African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5176

AJMR Articles

Antimicrobial activity of Phoma sp. URM 7221: An endophyte from Schinus terebinthifolius Raddi (Anacardiaceae)

January 2017

The discovery of new metabolites potentially bioactive against pathogenic microorganisms, mainly multidrug resistant, has aroused interest in endophytic fungi. The plant-associated microorganisms have been an important source for development of new compounds of biotechnological interest. This study aimed to investigate the antibacterial capacity of the endophytic fungus, Phoma sp. URM 7221 isolated from the medicinal...

Author(s): Gustavo Bartolomeu Pedrosa Gomes da Silva, Karine Fagundes Silvino, Jadson Diogo Pereira Bezerra, Thaísa Gabriela Silva de Farias, Janete Magali de Araújo and Tânia Lúcia Montenegro Stamford

A very high frequency of hepatitis B and C virus infections during an active screening campaign in Abidjan

January 2017

Viral hepatitis is a serious public health problem affecting billions of people globally. Limited information is available on this issue in Cote d’Ivoire. The objectives of this study were to determine the prevalence and factors associated with hepatitis B virus (HBV) and hepatitis C virus (HCV) during an active screening campaign in Abidjan. A cross-sectional study was conducted at Pasteur Institute of Cote...

Author(s): Kouassi-M’Bengue A., Ouattara Abdoulaye, Allah-Kouadio Emile, Sevede Daouda, Doumbia Moussa and Dosso M.,

Diversity and composition of methanotrophs in paddy soil as affected by different long-term fertilizer management from double-cropping paddy fields in Southern China

January 2017

Methane (CH4) is the most important greenhouse gas, which was produced from paddy fields. The CH4 production and emission were affected by methane–oxidizing bacteria (methanotrophs). Therefore, it is significant to investigate the effects of fertilizer applications on the change of soil methanotrophs, which affected CH4 emission. The objective of this paper was to describe changes of CH4 and diversity and...

Author(s): Haiming Tang, Yilan Xu, Xiaoping Xiao, Jie Liu, Weiyan Li and Jimin Sun

Seasonal emergence of swine erysipelas in hilly state Nagaland, Northeast India

December 2016

Seasonal outbreaks of swine erysipelas have been reported in back yard pig farms in the Phek district of Nagaland, India. The alpha haemolytic isolate of Erysipelothrix rhusiopathiae was recovered on blood agar from the clinical samples. The organisms were confirmed microscopically, biochemical analysis as well as by polymerase chain reaction (PCR) amplification of 16S rRNA gene and sequence analysis. These Nagaland...

Author(s): Nagendra Nath Barman, Debojyoti Borkotoky, Biswajyoti Borah, Anjan Jyoti Nath, Papiya Das and Durlav Prasad Borah

Effect of organic and inorganic fertilizer applications on phosphate solubilizing bacteria in the rhizosphere of maize (Zea mays L.)

December 2016

A field experiment was conducted between August and October, 2014 at the Department of Microbiology to assess the effect of organic and inorganic fertilizers on the population and activities of Phosphate Solubilizing Bacteria (PSB) in the rhizosphere of maize variety BR9928DMRSR-Y. Three treatment groups were used in the study and these were: Groups which received applications of organic fertilizer (Poultry litter)...

Author(s): Patrick Okorie Richard and Adeniyi Adewale Ogunjobi

Reuse of anaerobic reactor effluent on the treatment of poultry litter

December 2016

Anaerobic digestion of poultry litter was studied with reutilization of its effluent in the process by pumping into reactor feeding, contributing to the moisture content and making part of the feeding organic load: 0.5 and 1.0 kg VS/m3/day, at evaluations 1 and 2, respectively. The hydraulic residence time lasted 10 days for both evaluations and the useful volume of reactor was 35 m3, with a semi-continuous reactor...

