Observations suggest diazotrophs like Crocosphaera and Trichodesmium pay for their ability to fix nitrogen with a very low growth rate, yet diatom-diazotroph associations or DDAs exhibit high growth rates. CBIOMES postdoctoral fellow Chris Follett and co-authors use a cell flux model to test the hypothesis that diatom-diazotroph associations or DDAs grow faster than unpaired diazotrophs because the diatoms in DDAs provide organic carbon to their diazotroph guests that boost their growth rate. Continue reading
Keisuke Inomura, Christopher L. Follett, Takako Masuda, Meri Eichner, Ondřej Prášil and Curtis Deutsch (2020), Carbon Transfer from the Host Diatom Enables Fast Growth and High Rate of N2 Fixation by Symbiotic Heterocystous Cyanobacteria, Plants, doi: 10.3390/plants9020192 Continue reading
Look out for the Darwin team, sharing their work at this year’s Ocean Sciences conference taking place February 16-21 in San Diego, California.
Reporting by Helen Hill for the MIT Darwin Project
The fourth Workshop on Trait-Based Approaches to Ocean Life, held August 18-21, 2019 at Chicheley Hall in Buckinghamshire in the UK was a wonderful opportunity for Darwin Group members to catch up with former colleagues while sharing current directions in marine ecology viewed through a traits lens.
Look out for the Darwin team, sharing their work at this year’s Ocean Sciences conference taking place February 11-16 in Portland, Oregon. Continue reading
Chris Follett is an oceanographer interested in the interactions between the ocean’s biological and chemical systems. His educational background is in physics (BS, MIT), and chemical oceanography (PhD, MIT-WHOI). He joins the Darwin Project team to focus on the symbiotic relationships between nitrogen fixing cyanobacteria and diatoms. Continue reading