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 13 of 13 for “"halotolerant"”.
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Evaluation of biomass from the halotolerant microalga Dunaliella salina as an animal feed additive with immune-modulatory activity
The work presented in this thesis sought to evaluate the potential of microalgal biomass sourced from Dunaliella salina for use as an animal feed additive. Dunaliella salina is the richest known source of carotenoid pigments and anti-oxidants, and these have a variety of uses including as food …
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Molecular analysis of the Vibrio alginolyticus sucrose utilization system cloned into Escherichia coli
… system of the aerobic, collagenolytic, halotolerant, Gram-negative bacterium Vibrio alginolyticus. The V. alginolyticus sucrose utilization system originally cloned into Escherichia coli on plasmid pVS100 involves a sucrase enzyme (gene scrB), and a sucrose uptake system. Synthesis of …
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A study of salt tolerance in Arabidopsis thaliana and Hordeum vulgare
… into the mechanisms that confer halotolerance. Halotolerant and salt sensitive cell lines were derived from the model glycophyte Arabidopsis thaliana; in addition cell suspension cultures from the dicot halophytes Beta vulgaris and Atriplex halimus were also generated. Unfortunately, severe …
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Studies on the Vibrio alginolyticus sucrose utilization system cloned into Escherichia coli
… biology of the aerobic, collagenolytic, halotolerant, gram-negative organism Vibrio alginolyticus. The cloning, expression and regulation of the v. alginolyticus sucrose utilization system in Escherichia coli is discussed and the results of a molecular analysis of the sucrase gene (scrA) …
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Bacterial Diversity of the Atacama Desert, Chile: The Challenges of Characterizing the Community Dynamics of Extreme Oligotrophic Ecosystems
… harboring a combination of radiotolerant and halotolerant heterotrophs as wells as diverse phylotypes closely related to chemolithoautotrophs. These rare phylotypes may be uniquely adapted to arid ecosystems. Molecular tools evaluated for community diversity analysis included PCR-DGGE, …
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Wastewater treatment by novel hybrid biological – ion exchange processes
… Using the regenerant brine for subsequent halotolerant algae growth allowed for its repeated use, which could lead to cost savings and production of valuable algal biomass. The algae were able to uptake all ammonium in solution, and the brine was able to be used again with no loss in …
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Bioethanol Production from Macroalgae
… salinity can negatively affect non-halotolerant enzymes, isolation of marine microorganisms was therefore carried out with the aim to highlight their enzymatic potential in seaweed saccharification. This was achieved through the isolation of two members of the genus …
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Ancient Triassic Halite as a novel source of antibiotic chemical diversity
… in a collection of 51 Haloarchaea and 10 halotolerant Actinobacteria isolates.<br/><br/>Crude extracts from these haloarchaea and bacteria isolates, alongside 16 extremophilic fungi were investigated for antimicrobial activity against the ESAKPE pathogens and QSI production. The screening …
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Glycerol from novel strains of halophytic microalgae
… explored glycerol production in new strains of halotolerant microalgae Dunaliella (T35, T36 and T37) and Asteromonas (T33a, T33b and T33c) obtained from Namibia. The aim was to: (a) Determine the optimum conditions of pH value, temperature and salinity on the specific growth rate and doubling …
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Culturing and processing of Dunaliella for enrichment of enzymatic antioxidants
… damage. The high adaptability of this halotolerant Dunaliella makes this alga a promising and a sustainable natural source of antioxidant enzymes (catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD)). To enhance enzymatic activity in Dunaliella, and increase its commercial …
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Phylogenetic and physiological characterization of deep-biosphere microorganisms in El’gygytgyn Crater Lake sediments
… habitats. The predominated taxon was the halotolerant genus Halomonas (in average 60% of the total reads per sample). Additionally, this doctoral thesis focuses on the live/dead differentiation of microbes in cultures and environmental samples. While established methods (e.g., fluorescence …
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Metagenomanalyse eines hydrolytischen Konsortiums: Identifizierung und biochemische Charakterisierung von Polysaccharid-abbauenden Biokatalysatoren aus nicht kultivierten Mikroorganismen
… gefunden.Eine neuartige, äußerst stabile und halotolerante Cellulase wurde zudem einer genauen biochemischen Charakterisierung unterzogen.