Extracts of Acacia farnesiana and Artemisia ludoviciana inhibit growth, enterotoxin production and adhesion of Vibrio cholerae

  • Santos García
  • Ginebra Alarcón
  • Cristina Rodríguez
  • Norma Heredia


Extracts of 32 medicinal plants commonly used in Mexico were evaluated for their effects on the growth of Vibrio cholerae strains O1 and O139. Of these, the ethanolic extracts of Acacia farnesiana and Artemisia ludoviciana effectively inhibited bacterial growth. The effects of these plant extracts on enterotoxin production and adhesion of V. cholerae to Chinese hamster ovary (CHO) cells were determined. The minimal bactericidal concentration (MBC) for growth was 4.0–7.0 mg/ml for A. farnesiana and 4.0–6.0 mg/ml in A. ludoviciana spp. mexicana. Cholera toxin was inhibited when lower concentrations (50% or 75% of the MBC) of extracts were added to the media. Pre-exposing bacteria or CHO cells to various concentrations of extracts affected in a different manner the adhesion between bacteria and CHO cells.


Acacia farnesiana adhesion Artemisia ludoviciana cholera toxin medicinal plants Vibrio cholerae 


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This work was supported by the Consejo Nacional de Ciencia y Tecnología de México (CONACYT) and by Universidad Autónoma de Nuevo León. Ginebra Alarcón was a CONACYT Fellow.


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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Santos García
    • 1
  • Ginebra Alarcón
    • 1
  • Cristina Rodríguez
    • 1
  • Norma Heredia
    • 1
  1. 1.Departamento de Microbiología e Inmunología, Facultad de Ciencias BiológicasUniversidad Autónoma de Nuevo León San NicolásMéxico

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