草酸青霉菌Penicillium oxalicum IM-3对氯代吡啶烟碱类杀虫剂的代谢作用

doi:CNKI:SUN:NCST.0.2010-03-013

Journal of Ecology and Rural Environment ›› 2010, Vol. 26 ›› Issue (3): 246-250.doi: CNKI:SUN:NCST.0.2010-03-013

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Metabolism of Chloronicotinyl Neonicotinoid Insecticides by Fungi Penicillium oxalicum IM-3

JI Wei-Wei, CHEN Ting, SANG Qi, DAI Yi-Jun, GE Feng, YUAN Sheng

College of Life Science,Nanjing Normal University

Received:2009-07-09 Online:2010-05-25 Published:2011-04-01
Contact: DAI Yi-Jun College of Life Science,Nanjing Normal University E-mail:daiyijun90@yahoo.com.cn

Abstract

Abstract: A strain of filamentous fungus capable of degrading acetamiprid,an insecticide of chloronicotinyl neonicotinoid series,was isolated from soil and named as Strain IM-3.IM-3 was identified as Penicillium oxalicum by morphology and 18S rDNA sequence analysis.In the medium of mineral salts,incubated for 14 days,P.oxalicum degraded 41.6% of AAP and 14.1% of imidacloprid;but nil of thiacloprid and nitenpyram.HPLC and LC-MS/MS analysis revealed that the metabolic pathway of AAP by P.oxalicum IM-3 was N-demethylation of AAP to form IM 2-1 and oxidative cleavage of cyanoimine moiety to form IM 1-3.

Key words: Penicillium oxalicum, chloronicotinyl neonicotinoid insecticides, biodegradation, metabolic pathway

CLC Number:

X172

JI Wei-Wei, CHEN Ting, SANG Qi, DAI Yi-Jun, GE Feng, YUAN Sheng. Metabolism of Chloronicotinyl Neonicotinoid Insecticides by Fungi Penicillium oxalicum IM-3[J]. Journal of Ecology and Rural Environment, 2010, 26(3): 246-250.

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Metabolism of Chloronicotinyl Neonicotinoid Insecticides by Fungi Penicillium oxalicum IM-3

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