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International Journal of Microbiology

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https://www.readbyqxmd.com/read/28197207/maize-fungal-growth-control-with-scopoletin-of-cassava-roots-produced-in-benin
#1
Rafiatou Ba, Teou Alfa, Fernand Gbaguidi, Kosi Mawuéna Novidzro, Kokouvi Dotse, Koffi Koudouvo, Ursula Houngue, Marcel T Donou Hounsode, Kossi Honoré Koumaglo, Yaovi Ameyapoh, Lamine Baba-Moussa
The chemical contamination of food is among the main public health issues in developing countries. With a view to find new natural bioactive products against fungi responsible for chemical contamination of staple food such as maize, the antifungal activity tests of scopoletin extracted from different components of the cassava root produced in Benin were carried out. The dosage of scopoletin from parts of the root (first skin, second skin, whole root, and flesh) was done by High Performance Liquid Chromatography...
2017: International Journal of Microbiology
https://www.readbyqxmd.com/read/28154578/growth-on-alpha-ketoglutarate-increases-oxidative-stress-resistance-in-the-yeast-saccharomyces-cerevisiae
#2
Maria Bayliak, Nadia Burdyliuk, Volodymyr Lushchak
Alpha-ketoglutarate (AKG) is an important intermediate in cell metabolism, linking anabolic and catabolic processes. The effect of exogenous AKG on stress resistance in S. cerevisiae cells was studied. The growth on AKG increased resistance of yeast cells to stresses, but the effects depended on AKG concentration and type of stressor. Wild-type yeast cells grown on AKG were more resistant to hydrogen peroxide, menadione, and transition metal ions (Fe(2+) and Cu(2+)) but not to ethanol and heat stress as compared with control ones...
2017: International Journal of Microbiology
https://www.readbyqxmd.com/read/28133483/assessment-of-resistance-and-bioremediation-ability-of-lactobacillus-strains-to-lead-and-cadmium
#3
Anna V Kirillova, Anna A Danilushkina, Denis S Irisov, Nataliya L Bruslik, Rawil F Fakhrullin, Yuri A Zakharov, Vladimir S Bukhmin, Dina R Yarullina
Cadmium (Cd) and lead (Pb) are heavy metals, important environmental pollutants, and potent toxicants to organism. Lactic acid bacteria (LAB) have been reported to remove Cd and Pb from solutions and therefore represent a useful tool for decontamination of food and beverages from heavy metals. Heavy metal ion binding by LAB was reported as metabolism-independent surface process. In this work ten Lactobacillus strains were investigated with respect to hydrophobicity, Lewis acid-base, and electrostatic properties of their outer cell surface in order to characterize their Cd and Pb removal capacity...
2017: International Journal of Microbiology
https://www.readbyqxmd.com/read/28127308/antifungal-activity-of-essential-oil-of-eucalyptus-camaldulensis-dehnh-against-selected-fusarium-spp
#4
Martin Muthee Gakuubi, Angeline W Maina, John M Wagacha
The objective of this study was to evaluate the antifungal activity of essential oil (EO) of Eucalyptus camaldulensis Dehnh. against five Fusarium spp. commonly associated with maize. The essential oil had been extracted by steam distillation in a modified Clevenger-type apparatus from leaves of E. camaldulensis and their chemical composition characterized by gas chromatography mass spectrometry. Poisoned food technique was used to determine the percentage inhibition of mycelial growth, minimum inhibitory concentration, and minimum fungicidal concentration of the EO on the test pathogens...
