January 2017

Characteristics of 32 Acinetobacter baumanni isolates co-harboring OXA-Carbapenemases and 16S rRNA methylase gene

Multiple drug-resistant strains of Acinetobacter have become common in hospitals worldwide. The problem becomes more acute with existence of hidden Carbapanemase-resistance genes that co-exist with other resistance determinants. Based on this, this research aims to determine the occurrence and co-existence of OXA-type carbapenemases and 16S rRNA methylase gene among clinical isolates of A. baumannii in a Jilin hospital,...

Author(s): Padde John Roberts, Jama Suleiman Hassan, Xiaohan Li and Mingcheng Li

January 2017

Phytochemical screening of Azadirachta indica A. Juss for antimicrobial activity

Azadirachta indica A. Juss, known as neem (Meliacea family), has insecticide and pesticide properties, and many studies have shown their efficacy as antifungal, anti-inflammatory, among others. Studies for the development of drugs from plants are rising due to several factors such as bacterial resistance, indiscriminate use and the adverse reactions of antibiotics. In this study, phytochemical triage and thin layer...

Author(s): Mariana C. Galeane, Carlos H. G. Martins, Jaqueline Massuco, Taís M. Bauab, Luís V. S. Sacramento

January 2017

Prospecting of efficient rhizobia for peanut inoculation in a Planosol under different vegetation covers

Peanut (Arachis hypogaea L.) is capable of establishing an efficient symbiosis with a wide range of rhizobia, nevertheless, the inoculation of this legume is under used due to lack of information on the bacteria naturally established in soils and the agronomic and economic viability of the practice. The aim of this study was to evaluate the diversity and the symbiotic efficiency of peanut rhizobia from a Planosol under...

Author(s): Carolina Etienne de Rosália e Silva Santos, Vinicius Santos Gomes da Silva, Ana Dolores Santiago de Freitas, Aleksandro Ferreira da Silva, Rosemberg de Vasconcelos Bezerra, Maria do Carmo Catanho Pereira de Lyra and Juscélia da Silva Ferreira

January 2017

Identification and production of biofilm by Staphylococcus aureus isolated from buffalo milk and milking environment

The interest in production of buffalo milk is increasing in Brazil due to its physico-chemical and nutritional characteristics. However, just as sheep, goats and cows are susceptible to mastitis, so are buffaloes, which is mainly caused by Staphylococcus aureus. In this regard, biofilm formation, the ability to escape host immune defense and virulence factor, is presumably a key factor for acute and chronic...

Author(s): Camila Chioda de Almeida, Lucas José Luduvério Pizauro, Oswaldo Durival Rossi Junior and João Martins Pizauro†