March 2014
Effect of antagonistic Rhizobacteria coinoculated with Mesorhizobium ciceris on control of fusarium wilt in chickpea (Cicer arietinum L.)
The antagonistic activity against Fusarium oxysporum f. sp. ciceris was determined for 40 chickpea rhizobacteria. Twenty eight isolates showed antagonistic activity against test fungus ranging from 18.2 to 41.8%. Characterization of the antagonistic attributes showed that all the antagonistic isolates produced diffusible and volatile antifungal metabolites in terms of growth inhibition, maximum being with the isolates...
March 2014
Accumulation of some heavy metals by metal resistant avirulent Bacillus anthracis PS2010 isolated from Egypt
The bacteria with a high growth rate were isolated from polluted industrial waste water. The bacteria Bacillus anthracis PS2010 have variable resistant to heavy metals such as Cd, Cu, Co, Zn and Pb. Out of which the minimal inhibitory concentrations were 0.6, 2.0, 0.8, 4.0 and 3.0 mM, respectively. The potent bacterium has optimal biosorption capacity raised according to the metal, incubation temperature, pH of the...
March 2014
Phylotype analysis of Ralstonia solanacearum strains causing potato bacterial wilt in Karnataka in India
Potato is one of the important cash crop of Karnataka (India) farmers and there is a tremendous scope to increase the area and productivity of this crop in the state. However, this crop is badly affected by bacterial wilt disease caused by Ralstonia solanacearum especially in Hassan, Chikmagalur and Bengaluru districts. During Kharif 2011 season, a total of fifteen bacterial strains were recovered from stem pieces of...
March 2014
Molecular typing and cytotoxicity testing of Staphylococcus aureus isolated from milk, meat and clinical sources
Staphylococcus aureus is one of the main causes of foodborne diseases and a leading cause of nosocomial infections worldwide. Eleven (11) isolates from milk; 34 from meat and 23 of clinical source were subjected to phenotypic and biochemical characterizations for confirmation and further analysis for the presence of virulent genes, clonal relatedness and cytotoxicity profile. All isolates were positive for catalase...
March 2014
Biosynthesis of thermostable α-amylase by immobilized Bacillus subtilis in batch and repeat batch cultures using fortified date syrup medium
Batch and repeat batch fermentation were performed to evaluate the potential of date syrup and immobilized cells technique for the economical production of α-amylase. The enzyme production by immobilized cells was greater than that of freely suspended cells. Khlas date syrup gave the highest enzyme yield (142.7 Uml-1) using the immobilized technique after 48 h of fermentation. The highest α-amylase...
March 2014
Characterization of epiphytic bacteria isolated from chickpea (Cicer arietinum L.) nodules
Twenty eight isolates associated with the nodule surface of two chickpea cultivars, that is, reverted non-nodulating (ICC4993NN(R)) and normal chickpea (HC5) cultivars were isolated. All of them were found to be Gram positive. The isolates NE81, NE82 from cv ICC4993NN(R) and NE1043 from cv HC5 inhibited the growth of isolates NE84, NE44, NE45, NE32, NE16-1, NE32, NE84, NE44, NE19, NE26 and NE14, NE53, NE16-2, NE18,...
March 2014
Role of QuantiFERON-TB Gold In-Tube test in detection of latent tuberculosis infection in health care contacts in Alexandria, Egypt
Tuberculosis infection represents a global health problem and a great risk to health care workers. The detection and treatment of latent tuberculosis infection is a key strategy in the control of tuberculosis. The aim of this study was to estimate the usefulness of QuantiFERON-TB Gold In-Tube test which is an interferon-gamma release assay for the detection of latent tuberculosis infection, in a group of Egyptian Health...
March 2014
Antibiotic resistant pattern of isolated bacteria from Obere River in Orile-Igbon, Oyo State, Nigeria
Good quality water must be odourless, colourless, tasteless and free from pathogens. This is adversely affected when it is polluted beyond certain limits. Potable water for domestic use should however be free of pathogenic organisms. Water samples were collected from Obere River in Orile-lgbon, Oyo state, Nigeria in order to study the antibiotic resistance pattern of isolated bacteria. The bacteria genera detected were...
March 2014
Klebsiella variicola, a nitrogen fixing activity endophytic bacterium isolated from the gut of Odontotermes formosanu
Termites play an important role in promoting agricultural ecosystem balance and the degradation of lignocelluloses, but also have caused considerable damage to agriculture, forestry and buildings. Previous studies showed that there were a lot of nitrogen-fixing bacteria in the termite gut, and up to 60% of the nitrogen in termite organs came from the nitrogen fixation of symbiotic microorganisms which lived in the...
March 2014
Pathogenicity of Staphylococcus sciuri in murine in vivo model
This study was conducted to assess the pathogenic potential of exfoliative toxin gene-positive Staphylococcus sciuri. Twenty eight eight weeks-old mice were used for the study. The animals were randomly assigned into four groups of 7 mice per group. Groups 1 and 2 were infected with 1 × 108 colony-forming unit (cfu)/ml of the organism intraperitoneally (i.p) and subcutaneously (s.c) respectively, while groups 3...
March 2014
Enhancing sustainable development through indigenous fermented food products in Nigeria
Indigenous fermented food products are mainly produced by the activities of microorganisms and their preparation remains today as a household art. Fermented food products play very important roles especially in the socio-economic aspect of people in developing countries. In Nigeria, there are large variety of fermented foods and beverages with traditional and cultural value, these fermented food products includes...
March 2014
Mode of vertical transmission of Salmonella enterica sub. enterica serovar Pullorum in chickens
The mode of vertical transmission was studied with local isolate of Salmonella pullorum in hens and cocks. Twenty (20) hens and five cocks were experimentally infected by the oral route with 2 × 107 (CFU) dose of S. pullorum organisms at 21 weeks of age in hens and 29 weeks in cocks and in control (20 hens and five cocks) no bacteria was given. The used methods were reisolation of S. pullorum from different...
March 2014
Proximate composition, antinutritional contents and physicochemical properties of breadfruit (Treculia africana) and cowpea (Vigna unguiculata) flour blends fermented with Lactobacillus plantarum
This study investigates proximate composition, antinutritional contents and physicochemical properties of breadfruit (Treculia africana) and cowpea (Vigna unguiculata) flour blends fermented with pure strains Lactobacillus plantarum (FO-12) for the purpose of developing weaning food for the management of protein-energy malnutrition (PEM). Breadfruit and cowpea flour blends were prepared in various ratios and then...
March 2014
Comparison of diagnostic methods for bacterial vaginosis
Bacterial vaginosis is a disease affecting many women all over the world, being asymptomatic or symptomatic and producing obstetric and gynaecological complications. The aim of this study was to compare three methods for the diagnosis of bacterial vaginosis. For this cross-sectional descriptive study, vaginal swabs from 101 women attending Máximo Gómez Clinic in Holguín, Cuba, from April to May 2011...
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