Pb concentration), total C exudation was higher in co-cropping systems in Pb contaminated soils which lead to increases in Pb uptake in both species. Exudates originating from T. minuta were more efficient in solubilizing Pb than exudates from pepper when grown under mono-cropping conditions. Exudates derived from co-cropping both species were either equally or less efficient in mobilizing Pb than exudates from T. minuta. The capacity of exudates to mobilize metals was dependent not only on the species specific quality of root exudates released, but also on its quantity, with the metal extraction efficiency increasing with C concentration in exudates. However, the role of exuded proteins in Pb solubilization was found to be negligible. Biochemical interactions in the rhizosphere under co-cropping conditions favored metal solubilization, and consequently Pb accumulation. The co-cropping conditions could allow accumulation of Pb to levels in pepper that pose risks when the plants are used as a food source.
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Affiliation(s)
- Carolina Vergara Cid
- Instituto Multidisciplinario de Biología Vegetal, Área Contaminación y Bioindicadores, Universidad Nacional de Córdoba, CONICET, FCEFyN, Av. Vélez Sársfield 1611, X5016CGA, Córdoba, Argentina.
| | - Eva Oburger
- BOKU, Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences, Konrad-Lorenz Strasse 24, A-3430, Tulln, Austria
| | - Julian Preiner
- Department of Functional and Evolutionary Ecology, Division of Molecular Systems Biology, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria
| | - María L Pignata
- Instituto Multidisciplinario de Biología Vegetal, Área Contaminación y Bioindicadores, Universidad Nacional de Córdoba, CONICET, FCEFyN, Av. Vélez Sársfield 1611, X5016CGA, Córdoba, Argentina
| | - Judith H Rodriguez
- Instituto Multidisciplinario de Biología Vegetal, Área Contaminación y Bioindicadores, Universidad Nacional de Córdoba, CONICET, FCEFyN, Av. Vélez Sársfield 1611, X5016CGA, Córdoba, Argentina
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