Alyssa G. KentCornell University | CU · Department of Biomedical Engineering
Alyssa G. Kent
Doctor of Philosophy in Biology
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Citations since 2017
7 Research Items
I am currently a postdoctoral associate with Dr. Ilana Brito at Cornell University. My background emphasizes an interdisciplinary approach to addressing biological problems from modeling to bioinformatics. I am generally interested in the ecology and evolution of mobile elements in the human microbiome, especially their role in the spread of antibiotic resistance. I received my PhD with Dr. Adam Martiny investigating biogeography and the adaptive variation of marine bacteria in response to environmental change. At UC-Irvine I investigated the genome content of Prochlorococcus, the diversity of Prochlorococcus and Synechococcus across latitudinal gradients, and adaptation of a marine Roseobacter to high temperature.
August 2017 - present
- PostDoc Position
- I am currently investigating the dynamics of the mobile gene pool within the human gut microbiome.
September 2012 - December 2016
September 2011 - June 2012
The globally abundant marine Cyanobacteria Prochlorococcus and Synechococcus share many physiological traits but presumably have different evolutionary histories and associated phylogeography. In Prochlorococcus, there is a clear phylogenetic hierarchy of ecotypes, whereas multiple Synechococcus clades have overlapping physiologies and environmenta...
Ocean temperatures will increase significantly over the next 100 years due to global climate change1. As temperatures increase beyond current ranges, it is unclear how adaptation will impact the distribution and ecological role of marine microorganisms2. To address this major unknown, we imposed a stressful high-temperature regime for 500 generatio...
Microorganisms exhibit shifts in elemental stoichiometry in response to short-term temperature increases due to varying growth rate, biochemical reactions, and protein degradation. Yet, it is unknown how an organism's elemental stoichiometry will respond to temperature change on evolutionary timescales. Here we ask how cellular elemental stoichiome...
Prochlorococcus, the smallest known photosynthetic bacterium, is abundant in the ocean's surface layer despite large variation in environmental conditions. There are several genetically divergent lineages within Prochlorococcus and superimposed on this phylogenetic diversity is extensive gene gain and loss. The environmental role in shaping the glo...
Prochlorococcus is the numerically dominant phototroph in the oligotrophic subtropical ocean and carries out a significant fraction of marine primary productivity. Although field studies have provided evidence for nitrate uptake by Prochlorococcus, little is known about this trait because axenic cultures capable of growth on nitrate have not been a...
Bacteria produce extracellular enzymes to obtain resources from complex chemical substrates, but this strategy is vulnerable to cheating by cells that take up reaction products without paying the cost of enzyme production. We hypothesized that cheating would suppress enzyme production in co-cultures of cheater and producer bacteria, particularly un...