Author(s): Michael Steinhorst Alcantara, Maria Hermínia Ferreira Tavares and Simone Damasceno Gomes

Evaluation of in vitro inhibition of mycelial growth of Fusarium solani f. sp. piperis by different products in Brazil

December 2016

The black pepper (Piper nigrum L.) is one of the most popular peppers in the world. Nonetheless, there are several limitations on cultivation, resulting in reduced production or a complete loss of the crop. The major disease affecting this crop is fusarium root rot caused by Fusarium solani f. sp. piperis, which is responsible for decimating whole crops in Brazil, with losses reaching millions of dollars per year. So...

Author(s): Verônica D’Addazio, Renata Aparecida Ahnert dos Santos, Arthur Salomão Bastos Leitão, Marcelo Barreto da Silva, Adriano Alves Fernandes and Antelmo Ralph Falqueto

Survival of Salmonella Enteritidis and Escherichia coli in cactus cladodes under domestic marketing conditions in Mexico

December 2016

In Mexico, during domestic marketing of cactus cladodes, called “nopalitos”, there is a tendency not to provide refrigerated storage, and sometimes dealers do not take care of the hygienic conditions of the product during commercialization. Therefore, the objective of this study was to evaluate the survival of Salmonella Enteritidis and Escherichia coli on cladodes of Opuntia ficus-indica Var. Atlixco under...

Author(s): José Luis Zárate-Castrejón, Talina Olivia Martínez-Martínez, Juan Gabriel Angeles-Núñez, Fanny Guadalupe Concha-Valdez, José Ramón Verde-Calvo and Martha Elva Ramírez-Guzmán

Effect of compaction of soil on the development and production of cowpea inoculated with rhizobium

December 2016

Cowpea is considered as one of the most important species in Brazil, for presenting essential components to the feeding process, which makes it relevant to identify the physical, chemical and biological conditions that benefit or cause damage to its development. Thus, the objective of this study was to evaluate the effect of inoculation with rhizobia strains in compacted soil on the development and production of cowpea....

Author(s): Núbia Leite da Silva, Salomão Lima Guimarães, Edna Maria Bonfim-Silva, Erineudo Lima Canuto and Helon Hébano de Freitas Sousa

Mutations in β-lactamases detected in multidrug resistant gram negative bacteria isolated from community acquired urinary tract infections in Assiut, Egypt

December 2016

The aim of this study was to characterize the beta lactamases genes of bacteria isolated from urinary tract infection (UTI) in Assiut, Egypt. Results revealed that one hundred fifty nine [31.8%] out from 500 urine samples were culture-positive. Escherichia coli was the most common UTI pathogen [61%] followed by Klebsiella pneumoniae [23.3%], Proteus mirabilis [8.2%] and Pseudomonas aeruginosa [7.5%]. Sensitivity of...

Author(s): Mohamed Salah, Marwa Azab, Hamada Halaby and Amro Hanora

Prevalence and Antibiotic Susceptibility of Escherichia coli and Salmonella spp. isolated from milk of zero grazed cows in Arusha City

December 2016

The present study assessed the antibiotic susceptibility patterns of Escherichia coli and Salmonella isolates of raw milk from zero grazed cows. A total of 65 milk samples were collected for analysis. The standard membrane filtration technique and HiCrome E. coli agar were used in isolation of E. coli from milk samples. Isolation of Salmonella species employed pre-enrichment in buffered peptone water followed by...

Author(s): Martha M. Sudda, Adelard B. Mtenga, , Lughano J. Kusiluka and Neema Kassim

Potential control of beans (Phaseolus vulgaris L.) wilt disease using growth regulators, bioagent, antioxidants and essential oils as foliar application under field conditions

December 2016

The efficacy of some fungicide alternatives as foliar spray was evaluated against bean wilt incidence under field conditions. The fungicide alternatives were indole acetic acid, gibberllic acid, Trichoderma harzianum, vitamins E and C, lemon grass, moringa leaf and thyme oils. The obtained results showed that the applied fungicide alternatives treatments could suppress the incidence of green bean wilt. In the light of...

