Frontiers of Environmental Science & Engineering
>> 2012,
Volume 6,
Issue 2
doi:
10.1007/s11783-011-0316-4
RESEARCH ARTICLE
In situ enhanced bioremediation of dichlorvos by a phyllosphere
Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
Available online: 2012-04-01
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Abstract
A bacterium capable of degrading dichlorvos was isolated from the rape phyllosphere and designated YD4. The strain was identified as sp., based on its phenotypic features and 16S rRNA gene sequence. Strain YD4 was able to utilize dichlorvos as the sole source of phosphorus. 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 phyllosphere bioremediation where the hostile niche is unsuitable for other pesticide-degrading bacteria isolated from soil and water.
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