Among 58 aerobic actinomycetes isolated from different sources and geographical locations, none of 23 Nocardia asteroides isolates, at 18 N. farcinica isolates, 1 of 5 N. otitidiscaviarum isolates, and 1 of 4 Rhodococcus species isolates opacified Middlebrook 7H10 medium. Within the N. asteroides complex, this characteristic, together with growth at 45 degrees C and resistance to each of erythr...

Objective. A total of 725 Listeria monocytogenes isolates, 607 from various foods and 118 from clinical cases of listeriosis, were investigated concerning their ability to form biofilms, at 4°C during 5 days and at 37°C during 24 h. Methods. Biofilm production was carried out on polystyrene tissue culture plates. Five L. monocytogenes isolates were tested for biofilm formation after being expos...

In the last decade, several studies were performed to characterise bovine viral diarrhoea virus (BVDV) isolates and define genetic groups by genotyping. Much data is now available from GenBank, predominantly sequences from the 5' untranslated region (5'-UTR). In order to find out whether genetic grouping of isolates from different countries could be harmonised, 22 new isolates from five countri...

The purpose of our study was to determine the prevalence of macrolide resistance in 3,188 pharyngeal Streptococcus pyogenes isolates collected at the Institute of Public Health of Serbia during the period 2006-2008. The disk diffusion tests were used to determine the susceptibility of the isolates. Two hundred and sixteen S. pyogenes isolates (6.8%) were resistant to erythromycin, with 9 isolat...

We have identified four new hepatitis C virus (HCV) isolates whose genomic RNA could be amplified by PCR using primers from the 5' untranslated region (UTR), but the RNA could not be detected with genotype I to IV (or types 1a, 1b, 2a and 2b respectively)-specific core region-derived primers. We compared the nucleotide sequences of the new isolates from positions 65 to 1850 (3' end of 5' UTR, C...

Acinetobacter baumannii is an opportunistic nosocomial pathogen, which is an important cause of pneumonia and bacteremia in patients in intensive care units (1). Increased resistance to all commercial antimicrobial agents, including colistin, in clinical isolates of A. baumannii has been reported (7, 12). An important factor for the development of multiresistance is the acquisition of genetic e...

Standards commonly employed to calibrate &e excludon chromrrto@raphy cdunn, usually do not t h e ” have welldefined &os. Carefully characterized spherkal solutes In the apporprlate rlze rHI(J. are therefore of condderabk Interest. The chromatographk khavlor of carboxylated starburst dendrhers-characterlzed by quaslelaatk lbht scatterlng and vkomotry-on a Super080 &e exdudon cdunnhasbnnexpbred. ...

AMMsc(Mobile agent technology has been proposed as an alternative to traditional client-server computing for personalized information retrieval by mobile and wireless users from fixed wired servers. In thk preliminary paper we develop a very simplified analytical model that examines the claimed performance benefits of mobile agents over cfient-server computing for a mobile information retrieval...

Lcs Alamoa Nafional Labaator~ an affirmatiw acticmkqual opportunity employer, is operated by the Univer4yofCatifornia fw the U.S. OeparfmantofErwgy und& cxm&actW-7405ENG-36. By acceptance of thii article, ltw pubtisfw recognizes that the U.S. Government retains a nonexclusive, royalty-tea ficenae to pubfisfr or rapmdr.rca the pubkhad farn of thii ccxrtribution, or to SNOWothers to do so, fcx U....

The population structure of Phytophthora capsici among asexual and sexual progenies was analyzed using ISSR. Thirty one parent three populations were assayed for genetic diversity 5 ISSR primers DNA from 120 offspring P. amplified. In total, 71 reproducible fragments obtained, which 100% polymorphic, revealing high polymorphism the isolates. Among them, percentages progeny isolates 100.00 77.46...