Author(s): Mokhtar M. Abdel-Kader and Nehal S. El-Mougy

Antibacterial activity of selected medicinal plants used in South-western Ethiopia

December 2016

Traditional medicinal plants claim many traditional uses across different parts of the world. In Ethiopia, it remains the main source of treatment for the majority of human population and livestock. The aim of this study was to evaluate antibacterial activity of crude extracts of some traditional medicinal plants commonly used for traditional human medication in selected localities of Jimma Zone, Southwest Ethiopia....

Author(s): Tadesse Begashawu, Yinebeb Tariku and Ketema Bacha

Combination antibiotic-phytochemical effects on resistance adaptation in Staphylococcus aureus

December 2016

Emergence and rapid spread of antibiotic resistance has become one of the leading causes of treatment failures in case of bacterial infections. Antibiotic combinations are generally used to enhance the overall efficacy of therapy with the aim to generate synergistic outcomes. It further helps in reduction of total antibiotic dosage. Phytochemicals are known to have multiple bacterial targets that modulate or modify...

Author(s): Shuchi Arora, Bhone Myint Kyaw and Chu Sing Lim

Optimization of parameters to increase the xylose reductase production from Candida tropicalis strain LY15 using corn cob as hemicellulose waste substrates

December 2016

Xylose reductase (XR) is a key enzyme in order to obtain xylitol from xylose. It has vast applications in biotechnology including xylitol production. The present study aimed to estimate and characterize XR from Candida tropicalis strain LY15. C. tropicalis strain LY15 showed xylose utilization ability and xylose reductase activity after 48 h of incubation at pH 6.5, incubation temperature 28°C and rotation speed 140...

Author(s): Kaliyan Barathikannan, Ameer Khusro and Agastian Paul

Rhizobia isolation and selection for serradella (Ornithopus micranthus) in Southern Brazil

December 2016

ability to associate symbiotically with rhizobia. The objective of this study was to isolate, authenticate and select effective rhizobia obtained from native serradella (Ornithopus micranthus) to reduce the need for mineral fertilizer. Nodules, roots of serradella and rhizosphere soil samples were collected in seven municipalities from Rio Grande do Sul and Santa Catarina states. Bacterial colonies were isolated and...

Author(s): Rafael Goulart Machado, Enilson Luiz Saccol De Sá, Suélen Oldra, Murilo Dalla Costa, Gilberto Dall´Agnol, Neemias Da Silva Santos and William Rosa Da Silva

Escherichia coli O157, Staphylococcus aureus and coliforms in crude and processed bovine milk marketed

December 2016

Fifty-five (55) samples from five municipalities in the Recôncavo from Bahia region were analyzed between May and July 2015 to evaluate the sanitary quality and the presence of pathogens of crude and processed bovine milk samples. Psichrotrophic, mesophilic and thermophile rates and the count of Escherichia coli, E. coli O157: H7 Staphylococcus aureus and Listeria monocytogenes were done by microbiological methods...

Author(s): Santos M. L., Barros L. S. S., Silva I. M. M., Andrade M. V. and Lima D. V.

Molecular characterization of local strains of Bacillus thuringiensis in the North of Algeria

December 2016

The analysis of soil samples taken from orange groves located in four cities of Northern Algeria allowed the isolation and identification of 24 strains belonging to the group Bacillus cereus, based on their physiological, biochemical and molecular characters investigated. They were divided as follow: 12 strains of Bacillus thuringiensis, 1 strain of Bacillus pumilis, 4 strains of Bacillus cereus, 5 strains of Bacillus...

Author(s): Kebdani M., Mahdjoubi M., Cherif A., Gaouar B. N. and Rebiahi S. A.

Bacteriocins of Gram-positive bacteria: Features and biotherapeutic approach

December 2016

Bacteriocins are potent antimicrobial peptides produced by every bacterial and archeal species reported to date. The most studied are bacteriocins produced by lactic acid bacteria (LAB) and many species of Bacillus. Knowledge on the classification, biosynthesis and transport of these peptides is changing continually because the discovery and characterization of new bacteriocins increases, thus, the research reports...

