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International Journal of Microbiology

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https://www.readbyqxmd.com/read/30008748/modification-of-medium-composition-for-enhancing-the-production-of-antifungal-activity-from-xenorhabdus-stockiae-pb09-by-using-response-surface-methodology
#1
Chirayu Sa-Uth, Paweena Rattanasena, Angsumarn Chandrapatya, Prapassorn Bussaman
Xenorhabdus stockiae PB09 bacterium has been shown to exhibit antifungal activity against several plant pathogens. To improve its efficacy, the optimization of the nutritional components in culture media was performed. The medium components that have significant effects on antifungal activity of X. stockiae PB09 were initially identified using a fractional factorial design. Response surface methodology and central composite design were then used to create a model for optimizing the levels of carbon, nitrogen, and mineral sources that maximize antifungal activity of X...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29977300/retracted-prevalence-of-bacteriuria-and-antimicrobial-susceptibility-patterns-among-diabetic-and-nondiabetic-patients-attending-at-debre-tabor-hospital-northwest-ethiopia
#2
International Journal Of Microbiology
[This retracts the article DOI: 10.1155/2017/5809494.].
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29977299/patterns-of-change-in-metabolic-capabilities-of-sediment-microbial-communities-in-river-and-lake-ecosystems
#3
Adam Oest, Ali Alsaffar, Mitchell Fenner, Dominic Azzopardi, Sonia M Tiquia-Arashiro
Information on the biodegradation potential of lake and river microbial communities is essential for watershed management. The water draining into the lake ecosystems often carries a significant amount of suspended sediments, which are transported by rivers and streams from the local drainage basin. The organic carbon processing in the sediments is executed by heterotrophic microbial communities, whose activities may vary spatially and temporally. Thus, to capture and apprehend some of these variabilities in the sediments, we sampled six sites: three from the Saint Clair River (SC1, SC2, and SC3) and three from Lake Saint Clair in the spring, summer, fall, and winter of 2016...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29955230/comparison-of-the-antimicrobial-efficacy-of-various-contact-lens-solutions-to-inhibit-the-growth-of-pseudomonas-aeruginosa-and-staphylococcus-aureus
#4
B Laxmi Narayana, Pooja Rao, Sevitha Bhat, K Vidyalakshmi
Soft contact lenses provide perfect conditions for the breeding of pathogens. The study is a prospective, experimental study, conducted to know the antimicrobial ability of multipurpose contact lens solution against standard strains of Staphylococcus aureus and Pseudomonas aeruginosa by the stand-alone test. The test method is based on the procedures in the ISO 14729 standard primary stand-alone test. Three multipurpose contact lens care solutions commercially available in Mangalore markets, namely, Biotrue (Bausch & Lomb), Opti-Free Replenish (Alcon), and Aquasoft (Stericon Pharma), were tested for its antimicrobial effect in the microbiology lab at Kasturba Medical College, Mangalore...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29951097/genomic-variability-among-field-isolates-and-laboratory-adapted-strains-of-leptospira-borgpetersenii-serovar-hardjo
#5
Alejandro Llanes, Carlos Mario Restrepo, Pablo Riesgo-Ferreiro, Sreekumari Rajeev
Leptospira borgpetersenii serovar Hardjo colonizes cattle kidneys and may occasionally infect humans and other mammals. Strains belonging to two clonal subtypes (types A and B) with marked differences in their pathogenicity in the hamster experimental model have been described for this serovar. Such differences have been attributed to point mutations in individual genes, although those genes have not yet been characterized. In order to better understand genetic variability among L. borgpetersenii serovar Hardjo isolates, we sequenced and compared the genomes of two laboratory-adapted strains and three abattoir-derived field isolates of L...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29887890/molecular-characterization-of-methicillin-resistant-staphylococcus-aureus-isolates-isolated-from-a-burn-hospital-in-southwest-iran-in-2006-and-2014
#6
Ehsanollah Ghaznavi-Rad, Alireza Ekrami
Objectives: Incidence of methicillin-resistant Staphylococcus aureus (MRSA) is increasing every year, especially in burn patients with a high rate of morbidity and mortality. Molecular and epidemiologic studies are useful practices for understanding the relatedness of isolates in a single patient or a hospital. This study aimed at determining molecular characterizations of isolates collected in 2006 and 2014 using S. aureus -specific staphylococcal protein A (Spa) typing and Multilocus Sequence Typing (MLST) methods...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29861733/surfaces-and-air-bacteriology-of-selected-wards-at-a-referral-hospital-northwest-ethiopia-a-cross-sectional-study
#7
Hailu Getachew, Awoke Derbie, Daniel Mekonnen
