Extrinsic Antibiotic-Resistant Mechanism in Bacteria

  • Sadhana Sagar
  • Shilpa Kaistha
  • Amar Jyoti Das
  • Rajesh Kumar


Bacteria have acquired a variety of resistance mechanisms to tackle with the challenging environmental conditions. These resistance mechanisms can be intrinsic and extrinsic. Bacteria can respond immediately to the changing environmental conditions by acquiring characteristic traits, altering the functionality of genome, or acquiring competent genome from other species. In case of extrinsic resistance mechanism, bacteria acquire resistance gene from other bacteria which have already resistance for the harsh environmental conditions. In this chapter we have discussed about the horizontal gene transfer, mobile gene transfer, and recombination.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Sadhana Sagar
    • 1
  • Shilpa Kaistha
    • 2
  • Amar Jyoti Das
    • 3
  • Rajesh Kumar
    • 3
  1. 1.Department of MicrobiologyRani Lakshmi Bai Central Agricultural UniversityJhansiIndia
  2. 2.Department of MicrobiologyChhatrapati Sahu Ji Maharaj UniversityKanpurIndia
  3. 3.Department of Environmental MicrobiologyBabasaheb Bhimrao Ambedkar UniversityLucknowIndia

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