Author(s): David Francisco Lafuente-Rincón, Tania Elizabeth Velásquez Chávez and  Norma M. De la Fuente-Salcido

Effects of acidification on the extension of shelf life of Japanese wet-type noodles (woo-long noodle)

December 2016

Noodles are one of the most important foods worldwide; various methods have been reported to extend their shelf life. In this study, the effects of dipping noodles in various concentrations of acidulant solutions (organic acids) on the shelf life of the noodles were evaluated. The results showed that the growth of the tested microorganisms, that is, Escherichia coli, Staphylococcus aureus and Bacillus cereus, was...

Author(s): Hsueh-Liang Lin#, Der-Sheng Chen#, Chin-Hung Tsai and Shie-Jea Lin

Potential of certain cultivars and resistance inducers to control gray mould (Botrytis cinerea) of pepper (Capsicum annuum L.)

December 2016

Four different highly economic value pepper cultivars Trezaa, Emberu, Mazurka and Taranto usually grown in Egypt were used to evaluate the efficacy of certain resistance inducers to enhance resistance of pepper fruits against gray mould fungus. Pathogenicity tests with Botrytis cinerea (BC-3 isolate) revealed that cv. Mazurka (Red Colour) was most tolerant and exhibited 40.15% rot severity, while cv. Emberu (Yellow...

Author(s): A. Kamara, E. El-Argawy, A. El. Korany and G. Amer

Eugenol and linalool: Comparison of their antibacterial and antifungal activities

November 2016

Antimicrobial resistance is one of the greatest threats to human health. Alternatives to antimicrobials are needed to combat the rise of bacterial resistance. Essential oils (EOs) and their components are potential sources of new antimicrobials. The present study was conducted to evaluate the antibacterial and antifungal activities of two components of EOs. The antimicrobial mechanisms of eugenol and linalool were...

Author(s): Rehab Mahmoud Abd El-Baky and Zeinab Shawky Hashem

Induction of defense mechanisms from filtrates of saprophytic fungi against early blight disease in tomato

November 2016

The induction of defense enzymes presents efficient plant disease management when triggered by metabolic products of microorganisms. The aim of the present study is to select filtered saprobes fungi used for the management of early blight of tomato by inducing pathogenesis related to tomato plant. Filtrates of the fungi Curvularia eragrostidis, Curvularia inaequalis, Memnoniella echinata and Pseudobotrytis terrestris...

Author(s): Antônio Jussiê da Silva Solino, Kátia Regina Freitas Schwan-Estrada, Juliana Santos Batista Oliveira, Marianna dos Santos Rodrigues Alencar and Lilianne Martins Ribeiro

Survey of Cryptococcus neoformansin pigeon (Columba livia) excreta in Public Square in Umuarama, Paraná, Brazil

November 2016

Cryptococcosis is a common opportunistic fungal infection caused by encapsulated yeast of the Cryptococcus genus, mainly by the Cryptococcus neoformans and Cryptococcus gattii species. The fungus is acquired through the inhalation of environmental propagules or, more rarely, through organ transplants in immune-compromised individuals. Domestic pigeons (Columba livia) are related to the infection, mainly as natural...

Author(s): Gilneia Rosa, Luiz sérgio Merlini, Wellington Henrique Bessi, Arianne Peruzo Pires Gonçalves, Lorena Zacharias Silva, Pamela Roberta Perussi, Paulo Henrique Sposito and Pinto Neto Adalgiza

Identification and tracking of microorganisms from the biofilms of container walls used for water storage: Case of rural communities in Burkina Faso

November 2016

Safe drinking water is an important necessity for humans. In rural communities of Burkina Faso, many households use local containers for storing drinking water. During water storage, some microorganisms get attached to the surface walls of the containers to form a biofilm which can deteriorate drinking water quality over time. This study aimed at evaluating the attachment of indicator microorganisms to containers walls...