2017: International Journal of Microbiology
https://www.readbyqxmd.com/read/28115936/the-bacteriomes-of-ileal-mucosa-and-cecal-content-of-broiler-chickens-and-turkeys-as-revealed-by-metagenomic-analysis
#5
Shan Wei, Michael Lilburn, Zhongtang Yu
The gastrointestinal (GI) bacteriome of poultry is important in host nutrition and health, but its diversity and composition remain poorly characterized. In this study we phylogenetically characterized the bacteriome in the cecal contents and ileal mucosa of chickens and turkeys using metagenomics empowered by pyrosequencing technique. >95% coverage of bacterial diversity was achieved except for the turkey ileal mucosa. Collectively, 3,401 and 125 operational taxonomy units (OTU, defined at a 0.03 phylogenetic distance) in chicken, and 1,687 and 16 OTUs in turkey were identified from the cecal content and the ileal mucosa, respectively...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/28101105/oral-administration-of-lactobacillus-plantarum-299v-reduces-cortisol-levels-in-human-saliva-during-examination-induced-stress-a-randomized-double-blind-controlled-trial
#6
Hannah Andersson, Cecilia Tullberg, Siv Ahrné, Kristina Hamberg, Irini Lazou Ahrén, Göran Molin, Mikael Sonesson, Åsa Håkansson
Objective. To clarify the effect of Lactobacillus plantarum 299v on the salivary cortisol and salivary IgA levels in young adults under examination stress. Design. Forty-one students with an upcoming academic exam were included in a randomized double-blind, placebo-controlled study. The probiotic bacteria or the placebo product was administered in capsules once a day during 14 days. Saliva was collected and a perceived stress test was filled out at each sampling occasion. Saliva was collected for cortisol analysis by Electrochemiluminescence Immunoassay (ECLI) and salivary IgA was analysed by Enzyme-Linked Immunosorbent Assay (ELISA)...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/28096816/optimization-of-the-medium-for-the-production-of-extracellular-amylase-by-the-pseudomonas-stutzeri-isl-b5-isolated-from-municipal-solid-waste
#7
Prajesh Dutta, Akash Deb, Sukanta Majumdar
The management of municipal solid waste is one of the major problems of the present world. The use of microbial enzymes for sustainable management of the solid waste is the need of the time. In the present study, we have isolated a potent amylase producing strain (ISL B5) from municipal solid waste. The strain was identified as Pseudomonas stutzeri (P. stutzeri) both biochemically and by 16S rDNA sequencing. The optimization studies revealed that the strain ISL B5 exhibited maximum activity in the liquid media containing 2% starch (2...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/28070190/susceptibility-profiles-of-mycobacterium-ulcerans-isolates-to-streptomycin-and-rifampicin-in-two-districts-of-the-eastern-region-of-ghana
#8
Enid Owusu, Mercy Jemima Newman, Nana Konama Kotey, Amos Akumwena, Elizabeth Bannerman
Background. Drug resistance is a major challenge in antibiotic chemotherapy. Assessing resistance profiles of pathogens constitutes an essential surveillance tool in the epidemiology and control of infectious diseases, including Buruli ulcer (BU) disease. With the successful definitive management of BU using rifampicin and streptomycin, little attention had been paid to monitoring emergence of resistant Mycobacterium ulcerans (M. ulcerans) isolates in endemic communities. This study investigated the susceptibility profiles of M...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/28058048/performance-of-the-who-2011-tb-symptom-screening-algorithm-for-pulmonary-tb-diagnosis-among-hiv-infected-patients-in-gondar-university-referral-hospital-ethiopia
#9
Martha Alemayehu Menberu
The new WHO 2011 guidelines on TB screening among HIV-infected individuals recommend screening using four TB symptoms (current cough, fever, weight loss, and night sweats). This study aimed to assess the performance of WHO 2011 TB symptom screening algorithm for diagnosing pulmonary TB in HIV patients and identify possible risk factors for TB. Institutional based cross-sectional study was conducted from February 2012 to November 2012. A total of 250 HIV-infected patients aged ≥18 years visiting the University of Gondar Hospital, ART clinic, were enrolled...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/28058047/effect-of-trehalose-and-trehalose-transport-on-the-tolerance-of-clostridium-perfringens-to-environmental-stress-in-a-wild-type-strain-and-its-fluoroquinolone-resistant-mutant
