John Lawrence Seminar Series

For information about JL Talks or the JL Series contact mroach@lbl.gov, 510-486-6050.

2023-2024 Seminar Series

Gina Bouchard, Ph.D.

Postdoctoral Fellow

Stanford University

Spatial Biology of Tumor-Stroma Assembloids Reveals that "Nothing is Lost, Nothing is Created, Everything is Reorganized”



POSTPONED UNTIL January 2023

Calendar Event: TBD


Host: Antoine Snijders, Biological Systems & Engineering Division

Bess B. Ward, Ph.D.

Professor

Princeton University

Spatial Biology of Tumor-Stroma Assembloids Reveals that "Nothing is Lost, Nothing is Created, Everything is Reorganized”



POSTPONED UNTIL January 2023

Calendar Event: TBD


Host: Antoine Snijders, Biological Systems & Engineering Division

Anaerobic Nitrite Oxidation in the Ocean

Oxidation of nitrite to nitrate, the second step in nitrification, is thought to be an obligately aerobic process. Using data from stable isotope tracer experiments and metagenomics, I will make the case that nitrite oxidation occurs in the absence of oxygen in some regions of the ocean.  The microbes responsible appear to be a clade of Nitrospina that is restricted to anoxic environments, and is distinct from the Nitrospina that are the most abundant nitrite oxidizers in the rest of the ocean.  Oxidation of nitrite leads to its retention in the system as nitrate, rather than being lost from the fixed N pool as N2, and thus compels a re-evaluation of the fate of N in anoxic environments.


January 10 at 4:00 PM (PT)

Calendar Event: Linked Here


Host: Susannah Tringe, Environmental Genomics & Systems Biology Division


Past JL Talks