African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5124

AJMR Articles

Polyphenolic profile, and antioxidant and antifungal activities of honey products in Benin

January 2018

The aim of this study was to characterize polyphenolic compounds, antifungal and antioxidant activities of polyfloral honey collected from three different phytogeographical zones in Benin duing dry and rainy seasons. Spectrophotometrically at 517 nm, DPPH scavenging activity of tested samples was measured, while antifungal activity, total polyphenols, flavonoids and condensed tannins were evaluted by Dohou, Singleton...

Author(s): François Ezin Azonwadé, Bertin Gbaguidi,  Armand Paraïso,  Durand M. Dah-Nouvlessounon, Elvire Goubalan, Farid Baba-Moussa, Madjid Amoussa, Latifou Lagnika, Victorien Dougnon and Lamine Baba-Moussa

Analysis of nitrifying microbial community for organic hydroponics

January 2018

For many years, the generation of nitrates from organic sources in order to create nutrient solutions for hydroponics had proved a challenge until lately when microorganisms were introduced to perform this task. The objectives of the current study therefore were to use local microbial consortium to nitrify goat manure in water and to determine microbial diversity in the inoculated consortium. Therefore, microorganisms...

Author(s): Edgar Mowa, Levi Akundabweni, Percy Chimwamurombe and Gaddafi Liswaniso

Genotyping of high-risk human papilloma virus (HR-HPV) and its role in cervical cancer among suspected women at reproductive age

December 2017

One of the important causes of uterine and cervical malignancy and premalignancy lesions in human is the infection with papilloma virus, especially genotypes that belong to high-risk human papilloma virus (HR-HPV) group. The involvement of HPV DNA testing in an adjacent to cytological screening will be of positive impact in early discovery of cervical neoplasia among women at risk and will significantly minimize the...

Author(s): Moneira A. Mansour, Mogahid M. Elhassan, Faris M. Eltom, Hala M. Yousif, Hashim M. Missawi, Eshraga O. Mohamed, Ibrahim B. Elemam and Bahjat S. Farsi

Solanum paniculatum Linn: A potential antimicrobial agent against oral microorganisms

December 2017

In Brazil, several species of potentially medicinal native plants exist, including Solanum paniculatum. This species is commonly known as “jurubeba” and belongs to the Solanaceae family, which is found in several regions in Brazil. It is widely used as a remedy for bronchitis, coughs, arthritis, jaundice, hepatitis, fever and stomach problems. The plant is believed to possess anti-viral, anti-cancer,...

Author(s): Maria Regina Macêdo-Costa , Pedro Henrique Sette-de-Souza , Shenia Eliane do Rego Carneiro , Julia Morais Fernandes , Silvana Maria Zucolotto Langassner , Maria do Socorro Vieira Pereira and  Kenio Costa Lima

Phytochemical screening and antifungal activity of leaves extracts of Luffa cylindrica (Roem)

December 2017

Mycosis constitutes a common health problem, especially in developing countries like Nigeria. The current cascade of antifungals are either too toxic or require long term use for total eradication. This study evaluates antifungal activity and phytochemical constituents of Luffa cylindrica leaves extract which were screened for the presence of bioactive phytochemicals and extracted by cold maceration in n-hexane, ethyl...

Author(s): Mercy Itohan Aboh, Peters Oladosu, Gbonbola Adeshina, Busayo Olayinka and Stephen Olayeni Olonitola

Phytochemical screening, toxicity and antimicrobial action of Solanum paniculatum Linn extract against dental biofilm bacteria

December 2017

The aims of study were to determine the phytochemical composition of hydroalcoholic extract of Solanum paniculatum Linn (jurubeba) root, to evaluate its in vitro antimicrobial action, as well as to determine the acute toxicity and potential cytotoxic effects of this extract. The extract was characterized by phytochemical screening and thin-layer chromatography. The following oral bacteria were used to determine the...

