This study was conducted to generate microorganisms isolated from cultures of ears taken from the patients diagnosed to have chronic otitis media and determine and compare the in vitro effects of different antibiotics on these microorganisms. Between June 2009 and October 2010, 127 ear cultures were taken from 100 patients who applied to the Department of Otolaryngology of Ataturk University Fa...

Anaerobic microorganisms play key roles in the biogeochemical cycling of methane and non-methane alkanes. To date, there appear to be at least three proposed mechanisms of anaerobic methane oxidation (AOM). The first pathway is mediated by consortia of archaeal anaerobic methane oxidizers and sulfate-reducing bacteria (SRB) via "reverse methanogenesis" and is catalyzed by a homolog of methyl-co...

Benzene is a widespread and toxic contaminant. The fate of benzene in contaminated aquifers seems to be primarily controlled by the abundance of oxygen: benzene is aerobically degraded at high rates by ubiquitous microorganisms, and the oxygen-dependent pathways for its breakdown were elucidated more than 50 years ago. In contrast, benzene was thought to be persistent under anoxic conditions un...

The minimal inhibitory concentrations of Rodogyl (composite tablet of metronidazole and spiramycin), metronidazole-spiramycin mixture, spiramycin, metronidazole, and tetracycline were determined for selected putative periodontopathic microorganisms. Rodogyl was active against almost all strains, including Bacteroides species and the anaerobic spirochetes. Synergism of the component drugs in the...

In a collaborative study at three university hospitals, the recovery of microorganisms and the speed of detection of microbial growth by the BacT/Alert (Organon Teknika Corporation, Durham, N.C.) and BACTEC 660/730 (Becton-Dickinson Diagnostic Instrument Systems, Sparks, Md.) nonradiometric blood culture systems were compared. A total of 5,918 comparisons were made between BacT/Alert aerobic an...

BACKGROUND Petroleum reservoirs have long been known as the hosts of extremophilic microorganisms. Some of these microorganisms are known for their potential biotechnological applications, particularly production of extra and intracellular polymers and enzymes. OBJECTIVES Here, 14 petroleum liquid samples from southern Iranian oil reservoirs were screened for presence of biosurfactant-produci...

Microbial fuel cells (MFC) are a promising technology for sustainable production of alternative energy and waste treatment. A microbial fuel cell transformation chemical energy in the chemical bonds in organic compounds to electrical energy through catalytic reactions of microorganisms under anaerobic conditions. It has been known for many years that it is possible to generate electricity direc...

Anaerobic digestion requires a balanced availability of micro-nutrients with ideal growth conditions to reach optimal organic degradation and biogas production. Iron is the most abundant of the essential metals in an anaerobic digester and its mobility has a strong impact on microorganisms through its own bioavailability, but also through its influence on the bioavailability of other metals. Mo...

The Bacillus genus is a heterogeneous group of Gram-positive, facultative anaerobic, endospore-forming bacteria spread into the environment, even though soil is generally accepted as its natural reservoir. The ability to produce endospores allows Bacillus to withstand extreme environmental conditions as those occurring in food processing. Bacillus spp., particularly B. subtilis, are usually fou...

The ability to directly release 5 aerobic and 5 anaerobic bacterial strains from 3 swab transport systems was evaluated by a time zero roll-plate method. The Copan ESwab (Copan Diagnostics, Murrieta, CA), a new nylon-flocked swab with Amies liquid medium, yielded greater organism release and recovered approximately 10-fold more microorganisms than the Becton Dickinson (Sparks, MD) CultureSwab M...