Current Research Projects
Lipids as biomarkers for phytoplankton bloom decline mechanisms
Our lab is currently seeking funding to develop a lipid based index for surveying phytoplankton bloom decline mechanisms in the environment.
Lab Members: Will Kumler and Annie Leal
Using gene expression to study chemical signaling between marine microbes
Oxylipins are chemical signals produced by phytoplankton that impact the growth rate and respiration of bacteria, decrease copepod reproductive success, and inhibit the growth rate of microzooplankton grazers. We are using meta-transcriptomic analysis to understand how chemical signals produced by phytoplankton alter gene expression in bacteria and other phytoplankton.
Algal Biofuels and Natural Products
By more accurately understanding lipid biosynthesis is phytoplankton, we will explore maximizing the lipid quality of algal biofuel stocks, as well as, the production of natural products for drug discovery.
Lab Members: Hannah Krohn
Past Research Projects
Meta'omic analysis of sinking particles from 4000M at Station ALOHA
As a postdoc in Ed Delong's lab at the University of Hawaii-Manoa, I used meta-genomic and meta-transcriptomic analysis to explore the microbial communities colonizing particles that reach 4000m in North Pacific Subtropical Gyre.
Dominique Boeuf*, Bethanie R. Edwards, John M. Eppley*, Sarah K. Hu, Kirsten E. Poff, Anna E. Romano, David A. Caron, David M. Karl, and Edward F. DeLong
PNAS June 11, 2019 116 (24) 11824-11832
* Co-first authors
biogeochemistry of LipiD Derived chemical Signals in the ocean
My graduate work was partially funded by a collaborative grant awarded to Ben Van Mooy, Kay Bidle, Assaf Vardi, and Matt Johnson to study infochemical signals produced by phytoplankton called oxylipins.
Infochemical Signaling Linked to Diatom Bloom Decline and Viral Infection.
Bethanie Edwards, Kim Thamatrakoln, Jeff Krause, Heather McNair, Andrew Allen, Mark Brzezinski, Matt Johnson, Kay D. Bidle, Ben Van Mooy.
Oxylipins mediate microzooplankton grazing on diatoms.
Johnson M, Edwards BR, Beaudoin D, Van Mooy BAS, Vardi A.
Kranzler CF, Krause JW, Brzezinski MA, Edwards BR, Biggs WP, Maniscalco M, McCrow JP, Van Mooy BAS, Bidle KD, Allen AA, and Thamatrakoln K.
Nature Microbiology. doi: 10.1038/s41564-019-0502-x.
JR Collins, BR Edwards, HF Fredricks, BAS Van Mooy
Analytical chemistry 88 (14), 7154-7162
BR Edwards, KD Bidle, BAS Van Mooy
Proceedings of the National Academy of Sciences 112 (19), 5909-5914
Deepwater Horizon Oil Spill
BR Edwards, CM Reddy, R Camilli, CA Carmichael, K Longnecker, ...
Environmental Research Letters 6 (3), 035301