مجلة التربية والعلم (Sep 2008)

Determination of the sensitivity of Rhizobium leguminosarum bv.viciae bacteria to the anti-beta-lactam group

  • Mohammed AL-Taee,
  • Mohammed Alhes

DOI
https://doi.org/10.33899/edusj.2008.56036
Journal volume & issue
Vol. 21, no. 3
pp. 66 – 75

Abstract

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ABSTRACT Rhizobium leguminosarum bv.viciae was isolated and identified from root nodules of Vicia faba L. plant. Its susceptibility to 14 types of -lactam antibiotics was tested by disk diffusion method. The isolate was resistant to the following antibiotics; Amoxicillin, Carbencillin, Cephalexin, Cephradine, Cefuroxime, Cefotaxime, Ceftazidime, Cefixime, Ceftizoxime, Cefepime, and Aztreonam, while it was sensitive to only three antibiotics including; Imipenem, Cefoperazone and Ceftriaxone. The occurrence of multiple drug resistance in a soil bacterium, that is not a pathogen, suggests that chemotherapeutic use of antibiotics is not required for the development of multiple drug resistance. This may considers as a defense line to protect plant roots from pathogenic soil microorganisms.

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