Department Lecture - Chris Dupont (JCVI)

Speaker: 
Chris Dupont (JCVI)
Date: 
Wednesday, May 5, 2021 - 4:00pm to 5:00pm
Location: 
Virtual via Zoom

Interactions between microbes and iron in the euphotic ocean

Iron (Fe) is an essential nutrient for all non-viral life.  During the bulk of Earth’s history, Fe was abundant in the global oceans, but subsequent oxidation resulting in vanishingly low concentrations in much of the surface ocean.  Microbes therefore had to evolve compensating mechanisms which have modern day geochemical and human health implications. I will present several recent or soon to be published studies examining Fe limitation of both photosynthetic and heterotrophic microbes in both field and laboratory studies, as well as genetic and genomic examinations of siderophore production by a model marine microbe. 

 

About this Series:

Weekly talks given by leading thinkers in the areas of geology, geophysics, geobiology, geochemistry, atmospheric science, oceanography, climatology, and planetary science. Lectures take place on Wednesdays from 4pm EST unless otherwise noted. For more information please contact: Maggie Cedarstrommaggie84@mit.edu.