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Articles 31 - 34 of 34
Full-Text Articles in Bacteriology
Study Of Bacterial Diversity In The Oral Cavity Of Malaysian Subjects., Teoh Wuen Yew
Study Of Bacterial Diversity In The Oral Cavity Of Malaysian Subjects., Teoh Wuen Yew
Student Works (2010-2019)
About 700 species of bacteria can inhabit the human oral cavity. This project initially investigated the bacterial diversity within the oral cavity of Malaysian subjects by using culture-dependent techniques and 16S rDNA sequence analysis. The second part of the research profiled the antibiotic resistance of the identified oral bacteria by the Etest method. Three sampling sites of the oral cavity from nine healthy subjects were analyzed: the tooth surface, gingival crevice, and dorsum of the tongue. The tooth surface was shown to harbor 41 species, gingival crevice harbored 51 species and tongue dorsum 41 species. On average, each subject carried …
Thermocrinis Minervae Sp. Nov., A Hydrogen And Sulfur-Oxidizing, Thermophilic Member Of The Aquificales From A Costa Rican Terrestrial Hot Spring, Sara L. Caldwell, Yitai Liu, Isabel Ferrera, Terry Beveridge, Anna-Louise Reysenbach
Thermocrinis Minervae Sp. Nov., A Hydrogen And Sulfur-Oxidizing, Thermophilic Member Of The Aquificales From A Costa Rican Terrestrial Hot Spring, Sara L. Caldwell, Yitai Liu, Isabel Ferrera, Terry Beveridge, Anna-Louise Reysenbach
Biology Faculty Publications and Presentations
A thermophilic bacterium, designated strain CR11T , was isolated from a filamentous sample collected from a terrestrial hot spring on the south-western foothills of the Rincón volcano in Costa Rica. The Gram-negative cells are approximately 2.4–3.9 mm long and 0.5–0.6 mm wide and are motile rods with polar flagella. Strain CR11T grows between 65 and 85 6C (optimum 75 6C, doubling time 4.5 h) and between pH 4.8 and 7.8 (optimum pH 5.9–6.5). The isolate grows chemolithotrophically with S0 , S2O2{ 3 or H2 as the electron donor and with O2 (up to 16 %, v/v) as the sole electron …
Antagonistic Activity Of Selected Marine-Derived Streptomyces Spp. Against Plesiomonas Shigelloides., Angelyn Melaya Kloni
Antagonistic Activity Of Selected Marine-Derived Streptomyces Spp. Against Plesiomonas Shigelloides., Angelyn Melaya Kloni
Student Works (2010-2019)
In this study, primary and secondary screenings were conducted to evaluate the antibacterial and anti-yeast potential of the eleven selected marine-derived Streptomyces spp., particularly against P. shigelloides. The strains were categorized into three colour groups for morphological grouping according to the colour of aerial mycelium; namely grey, yellow green, and white colour groups. Diffusible pigments were produced by eight of the strains tested. Strain(s) from grey and white with red diffusible pigments colour groups displayed strong antibacterial activity. The yeasts tested were resistant to the bioactive metabolite(s) produced by some of the Streptomyces spp. which had shown high activity against …
An Evaluation Of Miru-Vntr Analysis And Spoligotyping For Genotyping Of Mycobacterium Bovis Isolates And A Comparison With Rflp Typing., Joanne Mclernon, Eamonn Costello, Orla Flynn, Gillian Madigan, Fergus Ryan
An Evaluation Of Miru-Vntr Analysis And Spoligotyping For Genotyping Of Mycobacterium Bovis Isolates And A Comparison With Rflp Typing., Joanne Mclernon, Eamonn Costello, Orla Flynn, Gillian Madigan, Fergus Ryan
Articles
Strain typing of Mycobacterium bovis isolates based on the variable-number tandem repeats of mycobacterial interspersed repetitive units (MIRU-VNTR) and on spoligotyping was evaluated in this study and these typing methods were compared with restriction fragment length polymorphism (RFLP) typing. A total of 386 M. bovis isolates from cattle, badgers and deer in the Republic of Ireland that had previously been typed by IS6110, polymorphic GC-rich sequence (PGRS) and direct repeat (DR) RFLP were included in the study. Spoligotyping and analysis of six VNTR loci (2163a, 2163b, 2165, 4052, 2996 and 1895) was performed on the samples. RFLP was the method …