Advanced Journal of Microbiology Research

Abstract: Nearly ten isolates of Streptomyces were found to be associated with two species of sponges namely Mycale mytilorum (Annandale) and Tendania anhelans (Lieberkuhn). Among the ten isolates, four strains of white series were selected and characterized by conventional methods and assessed for their antagonistic activity against fish pathogens like Aeromonas hydrophila and Vibrio sp. All the strains showed inhibitory activity against these fish pathogens. The screening of antibacterial substances by the Streptomyces iso…

Abstract: Carvacrol, a major compound naturally present in oregano and thyme and its precursor, cymene, were tested in vitro for their antimicrobial activity against Edwardsiella tarda, a fish pathogenic bacteria causing edwardsiellosis. When used alone, carvacrol, but not cymene, inhibited the bacterium with the minimal inhibitory concentration (MIC) of 20 ppm. However, cymene was shown to be able to enhance the inhibitory ability of carvacol indicated by the reduction of MIC to 5 ppm when used with 2.5 ppm of cymene. Based…

Abstract: The study determined the job stress among primary school teachers in South-west, Nigeria. A total of 624 teachers were chosen as subjects using a multistage sampling technique, and a structure questionnaire was used to gather information from the subjects. Research hypotheses were formulated and inferential statistics of test and analysis of variance ANOVA were employed to analyze significant differences at a = 0.05 level. The differences were significant only for age and gender. Majority of the teachers have heada…

Abstract: To determine the bacterial etiology of acute middle ear infections in preschool age children. This prospective descriptive clinical study was implemented in Marmaris town between November, 2008 and May, 2009 with 80 cases. Their age ranged from 2 - 6. One fourth of the cases were preschoolers. The diagnosis of acute middle ear infection was confirmed by an otolaryngologist following a pediatrician and paracentesis that was performed. Bacterial culture was done in regular conditions and antibacterial resistance was…

Abstract: Individual-based modelling (IbM) has become a fully incorporated part of predictive microbiology methodologies in the last decade. Previous studies of bacterial culture growth cycle with the IbM simulator INDISIM analysed the evolution of bacterial biomass distribution during the different phases of growth. The predicted forward shift during lag, stability during exponential and backward shift when entering the stationary phase have been experimentally observed in an Escherichia coli batch culture by means of flow…

Abstract: Oropharyngeal candidiasis (OPC) is the most common HIV related oral lesion. Most patients are infected with a strain originally present as a commensal of the oral cavity. The resistance of Candida isolates to antifungal drugs is important due to morbidity and mortality. The aim of our study was to investigate the antifungal susceptibility profiles of oral Candida spp which were isolated from HIV-infected patients. In vitro susceptibility tests were performed using the broth microdilution method recommended by the C…

Abstract: With a view to exploring whether there was a correlation between a novel antibiotic and a plasmid, the plasmid was eliminated by SDS. Because the elimination of the plasmid had no effect on the bacterium’s producing antibiotic, it was determined that the plasmid had nothing to do with the antibiotic. However, with the plasmid being eliminated, the ability of the bacterium to secrete a kind of adhesive substance was lost, and the phenotype of the bacterium was also changed. This indicated that the plasmid was closel…

Abstract: In this research study, three samples were collected from the T.S. Murthi Udhyan, Obedullahganj out of which two samples were from agriculture field soil and the third sample was from compost. Pure cultures of bacteria were isolated by using serial dilution and spread plate methods. The isolated bacterial cultures were separated according to the morphotypes and then bio-chemically tested. They were further identified with the help of bacteria identification program (PIBWin 2007). The identified bacterial cultures a…

Abstract: The aim was to identify the factors affecting synonymous codon usage bias in the newly discovered gC gene of duck plague virus (DPV) CHv strain and a comparative analysis of the codon usage bias in the gC genes of 27 other reference herpesviruses was performed by using CAI, CHIPS and CUSP program of EMBOSS. The results showed that base composition, mutational bias and natural selection were the major determinants of the codon usage variation in the DPV gC gene. The primary codon usage trends in the DPV gC gene show…

Abstract: Mastitis is one of the common diseases of dairy cattle and an inflammatory response of the mammary glands tissue. Mastitis causes considerable loss to the dairy industry. Among several bacterial pathogens that can cause mastitis, S. aureus is probably the most lethal agent because it causes chronic and deep infection in the mammary glands that is extremely difficult to be cured. The present study was to detect agr group genes in the S. aureus isolated from 360 mastitis milk samples in Chaharmahel va Bakhtiari and I…

Abstract: Helicobacter pylori induces chronic gastritis, the strongest known risk factor for peptic ulcer disease, distal gastric cancer and a number of extra gastric related morbidity. More than 50% of the world’s population is infected with this organism lifelong without effective bacterial eradication. Clinical sequelae are dependent upon bacterial virulence factors and host genetic diversity, particularly within immune response genes. The organism is able to evade the harsh acidic environment in the gastric mucosa and ho…

Abstract: Fresh visually healthy seeds of Zea mays (maize), Cucumeropsis mannii (melon) and Phaseolus vulgaris (bean) were stored under three conditions, wood ash of some tropical forest trees in Nigeria namely; Khaya grandifoliola, Nauclea diderrichii, Piptadeniastrum africanum, Mangifera indica, Mansonia altissima, Triplochiton scleroxylon, Ceiba pentandra, Terminalias superba, Terminalia ivorensis). Seeds treated with benlate, an orthodox fungicide and seeds without any treatment to serve as the control of the experiment…

Abstract: Three strains of Escherichia coli 0157:H7 and eleven strains of Listeria monocytogenes isolated from West African wara cheese were analysed for cellulose production, fimbriae formation, zetapotential and biofilm formation which are of relevance in food processing. E. coli c produced no fimbria, very low cellulose and significantly lower zetapotential (-3.1) among the three strains. The L. monocytogenes (b) had the highest zetapotential (-39.1) and cellulose production at 24 h of incubation. Next to it was L. monocy…

Abstract: Currently, a pandemic swine influenza A virus infection causes a huge negative impact on human beings all over the world. However, the methods of treatment are not satisfactory, therefore it is urgent for us to set up new theory and practice to fight against the intractable virus. Terminalia chebula Retz, as a kind of traditional Chinese medicine, widely distributes and has multiple pharmacological effects. Evidences in laboratory and clinic practice confirm us to the potential of Terminalia chebula Retz inhibiting…

Abstract: Staphylococci are important organisms involved in many infections, including bacteremia or septicemia. Repetitive sequence–based PCR (rep-PCR) is a useful method for detection of staphylococcal DNA fingerprint patterns, especially when the origins of these organisms are unknown. Staphylococcal positive blood cultures were collected from patients with bacteremia hospitalized in four hospitals. The patients who had two positive blood cultures out of three samples were considered as subjects. After isolation of staphy…