Author(s): Maria Regina Macêdo-Costa, Pedro Henrique Sette-de-Souza, Shenia Eliane do Rêgo Carneiro, Anne Kaline Claudino Ribeiro, Katarine Florêncio de Medeiros, Juliana Félix Silva, Matheus de Freitas Fernandes-Pedrosa and Kenio Costa de Lima

Genotypic characterization of Escherichia coli strains isolated from dairy cattle environment

December 2017

The aim of this study was to characterize the diversity of Escherichia coli strains involved in the dispersion of virulence genes. 152 E. coli strains originated from dairy cattle environment were evaluated through phenotypic and proteomic assays. These samples were investigated for the presence of virulence genes (eaeA, stxI, stxII, ST, LT, eagg, ial) and biofilm related genes (fimH, csgA, flu). Eighteen profiles were...

Author(s): Greiciane França Bronzato, Naiara Miranda Bento Rodrigues, Bruno Rocha Pribul, Gabrielli Stefaninni Santiago, Irene da Silva Coelho, Miliane Moreira Soares de Souza, Elina Reinoso, Mirta Lasagno and Shana de Mattos de Oliveira Coelho

Variability in the genotypes of rotavirus detected in Côte d'Ivoire from 2010-2016

December 2017

Group A rotaviruses are the major viral agent of acute gastroenteritis and severe diarrhea in children <5 years old. The World Health Organization (WHO) recommends surveillance of circulating strains before and after introduction of vaccination in countries. However, the diversity of circulating strains in developing countries is a major challenge to the vaccination programs. This study, carried out in furtherance of...

Author(s): Boni-Cisse Catherine, Meite syndou, Britoh Mlan Alice, Zaba Flore, N’Guessan Rebecca, Aka Lepri Nicaise and Lartey Bélinda

A retrospective study of antibiotic sensitivity pattern of uropathogens in the Federal Capital Territory, Nigeria

December 2017

This study was designed to bring to the fore the prevalent causative agents of urinary tract infections (UTIs) and their antibiotic susceptibility patterns in Nigeria, using patients attending University of Abuja Teaching Hospital (UATH) as a case study. Using microbiological/biochemical methods, prevalence of uropathogens amongst sexes, was compared between 2010 and 2015. Bacterial counts (105/ml) in the urine was used...

Author(s): Michael P. Okoh, Halima M. Habi and Salamatu S. Machunga-Mambula

Sanitization protocols applied to commercial restaurants: Effects on natural contaminant microbiota and Salmonella enterica Enteritidis adhered on tomatoes

December 2017

Sanitization is considered as essential for the microbial control of vegetables. The aim of this study was to evaluate the sanitization procedures used in commercial restaurants located in Vitória, Brazil. The efficacy of these sanitization procedures in reducing the presence of natural microbiota and Salmonella enterica Enteritidis cells on tomatoes were evaluated. All the restaurants in this study applied the...

Author(s): Maria Clara de Moraes Motta Machado, Grazielli Ramos de Lyra, Erika Madeira Moreira da Silva and  Jackline Freitas Brilhante de São José

Isolation of indigenous microorganisms from soil contaminated with metal scraps for the uptake of selected heavy metals in constituted growth media

December 2017

Indigenous bacteria and fungi were isolated from soil obtained from a metal scrap dumpsite in Ibadan, Nigeria. Soil sample analyses showed presence of calcium, iron, magnesium, zinc, manganese and copper. A selective isolation of microorganisms was done using heavy metal constituted growth media at concentration of 25 mg/L. Lactobacillus casei was isolated from cadmium and lead composed growth media, Corynebacterium...

Author(s): Ogunnusi T. A. and Oyetunji O. A.

Prevalence, risk factors and multidrug resistance profile of Staphylococcus aureus isolated from bovine mastitis in selected dairy farms in and around Asella town, Arsi Zone, South Eastern Ethiopia

December 2017

A cross-sectional study was carried out from November 2012 - May 2013 to estimate the prevalence of multi drug resistance Staphylococcus aureus from bovine mastitis and to assess its associated risk factors in selected dairy farms in and around Asella town, Arsi Zone, Ethiopia. A total of 384 fresh raw milk samples from dairy cows were examined for mastitis. Milk samples collected from 251 mastitic lactating cows were...

