Recent advances in glyphosate biodegradation
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Glyphosate has emerged as the most widespread herbicide to control annual and perennial weeds. Massive use of glyphosate for decades has resulted in its ubiquitous presence in the environment, and poses a threat to humans and ecosystem. Different approaches such as adsorption, photocatalytic degradation, and microbial degradation have been studied to break down glyphosate in the environment. Among these, microbial degradation is the most effective and eco-friendly method. During its degradation, various microorganisms can use glyphosate as a sole source of phosphorus, carbon, and nitrogen. Major glyphosate degradation pathways and its metabolites have been frequently investigated, but the related enzymes and genes have been rarely studied. There are many reviews about the toxicity and fate of glyphosate and its major metabolite, aminomethylphosphonic acid. However, there is lack of reviews on biodegradation and bioremediation of glyphosate. The aims of this review are to summarize the microbial degradation of glyphosate and discuss the potential of glyphosate-degrading microorganisms to bioremediate glyphosate-contaminated environments. This review will provide an instructive direction to apply glyphosate-degrading microorganisms in the environment for bioremediation.
KeywordsGlyphosate Biodegradation mechanism Carbon-phosphorus lyase Aminomethylphosphonic acid Bioremediation
This study was partially funded by grants from the National Natural Science Foundation of China (31401763), the National Key Project for Basic Research (2015CB150600), Guangdong Natural Science Funds for Distinguished Young Scholar (2015A030306038), the Science and Technology Planning Project of Guangdong Province (2016A020210106, 2017A010105008) and Pearl River S&T Nova Program of Guangzhou (201506010006).
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
This article does not contain any studies with human participants or animals performed by any of the authors.
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