Abstract
Antimicrobial resistance in bacteria is a global threat that can make antibacterial treatments ineffective. One well-known method of antibiotic resistance and a common defensive mechanism in many harmful bacteria is the synthesis of endogenous hydrogen sulfide (H2S) in bacteria. In this study, soil bacteria were screened using the lead acetate agar test and the triple sugar iron test to determine that they were non-endogenous H2S producers. This was further validated by full genome analysis of the identified organism against the gene sequences of H2S-producing genes. Antibacterial resistance of the bacteria was phenotypically analyzed using the Kirby-Bauer disk diffusion method. Then, the effect of exogenous H2S on the antibiotic-resistant bacteria was checked in sodium sulfide, leading to antibiotic re-sensitization.
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S.P.S. and P.S. contributed equally to the conceptualization of this work. S.P.S., S.S. were responsible for writing the manuscript. P.S was responsible for supervising the writing of manuscript. All authors have read and consented to the publication of the manuscript.
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Selvakumar, S., Singh, S. & Swaminathan, P. Detection and evaluation of susceptibility to antibiotics in non-hydrogen sulfide-producing antibiotic-resistant soil microbe: Pseudomonas guariconensis. Int Microbiol (2024). https://doi.org/10.1007/s10123-024-00537-3
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DOI: https://doi.org/10.1007/s10123-024-00537-3