Author(s): Kemal Kedir Elemo, Tesfaye Sisay, Ashanafi Shiferaw and Muhammadhussien Aman Fato

Serotypes and antimicrobial resistance profiles of Salmonella isolated from fresh beef processing and chilled fresh beef samples produced and marketed in the metropolitan region of Cuiabá, in the State of Mato Grosso, Brazil

December 2017

Salmonella spp. in food products of animal origin can cause foodborne infections, and when antimicrobial-resistant strains are present, can evolve to severe disease. This study aims to determine the occurrence of Salmonella and identify the serotypes present in the beef production chain of the metropolitan region of Cuiabá, State of Mato Grosso, Brazil, and evaluate their antimicrobial resistance profile. The...

Author(s): Adelino da Cunha-Neto, Vinicius Silva Castro, Larrayane Albuês Carvalho, Dália dos Prazeres Rodrigues, Sérgio Borges Mano, Eduardo Eustáquio de Souza Figueiredo and Carlos Adam Conte-Junior,

Mitigation of drought in rice by a phyllosphere bacterium Bacillus altitudinis FD48

December 2017

Phyllosphere bacteria plays important role in mitigating biotic and abiotic stress. This study aimed to use phyllosphere bacterium of rice to enhance drought tolerance. Bacterial isolates obtained from rice phyllosphere were investigated for their plant growth promoting activities and role in alleviation of drought stress in rice. The isolates were identified as Bacillus altitudinis FD48, Bacillus pumilus FS20 and...

Author(s): Aswathy S. Kumar, Sridar R. and Sivakumar Uthandi

Isolation and identification of methicillin-resistant Staphlococcus aureus from mastitic dairy cows in Bishoftu town, Ethiopia

November 2017

This study determines prevalence of methicillin-resistant S. aureus from bovine mastitis in dairy cows from October 2012 to June 2013 in Bishoftu town, Ethiopia. In this cross-sectional study, 16 dairy farms were included and 384 lactating cows sampled. Clinical examination and California mastitis test (CMT) were performed to diagnose clinical and subclinical mastitis, respectively. Milk samples were obtained from the...

Author(s): Hika Waktole Ayana, Biruk Tesfaye Mekonnen, Ashenafi Shiferaw Bulle and Mekonnen Sorsa Berecha

Extended-spectrum beta-lactamase- and carbapenemase-producing Enterobacteriaceae clinical isolates in a Senegalese teaching hospital: A cross sectional study

November 2017

Extended spectrum β-lactamase (ESBL) and carbapenemase-producing Enterobacteriaceae (CPE) have been increasingly reported worldwide. The objective of this study is to determine the prevalence of these multidrug-resistant strains in a major university teaching hospital in Dakar, Senegal. A total of 1205 Enterobacteriaceae stains were tested for ESBL and carbapenemase production. Antibiotics susceptibility test was...

Author(s): Makhtar Camara, Mamadou Thierry Mane, Awa Ba-Diallo, Assane Dieng, Halimatou Diop-Ndiaye, Farba Karam, Seynabou Lo-Lo, Habsa Diagne-Samb, Safietou Ngom-Cisse, Coumba Toure-Kane, Aïssatou Gaye-Diallo, Souleymane Mboup, and Cheikh Saad Bouh Boye

A novel groel gene from the endosymbiont of beet leafhopper, Candidatus Sulcia muelleri

November 2017

Curtoviruses are transmitted by the beet leafhopper Circulifer tenellus, in a circulative (non-propagative) manner. Curtoviruses are phloem-limited and are acquired by the vector during feeding. Sap-feeding insects harbor endosymbionts which can help provide essential nutrients required for the insects’ survival. Candidatus Sulcia muelleri is an endosymbiont present in the beet leafhopper identified during this...

Author(s): Tesneem Nusayr and Rebecca Creamer,

Prevalence and antimicrobial susceptibility of Salmonella species from lactating cows in dairy farm of Bahir Dar Town, Ethiopia

November 2017

Salmonella is the most important disease causing bacteria in persons as well as in animals. Antimicrobial-resistant Salmonella can be transmitted from animals to humans through consumption of contaminated food and food products. Thus, this study was conducted to determine the prevalence and antimicrobial susceptibility of Salmonella species from lactating cows in dairy farms of Bahir Dar town. A cross-sectional study...

