alexa Allovahlkampfia spelaea is a Potential Environmental Host for Pathogenic Bacteria
ISSN: 2155-9597

Journal of Bacteriology & Parasitology
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Research Article

Allovahlkampfia spelaea is a Potential Environmental Host for Pathogenic Bacteria

Mona Embarek Mohamed1*, Enas Abdelhameed Huseein2, Haiam Mohamed Farrag2,5, Fatma Abdel Aziz Mostafa3,5 and Alaa Thabet Hassan4

1Department of Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt

2Department of Parasitology, Faculty of Medicine, Assiut University, Assiut, Egypt

3Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza, Egypt

4Department of Chest Diseases, Assiut University Hospitals, Assiut, Egypt

5Faculty of Applied Medical Science, Shaqra University, Kingdom of Saudi Arabia

*Corresponding Author:
Mona Embarek Mohamed
Department of Microbiology and Immunology
Faculty of Medicine, Assiut University
71515 Assiut, Egypt
Tel: +20-882413500/2411899
Fax: +20882333327
E-mail: [email protected]

Received Date: November 19, 2015 Accepted Date: December 28, 2015 Published Date: January 04, 2016

Citation:Mohamed ME, Huseein EA, Farrag HM, Mostafa FAA, Hassan AT (2016) Allovahlkampfia spelaea is a Potential Environmental Host for Pathogenic Bacteria. J Bacteriol Parasitol 7:255. doi: 10.4172/2155-9597.1000255

Copyright: © 2016 Mohamed ME, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Allovahlkampfia spelaea was identified for the first time in 2009. As a free living amoeba, it has been suggested to be a protective host for some bacterial pathogens against harsh environmental conditions and can transmit them to vulnerable hosts. We aimed in this study to test the interactions between Allovahlkampfia spelaea and some waterborne and foodborne bacteria and unravel if the tested bacteria can survive and multiply inside amoeba. We used a keratitis isolate of Allovahlkampfia spelaea grown in PYG medium containing proteose peptone, yeast extracts, and glucose. We examined amoeba interactions with Methicillin resistant Staphylococcus aureus, Escherichia coli 1, Klebsiella pneumoniae, Enterobacter aerogenes, Citrobacter cloaca, Proteus mirabilis, Raoultella terrigena, Raoultella ornitholytica, Aeromonas hydrophila and Pseudomonas aeruginosa using the co-culture assays. Amoebal survival rate with different bacterial strains were determined. With the exception of Proteus mirabilis that showed decreased survival rates inside amoebal cells, other bacterial isolates could survive and multiply inside Allovahlkampfia spelaea that was associated with decreased survival rates of the amoeba. Particularly, Pseudomonas aeruginosa, Aeromonas hydrophila and MRSA exhibited significantly increased multiplication rates inside amoeba. Our study demonstrated that Allovahlkampfia spelaea may act as a replicative host for pathogenic bacteria with environmental and clinical implications.


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