Accumulation of Heavy Metals by Ectomycorrhizal Fungi Colonizing Birch Trees Growing in an Industrial Desert Soil

Krupa, Piotr; Kozdrój, Jacek

doi:10.1023/b:wibi.0000033067.64061.f3

Cited by 56 publications

(24 citation statements)

References 18 publications

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“…Such a metal-adapted Suillus-Pinus combination might be suitable for large-scale land reclamation at phytotoxic metalliferous and industrial sites (Adriaensen et al, 2005). Ectomycorrhizal fungi persistently fixed Cd(II) and Pb(II), and formed an efficient biological barrier that reduced movement of these metals in birch tissues (Krupa & Kozdroj, 2004). Such mycorrhizal metal immobilization around plant roots, including biomineral formation, may also assist soil remediation and revegetation.…”

Section: Mycoremediation and The Mycorrhizospherementioning

confidence: 99%

Metals, minerals and microbes: geomicrobiology and bioremediation

2010

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Microbes play key geoactive roles in the biosphere, particularly in the areas of element biotransformations and biogeochemical cycling, metal and mineral transformations, decomposition, bioweathering, and soil and sediment formation. All kinds of microbes, including prokaryotes and eukaryotes and their symbiotic associations with each other and 'higher organisms', can contribute actively to geological phenomena, and central to many such geomicrobial processes are transformations of metals and minerals. Microbes have a variety of properties that can effect changes in metal speciation, toxicity and mobility, as well as mineral formation or mineral dissolution or deterioration. Such mechanisms are important components of natural biogeochemical cycles for metals as well as associated elements in biomass, soil, rocks and minerals, e.g. sulfur and phosphorus, and metalloids, actinides and metal radionuclides. Apart from being important in natural biosphere processes, metal and mineral transformations can have beneficial or detrimental consequences in a human context. Bioremediation is the application of biological systems to the clean-up of organic and inorganic pollution, with bacteria and fungi being the most important organisms for reclamation, immobilization or detoxification of metallic and radionuclide pollutants. Some biominerals or metallic elements deposited by microbes have catalytic and other properties in nanoparticle, crystalline or colloidal forms, and these are relevant to the development of novel biomaterials for technological and antimicrobial purposes. On the negative side, metal and mineral transformations by microbes may result in spoilage and destruction of natural and synthetic materials, rock and mineral-based building materials (e.g. concrete), acid mine drainage and associated metal pollution, biocorrosion of metals, alloys and related substances, and adverse effects on radionuclide speciation, mobility and containment, all with immense social and economic consequences. The ubiquity and importance of microbes in biosphere processes make geomicrobiology one of the most important concepts within microbiology, and one requiring an interdisciplinary approach to define environmental and applied significance and underpin exploitation in biotechnology. Microbes as geoactive agentsMicrobes interact with metals and minerals in natural and synthetic environments, altering their physical and chemical state, with metals and minerals also able to affect microbial growth, activity and survival. In addition, many minerals are biogenic in origin, and the formation of such biominerals is of global geological and industrial significance, as well as providing important structural components for many organisms, including important microbial groups such as diatoms, foraminifera and radiolaria (Ehrlich, 1996;Gadd & Raven, 2010). Geomicrobiology can simply be defined as the roles of microbes in geological processes (Banfield & Nealson, 1997;Banfield et al., 2005; Konhauser, 2007;Ehrlich & Newman, 2009). Metalminera...

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Section: Mycoremediation and The Mycorrhizospherementioning

confidence: 99%

Metals, minerals and microbes: geomicrobiology and bioremediation

2010

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“…However, the other two analysed wild mushrooms (A. augusta and B. subvelutipes) reflected the presence of heavy metals in excess amounts than threshold concentration. This can be attributed to the fact that these two macrofungi undergo ectomycorrhizal association that in turn increase their efficiency to uptake metals from the soil (Krupa & Kozdroj, 2004). Thus, further extensive assays on these two mushrooms are recommended to scrutinize their level of potent toxicity before dispensing them to pharmaceutical industry for incorporation into drugs and medicine.…”

