Widespread Utilization of Diverse Organophosphate Pollutants by Marine Bacteria

Author:

Despotović DraganaORCID,Aharon Einav,Trofimyuk OlenaORCID,Dubovetskyi ArtemORCID,Cherukuri Kesava Phaneendra,Ashani YacovORCID,Leader HaimORCID,Castelli Andrea,Fumagalli Laura,Savidor AlonORCID,Levin YishaiORCID,Longo Liam M.ORCID,Segev EinatORCID,Tawfik Dan S.ORCID

Abstract

AbstractAnthropogenic organophosphates (AOPs), such as phosphotriesters, are used extensively as plasticizers, flame retardants, nerve agents and pesticides. Soil bacteria bearing a phosphotriesterase (PTE) can degrade AOPs, but whether bacteria are capable of utilizing AOPs as a phosphorus source, and how widespread PTEs are in nature, remains unclear. Here, we report the utilization of diverse AOPs by four model marine bacteria and seventeen bacterial isolates from seawater samples. To unravel the details of AOP utilization, two novel PTEs from marine bacteria were isolated and characterized. When expressed in E. coli, these PTEs enabled growth on a pesticide analog as the sole phosphorus source. Utilization of AOPs provides bacteria with a source of phosphorus in depleted environments and offers a new prospect for the bioremediation of a pervasive class of anthropogenic pollutants.One sentence summaryWidespread utilization of diverse organophosphate pollutants by over 20 marine bacterial strains represents a new hope for ocean bioremediation.

Publisher

Cold Spring Harbor Laboratory

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