Biodegradation of the Pesticide Fenamiphos by Ten Different Species of Green Algae and Cyanobacteria |
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| Authors: | Tanya P Cáceres Mallavarapu Megharaj Ravi Naidu |
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| Institution: | (1) Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA, 5095, Australia;(2) Cooperative Research Centre for Contamination Assessment and Remediation of Environments (CRC CARE), University of South Australia, Mawson Lakes, SA, 5095, Australia |
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| Abstract: | The degradation of an organophosphorus pesticide, fenamiphos, by different species of five green algae and five cyanobacteria
was studied. All the species tested were able to transform fenamiphos to its primary oxidation product, fenamiphos sulfoxide
(FSO), while the majority of these cultures were able to hydrolyze FSO to fenamiphos sulfoxide phenol (FSOP). Fenamiphos sulfone
phenol, FSOP, and FSO were detected in the culture extracts of these algae and cyanobacteria. This is the first report on
the biodegradation of a toxic pesticide, fenamiphos, by cyanobacteria. The ability of these algae and cyanobacteria to detoxify
fenamiphos can be gainfully used in bioremediation of this pesticide and its toxic metabolites. |
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