Author(s): Guesh Mulaw

Pityriasis versicolor profiles among outpatients of the Dermatology Department of the Teaching Hospital of Yopougon Abidjan, Cote d’Ivoire

November 2017

This cross-sectional and descriptive study was carried out to determine the socio-demographic, and clinical profiles of mycologically diagnosed pityriasis versicolor (PV) among outpatients of the Department of Dermatology, Teaching Hospital of Yopougon (Abidjan, Côte d’Ivoire) between July, 2012 and February, 2013. Among 1578 patients screened for various consultations, 200 presented with lesions suggestive...

Author(s): Abibatou Konaté, Pulchérie Christiane Marie Barro-Kiki, Kondo Fulgence Kassi, Kpongbo Etienne Angora, Henriette Vanga-Bosson, Vincent Djohan, Akoua Valérie Bédia-Tanoh, Assohoun Jean Sebastien Miézan, William Yavo and Eby Ignace Hervé Menan,

In vitro biocontrol and biofertilization features study of a Bacillus amyloliquefaciens (4RH) strain isolated from a hot spring soil in Algeria

November 2017

Several Bacillus strains were isolated from “Ouled Yelass” hot spring soil, located in Setif city (Eastern Algeria). Three isolates of them coded (4RH), (14 RH), and (Set-oxy), were screened for their ability to inhibit the growth of some phytopathogenic fungi, such as Fusarium oxysporium, Botrytis cinerea, Aspergillus niger, Cladosporium cucumerinium and Alternaria alternata. The molecular identification of...

Author(s): Asma AIT KAKI, Mounira KARA ALI, Asma MILET, Nassim MOULA, Philippe THONART and Noreddine KACEM CHAOUCHE

Antibiotic susceptibility pattern of bacterial isolates in children with otitis media in Zamfara, North-Western Nigeria

November 2017

Otitis media has been reported as a common childhood disease and is associated with multiple microbial pathogens within the middle ear. Though the causative agents of this infection have largely remained the same over the years, current literature reviews show that the antibiotic susceptibility pattern has changed considerably. This study aimed to identify bacterial isolates and determine their antibiotic susceptibility...

Author(s): Bilkisu Ilah Garba, Bello Alhaji Mohammed, Fatima Mohammed, Murtala Rabiu, Usman Mohammed Sani, Khadija Omene Isezuo and Usman Mohammed Waziri

Isolation and characterization of bacteria associated with yolk sac infection (Omphalitis) in chicken from three hatcheries in Bishoftu, Ethiopia

November 2017

A study was conducted from November 2014 to June 2015 at three hatcheries designated as A, D and E in Bishoftu Town, Ethiopia, to isolate and identify bacteria associated with yolk sac infection and to determine antimicrobial susceptibility profile of the predominant isolates. A total of 385 Lohmann and Koekoek breed, 1 to 7 days old chicks suffering from yolk sac infection were examined from three different hatcheries...

Author(s): Kasech Melese, Wondmeneh Esatu and Takele Abayneh

Effect of rates and sources of soluble phosphorus on the behavior of cowpea plants inoculated with rhizobacteria from soils of the north region of Brazil

November 2017

Cowpea can obtain N through biological nitrogen fixation (BNF) through symbiosis with rhizobacteria. However, nodulation and BNF are influenced by edaphoclimatic factors that may bring about benefits or damages to the process, and the availability of nutrients is among the main factors that affect BNF and phosphorus (P). Thus, the present study aimed to determine the effectiveness of doses and sources of soluble P on...

Author(s): Érica de Oliveira Araújo, Juliana Guimarães Gerola, Caiqui Raoni Gomes Ferreira and Leandro Cecílio Matte

Microbial quality of retail raw meat in administrative towns of Gojjam area North-West Ethiopia with special reference of Gram positive cocci species

November 2017

This study was conducted to determine the bacteriological quality of retail raw meat. Twenty one raw meat samples were randomly collected from four administrative towns: Bure, Debre-Markos, Dejen and Fenoteselam meat-stalls of Gojjam area. Samples were collected and transported kept in cold sterile screw cap bottles with ice contained icebox. It was cultured on plate count agar and mannitol salt agar plates for...

Author(s): Seifu Birhanu, and Sentayhu Menda,

Microbial production of textile grade pigments

November 2017

Biological pigments or biochromes are substances produced by living organisms and have a color  resulting from selective color absorption. A total of 37 isolates of Actinomycetes and 2 bacteria were isolated from 26 different soil samples collected from different habitats of Kerala. The isolates were screened for pigment production. The effect of pigment production by the strains on various carbon and nitrogen...

