In situ enhanced bioremediation of dichlorvos by a phyllosphere Flavobacterium strain

A bacterium capable of degrading dichlorvos was isolated from the rape phyllosphere and designated YD4. The strain was identified as Flavobacterium sp., based on its phenotypic features and 16S rRNA gene sequence. Strain YD4 was able to utilize dichlorvos as the sole source of phosphorus. In situ en...

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Published inFrontiers of environmental science & engineering Vol. 6; no. 2; pp. 231 - 237
Main Authors Ning, Jiying, Gang, Gang, Bai, Zhihui, Hu, Qing, Qi, Hongyan, Ma, Anzhou, Zhuan, Xuliang, Zhuang, Guoqiang
Format Journal Article
LanguageEnglish
Published Heidelberg Springer-Verlag 01.04.2012
Higher Education Press
SP Higher Education Press
Springer Nature B.V
Subjects
bacteria
Biodegradation
Bioremediation
Chlorpyrifos
Degradation
Dichlorvos
Earth and Environmental Science
enhanced
enhanced bioremediation
Environment
epiphytes
Flavobacterium
Flavobacterium sp
leaves
nucleotide sequences
organophosphorus pesticides
organophosphoruspesticides
Pesticides
Phosphorus
Phoxim
Phyllosphere
Rape
Research Article
ribosomal RNA
rRNA 16S
Soil bacteria
Soil microorganisms
Soil water
Spraying
organophosphorus pesticides
phyllosphere
enhanced bioremediation
sp
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Summary:A bacterium capable of degrading dichlorvos was isolated from the rape phyllosphere and designated YD4. The strain was identified as Flavobacterium sp., based on its phenotypic features and 16S rRNA gene sequence. Strain YD4 was able to utilize dichlorvos as the sole source of phosphorus. In situ enhanced bioremediation of dichlorvos by YD4 was hereafter studied. Chlorpyrifos and phoxim could also be degraded by this strain as the sole phosphorus source. A higher degradation rate of dichlorvos was observed after spraying YD4 onto the surface of rape leaves when compared to the sterilized-YD4 and water-treated samples. The results indicated that pesticide-degrading epiphytic bacterium could become a new way for in situ phyllosphere bioremediation where the hostile niche is unsuitable for other pesticide-degrading bacteria isolated from soil and water.
Bibliography:10-1013/X
Jiying NING, Gang GANG, Zhihui BAI, Qing HU, Hongyan QI, Anzhou MA, Xuliang ZHUAN, Guoqiang ZHUANG Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
enhanced bioremediation, organophosphoruspesticides, phyllosphere, Flavobacterium sp
A bacterium capable of degrading dichlorvos was isolated from the rape phyllosphere and designated YD4. The strain was identified as Flavobacterium sp., based on its phenotypic features and 16S rRNA gene sequence. Strain YD4 was able to utilize dichlorvos as the sole source of phosphorus. In situ enhanced bioremedia- tion of dichlorvos by YD4 was hereafter studied. Chlorpyrifos and phoxim could also be degraded by this strain as the sole phosphorus source. A higher degradation rate of dichlorvos was observed after spraying YD4 onto the surface of rape leaves when compared to the sterilized- YD4 and water-treated samples. The results indicated that pesticide-degrading epiphytic bacterium could become a new way for in situ phyllosphere bioremediation where the hostile niche is unsuitable for other pesticide-degrading bacteria isolated from soil and water.
http://dx.doi.org/10.1007/s11783-011-0316-4
organophosphorus pesticides
phyllosphere
Flavobacterium sp.
Document received on :2010-11-07
enhanced bioremediation
Document accepted on :2011-01-14
ISSN:2095-2201
2095-221X
DOI:10.1007/s11783-011-0316-4