| phylogenetic diversity of bacteria isolates from the qinghai-tibet plateau permafrost region. | the qinghai-tibet plateau in east asia is a unique and important permafrost environment. however, its microbiology remains largely unexplored to date. in this study, sediment samples were collected from the qinghai-tibet plateau permafrost region, bacteria isolation procedures were performed 8 times, and the samples incubated at 4 degrees c for nearly 3 months. the number of colony forming units (cfu) ranged from 0 to 10(7)/(g dry soil). the quantity of culturable bacteria grew exponentially wit ... | 2007 | 17898857 |
| microbial diversity in sediments of saline qinghai lake, china: linking geochemical controls to microbial ecology. | saline lakes at high altitudes represent an important and extreme microbial ecosystem, yet little is known about microbial diversity in such environments. the objective of this study was to examine the change of microbial diversity from the bottom of the lake to sediments of 40 cm in depth in a core from qinghai lake. the lake is saline (12.5 g/l salinity) and alkaline (ph 9.4) and is located on the qinghai-tibetan plateau at an altitude of 3196 m above sea level. pore water chemistry of the cor ... | 2006 | 16400537 |