American Journal of Life Sciences

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Isolation, Cloning and Expression of Rhamnolipid Operon from Pseudomonas aeroginosa ATCC 9027 in Logarithmic Phase in E. coli BL21

Received: 19 October 2014    Accepted: 08 December 2014    Published: 23 March 2017
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Abstract

The rhamnolipid operon from Pesudomonas strain with the native promoter was not expressed in logarithmic phase of Ecoli. The expression of rhamnolipid in logarithmic phase of growth whether the regulatory elements of the operon are eliminated or not was investigated. The rhamnolipid operon was identified in Pseudomonas aeruginosa ATCC 9027 and the rhlAB genes related to rhamnolipid were isolated and amplified by PCR. The PCR product was cloned in pET 23a expression vector and transferred into the E. coli BL21. The expression of rhlAB genes was analyzed and our results showed that the synthesis of monorhamnolipid occurred in logarithmic phase. In addition this data demonstrated a higher production of rhamnolipid in recombinant Ecoli Bl21compared to that indigenous Pseudomonas aeruginosa ATCC 9027.

DOI 10.11648/j.ajls.s.2014020603.15
Published in American Journal of Life Sciences (Volume 2, Issue 6-3, December 2014)

This article belongs to the Special Issue Microbiology Research

Page(s) 22-30
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

MEOR, Manipulated E. coli BL21, Monorhamnolipid, Logarithmic Phase

References
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[13] Haba, E., Pinazo, A., Jauregui, O., Espuny, M. J., Infante, M. R. and Manresa, A., 2003. Physicochemical characterization and antimicrobial properties of rhamnolipids produced by Pseudomonas aeruginosa 47T2 NCBIM 40044. Biotechnology and Bioengineering 81(3): 316-322.
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Author Information
  • National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran

  • National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran

  • National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran

  • Department of Petroleum Biotechnology, Biotechnology Research Center, Research Institute of Petroleum Industry, Tehran, Iran

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    Amin Jafari, Jamshid Raheb, Hassan Bardania, Behnam Rasekh. (2017). Isolation, Cloning and Expression of Rhamnolipid Operon from Pseudomonas aeroginosa ATCC 9027 in Logarithmic Phase in E. coli BL21. American Journal of Life Sciences, 2(6-3), 22-30. https://doi.org/10.11648/j.ajls.s.2014020603.15

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    ACS Style

    Amin Jafari; Jamshid Raheb; Hassan Bardania; Behnam Rasekh. Isolation, Cloning and Expression of Rhamnolipid Operon from Pseudomonas aeroginosa ATCC 9027 in Logarithmic Phase in E. coli BL21. Am. J. Life Sci. 2017, 2(6-3), 22-30. doi: 10.11648/j.ajls.s.2014020603.15

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    AMA Style

    Amin Jafari, Jamshid Raheb, Hassan Bardania, Behnam Rasekh. Isolation, Cloning and Expression of Rhamnolipid Operon from Pseudomonas aeroginosa ATCC 9027 in Logarithmic Phase in E. coli BL21. Am J Life Sci. 2017;2(6-3):22-30. doi: 10.11648/j.ajls.s.2014020603.15

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  • @article{10.11648/j.ajls.s.2014020603.15,
      author = {Amin Jafari and Jamshid Raheb and Hassan Bardania and Behnam Rasekh},
      title = {Isolation, Cloning and Expression of Rhamnolipid Operon from Pseudomonas aeroginosa ATCC 9027 in Logarithmic Phase in E. coli BL21},
      journal = {American Journal of Life Sciences},
      volume = {2},
      number = {6-3},
      pages = {22-30},
      doi = {10.11648/j.ajls.s.2014020603.15},
      url = {https://doi.org/10.11648/j.ajls.s.2014020603.15},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajls.s.2014020603.15},
      abstract = {The rhamnolipid operon from Pesudomonas strain with the native promoter was not expressed in logarithmic phase of Ecoli. The expression of rhamnolipid in logarithmic phase of growth whether the regulatory elements of the operon are eliminated or not was investigated. The rhamnolipid operon was identified in Pseudomonas aeruginosa ATCC 9027 and the rhlAB genes related to rhamnolipid were isolated and amplified by PCR. The PCR product was cloned in pET 23a expression vector and transferred into the E. coli BL21. The expression of rhlAB genes was analyzed and our results showed that the synthesis of monorhamnolipid occurred in logarithmic phase. In addition this data demonstrated a higher production of rhamnolipid in recombinant Ecoli Bl21compared to that indigenous Pseudomonas aeruginosa ATCC 9027.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Isolation, Cloning and Expression of Rhamnolipid Operon from Pseudomonas aeroginosa ATCC 9027 in Logarithmic Phase in E. coli BL21
    AU  - Amin Jafari
    AU  - Jamshid Raheb
    AU  - Hassan Bardania
    AU  - Behnam Rasekh
    Y1  - 2017/03/23
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    N1  - https://doi.org/10.11648/j.ajls.s.2014020603.15
    DO  - 10.11648/j.ajls.s.2014020603.15
    T2  - American Journal of Life Sciences
    JF  - American Journal of Life Sciences
    JO  - American Journal of Life Sciences
    SP  - 22
    EP  - 30
    PB  - Science Publishing Group
    SN  - 2328-5737
    UR  - https://doi.org/10.11648/j.ajls.s.2014020603.15
    AB  - The rhamnolipid operon from Pesudomonas strain with the native promoter was not expressed in logarithmic phase of Ecoli. The expression of rhamnolipid in logarithmic phase of growth whether the regulatory elements of the operon are eliminated or not was investigated. The rhamnolipid operon was identified in Pseudomonas aeruginosa ATCC 9027 and the rhlAB genes related to rhamnolipid were isolated and amplified by PCR. The PCR product was cloned in pET 23a expression vector and transferred into the E. coli BL21. The expression of rhlAB genes was analyzed and our results showed that the synthesis of monorhamnolipid occurred in logarithmic phase. In addition this data demonstrated a higher production of rhamnolipid in recombinant Ecoli Bl21compared to that indigenous Pseudomonas aeruginosa ATCC 9027.
    VL  - 2
    IS  - 6-3
    ER  - 

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