Author(s): Seyram K. Sossou, Franck Lalanne, Mariam Dakoure/Sou and Naoyuki Funamizu

Selection of anti-wetting agents and photoprotectants compatible with a soybean weed control bioagent

November 2016

Adjuvants incorporation at formulations can positively influence the performance of bioagent control, contributing to preservation of the inoculum until being used. Adjuvants should not be toxic to pathogen and tests that evaluate the sensitivity of biologic products are essential. The aim of this study was to analyze the compatibility of the anti-wetting agents microcrystalline cellulose, anhydrous sodium carbonate,...

Author(s): Machado, A. C. R., Monteiro, A. C. and Mochi, D. A.

Storage behaviour and functionality of a heat stabilized starter derived from an African opaque sorghum beer

November 2016

Tchoukoutou is a traditional sorghum opaque beer produced and consumed in Benin. It is obtained from an uncontrolled fermentation of sorghum wort using a traditional starter called “kpete-kpete”. The present study assessed the effects of storage duration on the physicochemical and microbiological characteristics as well as on the functional properties of the heat stabilized starter produced from...

Author(s): Djegui K. Y., A P. P. Kayodé and J. D. Hounhouigan

Characterization of arbuscular mycorrhizal fungi in apple (Malus domestica Borkh) growing area in Kashmir Himalaya (India): A case study of Bandipora district

November 2016

Rhizosphere soil samples and root pieces of 3 year old apple trees (var. Red delicious) were collected from 10 villages of district Bandipora of Kashmir Himalaya. Samples were processed for isolation of arbuscular mycorrhizal spores and their identification. On the basis of various morphological characters such as spore shape, colour, size, hyphal colour and with the help of International Collection of...

Author(s): Misbah A. Malik, Zargar M. Y. and Baba Z. A.

Effectiveness assessment of mouthwashes formulated from the essential oils of some beninese medicinal plants against oral germs

November 2016

Faced with the increasing growth of microorganism’s resistance to conventional antibiotics, the search of new bioactive molecules having pharmaceutical interest is more than ever committed. This study aimed to evaluate in vitro the effectiveness of seven mouthwashes formulated from essential oils of Ocimum gratissimum, Ocimum basilicum, Cymbopogon citratus, Clausena anisata, Lippia multifora, Eugenia caryophyllata...

Author(s): Jacob Bonou, Farid Baba-Moussa, Pacôme Agossou Noumavo, Adonice Zannou, Diane Aloukoutou, Lisette Kpavode, Hélène Ahouandjinou, Joachim Djimon Gbénou, Fatiou Toukourou and Lamine Baba-Moussa

Partial characterization of bacteriocin-like substance produced by probiotic Lactobacillus plantarum F12 isolated from Algerian children faeces

November 2016

The strain, Lactobacillus plantarum F12 with probiotic traits was isolated from Algerian healthy children faeces and identified by 16S rDNA sequencing. In this study, the antimicrobial activity and physicochemical properties of bacteriocin-like substance (BLS) produced by this strain were determined. Also, the bacteriocinogenic genes of plantaricin A, plantaricin J and plantaricin K were screened in this strain. The BLS...

Author(s): Fathia BAHRI and Noreddine KACEM CHAOUCHE

Analysis of high levels of multidrug resistant Escherichia coli from healthy broiler chickens in Western Algeria

November 2016

One hundred and two Escherichia coli strains isolated from healthy broiler chickens collected from April 2012 to November 2014 in seven geographic areas of western Algeria were studied. Susceptibility pattern to 11 antimicrobial agents was determined by disk diffusion method as recommended by the Clinical Laboratory Standard Institute (CLSI). Antibiograms revealed high levels of resistance to quinolones and...

Author(s): Benameur Qada, Ben-Mahdi Meriem-Hind, Boutaiba Benklaouz Meki, Tali-Maamar Hassiba, Assaous Farida, Guettou Badia and Rahal Kheira

Enteric fever caused by Salmonella enterica serovar paratyphi A: An emerging health concern in Nepal

November 2016

Enteric fever is an invasive life-threatening systemic disease caused by the Salmonella enterica human-adapted serovars typhi and paratyphi. Increased incidence of infection with S. enterica serovar paratyphi A poses a significant health concern in some areas of the world. In this study, the incidence of enteric fever confirmed by isolation of Salmonella paratypi A or S. typhi from blood cultures of patients presenting...

