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Microbiology and Biotechnology Letters

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Microbiol. Biotechnol. Lett. 2011; 39(2): 182-187

Cu 내성 근권 세균 Alcaligenes sp. KC-1의 분리 및 생장특성

Characterization of Growth Inhibition and Isolation of a Copper-Resistant Rhizobacterium, Alcaligenes sp. KC-1

Sun-Hwa Hong , Ki-Chul Shin and Eun-Young Lee

Department of Environmental and Energy Engineering, University of Suwon, 1Department of Environmental and Energy Engineering, University of Suwon, 2Department of Environmental and Energy Engineering, University of Suwon

Abstract

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In this study, A bacterium with an ability to resist toxic heavy metals was isolated from reeds in wetland. The isolated strain was identified to Alcaligenes sp. KC-1 by 16S rDNA sequencing. Heavy metals such as Pb, $Cr^{6+}$, Cd, Zn and Cu were supplied to media. The ecotoxic treat of the heavy metals on the growth of strain KC-1 was performed when the isolated strain Alcaligenes sp. KC-1 cultured with Cu ranging from 0 mM to 20 mM. It showed the resistance of $EC_{50}$(7.34 mM) and cell growth ($OD_{600;nm}$ : 0.83 after 42 hours) when it was cultured in Cu.

Keywords: Alcaligenes sp.;$EC_{50}$;heavy metal;Cu-resistant bacterium;

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