The Natural Science Department at Plymouth State College will host a lecture by Dr. David Smith at 7 p.m. Tuesday, October 22. The lecture topic is, “Life in Marine Sediments: Probing the Limits of Earth’s Deep Biosphere.”
The presence of an active microbial community inhabiting deeply buried marine sediments has previously been inferred from studying chemical compounds involved in microbial metabolism, However, scientific advances now allow microbiologists to better understand what controls microbial distribution and activity, and consequently, their biogeochemical impact in the marine subsurface. These efforts will provide insights into the adaptations of microorganisms to this environment and will help define the limits of the deep biosphere on Earth.
Smith is a marine microbiologist at the Graduate School of Oceanography, University of Rhode Island. His lecture, which is open to the public free of charge, will be presented in Hyde Hall room 214. For information contact Dr. Larry Spencer at 535-2322.