August 2014
Induction of chitinase, β-glucanase, and xylanase taken from Trichoderma sp. on different sources: A review
Biological control by antagonistic organisms is a potential nonchemical tool for crop protection against phytopathogenic fungi. Trichoderma spp. are the most commonly used biocontrol agent that are being used against many soil borne pathogens. The biocontrol mechanism of Trichoderma involves mycoparasitism, antibiosis and competition for key nutrients. Chitinase, xylanase and β-glucanase are the major cell...
August 2014
Scanning electron microscopy of biofilm formation by Staphylococcus aureus on stainless steel and polypropylene surfaces
Attachment of bacteria to food processing equipment surfaces can lead to product contamination, spoilage, and surface destruction. Most of bacteria in their habitat live in communities of different degrees of complexity, in general composing biofilms. Once installed the biofilm, the resistance of these sessile organisms increases, making it difficult thus the action of sanitizers. This multidisciplinary study led to the...
August 2014
Effect of N-acyl homoserine lactones (AHLs) quorum sensing signal molecules on Enterococcus faecalis biofilm formation
The Gram-positive bacterium Enterococcus faecalis is an etiological agent of endodontic infections in oral biofilms. In the present study, we analyzed the effect of N-acyl homoserine lactones (AHLs) quorum sensing signal molecules on E. faecalis biofilm formation ability. Our results provide important effects of N-Hexanoyl-L-homoserine lactone (C6-HSL) and N-octanoyl-L-homoserine lactone (C8-HSL) molecules on E....
August 2014
The inoculation of cowpea culture with rhizobial lineage in Brazilian Cerrado Region
Cowpea culture is spreading in the Brazilian Cerrado Region and specifically in Mato Grosso State. To evaluate the productive characteristics of cowpea inoculated with rhizobia lineages and grown in the Cerrado of Mato Grosso State, we conducted an experiment in a randomized block design with seven treatments, which consisted of five rhizobia lineages. Four lineages were previously isolated from cowpea (MT08, MT15, MT16...
August 2014
Serotyping and antimicrobial susceptibility of Salmonella isolated from children under five years of age with diarrhea in rural Burkina Faso
Diarrheal infections are an important public health problem worldwide but there is limited information on the molecular characteristics of responsible agents in Burkina Faso, especially in the countryside. The objective of this study was to investigate the prevalence, serotypes and antibiotic susceptibility patterns of Salmonella enterica in diarrheal children in rural areas. Stool specimens were collected from 400...
August 2014
Conidial production of Beauveria bassiana on agricultural products and effect of storage temperature on its formulations
Rice, wheat, maize, sorghum, mini potato tubers, rice bran and rice straw were evaluated for mass production of three Beauveria bassiana (Balsamo) Vuillemin strains. Results show rice as the most suitable substrate for examined fungi as it yielded highest conidial count (31.8×105 conidia/g) and colony forming unit (30.5 × 105 cfu/g) whereas rice straw recorded minimum conidial count (12.2×105 cfu/g)...
August 2014
Isolation and molecular Identification of fungi associated with the spoilage of farms fruit in Southern Côte d’Ivoire
The spoilage of pawpaw (Carica papaya L.), pepper (Capsicum sp.) and tomato (Lycopersicon esculentum) from three selected farms in Agboville area, south of Côte d’Ivoire were investigated. 50 samples of each type of fruit (pawpaw, pepper and tomato) showing spoilage signs were examined for the presence of fungal pathogens inducing spoilage. Eight fungal species, Mucor velutinosus, Meyerozyma guilliermondii,...
August 2014
New records and new distribution of known species in the family Orbiliaceae from China
The family Orbiliaceae belongs to Orbiliales, Orbiliomycetes, Pezizomycotina and Ascomycota. It presently includes Orbilia, Hyalorbilia, and Pseudorbilia, which have caused more attention in due that some members of their 10 anamorphic genera are the nematode-trapping fungi. During the survey of the distribution of Orbiliaceae since the summer of 2005, three new records including Orbilia xanthostigma, Orbilia...
August 2014
Isolation and characterization of Chilembwe and Sinda rock phosphate solubilizing soil microorganisms
This study was conducted to isolate and characterize soil microorganisms capable of solubilizing Chilembwe and Sinda rock phosphates readily available in Zambia. Single isolates were obtained by direct plating and enrichment cultures with succinate, cellulose and glucose as the carbon sources. Isolates were differentiated using colony morphology (form, margin, elevation and colour) and a subset of 20 was chosen for...
August 2014
Genetic diversity and plant growth promoting activity of salt tolerant rhizobacteria from rice (Oryza sativa L.) rhizosphere
Rhizobacteria are possible alternative to chemical fertilizers and used to manage phyto-pathogens. In this study, rhizobacteria isolated from rice rhizosphere of coastal agriculture system of South Andaman, India were evaluated in vitro for their plant growth promoting property (PGP), antagonistic activity and genetic diversity using PCR-RFLP. From 63 isolates, 35 were positive for salt tolerance of upto 0.5 M NaCl and...
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