Author(s): A. Sadasivan Nair, B. Prakash Kumar and J. Anu Geo

Biodegradation of petroleum hydrocarbon by Micrococcus sp. in form of wax ball

November 2017

Hydrocarbon containing compounds like diesel, crude oil and petrol cause environmental pollution. Hydrocarbon contaminated sites contain large amount of microbial community adapted for utilizing these compound as a source of carbon and other metabolic activities. A study was conducted in order to isolate the micro-organism from hydrocarbon contaminated sites for petroleum degradation. The soil sample was collected from...

Author(s): Nida Abdul Qadir, Javed Hasnain and Warda Fatima

Effect of surfactants on lignin modifying enzyme activity of Ganoderma species KX879638 and Lentinus species KY006984 under solid state fermentation

November 2017

Lignin modifying enzyme (LME) activity [laccase, lignin peroxidase (LiP) and manganese peroxidase (MnP)] was studied in two indigenously isolated white rot fungi, Ganoderma species KX879638 and Lentinus species KY006984 under solid state fermentation (SSF) of wheat bran and saw dust supplemented with various non-ionic polysorbate surfactants (Tweens) and Triton X-100. Both fungal species proved to be highly ligninolytic...

Author(s): A. Singh and R. K. Singh

Production of antimicrobial agents by Bacillus spp. isolated from Al-Khor coast soils, Qatar

November 2017

Bacilli are Gram-positive, sporulating bacteria that can be found in diverse habitats, but mostly in soil. Many recent studies showed the importance of their antimicrobial agents that mainly target other Gram-positive bacteria. This study was conducted to assess the antibacterial activity of Al-Khor coastal soil Bacillus strains against four bacterial strains (Staphylococcus aureus, Staphylococcus epidermis, Escherichia...

Author(s): Asmaa Missoum and Roda Al-Thani

Diversity and antimicrobial resistance of Salmonella strains isolated from different sources in Burkina Faso

October 2017

Epidemiologic and traceback evidence of Salmonella infection is not much in many developing countries including Burkina Faso. This study investigates the antimicrobial resistance and distribution of Salmonella serotypes isolated from diverse sources in Burkina Faso. 615 Salmonella serotypes isolated from beef meat, poultry carcasses, poultry, swine, cattle, hedgehog, fish, salad, channel and humans from 2009 to 2011...

Author(s): Kagambèga A., , , Bouda S. C., Bako E., Cissé H., Barro N. and Haukka K.,

Milk ring, rose bengal tests and conventional PCR based detection of Brucella abortus infected dairy cattle in Bangladesh

October 2017

The objective of this study was to detect dairy cattle infected with Brucella abortus from Jamalpur, Rangpur districts and Central Cattle Breeding and Dairy Farm (CCBDF), Savar, Dhaka in Bangladesh. Both milk and serum samples of 510 dairy cattle were initially screened by milk ring test (MRT) and Rose Bengal Test (RBT). Twelve samples positive in both MRT and RBT were further confirmed by conventional polymerase chain...

Author(s): M. A. S. Sarker, M. S. Rahman, M. M. Begum, M. B. Rahman, M. F. Rahman, H. Neubauer and A. K. M. Anisur Rahman

Comparative evaluation of the antimicrobial profile of Moringa leaf and seed oil extracts against resistant strains of wound pathogens in orthopedic hospitals

October 2017

The antimicrobial profile of oil extracts from Moringa oleifera leaves and seeds on orthopaedic wound pathogens was tested and compared with the antimicrobial activity of some antibiotics. The pathogens were characterized using biochemical and morphological tests. Antimicrobial susceptibility test was done on the pathogens using paper discs diffusion method. Plasmid curing was done on the isolates that showed resistance...

Author(s): Anthony C Mgbeahuruike, Gloria Edeh, Chuma S Eze, Joshua Parker, Samuel Okezie Ekere, Onyinye O Kanu and Esther Dibua

Study of kefir biofilm associated with hydroethanolic extract of Euterpe oleracea Mart. (açai)

October 2017

Kefir is a microbial complex capable of producing biofilms. This study aims to obtain biofilms associated with hydroethanolic extract of Euterpe oleracea Mart. (BEHEEo) as fixing method of recovery anthocyanins in kefir biofilm. Thus, BEHEEo formation kinetics was made at different concentrations of aqueous extract of E. oleracea, of kefir grains (KG) and of brown sugar (BS). Thereafter, macro and microelements of...

