Heavy Metal Tolerance of Fungi Isolated from Contaminated Soil

Joo, Jin Ho; Hussein, Khalid A.

doi:10.7745/kjssf.2012.45.4.565

Cited by 28 publications

(12 citation statements)

References 23 publications

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“…Metals such as copper and zinc are essential to biological actions, but they could be toxic at a certain high level depending on both the isolated strain and site of isolation . The fungal populations isolated from sites contaminated with heavy metals demonstrated higher tolerance to their toxicity .…”

Section: Resultsmentioning

confidence: 99%

Cellular Response to Cu‐ and Zn‐Induced Oxidative Stress in Aspergillus fumigatus Isolated From Polluted Soils in Bulgaria

Krumova

Kostadinova

Miteva‐Staleva

et al. 2016

CLEAN Soil Air Water

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The fungal strain Aspergillus fumigatus 3 2 isolated from the tailings pond at the copper mine "Vlaykov vruh," Bulgaria, showed high tolerance to Cu 2þ and Zn 2þ . This study was designed to explore the relationship between Cu 2þ and Zn 2þ tolerance and cellular response to oxidative stress. The model strain was identified to species level by morphological and molecular methods. Fungal cultures were exposed to enhanced concentrations of metal ions. The effect of Cu 2þ and Zn 2þ was evaluated by the changes in fungal growth and morphology, the level of oxidative stress biomarkers, and the antioxidant activities of enzymes such as superoxide dismutase (SOD) and catalase (CAT). Two different cellular responses occurred: The concentrations of up to 500 mg/mL caused enhanced levels of oxidative stress biomarkers (glycogen and trehalose accumulation and oxidatively damaged protein content), as well as an increase in SOD and CAT activities. The treatment with concentrations from 500 to 2000 mg/mL led to enhanced glycogen consumption, accelerated proteolysis, and a decrease in SOD and CAT activities. The present results provide additional information about the participation of oxidative stress and antioxidant defense in enhanced tolerance of fungi isolated from metal-polluted soils. Probably, survival at extremely high concentrations also requires the participation of other defense mechanisms. Furthermore, the enhanced understanding of these processes will provide essential tools for efficient remediation practices.

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Section: Resultsmentioning

confidence: 99%

Cellular Response to Cu‐ and Zn‐Induced Oxidative Stress in Aspergillus fumigatus Isolated From Polluted Soils in Bulgaria

Krumova

Kostadinova

Miteva‐Staleva

et al. 2016

CLEAN Soil Air Water

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“…Podemos notar que el género Aspergillus es identificado también por otros autores lo que indica que este género tiene una buena capacidad de resistencia. Fomitopsis, Trichoderma, Rhizopus, Penicillium, Saccharomyces, Rhodosporidium y Aspergillus fueron identificados en suelo de mina (Oladipo et al, 2018); (Joo & Hussein, 2012). Trichoderma y Aspergillus fueron encontrados en suelo industrial contaminado con Zinc (Mazyar et al, 2010); (Khamesy et al, 2016).…”

Section: Discussionunclassified

“…Nuestros resultados muestran concentraciones de zinc (8810.4 ppm) y plomo (3844.4 ppm) Tabla 3. Resultados semejantes encontraron (Joo & Hussein, 2012) quienes analizaron muestras de suelo en área minera encontrando; Zinc (4383 ppm) y Plomo (3521 ppm). Los valores tienden a descender al analizar otro tipo de muestra como sedimento de rio contaminado con Zinc (219 ppm) (Mazyar et al, 2010), vertimientos de industrias como fertilizantes, energía eléctrica, mármol-granito y alimentos, plomo (0.4528; 0.4224; 0.6652; 0.5390 ppm) y zinc (0.223; 0.225; 0.204; 0.306 ppm) respectivamente (Migahed et al, 2015).…”

Section: Discussionunclassified

Hongos filamentos de relave minero contaminado con plomo y zinc

Ladera¹,

Sánchez²

2020

Rev. Inst. investig. Fac. minas metal cienc. geogr

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El objetivo del trabajo fue identificar géneros de hongos filamentosos y determinar la concentración de plomo y zinc en las muestras de relave minero. Aislamos e identificamos hongos filamentosos mediante el método de diluciones seriadas y la técnica de micro cultivo respectivamente, también determinamos metales pesados, pH y el % H de muestras de relave tomadas en tres áreas representativas. Identificamos nueve géneros fúngicos: Penicillium, Aspergillus, Paecylomices, Acremonium, Chrysosporium, Trichoderma, Alternaria, Helicosporium y Geoctrichum de un total de sesenta y dos cepas de hongos filamentosos presentes en el relave minero que presentaba las siguientes características físico químicas: Zinc (Zn) con 8810,4 ppm y plomo (Pb) 3844,4 ppm, el pH tuvo una variación de 1,75 – 7,85 y %H de 10,7 – 2,6.