Author(s): Pramod Pokharel, Binod Lekhak, Ritu Amatya, Sharad Bhattarai and Prakash Pokharel

In vitro antimicrobial activity of three medicinal plants of Ethiopia against some selected bacterial isolates

November 2016

Medicinal plants constitute natural source of antimicrobial drugs that will provide essential compounds to fight against disease. In this study, the antibacterial activity of ethanol extracts of Moringa stenopetala, Thymus serrulatus, and Terminalia brownii were investigated against selected pathogenic Gram positive and Gram negative bacteria. In vitro antibacterial activities of the ethanol extracts were tested at a...

Author(s): Abraham Fikru Mechesso, Biruhtesfa Asrade, Harsiso Hailu and Alemayehu Toma

Extended spectrum-β-lactamase producing Escherichia coli and Klebsiella pneumoniae causing urinary tract infection

November 2016

Extended spectrum β-lactamase (ESBL) producing Escherichia coli and Klebsiella pneumoniae causing urinary tract infection (UTI) constitutes a significant therapeutic challenge.  The aim of this study was to investigate the frequency of ESBL producing Escherichia coli and Klebsiella pneumoniae isolated from urine samples. Clinical isolates of multidrug resistant Gram negative rods (n=102) were taken from urine...

Author(s): Alia Batool, Hania Baig, Muhammad Usman Qamar

Cyclic depsipeptide producing fluorescent pseudomonads exerts antifungal activity against fungal pathogens of maize (Zea mays)

November 2016

Cyclic lipopeptides (CLPs) with antibiotic, biosurfactant producing fluorescent pseudomonads were isolated from sugar beet-maize intercropped in sandy loam soils at Maize Research Station, Vagarai, TNAU. Approximately 20 fluorescent pseudomonads from sandy loam soils were isolated by using two different growth media. The strains were distinguished based on their growth, CFU/g, fluorescence, and pigment production....

Author(s): Radhajeyalakshmi Raju, Sethuraman Kandhasamy, Ganesan Kalipatty Nalliappan, Kumari Vinodhana Natarajan, Karthikeyan Gandhi and Bharathi Chandrasekaran

Production of fermented sweet potato flour using indigenous starter cultures

November 2016

The present study develop various microorganisms for starter culture purpose from fermented sweet potato and used the developed starters in the fermentation of sweet potato and products for consistent quality product with improved hygiene. Sweet potato was purchased from different markets and microorganisms were isolated and developed as starters. Comparative studies on different starters for the fermentation of sweet...

Author(s): Ajayi, O. I., Ehiwuogu-Onyibe, J., Oluwole, O. B., Jegede, A. A., Salami, T. A., Asieba, G. O., Chiedu, I. E., Suberu, Y. L., Aba, E. M., Dike, E. N., Ajuebor F. N. and Elemo, G. N.

Microbiological evaluation of drinking water available in schools in Cruz das Almas, Brazil

November 2016

The current study assessed the drinkability of water in 25 schools in Cruz das Almas BA Brazil. Total coliforms, Escherichia coli, Enterococcus, mesophylls and psichrotrophic bacteria were evaluated, coupled with color, turbidity, free residual chlorine, dissolved oxygen and biochemical oxygen demands. Water samples were collected at four sites: the first tap within the supply network or within the alternative supply...

Author(s): Marcos Vinicius Silva de Andrade, Ludmilla Santana Soares e Barros, Tatiana Pacheco Rodrigues, Monique Lima dos Santos and Danuza das Virgens Lima

Physiochemical evaluation and liability of dromedary camel’s milk in combating various pathogens

November 2016

Dromedary camel’s milk is a natural source of probiotics; enzymes and secondary metabolites that have the ability to combat many pathogens. The aim of this study was to compare the effectiveness of filtered and non-filtered dromedary camel’s milk activity against various pathogens. Filtered and non-filtered (raw and boiled) dromedary milk was assessed against different pathogens by using agar well diffusion...