Section: Resultsmentioning

confidence: 99%

Bioaccumulation of heavy metals in the sporocarps of some wild mushrooms

Lalotra¹

2016

CREAM

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The fruiting bodies of wild mushrooms show high concentrations of heavy metals due to their efficacious mechanism of accumulation of these elements from soil. In accordance with this ability, three wild macrofungi viz., Macrolepiota procera (edible species), Amanita augusta (non-edible species), Boletus subvelutipes (poisonous species) and their respective soil samples collected from different forest areas of Jammu Province were analysed for the presence of six heavy metals (Zn, Cu, Mn, Fe, Cd, Pb). The metallic content was established by Atomic absorption spectrophotometer (AAS) and Inductively coupled Plasma-Atomic Emission spectrometry method (ICP AES). The results of heavy metals concentration are given in mg of metal per kg of dry matter and demonstrate important variation between the level of concentration in edible, non edible and toxic species. Moreover, the mean element distribution varied depending upon the part of fruiting body of macrofungi. In A. augusta these elements were detected under permissible limits for consumption. On the contrary, high ratio of zinc, copper, manganese, iron, lead and cadmium were found in A. augusta and B. subvelutipes indicating that these elements are accumulated at much higher levels in these wild growing mushrooms. Thus, it is worthwhile to evaluate the metal content in the wild macrofungi to assess their contribution to the daily intake of several toxic elements so that it would adjudicate the mushrooms for its nutritive value in terms of minerals and also define the limits of safety. As mushrooms have been known to possess good nutraceutical and pharmaceutical potential, a detailed analysis of their sporocarps is desirable before their incorporation into routine diet, drugs and medicine.

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“…Essa melhoria foi notadamente mais acentuada nas plantas inoculadas com os isolados UFSC-Ch163 e UFSC-Pt188. A tolerância de fungos ectomicorrízicos à presença de metais tóxicos no solo e em meios de cultura tem sido amplamente demonstrada, embora os mecanismos de ação ainda não estejam completamente esclarecidos (COLPAERT; VAN ASSCHE, 1992a, b;HARTLEY-WHITAKER et al, 2000;KRUPA;KOZDRÓJ, 2004;MOYER-HENRY et al, 2005).…”

Section: Figure 4 -Plant Dry Matter Of Eucalyptus Dunnii Seedlings Iunclassified

“…Os metais, na forma de íons solúveis no solo, são absorvidos pelas plantas e inibem o crescimento das raízes, diminuem a integridade das membranas biológicas e alteram o funcionamento normal das enzimas (KRUPA; KOZDRÓJ, 2004), prejudicando o desenvolvimento das plantas e a produção de madeira.…”

Section: Introductionunclassified

Tolerância de fungos ectomicorrízicos e plantas associadas a níveis tóxicos de metais

Targhetta¹,

Oliveira

Rossi³

2013

Rev. Árvore

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RESUMO -As ectomicorrizas são associações entre raízes de plantas e fungos, de grande importância para a sobrevivência e crescimento vegetal, por aumentar o aporte nutricional e a proteção contra fatores adversos. Os fungos ectomicorrízicos podem quelar íons de metais tóxicos, retirando-os do solo e diminuindo os danos ao hospedeiro. Quatro isolados de fungos ectomicorrízicos foram utilizados neste estudo: UFSC-Sc68 (Scleroderma sp.); UFSC-Ch163 (Chondrogaster angustisporus); UFSC-Pt116 e UFSC-Pt188 (Pisolithus microcarpus). Mudas de Eucalyptus dunnii foram testadas quanto à sua tolerância aos metais alumínio (Al), cádmio (Cd), cromo (Cr) e manganês (Mn) misturados ao substrato de plantio, em dois experimentos em casa de vegetação. No primeiro, em ausência dos fungos e, no segundo, após inoculação com esses organismos. No experimento sem inoculação, o metal mais tóxico foi o Cr. Nenhuma planta sobreviveu nas doses 1000 e 10000 mg.kg -1 desse metal. Para os outros metais, a matéria seca diminuiu com o aumento da dose. Já no estudo com plantas inoculadas, o Cd foi o metal mais tóxico, que reduziu significativamente a sobrevivência e o crescimento das plantas. Os isolados fúngicos UFSC-Pt188 e UFSC-Ch163 foram os mais eficientes na proteção contra os metais, melhorando a sobrevivência e a produção de matéria seca das plantas. O isolado UFSC-Ch163, em particular, foi o mais eficiente na tolerância das plantas, o que indica seu potencial de utilização em solos contaminados para favorecer o estabelecimento e o crescimento das plantas.Palavras-chave: Biorremediação; Eucalipto; Contaminação do solo. TOLERANCE OF ECTOMYCORRHIZAL FUNGI AND PLANTS ASSOCIATED TO TOXIC LEVELS OF METALS

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Accumulation of Heavy Metals by Ectomycorrhizal Fungi Colonizing Birch Trees Growing in an Industrial Desert Soil

Cited by 56 publications

References 18 publications

Metals, minerals and microbes: geomicrobiology and bioremediation

Metals, minerals and microbes: geomicrobiology and bioremediation

Bioaccumulation of heavy metals in the sporocarps of some wild mushrooms

Tolerância de fungos ectomicorrízicos e plantas associadas a níveis tóxicos de metais

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