Spore UV and acceleration resistance of endolithic Bacillus pumilus and Bacillus subtilis isolates obtained from Sonoran desert basalt: implications for lithopanspermia |
| |
| Authors: | Benardini James N Sawyer John Venkateswaran Kasthuri Nicholson Wayne L |
| |
| Institution: | Department of Veterinary Science and Microbiology, University of Arizona, Tucson, Arizona, USA. |
| |
| Abstract: | Bacterial spores have been used as model systems for studying the theory of interplanetary transport of life by natural processes such as asteroidal or cometary impacts (i.e., lithopanspermia). Because current spallation theory predicts that near-surface rocks are ideal candidates for planetary ejection and surface basalts are widely distributed throughout the rocky planets, we isolated spore-forming bacteria from the interior of near-subsurface basalt rocks collected in the Sonoran desert near Tucson, Arizona. Spores were found to inhabit basalt at very low concentrations (
|
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
