Environmental Microbiology Research Initiative seminar - A new view of the tree of life and the roles of novel lineages in subsurface biogeochemistry

Seminar/Forum

Environmental Microbiology Research Initiative seminar - A new view of the tree of life and the roles of novel lineages in subsurface biogeochemistry

The terrestrial subsurface has been one of the least explored of Earth's environments.  We have been using genome-resolved metagenomic approaches to explore the biology of soils, sediments, groundwater and deep subsurface environments and have found an astonishing diversity of bacteria and archaea from little known or unknown lineages.  Genomic information has helped to define major sub-domains of the tree of life and to constrain the metabolic potential of community members. We find evidence that metabolic handoffs link a shifting array of distinct community members. We predict that obligate symbioses are common and that the symbionts have unexpected biological characteristics, including unusual ribosome compositions, introns in RNA genes and interesting phage defense strategies that include previously unknown minimal CRISPR-Cas systems of technological interest.

Hosted by the Environmental Microbiology Research Initiative.

Presenter

  • Professor Jill Banfield
    Professor Jill Banfield, University of California Berkeley