Author(s): Antonio Ferreira de Oliveira, Adriana Ferreira Maciel, Alexandro Cezar Florentino, Caio Pinho Fernandes, Roberto Messias Bezerra, Mariana Baía Góes, Mario O. C. Salcedo, Robert Ronald Maguiña Zamora and José Carlos Tavares Carvalho,

Bacterial and fungal etiologies of meningeal irritation syndrome in an emergency department

October 2017

Meningeal irritation syndrome denotes to a range symptoms that require emergency management. Clinically, it is an expression of an irritation of the meninges combining with headache, fever, neck stiffness, altered consciousness and vomiting. The aim of this prospective study was to contribute to the management of medical emergencies. Cerebrospinal fluid (CSF) samples recovered from patients presenting signs of meningeal...

Author(s): NTSAMA E. Claudine, ABOLOGO A. Larissa, OWONA F. Dieudonné, ETOUNDI M. G. Alain, LEME B. Lucie, ABONG B. Thérèse and BILONG B. F. Charles

Endophytic bacteria isolated from ipê mirim (Tecoma stans Bignoniaceae) and its application for plant growth promotion

October 2017

Endophytes are usually protected from soil environment competitiveness and stress. However, the presence of heavy metals can negatively affect the structure and diversity of endophyte communities. The aim of the present study was evaluate the diversity of endophytic bacteria from ipê mirim (Tecoma stans Bignoniaceae) grown in an area of Atlantic rainforest contaminated with metals and evaluate the ability of these...

Author(s): Almir José Ferreira, Luciana Francisco, Elisa Esposito, Manuella N. Dourado and Welington Luiz Araújo,

Effect of EDTA on biofilm formation and antibiotic susceptibility of multidrug resistant uropathogenic Escherichia coli clinical isolates in Egypt

October 2017

Urinary tract infections are mainly caused by uropathogenic Escherichia coli (UPEC). Biofilm-producer UPEC tends to have a high level of resistance to antibiotics and this leads to recurrent episodes of urinary tract infections. The study tested the effect of a non-antibiotic adjuvant, ethylenediaminetetraacetic acid (EDTA) on the bacterial susceptibility to antibiotics and biofilm formation by multidrug resistant (MDR)...

Author(s): Wesam Elsayed Gawad, Omneya Mohamed Helmy, Wael Mostafa Tawakkol and Abdelgawad Mohamed Hashem,

Cholesterol reduction in vitro by novel probiotic lactic acid bacterial strains of Enterococcus isolated from healthy infants’ stool

October 2017

The present study aimed to isolate and evaluate the potentiality of some probiotic lactic acid bacteria from infants stool to degrade and reduce cholesterol level in fermentation medium. Out of 50 lactic acid bacterial isolates recovered from healthy infants (3 to 18 months old) stool, two bacterial isolates W7 and Y1 showed highest cholesterol reduction percentage (68.38 and 71.6%, respectively). The cholesterol...

Author(s): Akram A. Aboseidah, Abdel-Hamied M. Rasmey, Magdy M. Osman, Salha G. Desouky and Nehal Kamal

Screening of rural scavenging birds for the presence of detectible protective Newcastle disease antibodies in some selected rural communities of Plateau State

October 2017

A sero-prevalence study was conducted to determine the level of detectible protective antibody titre using the haemagglutination (HA) and haemagglutination inhibition (HI) tests. Serum samples were collected from four hundred and eighty seven unvaccinated rural scavenging chickens from five selected rural communities, including Du, Chaha, Chakarum, Chele and Ngo’hong in Jos South Local Government Area of Plateau...

