| halorhabdus utahensis gen. nov., sp. nov., an aerobic, extremely halophilic member of the archaea from great salt lake, utah. | strain ax-2t (t = type strain) was isolated from sediment of great salt lake, utah, usa. optimal salinity for growth was 27% (w/v) nacl and only a few carbohydrates supported growth of the strain. strain ax-2t did not grow on complex substrates such as yeast extract or peptone. 16s rrna analysis revealed that strain ax-2t was a member of the phyletic group defined by the family halobacteriaceae, but there was a low degree of similarity to other members of this family. the polar lipid composition ... | 2000 | 10826803 |
| production of beta-xylanase and beta-xylosidase by the extremely halophilic archaeon halorhabdus utahensis. | the extremely halophilic archaeon, halorhabdus utahensis, isolated from the great salt lake, utah, produced beta-xylanase and beta-xylosidase activities. both enzymes were active over a broad nacl range from near zero to 30% nacl when tested with culture broth. a broad nacl optimum was observed for beta-xylanase activity between 5% and 15% nacl, while beta-xylosidase activity was highest at 5% nacl. almost half of the maximum activities remained at 27%-30% nacl for both enzyme activities. when d ... | 2003 | 12664260 |