February 2011
Bacteriocinogenic activity of Enterococcus faecalis strains from chouriço, traditional sausage produced in Southern Portugal
Enterococcus faecalis isolates from chourico (traditional Portugal fermented sausage) were studied here with the main impact on bacteriocin production. In bacteriocin- producing strains phenotypic antibiotic profile was tested to check if they are sensitive or resistant. Lactic acid production ranged from 0.581 mmol/L up to 0.783 mmo/L. Enterococci grew sufficiently in the medium with 1%...
January 2011
Evaluation of the efficacy of endophytic Bacillus amyloliquefaciens against Botryosphaeria dothidea and other phytopathogenic microorganisms
Endophytic bacteria were isolated from poplar trees in Shandong province, China, wherecanker disease caused by Botryosphaeria dothidea has reached epidemic proportions. On the basis of the results of classical bacteriological tests and sequence analysis of the16S rRNA gene, the PEBA20 strain isolated from poplar was identified as a strain ofBacillus...
February 2011
Identification of volatile compounds released by myxobacteria Sorangium cellulosum AHB103-1
Secondary metabolite ethyl acetate extract (EAME) produced by Sorangium cellulosumAHB103-1 had good antitumor bioactivity. The results of MTT assay showed that IC50value of EAME on human liver cancer cell line (HepG2), mouse melanoma cell line (B16), human breast cancer cell line (MDA-MB231) and human gastric cancer cells (SGC7901) were 5.29, 1.43, 8.77, 6.21 µg/ml respectively. Moreover, the...
February 2011
Synthesis and characterization of methyl methaacrylate and 2- methaacrylate and their application on pigment printing textile fabrics
This paper was reported the synthesis and characterization of two samples of styrene – acrylic emulsion copolymers. It was performed in the presence of acrylic- acid, acryl amid, ammonium persulfate as a free radical initiator and sodium dodecyl benzene sulfate as an anionic emulsifier at 80°C. Thereafter, styrene –acrylate copolymers thus synthesized were subjected to characterization by...
February 2011
The response of ectomycorrhizal (ECM) fungi under water stress induced by polyethylene glycol (PEG) 6000
The growth models, diameter growth rates and biomass yield of three ectomycorrhizal (ECM) fungi, Suillus tomentosus (Kauff.) Sing. Snell and Dick, Suillus laricinus (Berk.in Hook.) O. Kuntze and Aminita vaginata (Bull.: Fr.) Vitt., were investigated under water stress induced by polyethylene glycol-6000 (PEG-6000) in pure culture. The results showed that the growth...
February 2011
PCR-based detection of mcy genes in blooms of Microcystis and extracellular DNA of pond water
Microcystin from Microcystis aeruginosa is the most widely studied hepatotoxin which is synthesized by the ~55-kb microcystin synthetase (mcy) gene cluster. In this study, employing polymerase chain reaction (PCR) amplification of six genes of the mcy genes cluster (mcyA, mcyB, mcyC, mcyD, mcyE and mcyG), the presence of the toxic...
February 2011
The effect of red ginger (Zingiber officinale Roscoe) extract on the growth of mastitis causing bacterial isolates
Red ginger (Zingiber officinale Roscoe) a well known herb that was widely used as a remedy for various ailments in traditional medicine, belonged to the Zingiberaceae family. The red ginger had antibacterial properties. In the face of increasing bacterial resistance to various antibiotics and continuous efforts to look for new and safer antibacterial...
February 2011
The presence of Campylobacter jejuni in broiler houses: Results of a longitudinal study
In this study, the presence of Campylobacter jejuni in water lines of commercial broiler house and its role in the epidemiology of the infection of broiler flocks was investigated.The study was done in three sequential commercial broiler flocks previously known to be infected with C. jejuni in two poultry houses with different water sources. C. jejuni was identified in...
February 2011
Interaction of Mycobacterium tuberculosis MPB64 protein with heat shock protein 40
The MPB64 protein of Mycobacterium tuberculosis (M.tb) is an important structural and functional protein, which has been known to be involved in the virulence, pathogenesis as well as proliferation of the pathogen, however, how MPB64 protein interaction with host protein is still unclear. To identify cellular proteins that interact with the MPB64 protein and to elucidate the possible...
February 2011
Effect of Tai Chi and Shaoling quan exercise on youngsters’ body weight, height and beneficial flora in digestive tract
Tai Chi has been widely practiced in China as a martial art and as a form of exercise. Shaoling quan can protect practicers against others’ aggression, and help practicers’ body remain more healthy and strong. In this study, 78 youngsters aged 10 years are divided into three groups: Control, Tai Chi and Shaoling quan. After 10 months of exercise, it could be found that Tai Chi and Shaoling quan...
