December 2015

Etiology and microbiology of periodontal diseases: A review

Nowadays, there is a high prevalence of periodontal disease worldwide, and knowing the etiology is basic for its control. Biofilms that colonize the oral cavity are among the most complex of nature. Besides pathogenic microorganisms, genetic and environmental factors contribute to the development of this disease. Periodontal disease can be increased by several risk factors such as smoking, systemic diseases, medications...

Author(s): Vargas Segura A. I., Ilyina A., Segura Ceniceros E. P., Silva Belmares Y. and Méndez González L.

December 2015

Effects of plasmid acquisition by Pseudomonas aeruginosa clinical isolates on methicillin-resistant Staphylococcus aureus biofilm formation

This work aimed to study the influence of plasmid acquisition on the mutual interaction of certain Pseudomonas aeruginosa clinical isolates and methicillin resistant Staphylococcus aureus (MRSA) clinical isolates. In this study, two mixed cultures were used: i) P. aeruginosa clinical isolate P14 which co-existed with MRSA isolate S14; and ii) P. aeruginosa clinical isolate P12 which co-existed with MRSAisolate S12. The...

Author(s): Sarra E. Saleh, Khaled M. Aboshanab, Mohammad M. Aboulwafa and Nadia A. Hassouna

December 2015

Arsenite-oxidizing bacteria isolated from arsenic contaminated surface and ground water of Uttar Pradesh, India

Arsenic (As) contamination of surface and ground waters in Uttar Pradesh (UP) is geological in nature, even though some degree of As contamination may be due to anthropogenic activities. Little is known about the arsenite oxidizing bacteria in aquatic environments of UP. In this study we isolated the As resistant bacteria from both surface and ground waters of UP. Seven potential strains were isolated by culture method...

Author(s): Bilal Ahmad Tantry, Ibrahim Taher, Divya Shrivastava and Mudasar Nabi