The prevention and control of peri-implantitis is a challenge in dental implant surgery. Dental implants with sustained antimicrobial coating are an ideal way of preventing peri-implantitis. This study reports development of a non- immunotoxicity multilayered coating on a titanium surface that had sustained antimicrobial activity and limited early biofilm formation. In this study, the broad spe...

We analysed the cold-responsive gene repertoire for a psychrophilic methanogen, Methanolobus psychrophilus R15 through genomic and RNA-seq assayed transcriptomic comparisons for cultures at 18°C (optimal temperature) versus 4°C. The differences found by RNA-seq analysis were verified using quantitative real time-PCR assay. The results showed that as in the Antarctic methanogen, Methanococcoides...

Acid solutions have been used as antimicrobials on meat and poultry. FreshFx is a commerciallyavailable surface treatment for the reduction of pathogens and extension of shelf life of raw poultry. Two replicate trials were conducted to determine the effect of FreshFx on numbers of total aerobes and inoculated Salmonella on raw turkey breast meat during 14 d of refrigerated storage. In each tria...

A slightly halophilic, Gram-stain-negative, straight-rod-shaped aerobe, strain JO1(T), was isolated from jeotgal, a traditional Korean fermented seafood. Cells were observed singly or in pairs and had 2-5 peritrichous flagella. Optimal growth occurred at 25 degrees C, in 6.5 % (w/v) salts and at pH 5.0-6.0. Strain JO1(T) was oxidase-negative and catalase-positive. Cells did not reduce fumarate,...

Bioprocesses conducted under conditions with restricted O2 supply are increasingly exploited for the synthesis of reduced biochemicals using different biocatalysts. The model facultative aerobe Escherichia coli, the microbial cell factory par excellence, has elaborate sensing and signal transduction mechanisms that respond to the availability of electron acceptors and alternative carbon sources...

This paper describes the properties and partial purification from Pseudomonas testosteroni of enzymes concerned with the introduction of unsaturation into ring A of 3-ketosteroids. These enzymes promote the formation of the A1e4-diene-3-one structure from steroids bearing C-19 angular methyl groups and the formation of ring A phenols from lQ-nor-steroids. P. testosteroni is a strict aerobe whic...

Studies on the metabolism of the strict aerobe Micrococcus sodonensis revealed that a considerable accumulation of a-ketoglutarate and glutamate occurred. This accumulation was in evidence, both during growth on complex media and during growth on chemically defined media with acetate as the sole carbon source. The major pathway of terminal respiration in aerobically growing microorganisms appea...

The budding yeast Saccharomyces cerevisiae is a facultative aerobe that responds to changes in oxygen availability (and carbon source) by initiating a biochemically complex program that ensures that energy demands are met under two different physiological states: aerobic growth, supported by oxidative and fermentative pathways, and anaerobic growth, supported solely by fermentative processes. T...

Atomic force microscopy (AFM) was used to study the process of infection of bacterial cells by bacteriophages, for which purpose experimental protocols were elaborated. Three types of bacteriophages were characterized with AFM and transmission electron microscopy (TEM). Bacteriophage interaction with cells was studied for three bacterial hosts: Gram-negative Escherichia coli 057 and Salmonella ...

Pre- and post-extraction blood cultures were taken from 242 patients. The post-extraction ones were taken from 100 unpremedicated patients, from 42 with an erythromycin estolate cover, and from 100 patients after protection with pyrrolidino methyl tetracycline. The 100 post-extraction blood cultures from unpremedicated patients gave 64 positive results which yielded 155 strains, 88 of which wer...