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 16 of 16 for “"Sphingomonas"”.
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Comparative genomics of bacteria from amphibian skin associated with inhibition of an amphibian fungal pathogen Batrachochytrium dendrobatidis
… we identified a predicted chitinase in a Sphingomonas isolate that inhibited the growth of Bd that was absent from the five Sphingomonas isolates that did not inhibit Bd growth. The genes vioA, vioB, vioC, vioD and vioE are necessary to produce violacein, a compound which inhibits the …
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Exploring Interactions of Phyllosphere Epiphytes with Plant Pathogenic Bacteria Pseudomonas and Xanthomonas on Tomato
… microbiome, <em>Methylobacterium</em> and <em>Sphingomonas</em> have been recognized as common residents of the <em>phyllosphere</em> for many host plants, however their role in disease control needs to be further investigated. The purpose of this study was to conduct experiments investigating …
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Isolation And Characterization Of Soil Microorganisms Capable Of Utilizing Used Motor Oil For Growth
… were Pseudomonas, Xanthomonas, Methylobacterium, Sphingomonas, Aspergillus, and Eupenicillium.
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Microbial monitoring and degradation of lindane in soil
… could subsequently be isolated, which were all Sphingomonas spp.. All isolates degraded α- and γ-HCH, while degradation of β- and δ-HCH was highly strain dependent. However, none of the isolates grew on HCH as a sole organic substrate in pure culture. DGGE analyses evaluated whether enrichment …
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Analogue enrichment of aromatic degradation through application of lignin-derived phenols
… phyla. Specifically, these bacteria are Sphingomonas spp, Sphingobium spp, Bradyrhizobium spp, and Brevundimonas spp. These group of bacteria are found to have naphthalene dioxygenase genes upon extrapolation with hmmer software package. This study can contribute effectively to the …
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Engineering of an efficient and enantioselective biocatalyst for the preparation of chiral pharmaceutical intermediates
… target enzyme is the novel P450pyr enzyme from Sphingomonas sp. HXN-200 that was found to catalyze the regio- and stereoselective hydroxylation of non-activated carbon atom with broad substrate range, high activity, excellent regioselectivity, and good to excellent enantioselectivity. Our target …
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Investigation of bacteria associated with Australian wine grapes using cultural and molecular methods
… Bacillus, Microbacterium, Pantoea, Pseudomonas, Sphingomonas) were sporadically found on grapes. Lactic acid bacteria and acetic acid bacteria were rarely detected on undamaged grapes by culture and PCR-DGGE methods. A greater incidence of lactic acid bacteria was detected by specific enrichment …
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Structure-Activity Studies of Glycosphingolipids as Antigens of Natural Killer T Cells
… derived from Novosphingobium capsulatum and Sphingomonas paucimobilis have also been made. In assays with classical Valpha14i/Valpha24i NKT cell lines, these Gram-negative bacterial antigens were recognized directly and specifically by host immune systems through CD1d-restriction, unlike …
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Bacteriome interactions in pediatric atopic dermatitis in a rural and urban South African cohort
… skin, and Staphylococcus, Veillonella and Sphingomonas in the anterior nares among cases Overall, the findings presented in this thesis indicate that S. aureus and other CoNS, particularly S. capitis, may predominate among cases and are associated with increased disease severity. However, …
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GRAPEVINE-ASSOCIATED MICROORGANISMS AS BIOCONTROL AGENTS AGAINST THE PROLIFERATION OF PATHOGENIC FUNGI
… 72 fungal species, highlighting genera such as Sphingomonas and Cladosporium. Biodiversity analysis showed variability in microbial communities related to grapevine species, vineyard management, and geography, but no significant differences were found. Chapter 2 assesses the biocontrol efficacy …
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Utilizing Beneficial Bacterial Endophytes to Promote Switchgrass Growth in Low- input Agricultural Production Systems
… switchgrass feedstock production systems. Sphingomonas sp. strain NSL isolated from switchgrass tissue was able to grow on nitrogen free medium and stimulated growth of switchgrass cv. Alamo under nitrogen deficient conditions. The ability to fix atmospheric nitrogen was also moved to …
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PHYTOPLASMAS-ENDOPHYTES INTERACTIONS: THE CASE STUDY OF GRAPEVINE YELLOWS RECOVERY
… Agrobacterium, Brevibacillus, Staphylococcus, Sphingomonas, Acaricomes, and Enterococcus. Length Heterogeneity-PCR (LH-PCR) electrophoretic peaks from single bacterial clones were used to setup a database representing the bacterial endophytes identified in association with grapevine tissues. …
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Elucidating the Role of Toxin-Induced Microbial Stress Responses in Biological Wastewater Treatment Process Upset
… not the increase in bulk liquid K+. Sphingomonas capsulata, a bacterium consistent with that found in biological wastewater treatment systems, Escherichia coli K-12, and activated sludge cultures exhibited very similar dynamic efflux/uptake/efflux responses due to the electrophilic …
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Identification, Characterization, and Use of Precipitation-borne and Plant-associated Bacteria
… sequencing, I identified the genera Massilia, Sphingomonas, Methylobacterium, Pseudomonas, Acidiphilium, and Pantoea as members of the core rain microbiome in Blacksburg, VA. Further, I used rainwater as a bacterial inoculum to treat tomato plants. I showed that rain-borne bacteria of the …