Heavy-Metal Tolerance of the Paecilomyces sp. BJKD1 Isolated from Coal Gangue

Xia Li; Yu Xiu Zhang; Tuan Yao Chai

doi:10.4028/www.scientific.net/AMM.295-298.1062

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 295-298Heavy-Metal Tolerance of the Paecilomyces sp....

Heavy-Metal Tolerance of the Paecilomyces sp. BJKD1 Isolated from Coal Gangue

Abstract:

Microorganisms can be the important biosorbents for heavy metal remediation of contaminated soils or wastewater. A BJKD1 strain isolated from coal gangue piles was identified as a member of the Paecilomyces sp., which can tolerate to 3200 mg/L Cd2+. Favorable condition for BJKD1 growth was at pH 4.0-9.0. The presence of heavy metals, such as 36 mmol/L Cd2+, 1 mmol/L Cu2+, 80 mmol/L Zn2+, 7 mmol/L Ni2+ and 100 mmol/L Mn2+, retarded the growth of BJKD1, however, BJKD1 showed more tolerance for Mn2+. The activity of superoxide dismutase (SOD ) and Catalase (CAT ) in BJKD1 was increased under high metals concentration, indicated BJKD1 has the potential for biological repair of heavy metal pollution in coal gangue piles.

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Periodical:

Applied Mechanics and Materials (Volumes 295-298)

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1062-1065

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https://doi.org/10.4028/www.scientific.net/AMM.295-298.1062

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Online since:

February 2013

Authors:

Xia Li, Yu Xiu Zhang, Tuan Yao Chai

Keywords:

Antioxidant Enzyme, Heavy Metal, Paecilomyces Sp., Tolerance

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