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Iron limitation and the role of Siderophores in marine Synechococcus
(Massachusetts Institute of Technology, 2009)
Marine cyanobacteria in the genus Synechococcus are widely distributed and contribute significantly to global primary productivity. In many parts of the ocean their growth is limited by a lack of iron, an essential nutrient ...
Faunal biogeography, community structure, and genetic connectivity of North Atlantic seamounts
(Massachusetts Institute of Technology, 2008)
The mechanisms of faunal dispersal across ocean basins are key unknowns toward understanding of the modern biogeography and biodiversity of deep-sea fauna. Seamounts are considered to play a defining role in faunal evolution, ...
Evolutionary conservation and characterization of the metazoan amino acid response
(Massachusetts Institute of Technology, 2018)
Signaling pathways that respond to stress and sense nutrient availability are highly conserved throughout eukaryotes. In mammalian cells, these pathways have evolved to regulate immune responses, representing important ...
Spationtemporal population genomics of marine species : invasion, expansion, and connectivity
(Massachusetts Institute of Technology, 2017)
Every genome tells a story. This dissertation contains four such stories, focused on shared themes of marine population dynamics and rapid change, with an emphasis on invasive marine species. Biological invasions are often ...
Functional genomics of a non-toxic Alexandrium lusitanicum culture
(Massachusetts Institute of Technology, 2007)
Paralytic shellfish poisoning (PSP) is a human intoxication associated with the consumption of shellfish contaminated with a family of neurotoxins called saxitoxins. Many species in the dinoflagellate genus Alexandrium ...
Characterization of resistance to halogenated aromatic hydrocarbons in a population of Fundulus heteroclitus from a marine superfund site
(Massachusetts Institute of Technology, 1999)
Alexandrium catenella cyst dynamics in a coastal embayment : temperature dependence of dormancy, germination, and bloom initiation
(Massachusetts Institute of Technology, 2017)
Blooms of the dinoflagellate Alexandrium catenella cause paralytic shellfish poisoning syndrome and present an expanding public health threat. They are inoculated through the germination of benthic cysts, a process regulated ...
Molecular insights into the niche of harmful brown tides
(Massachusetts Institute of Technology, 2011)
Recurrent brown tide blooms caused by the harmful alga Alureococcus anophagefferens have decimated coastal ecosystems and shellfisheries along the Eastern U.S and South Africa. The exact mechanisms controlling bloom ...
Comparative analyses of aryl hydrocarbon receptor structure, function, and evolution in marine mammals
(Massachusetts Institute of Technology, 2007)
Marine mammals possess high body burdens of persistent organic pollutants, including PCBs and dioxin-like compounds (DLC). Chronic environmental or dietary exposure to these chemicals can disrupt the function of reproductive ...
Defining the ecological and physiological traits of phytoplankton across marine ecosystem
(Massachusetts Institute of Technology, 2016)
Marine phytoplankton are central players in the global carbon cycle, responsible for nearly half of global primary production. The identification of the factors controlling phytoplankton ecology, physiology, and, ultimately, ...