Pedosphere 32(1): 171--183, 2022
ISSN 1002-0160/CN 32-1315/P
©2022 Soil Science Society of China
Published by Elsevier B.V. and Science Press
A review on phorate persistence, toxicity and remediation by bacterial communities
Mohd A. DAR1, Zahoor A. BABA2, Garima KAUSHIK1
1Department of Environmental Science, School of Earth sciences, Central University of Rajasthan, BandarSindri, Ajmer 305801(India)
2Biofertilizer Research Laboratory, Division of Basic Science and Humanities, Wadura, Sher-e-Kashmir University of Agricultural Sciences and Technology, Sopore 193201(India)
ABSTRACT
      Pesticides are an integral part in maintaining agriculture and horticultural productivity and play a vital role in meeting the increasing food, fiber, and fuel needs of the growing population. Globally, organophosphate pesticides (OPPs) are among the most common pesticides used due to their high proficiency and relatively low persistence in the environment. However, recent studies have reported problems due to pesticide use, e.g., phorate contamination of aquatic ecosystems (fresh and groundwater), sediments, fruits and vegetables, and forage crops. This review highlights many cases where phorate has been detected above its respective maximum residue limit values. Organophosphate pesticides, including phorate, have negative impacts on both the environment and human health. The ecological and public health concerns of recurrent pesticide utilization have encouraged the research related to environmental fate of pesticides. Bioremediation is an effective, eco-friendly, and financially viable approach for the decontamination and degradation of toxic OPPs from the environment, compared to the costly, unecological, and time-consuming physicochemical approaches, which lead to the generation of byproducts of higher toxicity. Researchers have recognized that a wide range of microbes, mainly bacteria, can degrade this extremely hazardous pesticide. Therefore, this review discusses the present pesticide scenarios, especially phorate contamination, its toxicity, biodegradation, and metabolic products via bacterial communities, both in India and globally. The latest and up-to-date literatures on the use, contamination, and bacterial application of phorate degradation are also summarized. This article offers national and international food safety organizations and public health authorities the ability to be involved in preventing the risks associated with the use of food and nutrition products contaminated with extremely toxic phorate pesticide. This article would also enable researchers to develop comprehensive and sustainable methods to effectively remediate pesticide-contaminated environments. In conclusion, it is envisaged that the successful application of bacterial communities for degradation of phorate would help in understanding the fate and persistence of such toxic pollutants in a better way.
Key Words:  biodegradation,bioremediation,contamination,organophosphate pesticide,residue
Citation: Dar M A, Kaushik G, Baba Z A. 2022. A review on phorate persistence, toxicity and remediation by bacterial communities. Pedosphere. 32(1): 171–183.
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