February 2011
Effects of heavy metal resistant soil microbes inoculation and soil Cd concentration on growth and metal uptake of millet, couch grass and alfalfa
Effects of cadmium (Cd) concentration and inoculation of heavy metal-resistant soil microbes on plant growth and Cd-accumulation by millet (Pennisetum glaucum), alfalfa (Medicago sativa) and couch grass (Triticum repens) were studied. A soil sample (Soil 1) was spiked with different (0 to 100 mg kg-1) concentrations of Cd and incubated under periodic wetting-drying (WD) cycles for near seven months...
February 2011
Partial purification and characterization of two bacteriocin-like inhibitory substances produced by bifidobacteria
Bifidobacterium spp. RBL 68 and RBL 85 isolated from newborn faeces were found to produce two bacteriocin-like inhibitory substances (BLIS) with inhibitory activities against a wide range of Gram- positive and Gram-negative bacteria. The production of these BLIS began in late exponential phase of growth and reached a maximum activity during and after the stationary phase. An activity level of...
February 2011
Allelopathic effects of Artemisia princeps and Launae sonchoids on rhizospheric fungi and wheat growth
The allelopathic effect of Artemisia princeps L. and Launae sonchoids L. from Taif Governorate, Saudi Arabia was measured in terms of germination rate and radicle length of a bread wheat variety ‘Ariana’ (Triticum aestivum L.). Diluted extracts of shoot systems were applied to seeds of the test plant. The allelopathy of A. princeps and L....
February 2011
Tomato (Solanum lycopersicum L.) seedling growth and development as influenced by Trichoderma harzianum and arbuscular mycorrhizal fungi
Recent trends in soil microbiology suggest that certain soil microbes have a positive effect on seedling growth and development. A study was conducted to investigate the interactive effect of the plant-growth promoting fungi Trichoderma harzianum and the arbuscular mycorrhizal fungi (AMF) in growth and development of tomato (Solanun lycopersicum) seedlings grown under greenhouse conditions. A 3...
February 2011
Evaluation of methicillin resistance Staphylococcus aureus isolated from patients in Golestan province-north of Iran
Methicillin resistant Staphylococcus aureus (MRSA) is a main cause of nosocomial infections with consequence of increasing hospitalization, costs of treatment and rate of mortality. This study was aimed to demonstrate distribution of MRSA strains and their antibiotic resistance pattern. In this descriptive study, 185 clinical isolates of S. aureus that were collected from different...
February 2011
Transcriptomic profiles in a geminivirus-resistant accession of Capsicum chinense during single and mixed infection with geminiviruses
Transcriptomic studies on interaction between a geminivirus-resistant pepper accession (Capsicum chinense BG-3821) and either single or mixed infections by geminiviruses were evaluated by the method of subtractive suppressive hybridization (SSH). With a combination of SSH and DNA array hybridization techniques, around 250 ESTs including several up-regulated genes in the plant in single or mixed...
February 2011
Isolation and identification of some fruit spoilage fungi: Screening of plant cell wall degrading enzymes
This study investigates the current spoilage fruit fungi and their plant cell wall degrading enzymes of various fresh postharvest fruits sold in Jeddah city and share in establishment of a fungal profile of fruits. Ten fruit spoilage fungi were isolated and identified as followsFusarium oxysporum (banana and grape), Aspergillus japonicus (pokhara and apricot),Aspergillus...
February 2011
Recombinant matrix extracellular phosphoglycoprotein (MEPE) can promote mineralization in vitro
The matrix extracellular phosphoglycoprotein (MEPE) gene is highly expressed in tumors that cause oncogenic hypophosphatemic osteomalacia (OHO). MEPE is also known as one of the bone-tooth matrix proteins and is associated with bone and teeth mineralization. We developed a rabbit polyclonal antibody directed against recombinant human MEPE after cloning its cDNA from the cDNA library of a human brain cDNA...
February 2011
Microbiological investigation of stool in patients with acute diarrhea
Acute gastroenteritis is an important health public issue especially in developing countries. The aim of this study was to determine the most common microbial agents responsible for acute diarrheas in our city. The study was performed prospectively between December 2005 and January 2006 in Manisa, Turkey. Stool samples were collected from patients with acute diarrhea who attended to different hospitals of the city...
February 2011
An epidemiological survey on investigation of tick infestation in cattle at Chittagong District, Bangladesh
Epidemiology of tick infestations was studied in cattle at different upazila of Chittagong District from November, 2008 to May, 2009 to know the prevalence of ticks in relation to age, sex, breed, management of cattle, seasons of the year, topography of the area and different body parts of the host. A total number of 380 cattle were examined, of which 138 (36.31%) cattle were found infested. Three species of...
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