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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1 to 3 of 3 (0.095 seconds)Spelling suggestions: "subject:"extremophiles microorganisms"" "subject:"extremophile microorganisms""
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Identifikace mikrobiálních pigmentů v evaporitech pomocí Ramanovy spektroskopie: využití v astrobiologii / Identification of microbial pigments in evaporites using Raman spectroscopy: implications for astrobiologyVítek, Petr January 2010 (has links)
Raman spectroscopy is a powerful tool for identification both inorganic and organic compounds including microbial biomolecules. Together with the fact, that it is considered to be the important nondestructive instrument for use on Mars within future robotic missions, it is necessary to assess its capabilities in scenarios relevant for both Martian and terrestrial conditions. In this work, the potential of Raman spectrometry was tested - including both bench-top laboratory systems as well as portable counterparts - to detect traces of life within evaporitic matrices through biomolecular identification. Due to their chemical and physical nature resulting in optical properties, pigments are important organic compounds in Raman spectroscopic analysis using visible excitation. Hence in this work we have focused on the Raman spectroscopic identification of pigments as biomarkers with relevance for investigation of life in both extreme terrestrial and potentially extraterrestrial environments. Results of methodical work are presented in Appendices I to III, dealing particularly with β-carotene as a model carotenoid pigment. The concentration limits of this biomarker in three different evaporitic matrices (halite, gypsum and epsomite) have been determined for artificially prepared powdered mixtures alone...
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Untersuchungen zur Wirkstoffproduktion extremophiler Mikroorganismen sowie Biosynthese und Derivatisierung ausgewählter mikrobieller Naturstoffe / Investigations on the Production of Bioactive Metabolites by Extremophilic Microorganisms as well as Biosynthesis and Derivatization of Selected Microbial Natural ProductsKubicek-Pejic, Adrijana 31 October 2007 (has links)
No description available.
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Struktur und Biosynthese von Collinolacton aus Streptomyces sp. und Beiträge zum Screening neuer Wirkstoffe / Structure and biosynthesis of collinolactone from Streptomyces sp. and contributions to the screening of new active agentsHoffmann, Luise 03 May 2006 (has links)
No description available.
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