Author(s): Maham Ghouri, Naheed Afshan, Sumaira Javed, Aziz Fatima, Ayman Sadat, Anam Chohan and Sayyeda Ghufrana Nadeem

Sensory, microbiological and physico-chemical characterization of Klila, a traditional cheese made in the south-west of Algeria

November 2016

Klila, an Algerian cheese produced in steppe and mountainous areas, is proving increasingly popular with consumers. It is traditionally made with ewe, goat or cow milk, leading to a product with high dry matter content (> 90%). In this work, we have characterized three different Klila cheeses made with the three different milks using physico-chemical and microbiological parameters. A triangle test was also...

Author(s): Benamara R. N., Gemelas L., Ibri K., Moussa-Boudjemaa B. and Demarigny Y.

Pneumonia in Algerian Ouled Djellal sheep: Bacteriological study and macroscopic aspect of lung lesions

October 2016

Respiratory diseases in sheep are a multifactorial etiology syndrome, causing great economic losses. This study was carried out with the aim of establishing a bacteriological diagnosis of respiratory diseases in sheep, on the basis of lungs with macroscopic lesions taken from sheep slaughtered at the Blida abattoir. A total of 150 samples (swabs and lung parenchyma) from 75 Ouled Djellal sheep, aged six to twelve months...

Author(s): Kamel Akloul and Mohammed Nabil Menoueri

Anti-biofilm activity of ibuprofen and diclofenac against some biofilm producing Escherichia coli and Klebsiella pneumoniae uropathogens

October 2016

Ibuprofen (IBU) and Diclofenac (DIC) are non-steroidal anti-inflammatory drug which have shown to have broad antimicrobial activity and limit biofilm formation. Aim of this study was to evaluate the effects of IBU and DIC against biofilm formation strong strains Escherichia coli and Klebsiella pneumoniae associated with urinary tract infections (UTIs). Additionally some virulence factors, antibiotic resistance, ESBL...

Author(s): Rosa Baldiris, Victor Teherán, Ricardo Vivas-Reyes, Alfredo Montes and Octavio Arzuza

External ocular bacterial infections among Sudanese children at Khartoum State, Sudan

October 2016

Ocular infections are widespread and they exert heavy burden on eye health. Virtually, any eye component can be infected by a diversity of bacteria. The present study was performed to determine the prevalence of external ocular bacterial infections and to find out antibiotic susceptibility pattern of bacterial isolates at eye care hospitals in Khartoum, Sudan. Two hundred and four corneal scrape and drained pus...

Author(s): Mazin O. Mohager, Lemya A. Kaddam and Samah O. Mohager

Microbiological and molecular characterization of environmental mycobacterium strains isolated from the Buruli ulcer endemic and non-endemic zones in Côte d’Ivoire

October 2016

Mycobacterium ulcerans (MU), the causative agent of Buruli ulcer (BU), skin disease, is considered to be an environmental pathogen. The pathogenic virulence of MU is being linked to the expression of toxin called Mycolactone. Genetic analyses have shown the high diversity with variable number tandem repeats (VNTR) and mycobacterial interspersed repetitive units (MIRU) in M. ulcerans and in mycolactone producing...

Author(s): Sabine N. Vakou, Julien Coulibaly-Kalpy, Solange E. Kakou-Ngazoa, N`guetta Aka, N`golo D. Coulibaly, Mireille Dosso  and Allico J. Djaman,

Effect of gamma irradiation (Co60) in the control of Campylobacter sp. in chilled chicken (Gallus gallus) heart

October 2016

The present study aimed to evaluate the efficiency of the irradiation process in the control of Campylobacter spp. in chilled chicken heart samples, since this microorganism is related to the contamination of meat and chicken giblets and is responsible for enteritis in humans. The methodology and standards recommended by RDC no. 12 (Brazil, 2001) were applied for the bacteriological analyses. The chilled chicken heart...