Author(s): Anthony N. Egbuji, John O. Ibu, Ismali A. Shittu, Echeonwu, G. O. N., Enura L. Uwanibe, Dauda Bwala, Joshine Kiagama, Evelyn Dung, Davou Nyam, Chinemerem Obene, Adamu Kwanga, Fatima Mukaila, Haruna Dagwong, Sati Lokason, Nicodemus Useh and Jude Rabo

Morphophysiological and molecular characterization of wild yeast isolates from industrial ethanol process

October 2017

Wild yeasts are commonly found during the fermentation process, displaying different survival and competition strategies that commonly enable their successful spread in the medium. Identifying these yeasts by biological and molecular monitoring, and knowing their traits is vital for the fermentation yield, and this can be done by simple methods such as differential mediaplating, growth rate evaluation and DNA...

Author(s): Nádia Cristina Viana, Cauré Portugal and Sandra Helena da Cruz

Distribution of Aspergillus and Fusarium ear rot causative fungi in soils under push-pull and maize monocropping system in Western Kenya

October 2017

It is imperative to establish the distribution and density of soil fungal communities as a requisite for formulating strategies for management of ear rot infections and mycotoxin contamination. In a two seasons study, short (SR) and long rainy (LR) seasons, we investigated the distribution of Aspergillus and Fusarium fungi causing ear rots and producing mycotoxins from 120 soil samples collected from maize fields under...

Author(s): Maxwell J. Owuor, Charles A. O. Midega, Meshack Obonyo and Zeyaur R. Khan

Effect of phosphorus fertilization on arbuscular mycorrhizal fungi in the Bambara groundnut rhizosphere

October 2017

Tropical soils are highly leached, abundantly clayey and strongly acid, resulting in low mineral availability and especially phosphorus (P). The plants of this region must establish symbiotic relationships enabling them to strengthen their hydromineral nutrition. The aim of this work was to study the effect of P fertilizer application on the diversity of arbuscular mycorhizal fungi (AMF) under the rhizosphere of three...

Author(s): Temegne Nono Carine, Wakem Germaine-Alice, Taffouo Victor Desiré, Mbogne Taboula Judith, Onguene Awana Nérée, Youmbi Emmanuel, and  Ntsomboh-Ntsefong Godswill,

Detection and genotyping of rhinovirus from exacerbated asthmatic patients in Baghdad, Iraq

September 2017

Asthma is a chronic disease with multiple environmental and genetic causes. Determining the role of rhinovirus in asthma incidence and exacerbation could improve the controlling measures for this disease. This study aims to detect and genotype human rhinovirus (HRV) in asthmatic patients in Iraqi population. A total of 45 patients with asthma participated in this study. Viral RNA was extracted from nasopharyngeal swabs...

Author(s): Ayad M. Gaidan, Ahmed A. Abbas, Qasim S. Al-Mayah, Mohammed A. Hassan and Hashem M. Hashim

Urinary tract infection among children and adolescents of Garhwal Region of Uttarakhand, India

September 2017

Urinary tract comprises of kidney, ureter, urethra and genital organ and under normal circumstances these organs are sterile. Inflammation of these organ and parts may indicate the possibility of Urinary Tract Infection (UTI). It may be due to the colonization of wide range of bacteria either from normal microflora that is Escherichia coli or from other Gram negative or Gram positive bacteria. The present study was...

Author(s): Semwal A. C., Saklani P. and Mathuria Y. P.

Challenges in diagnosis of central nervous system infections using conventional method: Need for better approach in Rwanda

September 2017

Central nervous system (CNS) infection is a common and serious disease that needs rapid and appropriate diagnosis for an appropriate treatment. However, in most recourse limited setting including Rwanda, conventional microbiological method is the only way to establish a confirmed infectious etiology. This was a 4 years retrospective review of registers and electronic laboratory records aimed to determine the causative...

Author(s): Edouard Ntagwabira, , Marianne Wanjiru Mureithi, Claude Mambo Muvunyi, Florence Masaisa, Menelas Nkeshimana, Isabelle Mukagatare, Doreen Thuo, Walter Jaoko, Jean Baptiste Mazarati and Omu Anzala

Isolation of bacteria from mobile phones before and after decontamination: Study carried out at King Abdulaziz University, Jeddah, Saudi Arabia

September 2017

Different fomites which are in regular contact with humans can play an important role in the transmission of microorganisms. Mobile phones have become indispensable in all walks of life; nevertheless their potential role in transmission of infections is of great interest. A cross-sectional study was done (April to June, 2015) at King Abdulaziz University, Jeddah, Faculty of Medicine (female campus), in order to detect...