#10
Miseon Park, Wilfrid J Mitchell, Fatemeh Rafii
Trehalose has been shown to protect bacterial cells from environmental stress. Its uptake and osmoprotective effect in Clostridium perfringens were investigated by comparing wild type C. perfringens ATCC 13124 with a fluoroquinolone- (gatifloxacin-) resistant mutant. In a chemically defined medium, trehalose and sucrose supported the growth of the wild type but not that of the mutant. Microarray data and qRT-PCR showed that putative genes for the phosphorylation and transport of sucrose and trehalose (via phosphoenolpyruvate-dependent phosphotransferase systems, PTS) and some regulatory genes were downregulated in the mutant...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/28044080/detection-of-anti-leptospira-igm-antibody-in-serum-samples-of-suspected-patients-visiting-national-public-health-laboratory-teku-kathmandu
#11
Krishna Prasad Dahal, Supriya Sharma, Jeevan Bahadur Sherchand, Bishnu Prasad Upadhyay, Dwij Raj Bhatta
Leptospirosis is a globally distributed zoonosis with varied clinical outcomes and multiorgan involvement in humans. In this study conducted from July 2011 to December 2011, 178 serum samples from patients suspected of leptospirosis were tested by Panbio IgM ELISA at National Public Health Laboratory, Kathmandu, out of which 51 (28.65%) were positive for anti-Leptospira IgM antibody. Leptospirosis was more common in people in their 2nd and 3rd decades of their life which together comprised 56.86% of the total positive cases...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/27872643/antibiotic-susceptibility-patterns-of-bacterial-isolates-from-pus-samples-in-a-tertiary-care-hospital-of-punjab-india
#12
Rugira Trojan, Lovely Razdan, Nasib Singh
We determined the prevalence and antibiotic susceptibilities patterns of bacterial isolates from pus samples collected from patients in a tertiary care hospital of Punjab, India. E. coli was the most prevalent pathogen (51.2%) followed by Staphylococcus aureus (21%), Klebsiella pneumoniae (11.6%), Pseudomonas aeruginosa (5.8%), Citrobacter spp. (3.5%), Acinetobacter baumannii (2.3%), Proteus mirabilis (2.3%), and Streptococcus spp. (2.3%). E. coli, K. pneumoniae, A. baumannii, and Citrobacter isolates were resistant to multiple antibiotics including higher generation cephalosporins...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/27829836/audit-of-helicobacter-pylori-testing-in-microbiology-laboratories-in-england-to-inform-compliance-with-nice-guidance-and-the-feasibility-of-routine-antimicrobial-resistance-surveillance
#13
Rosalie Allison, Donna M Lecky, Megan Bull, Kim Turner, Gauri Godbole, Cliodna A M McNulty
Introduction. The National Institute for Health and Clinical Excellence (NICE) guidance recommends that dyspeptic patients are tested for Helicobacter pylori using a urea breath test, stool antigen test, or serology. Antibiotic resistance in H. pylori is globally increasing, but treatment in England is rarely guided by susceptibility testing or surveillance. Aims. To determine compliance of microbiology laboratories in England with NICE guidance and whether laboratories perform culture and antibiotic susceptibility testing (AST)...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/27795709/biological-characteristics-and-antimicrobial-activity-of-endophytic-streptomyces-sp-tqr12-4-isolated-from-elite-citrus-nobilis-cultivar-ham-yen-of-vietnam
#14
Phan Thi Hong-Thao, Nguyen Vu Mai-Linh, Nguyen Thi Hong-Lien, Nguyen Van Hieu
Ham Yen orange (Citrus nobilis Lour) is the highly valuable commercial fruit of Vietnam. With the blooming of fruit production and farming area, this specialty crop is facing threats from several serious diseases; therefore the search for new effective biocontrollers is required to prevent the existing excessive use of fertilizers and plant protection chemicals. Endophytic actinomycetes are of great scientific interest due to their high potential of application in agriculture and pharmaceutical research. In this work, endophytic actinomycetes were isolated from a native orange species of Northeast mountainous province Tuyen Quang...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/27746817/antibiotic-resistance-of-diverse-bacteria-from-aquaculture-in-borneo