Author(s): Marta Maria Braga Baptista Soares Xavier, Robson Maia Franco, Ana Beatriz Monteiro Fonseca, Edgar Francisco Oliveira de Jesus, Mauro Carlos Lopes Souza, Sheila da Silva Duque, Wagner Thadeu Cardoso Esteves

Efficacy of biocontrol agents in the management of head rot of cabbage (Brassica oleracea var. capitata) caused by Sclerotinia sclerotiorum

October 2016

Head rot of cabbage caused by Sclerotinia sclerotiorum leads to rotting of fully matured cabbage heads in the field. In the present study the antagonistic effects of twenty Bacillus isolates was tested against S. sclerotiorum in vitro. Eight effective Bacillus isolates obtained from studies in vitro, commercial formulations of Trichoderma viride isolate TV-1 and Pseudomonas fluoroscens isolate Pf-1along with a fungicide...

Author(s): Kamesh Krishnamoorthy K., Sankaralingam A. and Nakkeeran S.

Soil enzyme activities and soil microbe population as influenced by long-term fertilizer management during the barley growth in Hunan Province, China

October 2016

The effects of long-term fertilizer management on soil enzyme activities and soil microbe population under double-cropping paddy fields in southern China was studied. The purpose of this study was to explore the changes of soil enzyme activities and soil microbe population as related to mineral fertilizer and manure and rice residue based on a long-term field experiment. The experiment was initiated in 1986 and...

Author(s): Haiming Tang, Xiaoping Xiao, Jimin Sun , Lijun Guo, Ke Wang, Weiyan Li and Wenguang Tang

Campylobacter in sheep, calves and broiler chickens in the central region of Algeria: Phenotypic and antimicrobial resistance profiles

October 2016

The study was conducted in four slaughterhouses in Bouira Province, central region of Algeria. Campylobacter in the main food animals (sheep, calves and broilers) were studied to evaluate the prevalence, phenotypic characteristics and antibiotic susceptibility of isolated strains. Out of 200 sheep, 200 calves and 100 broilers swab samples collected. 150 strains were isolated and identified. A study of sensitivity to 14...

Author(s): Meryem Guessoum, Zehor Guechi, Fares Aigoun, Sadjia Mahrane and Amina Hachemi

Effectiveness of augmented consortia of Bacillus coagulans, Citrobacter koseri and Serratia ficaria in the degradation of diesel polluted soil supplemented with pig dung

October 2016

Laboratory studies were developed to compare the effectiveness of inoculated bacteria consortia and indigenous microorganisms on diesel-polluted soil for 18 days. Bacteria isolated from the unpolluted soil sample were: Pseudomonas spp. (LBI), Pseudomonas cepacia (LB5), Micrococcus luetus (LB2), Bacillus subtilis (LB3) and Bacillus cereus (LB4). Their ability to degrade different substrates were first studied by the...

Author(s): Fagbemi O. Kehinde and Sanusi A. Isaac

Phenotypic and genotypic characterization of Pseudomonas aeruginosa isolates from Egyptian hospitals

October 2016

Pseudomonas aeruginosa (P. aeruginosa) is an opportunistic pathogen and a leading cause of hospital- acquired infections. Characterization of the isolates from different infection sites might help to control infections caused by the pathogen. The aim of the present work is to characterize P. aeruginosa isolates recovered from different clinical specimens at two hospitals in Cairo with regard to their antibiogram,...

Author(s): Marwa M. Raafat, Marwa Ali-Tammam and Amal E. Ali,

Bacterial association and oral biofilm formation: A bibliometric analysis

October 2016

Biofilms are complex aggregations of microorganisms formed in any situation where there is contact with superfaces solids, liquids or gases. This study aims to map the international scientific literature on the formation, bacterial adhesion, prevention and treatment of oral biofilms. There were 921 published articles in 274 different journals indexed in the Web of Science, in the 1991-2015 year period. These articles...

Author(s): Luana Kelle Batista Moura, Fabrício Ibiapina Tapety, Mitra Mobim, Eliana Campelo Lago, Eduardo Souza de Lobão Veras, Carla Maria de Carvalho Leite Leal Nunes, Tanit Clementino Santos and Thiago Lima Monte

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