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Nicotine metabolism pathway in bacteria: mechanism, modification, and application

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Abstract

Nicotine is a harmful pollutant mainly from the waste of tobacco factories. It is necessary to remove nicotine via high efficient strategies such as bioremediation. So far, an increasing number of nicotine degrading strains have been isolated. However, their degrading efficiency and tolerance to high content nicotine is still not high enough for application in real environment. Thus, the modification of nicotine metabolism pathway is obligated and requires comprehensive molecular insights into whole cell metabolism of nicotine degrading strains. Obviously, the development of multi-omics technology has accelerated the mechanism study on microbial degradation of nicotine and supplied more novel strategy of strains modification. So far, three pathways of nicotine degradation, pyridine pathway, pyrrolidine pathway, and the variant of pyridine and pyrrolidine pathway (VPP pathway), have been clearly identified in bacteria. Muti-omics analysis further revealed specific genome architecture, regulation mechanism, and specific genes or enzymes of three pathways, in different strains. Especially, muti-omics analysis revealed that functional modules coexisted in different genome loci and played additional roles on enhanced degradation efficiency in bacteria. Based on the above discovery, genomic editing strategy becomes more feasible to greatly improve bacterial degrading efficiency of nicotine.

Key points

  • An increasing number of nicotine degrading strains have been isolated

  • Multi-omics technology accelerates the mechanism study on microbial degradation of nicotine

  • Genome editing strategy is potential for enhancement modification of nicotine-degrading strains

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Acknowledgements

W.Z. thanks CNSF (National Natural Science Foundation of China) for grants support for this work. W. Z specially appreciates Dr. Alexander Steinbüchel (Editor-in-Chief to AMB) for his encouragement and helpful suggestion for this review.

Funding

This study was funded by the National Natural Science Foundation of China (No. 31970104, 21938012, 31670115).

National Natural Science Foundation of China,No. 31970104,Weihong Zhong,21938012,Weihong Zhong,31670115,Weihong Zhong

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Contributions

Z.Z. wrote the original draft; X.M. and Z.H. collected data and draw the charts; X.X. and C.M. helped to collect data; D.X. and T.H. reviewed and edited the draft; Y.Y. and M.S. outlined the content and reviewed the graft; W.Z. conceived, designed, and edited this manuscript. All authors read and approved the manuscript.

Corresponding authors

Correspondence to Yang Yang or Weihong Zhong.

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The authors declare no competing interests.

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Zhang, Z., Mei, X., He, Z. et al. Nicotine metabolism pathway in bacteria: mechanism, modification, and application. Appl Microbiol Biotechnol 106, 889–904 (2022). https://doi.org/10.1007/s00253-022-11763-y

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  • DOI: https://doi.org/10.1007/s00253-022-11763-y

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