| caldicellulosiruptor obsidiansis sp. nov., an anaerobic, extremely thermophilic, cellulolytic bacterium isolated from obsidian pool, yellowstone national park. | a novel, obligately anaerobic, extremely thermophilic, cellulolytic bacterium, designated ob47(t), was isolated from obsidian pool, yellowstone national park, wy. the isolate was a nonmotile, non-spore-forming, gram-positive rod approximately 2 microm long by 0.2 microm wide and grew at temperatures between 55 and 85 degrees c, with the optimum at 78 degrees c. the ph range for growth was 6.0 to 8.0, with values of near 7.0 being optimal. growth on cellobiose produced the fastest specific growth ... | 2010 | 20023107 |
| ferrimicrobium acidiphilum gen. nov., sp. nov. and ferrithrix thermotolerans gen. nov., sp. nov.: heterotrophic, iron-oxidizing, extremely acidophilic actinobacteria. | two novel extremely acidophilic, iron-oxidizing actinobacteria were isolated, one from a mine site in north wales, uk (isolate t23(t)), and the other from a geothermal site in yellowstone national park, wyoming, usa (y005(t)). these new actinobacteria belong to the subclass acidimicrobidae, and in contrast to the only other classified member of the subclass (acidimicrobium ferrooxidans), both isolates were obligate heterotrophs. the mine site isolate was mesophilic and grew as small rods, while ... | 2009 | 19406797 |
| ct2108a and b: new fatty acid synthase inhibitors as antifungal agents. | a systematic screen for new natural products that displayed antifungal activity by inhibition of fungal fatty acid synthase (fas) led to the discovery of two new fungal metabolites, designated ct2108a (1) and ct2108b (2). the metabolites were produced by penicillium solitum (westling) strain ct2108 and were classified as azaphilones. the structures of these new metabolites were determined using a variety of 1d and 2d nmr experiments, including cosy, hmqc, and hmbc. the chemical conversion of ct2 ... | 2003 | 12932120 |
| sulfurihydrogenibium yellowstonense sp. nov., an extremely thermophilic, facultatively heterotrophic, sulfur-oxidizing bacterium from yellowstone national park, and emended descriptions of the genus sulfurihydrogenibium, sulfurihydrogenibium subterraneum and sulfurihydrogenibium azorense. | a novel thermophilic, sulfur-oxidizing gram-negative bacterium, designated strain ss-5t, was isolated from the calcite hot springs in yellowstone national park, usa. the cells were motile rods (1.2-2.8 microm long and 0.6-0.8 microm wide). the new isolate was a facultative heterotroph capable of using elemental sulfur or thiosulfate as an electron donor and o2 (1-18 %; optimum 6 %, v/v) as an electron acceptor. hydrogen did not support growth. the isolate grew autotrophically with co2. in additi ... | 2005 | 16280480 |
| thermosinus carboxydivorans gen. nov., sp. nov., a new anaerobic, thermophilic, carbon-monoxide-oxidizing, hydrogenogenic bacterium from a hot pool of yellowstone national park. | a new anaerobic, thermophilic, facultatively carboxydotrophic bacterium, strain nor1(t), was isolated from a hot spring at norris basin, yellowstone national park. cells of strain nor1(t) were curved motile rods with a length of 2.6-3 microm, a width of about 0.5 microm and lateral flagellation. the cell wall structure was of the gram-negative type. strain nor1(t) was thermophilic (temperature range for growth was 40-68 degrees c, with an optimum at 60 degrees c) and neutrophilic (ph range for g ... | 2004 | 15545483 |