Background: The hospital environment is a source of medically important pathogens that are mostly multidrug resistant (MDR) and posing a major therapeutic challenge. The aim of this study was to assess the surface and air bacteriology of selected wards at Felege Hiwot Referral Hospital (FHRH), Northwest Ethiopia. Methods: A cross-sectional study was carried out from 15th February to 30th April 2017. A total of 356 surface and air samples were collected from selected wards using 5% sheep blood agar (Oxoid, UK) and processed at FHRH microbiology laboratory following the standard bacteriological procedures...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29853902/production-of-biosurfactants-by-soil-fungi-isolated-from-the-amazon-forest
#8
Hellen Holanda Sena, Michele Alves Sanches, Diego Fernando Silva Rocha, Walter Oliva Pinto Filho Segundo, Érica Simplício de Souza, João Vicente Braga de Souza
Biosurfactants are surface-active compounds that have sparked interest in recent years because of their environmental advantages over conventional surfactants. The aim of this study was to investigate the production of biosurfactants by soil fungi isolated from the Amazon forest. Fungi colonies were isolated from soil samples and screened for biosurfactant production in submerged fermentation. In addition, the influences of bioprocess factors (carbon source, nitrogen source, pH, and fermentation time) were investigated...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29853901/epidemiological-survey-of-rotaviruses-responsible-for-infantile-diarrhea-by-the-immunomolecular-technique-in-cotonou-benin-west-africa
#9
Jijoho Mischaël Michel Agbla, Annick Capo-Chichi, Alidéhou Jerrold Agbankpé, Tamègnon Victorien Dougnon, Anges William M Yadouleton, Olivia Houngbégnon, Clément Glele-Kakai, George Enyimah Armah, Honoré Bankolé
Rotavirus remains the main causative agent of gastroenteritis in young children, in countries that have not yet introduced the vaccine. Benin, in order to implement the WHO recommendations, projects to introduce the rotavirus vaccine in 2018 as part of its Expanded Program on Immunization. But before the introduction of this vaccine, epidemiological data on rotavirus infections and rotavirus genotypes circulating in Benin should be available. The aim of this study is to generate epidemiological data on infantile rotavirus diarrhea in Benin...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29849648/brown-rot-type-fungal-decomposition-of-sorghum-bagasse-variable-success-and-mechanistic-implications
#10
Gerald N Presley, Bongani K Ndimba, Jonathan S Schilling
Sweet sorghum is a promising crop for a warming, drying African climate, and basic information is lacking on conversion pathways for its lignocellulosic residues (bagasse). Brown rot wood-decomposer fungi use carbohydrate-selective pathways that, when assessed on sorghum, a grass substrate, can yield information relevant to both plant biomass conversion and fungal biology. In testing sorghum decomposition by brown rot fungi ( Gloeophyllum trabeum , Serpula lacrymans ), we found that G. trabeum readily degraded sorghum, removing xylan prior to removing glucan...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29849647/prevalence-of-helicobacter-pylori-caga-and-icea-genes-and-their-association-with-gastrointestinal-diseases
#11
Ashwak M F Abu-Taleb, Randa S Abdelattef, Amina A Abdel-Hady, Farida H Omran, Lobna A El-Korashi, Hoda Abdel-Aziz El-Hady, Ahmed M El-Gebaly
H. pylori infection causes peptic ulcer, chronic gastritis, mucosa-associated lymphoid tissue lymphoma, and gastric carcinoma. It has several virulence factors such as cytotoxin-associated gene A( cagA ) and the induced by contact with epithelium antigen ( iceA ). We aimed to explore the relationship between cagA and iceA of H. pylori and gastrointestinal diseases. One hundred and eighteen patients who attended Gastrointestinal Endoscopy Unit at Zagazig University Hospitals, Egypt, were included in this study...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29849646/illumina-miseq-sequencing-for-preliminary-analysis-of-microbiome-causing-primary-endodontic-infections-in-egypt
#12
Sally Ali Tawfik, Marwa Mohamed Azab, Ali Abdellah Abdelrahman Ahmed, Dalia Mukhtar Fayyad
The use of high throughput next generation technologies has allowed more comprehensive analysis than traditional Sanger sequencing. The specific aim of this study was to investigate the microbial diversity of primary endodontic infections using Illumina MiSeq sequencing platform in Egyptian patients. Samples were collected from 19 patients in Suez Canal University Hospital (Endodontic Department) using sterile # 15K file and paper points. DNA was extracted using Mo Bio power soil DNA isolation extraction kit followed by PCR amplification and agarose gel electrophoresis...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29721021/molecular-typing-and-antimicrobial-susceptibility-of-methicillin-resistant-staphylococcus-aureus-isolated-from-bovine-milk-in-tanzania
#13
Jibril Mohammed, Michael Henry Ziwa, Yaovi Mahuton Gildas Hounmanou, Adela Kisanga, Huruma Nelwike Tuntufye
Methicillin-resistant Staphylococcus aureus (MRSA) in raw milk can be transmitted from animals to humans, and in Tanzania raw milk is sold in local markets and consumed as purchased. This study was performed to determine the molecular characteristics and antimicrobial susceptibility pattern of MRSA strains isolated from raw bovine milk sold at local markets in Tanzania. A total of 117 raw milk samples were cultured on Baird-Parker medium to isolate S. aureus and PCR was used for amplification of gltB gene for S...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29692813/prevalence-of-bacterial-vaginosis-and-its-association-with-risk-factors-among-nonpregnant-women-a-hospital-based-study
#14
