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Pioneer Discovery of secondary gold deposits-unique bacterioforms andplacers in north Goa from deep coremetabiosphere 17
Nandkumar M. Kamat.
Bacterioform secondary gold deposits were discovered in tilloid overlaying archaean base rock (metagraywacke) in Sanvordem rock formation, at the depth of 65 metres in north Goa , India and were confirmed optically as microbiogenic Gold. Multiple and unique forms were seen. This is claimed to be first report of bacterioform Gold in deep cores in Goa, India and Asia.
Tipo: Presentation Palavras-chave: Biotechnology; Chemistry; Ecology; Genetics & Genomics; Microbiology; Earth & Environment; Evolutionary Biology.
Ano: 2011 URL: http://precedings.nature.com/documents/5497/version/1
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Exploring hidden dimensions of soil fungal biodiversity: A simple technique to detect soil fungi resistant to antifungal compounds 17
Sonashia Velho-Pereira; Nandkumar M. Kamat.
Soils are known to be ultimate and complex reservoirs of microbial diversity. The complex dimensions of bacterial and fungal diversity in tropical soils and microbial community dynamics are underexplored. Isolation techniques aimed at Actinomycetes generally employ highly selective media, powerful antibiotics and antifungal compounds to suppress undesirable bacteria and fungi. However some soil fungi may show their resistance towards these antifungal compounds. During our work to explore soil actinomycetes diversity, slides coated with Arginine Vitamin agar (AVA) incorporating a cocktail of antibiotics and antifungal compounds such as Nystatin, Cycloheximide, Terbinafin, Griseofulvin, and Fluconazole were exposed to soil environment and were retrieved at...
Tipo: Poster Palavras-chave: Microbiology.
Ano: 2010 URL: http://precedings.nature.com/documents/4208/version/1
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Digital Image Analysis of Actinomycetes Colonies as a Potential Aid for Rapid Taxonomic Identification 17
Sonashia Velho-Pereira; Nandkumar M. Kamat.
High frequency isolation of actinomycetes poses a challenge for the taxonomists hence simple and rapid identification methods are required. Our work to catalogue biodiversity of actinomycetes of Goa yielded several distinct morphotypes. After their tentative identification, the feasibility to distinguish these using digital image analyses (DIA) was explored. Digital images of wild colony morphotypes were processed using public domain SCION image analysis software. DIA revealed some intricate digital characters. A combination of these with standard morphological and microscopic characters could be potentially useful for preparing a digital identification key of the actinomycetes strains with potential application in rapid taxonomic identification.
Tipo: Manuscript Palavras-chave: Microbiology.
Ano: 2010 URL: http://precedings.nature.com/documents/4209/version/1
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