孔雀石绿降解菌M3的分离鉴定及降解特性研究

doi:CNKI:SUN:NCST.0.2007-03-014

Journal of Ecology and Rural Environment ›› 2007, Vol. 23 ›› Issue (3): 65-69.doi: CNKI:SUN:NCST.0.2007-03-014

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Isolation and Identification of Malachite Green-Degrading Bacteria M3 and Its Degradation Characteristics

REN Qian, JIANG Li-Juan, SONG Wei, YANG Liu-Yan, XIAO Lin, ZHANG Tong-Qing, LIN Hai, PAN Jian-Lin

School of the Environment,Nanjing University

Received:2007-03-05 Online:2007-07-25 Published:2011-05-09
Contact: YANG Liu-Yan School of the Environment,Nanjing University

Abstract

Abstract: A strain of bacterium M3,capable of degrading malachite green efficiently,was screened out of sediment of a fish pond.Through 16S rDNA sequential analysis M3 was identified as Pantoea sp.When the concentration of malachite green was 0.5,1.0,2.0 and 5.0 mg·L^-1,its degradation rate was 97.54%,97.1%,100 % and 77.8%,respectively in 5 days of static incubation at 30 ℃.But the strain is unable to utilize malachite green as its sole carbon source.Glucose,NH₄NO₃ and KH₂PO₄/K₂HPO₄ can affect the degradation of malachite green.At the temperature ranging from 20 to 30 ℃,the strain can efficiently degrade malachite green with its degradation rate increasing with the temperature.

Key words: malachite green, biodegradation, 16S rDNA, degradation condition

CLC Number:

X172

REN Qian, JIANG Li-Juan, SONG Wei, YANG Liu-Yan, XIAO Lin, ZHANG Tong-Qing, LIN Hai, PAN Jian-Lin. Isolation and Identification of Malachite Green-Degrading Bacteria M3 and Its Degradation Characteristics[J]. Journal of Ecology and Rural Environment, 2007, 23(3): 65-69.

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Isolation and Identification of Malachite Green-Degrading Bacteria M3 and Its Degradation Characteristics

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