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 25 for “"Micromonospora"”.
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Investigations into actinomycetes isolated from coastal environments, with a special emphasis on the genus Micromonospora
… strains were isolated and identified: 21 Micromonospora strains, 10 Streptomyces strains, and 3 Pseudonocardia strains. A polyphasic approach was employed to determine the novelty of the isolates. Potentially, all 21 Micromonospora strains are novel, as revealed by an original …
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The Laccase from Micromonospora sp.044 30-1 as a biocatalyst for synthesis of antioxidant compounds
… Rhodococcus, Mycobacterium, Amycolatopsis, and Micromonospora were screened. This is the first report of laccase production in these species. A screening protocol, using criteria specifically suited to bioprocess development, was developed to investigate variables affecting the production of …
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The characterisation of actinomycetes isolated from diverse South African sources, with emphasis on the genus Kribbella
… to the genera Gordonia, Kineococcus, Kribbella, Micromonospora, Nocardia and Streptomyces were selected for full characterisation. A polyphasic approach combining physiology, chemotaxonomy and phylogenetic analysis was used to characterise these isolates. A number of potentially novel strains …
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A metabolomics approach for targeted isolation and production of bioactive secondary metabolites in microbial isolates from extreme environments
… intertidal pools in Iceland and two strains of Micromonospora sp. N17 and N74 (SBT 687 and SBT692) were isolated from the Mediterranean sponge Phorbas tenacior from the Santorini volcanic complex of Crete. Bioactive metabolites production in thermophile strains of M. ruestringensis (SBT531 and …
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Isolation and characterisation of antibiotic-producing marine actinomycetes
… shown by the same methods to belong to the genus Micromonospora. Partial purification of the active compounds was carried out on the three strains exhibiting strong antibacterial activity. All were shown to produce moderately to highly polar compounds.
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Towards the Total Synthesis of Antascomicin B. Efforts to Construct the C1-C21 Fragment
… B is a macrolide isolated from a strain of <em>Micromonospora</em>. It possesses structural similarities to FK506 and rapamycin and exhibits potent binding ability to FKBP12. Recent reports suggest that small molecule ligands of FKBP12 possess potent neuroprotective and neurodegenerative …
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Analysis of actinobacterial biodiversity in reservoir sediment and cave soil and screening of isolates for antimycobacterial activity
… strain, one Streptacidiphilus strain, one Micromonospora strain and 26 Streptomyces strains. The phylogenetic position of each identified strain within its genus was investigated by generating a phylogenetic tree based on its 16S-rRNA gene sequence. Further analysis of the Streptacidiphilus …
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The effect of environmental stress on antibiotic production by streptomyces
… as members of the genera; Streptomyces, Micromonospora and Methylobacterium. Amongst those, isolate identified as Streptomyces narbones is presented activity against a clinical isolate of carbapenem-resistant Acinetobacterbaumannii. In Addition, Streptomyces puniceus presented a unique …
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Antimicrobial activities and diversity of sponge derived microbes
… of producing novel secondary metabolites. A Micromonospora sp. was isolated from a Haliclona simulans sample collected in Irish waters. The isolate inhibited the growth of Gram positive bacterial test strains in three different antimicrobial assays. Employing preparative layer chromatography …
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The role of actinomycetes in the biodeterioration of wood
… spp., Nocardia spp., Streptosporangium spp., Micromonospora spp., and Microbispora spp. were used to evaluate decay potential of actinomycetes in Pinus sylvestris L and Tilia vulgaris Hayne. Decay was assessed by weight loss and by micromorphological studies using light and scanning electron …
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Enzymology of Gentamicin Biosynthesis
… and C2b, produced by the actinomycete bacterium Micromonospora echinospora. It is established in clinical use and despite significant toxicity remains valuable to treat severe Gram-negative bacterial infections. There is a pressing need to develop novel versions of such antibiotics to combat the …
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Isolation, identification and characterisation of novel actinobacteria from Zambian hot-springs
… exploited, members of other genera including Micromonospora have been shown to be a promising source of novel secondary metabolites and enzymes.The biocatalytic conversion of 5-monosubstituted hydantoin derivatives to optically pure amino acids involves two reaction steps. The first step, …
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Screening environmental actinobacteria for antimycobacterial antibiotics and characterisation of Kribbella stellenboschensis sp. nov
… and identified by an intern in the lab, and a Micromonospora strain, isolated and identified during the authors Honours project, were also screened for antimycobacterial activity. Sixty-four (64) actinobacterial isolates displayed moderate antibiotic activity or higher (ZOI >1001 mm2 ) based on …
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The application of actinobacterial extracts for plant growth promotion
… alongside two rare actinobacterial strains – Micromonospora and Thermomonosporaceae. Isolates were screened for both direct - (including ammonia production, siderophore production, and IAA activity) and indirect - (including antimicrobial activity and hydrolytic enzyme production such as …
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Structure, Synthesis and Biological Activity of Harmful Algal Bloom Toxins from Karlodinium sp. and Exploration of Microbial Derived Natural Products
… report of a sponge-associated bacterium (<italic>Micromonospora</italic> sp. M42) from the Indo-Pacific sponge <italic>Acanthostrongylophora ingens</italic> (Thiele, 1899) that produces the manzamine class of antimalarials is presented.
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Isolation and characterisation of indigenous actinobacteria from diverse South African environments
… antibacterial activity. These included four Micromonospora strains, three Kribbella strains, three Streptomyces strains, one Actinomadura strain, one Kineococcus strain, one Nocardia strain, one Nonomuraea strain and one Verrucosispora strain. Two previously isolated Microbispora strains were …
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