Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 36 for “"culture collection"”.
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Biomass productivity enhancement and extraction of high values products of an extremophile microalga from SCCA culture collection
… melkonianii SCCA 048, belonging to the Sardinian Culture Collection of Algae (SCCA), is a green extremophile microalga found in a mine drainage habitat and characterized by the ability to live in highly selective environments with extreme conditions, such as high concentrations of heavy metals. …
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Diversity of the marine cyanobacterium Trichodesmium : characterization of the Woods Hole culture collection and quantification of field populations
… in Trichodesmium, I characterized cultured strains of Trichodesmium, identified and enumerated Trichodesmium clades in the field, and investigated P stress and N2 fixation in field populations. Species of Trichodesmium grouped into two clades based on sequences from 16S rDNA, the …
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Diversity of the marine cyanobacterium Trichodesmium : characterization of the Woods Hole culture collection and quantification of field populations
… in Trichodesmium, I characterized cultured strains of Trichodesmium, identified and enumerated Trichodesmium clades in the field, and investigated P stress and N2 fixation in field populations. Species of Trichodesmium grouped into two clades based on sequences from 16S rDNA, the …
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Rhizoctonia disease of soybeans and its potential biological control by Bacillus megaterium
… This isolate was deposited at The American Type Culture Collection as ATCC 66489.
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Characterization of the Surface Proteins of the Anatid herpesvirus
… of the Holland strain of AHV (American Type Culture Collection No. VR684) was propagated in chicken embryo fibroblasts and purified by differential and buoyant density sedimentation through thtough sucrose gradients. A total of 17 putative virus proteins were consistently identified in both …
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Microalgae growing in stressed environments and their antioxidant potential from production of secondary metabolites
… as Coccomyxa sp. and Chlamydomonas sp., and a culture collection strain Chlamydomonas reinhardtii were tested using three antioxidant assays. Results showed that low pH conditions (pH 3.0) increased biomass production of Coccomyxa sp. but induced the death of C. reinhardtii. Under both pH 3.0 …
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The amino acid and monosaccharide content of the cell walls of Thiobacillus thiooxidans
… objectives of this investigation were: (a) to culture large quantities of Thiobacillus thiooxidans cells, (b) to find an acceptable method of rupturing the cells, (c) to find an acceptable method of isolating the cell walls, and (d) to analyze the cell wall components, especially the amino acid …
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Ecology, diversity and comparative genomics of oceanic cyanobacterial viruses
… cyanophages and the assembly of a culture collection established using a broadly diverse suite of Prochlorococcus and Synechococcus hosts. The collection contains three morphological families, Myoviridae, Podoviridae and Siphoviridae, known to infect marine bacteria and …
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Pulsed-field gel electrophoresis subtyping of salmonella isolates from carcasses, lymph nodes and fecal samples of cattle from slaughter facilities in Mexico
… patterns, 95 isolates from a Salmonella stock culture collection of the Food Microbiology Laboratory at Texas Tech University were analyzed; isolates were originally isolated from samples collected in Veracruz, Mexico in 2009. In addition, 33 confirmed Salmonella isolates from lymph nodes …
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Assessment of wastewater algae for use in biofuel production
… When comparing wastewater derived algae to culture collection strains there was no significant difference (p>0.05) in terms of growth rates under photoautotrophic and mixotrophic conditions. The strain Botrydiopsis B2N under mixotrophic (14mM glucose) possessed the highest growth rate …
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Biology and Control of Pepper Anthracnose
… with the type species from the American Type Culture Collection, and to evaluate fungicides for disease management. Two cultivars of pepper were inoculated with a conidial suspension, and held in a dew chamber. Lesions were counted and measured every 48 hours. The type species was either not …
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A polymerase chain reaction and denaturing gradient gel electrophoresis procedure for analysis of arbuscular mycorrhizal fungi in soil
… significant for productive low-input agriculture. Traditional spore morphology-based identification of AMF in biodiversity studies is subjective and requires expertise and time. Researchers have used molecular techniques to investigate community composition of AMF in uncultivated, …
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Shigella Boydii 18: Characterization and Biofilm Formation
… tolerant than the S. boydii ATCC (American Type Culture Collection) type strain in tryptic soy broth acidified with glacial acetic acid. These microorganisms were found to survive in bean salad for the duration of the shelf life of the salad. Shigella boydii ATCC and CDPH grow on parsley and …
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Characterising antibiotic susceptibility and resistance in human commensal gut bacteria
… clinical relevance and our previous inability to culture these commensal bacteria, the majority of research into antibiotic resistance has focused on pathogenic organisms or well-characterized antibiotic resistance mechanisms. Here, I demonstrate the existence of unpredicted antibiotic resistance, …
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Interactions between salmonella typhimurium and human gut bacteria
… investigated. Initially, experiments involved co-cultures of the pathogen and single strains of intestinal bacteria obtained from culture collections; results showed that when E. coli reached its maximum concentration density, the growth of S. Typhimurium was halted. S. Typhimurium was then …
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Intestinal absorption barriers as modelled by p-glycoprotein and cytochrome p450 a34 in caco2 cells
… passage number <40 from the American Type Tissue Culture collection. High P-gp expressing Caco-2 cells have been developed through stepwise selection of the cells with doxonibicin. This newly-developed cell line (hereafter referred to as Type I) possesses approximately twice as much P-gp protein …
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Proteomic Evaluation and Cytotoxicity of Red Maple (Acer rubrum) Leaves
… (RAW 264.7) cell line from American Type Culture Collection (ATCC). The drug Doxorubicin was used as a positive control whereas untreated cells as a negative control in these experiments Preliminary data revealed that active protein fractions were eluted at two different regions of gel …
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Antimalarials from Plant Pathogenic Fungi
… pathogenic fungi obtained from the American Type Culture Collection (ATCC) (Septoria pistaciarum, S. musiva, Phomopsis viticola, and Postia balsamea). Chapter 7 consists of four sections which describe the isolation and identification of active metabolites from four endophytic fungi (Xylaria sp., …
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Determining the characteristics of Xanthomonas cucurbitae bacterium from the North Central Region and developing effective seed treatment for eradication of the bacterium in pumpkin seeds
… and Wisconsin) were tested. The American Type Culture Collection (ATCC) strain 23378 was included in this study as positive control. The result showed that the range of minimum, maximum, and optimum temperatures for cell multiplication of X. cucurbitae were 4-6, 34-36, and 24-30°C, …
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Development of an eicosapentaenoic acid production bioprocess using an indigenous microalgal isolate
… and Industrial Research (CSIR) micro-algal culture collection. A Cymbella diatom (A23.2) was selected for superior EPA production in both growth and stress conditions, using both fluorescent microscopy and flask studies. Studies investigated increasing biomass, improving EPA content, and …
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