Isolation and degrading characteristics of picoxystrobin degrading strain

doi:10.3969/j.issn.1004-1524.2016.09.14

›› 2016, Vol. 28 ›› Issue (9): 1550-1557.DOI: 10.3969/j.issn.1004-1524.2016.09.14

• Plant Portection • Previous Articles Next Articles

Isolation and degrading characteristics of picoxystrobin degrading strain

WU Long-fei¹, LUO Xiang-wen^{1, 2}, LIU Yong^{1, 2}, LI Meng-qing¹, DU Jiao², ZHANG De-yong^{1, 2, *}

1. College of Plant Protection, Hunan Agricultural University, Changsha 410128, China;
2. Hunan Plant Protection Institute, Changsha 410125, China

Received:2016-04-19 Online:2016-09-15 Published:2016-11-23

Abstract

Abstract: The strain PID-1 was screened and isolated by enrichment culture, and was primarily identified as Rhodopseudomonas palustris based on morphology, physiological and biochemical characteristics as well as phylogenetic analysis of 16S rDNA sequences. The optimal degrading conditions of PID-1 were pH 7 and 35 ℃. Under this condition, up to 83.54% of 100 mg·L^-1 picoxystrobin could be degraded by PID-1. The metabolics of picoxystrobin degraed by PID-1 were identified by mass spectrum as 1-(1,5-dimethylhexyl-)-4-methyl-benzene, 2,5-bis (1,1-dimethylethyl)-phenol, butyl 2-methyoxyethyl ester, bis (tert-butyldimethylsilyl) ester, 1-(3-n-propoxyphenyl)-2-propanone oxime and 2-nitro-4-(trifluoromethyl) phenol.

Key words: picoxystrobin, Rhodopseudomonas palustris, degrading pathway

CLC Number:

X592

WU Long-fei, LUO Xiang-wen, LIU Yong, LI Meng-qing, DU Jiao, ZHANG De-yong. Isolation and degrading characteristics of picoxystrobin degrading strain[J]. , 2016, 28(9): 1550-1557.

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Isolation and degrading characteristics of picoxystrobin degrading strain

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