A rapid and sensitive procedure for determining catabolic products of arginine metabolism by bacteria was developed. The method consists of inoculating a solution of L-arginine with a heavy cell suspension of the test organism. After a 2-hr incubation period, dissimilation products (citrulline, ornithine, agmatine, putrescine) are converted to volatile derivatives and analyzed by gas-liquid chr...

UNLABELLED BACKGROUND This study aims to investigate the influence of different stirring times on antibacterial activity of silver nanoparticles in polyethylene glycol (PEG) suspension. The silver nanoparticles (Ag-NPs) were prepared by green synthesis method using green agents, polyethylene glycol (PEG) under moderate temperature at different stirring times. Silver nitrate (AgNO3) was taken...

Extract of rat, rabbit or bull testicle prevents or retards the growth of a rabbit tumor when a mixture of the extract and a tumor cell suspension is inoculated intradermally. Similar mixtures, made with normal rabbit serum instead of testicle extract, give rise to tumors which grow with unusual rapidity. The results are the opposite of those obtained with pathogenic bacteria or filtrable virus...

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Introduction: Growth and proliferation of the remaining microorganisms within the root canals may destroy the surrounding tissue of the root and leads to periapical lesion. Consequently, the complete elimination of microorganisms from the root canal is a n important goal of endodontic therapy. Endodontic sealers do not provide complete seal in root canal system, and micro spaces have always rem...

In this study, an azo dye (Acid Blue 29 or AB29) was efficiently degraded with acetate as co-substrate into less contaminated biodegraded products using integrated single chamber microbial fuel cell (SMFC)-aerobic bioreactor set-up. The decolorization efficiencies were varied from 91 ± 2% to 94 1.9% and more than 85% of chemical oxygen demand (COD) removal achieved for all concentrations after ...

in order to investigate the effects of plant growth promoting rhizobacteria (pgprs) inoculation on the growth, yield and quality of eesetial oils of summer savory (satureja hortensis l .) a pot experiment based on randomized complete block design with three replication were conducted in field of research institute of forests and rangelands at 2012. bacterial treatments include suspension of thr...

The entomopathogenic fungus Beauveria bassiana was re-isolated from surface sterilized pieces of the cocoa pod outer section and peduncle, two and three months after flowers of greenhouse cocoa plants were hand-pollinated and sprayed with a 1x107 mL-1 suspension of B. bassiana conidia. The colonization frequency of B. bassiana on cocoa pods was 0.8% and 1.3% two and three months post-spraying o...