Eliza Ranjit, Bijendra Raj Raghubanshi, Smrity Maskey, Pramila Parajuli
Bacterial vaginosis (BV) is an ecological imbalance of the vaginal microbiota affecting mostly women of reproductive age group. This study was carried out among 160 nonpregnant women registered at the Outpatient Department of Gynaecology/Obstetrics of KIST Medical College Teaching Hospital, Imadol, Lalitpur, Nepal, from November 2014 to May 2015. The aim of the study was to assess the association of the risk factors with BV and analyze the type of bacteria associated with BV. Nugent's scoring method was used for diagnosis of BV in this study...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29681943/morphological-and-molecular-identification-of-the-causal-agent-of-anthracnose-disease-of-avocado-in-kenya
#15
S K Kimaru, E Monda, R C Cheruiyot, J Mbaka, A Alakonya
Anthracnose disease of avocado contributes to a huge loss of avocado fruits due to postharvest rot in Kenya. The causal agent of this disease has not been clear but presumed to be Colletotrichum gloeosporioides as reported in other regions where avocado is grown. The fungus mainly infects fruits causing symptoms such as small blackish spots, "pepper spots," and black spots with raised margin which coalesce as infection progresses. Due to economic losses associated with the disease and emerging information of other species of fungi as causal agents of the disease, this study was aimed at identifying causal agent(s) of the disease...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29681942/bacterial-profile-antibacterial-resistance-pattern-and-associated-factors-from-women-attending-postnatal-health-service-at-university-of-gondar-teaching-hospital-northwest-ethiopia
#16
Abebaw Bitew Kifilie, Mulat Dagnew, Birhanemeskel Tegenie, Biruk Yeshitela, Rawleigh Howe, Ebba Abate
Introduction: Surgical site infection is a vital cause of maternal mortality and morbidity, especially in resource-limited countries. The rise of antibiotic resistance bacterial infection poses a big threat to this vulnerable population. However, there is lack of studies around the study area. Objective: The purpose of this study was to identify bacterial profile, antibacterial resistance pattern, and associated factors among mothers attending postnatal care health service...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29675044/effects-of-bile-acids-and-nisin-on-the-production-of-enterotoxin-by-clostridium-perfringens-in-a-nutrient-rich-medium
#17
Miseon Park, Fatemeh Rafii
Clostridium perfringens is the second most common cause of bacterial foodborne illness in the United States, with nearly a million cases each year. C. perfringens enterotoxin (CPE), produced during sporulation, damages intestinal epithelial cells by pore formation, which results in watery diarrhea. The effects of low concentrations of nisin and bile acids on sporulation and toxin production were investigated in C. perfringens SM101, which carries an enterotoxin gene on the chromosome, in a nutrient-rich medium...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29666650/bacterial-community-of-the-rice-floodwater-using-cultivation-independent-approaches
#18
Michele Pittol, Erin Scully, Daniel Miller, Lisa Durso, Lidia Mariana Fiuza, Victor Hugo Valiati
In agricultural systems, interactions between plants and microorganisms are important to maintaining production and profitability. In this study, bacterial communities in floodwaters of rice fields were monitored during the vegetative and reproductive stages of rice plant development using 16S amplicon sequencing. The study was conducted in the south of Brazil, during the crop years 2011/12 and 2012/13. Comparative analyses showed strong differences between the communities of floodwaters associated with the two developmental stages...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29623093/prevalence-and-antibiotics-susceptibility-pattern-of-salmonella-and-shigella-species-among-diarrheal-patients-attending-nekemte-referral-hospital-oromia-ethiopia
#19
Alemayehu Terfassa, Mulissa Jida
The main objective of this study was determining the prevalence and antibiotics resistance pattern of Salmonella and Shigella sp. from diarrheal patients attending Nekemte Referral Hospital. A total of 422 patients were included in the study and their sociodemographic and clinical information was collected using questionnaire. Stool samples of the patients were collected and processed following standard bacteriological protocols. Presumptive colonies of Salmonella and Shigella species were identified and subcultured to their respective genera by standard biochemical tests...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29552038/assessment-of-two-years-sputum-smear-results-among-tuberculosis-suspected-patients-in-gambella-regional-hospital-western-ethiopia
#20
Mistire Wolde, Alemayehu Fereja
Background: Determining burden of pulmonary tuberculosis (PTb) may be associated with success of directly observed theraphy (DOT) services in high PTb areas, such as Gambella, Ethiopia. Objective: To assess burden of sputum smear positive SSP-PTb reports in Gambella Regional Hospital, in two consecutive years: mid 2013 to 2015. Methods: From March 2013 to February 2015, PTb suspected patients' sputum Acid Fast Bacilli test results were collected from laboratory registration book of Gambella Regional Hospital, western Ethiopia...
2018: International Journal of Microbiology
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