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“…Components of cell wall like polysaccharides,peptides and peptioglycan are rich in ligands that can bind metal ions (e.g -OH, -COOH, -HPO 4 2−, SO 4 2− -RCOO−, R 2 OSO 3−, -NH 2 , and -SH where amine group is the most effective one for the uptake of metal as it can bind anionic metals via electrostatic force of attraction and cationic metals via surface complex formation ) . Fungi have greater surface : volume ratio in comparison to bacteria therefore tolerance level of fungi is more as compared to bacteria 49 .A brief summary of the fungi which are used in the removal of some heavy metals is given in table 4. Algae are the photosynthetic microbes that may be single or multicellular with on roots ,stem or leaves and may grow in freshwater also as in seawater.…”

Section: Bacteriamentioning

confidence: 99%

A Review on Bioremediation of Heavy Metals by Microbes

Saraswat¹,

Saraswat²,

Yadav³

2020

IJAR

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Heavy metals represent an interesting group of naturally existing inorganic micro-pollutants that are released in the environment by various phenomenon. Heavy metals are important both biologically and industrially but at high concentration in environment they have toxic effects. Metallic elements which have a density more than 5gm/cm 3 are termed as heavy metals. Heavy metals like Fe, Cd, Mn ,Hg Cr and many more are the indicators of human progress. Kennish (1992) 1 classified heavy metals as the metallic elements having atomic weights usually greater than 50. Hence in periodic table the transition elements from Vanadium (Except Sc and Ti) to the metalloid As, from Zirconium (except Y) to Antimony from Lanthanum to Polonium, the lanthanides and the actinides can be defined as heavy metals 2 .In All the major civilization past or present these heavy metals were used in one form or other. we can not imagine of any industry without these metals .Most of the toxic organic pollutants can be destroyed by combustion and can be converted into easily controllable pollutants such as CO, CO 2, SO x and NO x, but combustion has no effect on metals .Metals can not be destroyed. These heavy metals exists normally in the earth environment because of the continuous chemical and physical changes occurring due to metamorphic and igneous rocks. Similarly naturally occurring decay of plant and animal waste matter, precipitation or atmospheric accumulation of airborne particles from volcanic eruption, forest fire smoke, wind erosion and oceanic spray also contribute exposure of heavy metals in the environment 1. It has been found that in the past few years rapid industrialisation throughout the world has increased the concentration of these heavy metals in the environment. Toxic metals mobilize from Industrial activities and Fossil fuel combustion and eventually they are passed into the food chain leading to ecological and severe health problems. Table 1:-Industrial sources of some common heavy metals. Metals Industry Chromium (Cr) Lead (Pb) Mercury (Hg) Arsenic (As) Copper (Cu) Nickel(Ni) Cadmium (Cd) Zinc (Zn) Mining , chrome plating, coolants in industry ,As catalyst in tanning of leather , road runoff and making alloys. Mining, smelting, Lead batteries, electronic-waste, ceramics, bangle industry, ship building ,road runoff and in paints industry Chlor-alkali plants, fluorescent lights, fluorescent lamps ,dental amalgams ,thermometers, barometer, electrical appliances, , thermal power plants. Burning of fuel, Alloys, as dopent , arsenical pesticides ,herbicide , in electronic industry , thermal power plants and preservatives of wood Mining, electronic industry ,copper plating and smelting operations, Metal plating, smelting process,combustion of fossil fuel, electroplating, thermal power plants, battery industry, road runoff. Ni/Cd batteries, e-waste, paint sludge, incinerations and fuel combustion, road runoff. Smelting, electroplating, road runoff.

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Heavy Metal Tolerance of Fungi Isolated from Contaminated Soil

Cited by 28 publications

References 23 publications

Cellular Response to Cu‐ and Zn‐Induced Oxidative Stress in Aspergillus fumigatus Isolated From Polluted Soils in Bulgaria

Cellular Response to Cu‐ and Zn‐Induced Oxidative Stress in Aspergillus fumigatus Isolated From Polluted Soils in Bulgaria

Hongos filamentos de relave minero contaminado con plomo y zinc

A Review on Bioremediation of Heavy Metals by Microbes

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