Author(s): Razina Mohd. Qamar Zaman and Noof Refat Mohd Helmi

Value of matrix assisted laser desorption ionization-time of flight (MALDI-TOF) mass spectrometry in clinical microbiology and infectious diseases in Africa and tropical areas

September 2017

Matrix assisted laser desorption ionization-time of flight (MALDI-TOF) mass spectrometry (MALDI-TOF MS) is a revolutionary technique with multiple applications. Its use in clinical microbiology is now becoming widespread as the method is an easy, rapid, effective, accurate, and cheap way to identify cultured bacteria and fungi. It is, therefore, an ideal tool to replace conventional methods still used in Africa and...

Author(s): Cheikh Ibrahima Lo, Bécaye Fall, Bissoume Sambe-Ba, Christophe Flaudrops, Ngor Faye, Oleg Mediannikov, Cheikh Sokhna, Boubacar Wade, Didier Raoult and Florence Fenollar

Halo-thermophilic bacteria and heterocyst cyanobacteria found adjacent to halophytes at Sabkhas, Qatar: Preliminary study and possible roles

September 2017

This study was conducted to investigate the halo-thermophilic bacteria and cyanobacteria adjacent to the halophytic plants, Suaeda virmiculata, Limonium axillare and Tetraena qatarense, and the microbial functionalities in Sabkhas of Qatar. These soils are alkaline and highly saline, and their moisture contents varied throughout the year. A significant presence of thermo-halophilic bacteria was found when selective...

Author(s): Roda Fahad Al-Thani and Bassam Taha Yasseen

Streptococcus pseudopneumoniae as an emerging pathogen from patients with respiratory diseases

September 2017

Streptococcus pseudopneumoniae is a mischaracterized species of Streptococci that is usually overlooked during examination of sputum samples of patients with chest infections. The association of this organism with lower respiratory tract diseases is still unclear and its isolation and description is underestimated in our locality. To our knowledge, there are no published studies on the isolation of S. pseudopneumoniae...

Author(s): Samah Sabry El-Kazzaz, Noha Tharwat  Abou El-Khier and Eman Omar Arram

Susceptibility to fungal infection: A comparison between Capsicum annuum and Capsicum frutescens

September 2017

Experiment was carried out to compare the susceptibility of Capsicum annuum and Capsicum frutescens on sale to fungal infection at Sharada and Rimi markets in Kano metropolitan area. A total of four fungal species were isolated from samples of C. annuum and C. frutescens collected from the two markets. Out of the colonies isolated, the most abundant colony was A. niger (84, 39.25%). This was followed by R. stolonifer...

Author(s): Yahaya S. M., Mukhtar D., Ali M. U., Lawan M., Ibrahim A. M., Amina L. A., Tasiu A. M., Sadiya A. B., Maimuna M. D. and Musa M. J.

Antioxidant modulation in response to selenium induced oxidative stress in unicellular cyanobacterium Synechococcus elongatus PCC 7942

September 2017

A unicellular cyanobacterium Synechococcus elongatus PCC 7942 was exposed to various concentrations of SeO42–. A growth supportive effect was seen at 50 µM concentration of SeO42− whereas 50% growth retardation was observed at 200 µM of SeO42−. Selenium (Se) stress at 200 µM SeO42− induced the formation of reactive oxygen species such as superoxide radical (O2•–),...

Author(s): Priya Saraf , Akanksha Sao and Divya Bagchi

Salmonella Heidelberg reduces nitrergic neurons in the myenteric plexus of the duodenum of broilers

September 2017

The present study aimed to characterize the effects of Salmonella Heidelberg challenge, as well as its changes in the inhibitory neuron subpopulation in the myenteric plexus of broilers. At the age of 21 days, after euthanasia of birds, duodenum fragments were collected from 5 male chicken broilers Cobb 500 linage from the challenged group and the control group for the quantification from the subpopulation of myenteric...

Author(s): Patrícia Franco Gonçalves Previato do Amaral, Gabriela Rocha Santos, Tatiana Kaori Urano, Karen da Silva Diniz, Tatiane dos Santos Aparecido Gonçalves, Grazielli de Fátima Serenini, Luciana Kazue Otutumi and Ricardo de Melo Germano

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