#15
M M Kathleen, L Samuel, C Felecia, E L Reagan, A Kasing, M Lesley, S C Toh
The administration of antimicrobials in aquaculture provides a selective pressure creating a reservoir of multiple resistant bacteria in the cultured fish and shrimps as well as the aquaculture environment. The objective of this study was to determine the extent of antibiotic resistance in aquaculture products and aquaculture's surrounding environment in Sarawak, Malaysian Borneo. Ninety-four identified bacterial isolates constituted of 17 genera were isolated from sediment, water, and cultured organisms (fish and shrimp) in selected aquaculture farms...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/27725834/impact-of-some-ecological-factors-on-fecal-contamination-of-drinking-water-by-diarrheagenic-antibiotic-resistant-escherichia-coli-in-zagazig-city-egypt
#16
Ahmed Elsadek Fakhr, Maha Kamal Gohar, Amal Hassan Atta
Fecal contamination of drinking water is a major health problem which accounts for many cases of diarrhea mainly in infants and foreigners. This contamination is a complex interaction of many parameters. Antibiotic resistance among bacterial isolates complicates the problem. The study was done to identify fecal contamination of drinking water by Diarrheagenic Antibiotic-Resistant Escherichia coli in Zagazig city and to trace reasons for such contamination, three hundred potable water samples were investigated for E...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/27721831/chemical-composition-and-antibacterial-activity-of-essential-oils-of-tagetes-minuta-asteraceae-against-selected-plant-pathogenic-bacteria
#17
Martin Muthee Gakuubi, John M Wagacha, Saifuddin F Dossaji, Wycliffe Wanzala
The objective of this study was to determine the chemical composition and antibacterial activity of essential oils (EOs) of Tagetes minuta against three phytopathogenic bacteria Pseudomonas savastanoi pv. phaseolicola, Xanthomonas axonopodis pv. phaseoli, and Xanthomonas axonopodis pv. manihotis. The essential oils were extracted using steam distillation method in a modified Clevenger-type apparatus while antibacterial activity of the EOs was evaluated by disc diffusion method. Gas chromatography coupled to mass spectrometry (GC/MS) was used for analysis of the chemical profile of the EOs...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/27703481/comment-on-bacteria-in-cancer-therapy-renaissance-of-an-old-concept
#18
COMMENT
Amin Talebi Bezmin Abadi
No abstract text is available yet for this article.
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/27688771/phosphate-solubilization-potential-of-rhizosphere-fungi-isolated-from-plants-in-jimma-zone-southwest-ethiopia
#19
Firew Elias, Delelegn Woyessa, Diriba Muleta
Phosphorus (P) is one of the major bioelements limiting agricultural production. Phosphate solubilizing fungi play a noteworthy role in increasing the bioavailability of soil phosphates for plants. The present study was aimed at isolating and characterizing phosphate solubilizing fungi from different rhizospheres using both solid and liquid Pikovskaya (PVK) medium. A total of 359 fungal isolates were obtained from 150 rhizosphere soil samples of haricot bean, faba bean, cabbage, tomato, and sugarcane. Among the isolates, 167 (46...
2016: International Journal of Microbiology
https://www.readbyqxmd.com/read/27667998/bacterial-etiology-and-antibiotic-resistance-profile-of-community-acquired-urinary-tract-infections-in-a-cameroonian-city
#20
Rolf Nyah-Tuku Nzalie, Hortense Kamga Gonsu, Sinata Koulla-Shiro
Introduction. Community-acquired urinary tract infections (CAUTIs) are usually treated empirically. Geographical variations in etiologic agents and their antibiotic sensitivity patterns are common. Knowledge of antibiotic resistance trends is important for improving evidence-based recommendations for empirical treatment of UTIs. Our aim was to determine the major bacterial etiologies of CAUTIs and their antibiotic resistance patterns in a cosmopolitan area of Cameroon for comparison with prescription practices of local physicians...
2016: International Journal of Microbiology
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