Search Results - "Barbeau, Katherine A"

Iron transporters in marine prokaryotic genomes and metagenomes by Hopkinson, Brian M., Barbeau, Katherine A.

“…Summary In the pelagic environment, iron is a scarce but essential micronutrient. The iron acquisition capabilities of selected marine bacteria have been…”
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Pervasive iron limitation at subsurface chlorophyll maxima of the California Current by Hogle, Shane L., Dupont, Christopher L., Hopkinson, Brian M., King, Andrew L., Buck, Kristen N., Roe, Kelly L., Stuart, Rhona K., Allen, Andrew E., Mann, Elizabeth L., Johnson, Zackary I., Barbeau, Katherine A.

“…Subsurface chlorophyll maximum layers (SCMLs) are nearly ubiquitous in stratified water columns and exist at horizontal scales ranging from the submesoscale to…”
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Iron-binding ligands and humic substances in the San Francisco Bay estuary and estuarine-influenced shelf regions of coastal California by Bundy, Randelle M., Abdulla, Hussain A.N., Hatcher, Patrick G., Biller, Dondra V., Buck, Kristen N., Barbeau, Katherine A.

“…Dissolved iron (dFe) and organic dFe-binding ligands were determined in San Francisco Bay, California by competitive ligand exchange adsorptive cathodic…”
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Seasonal dispersal of fjord meltwaters as an important source of iron and manganese to coastal Antarctic phytoplankton by Forsch, Kiefer O, Hahn-Woernle, Lisa, Sherrell, Robert M, Roccanova, Vincent J, Bu, Kaixuan, Burdige, David, Vernet, Maria, Barbeau, Katherine A

“…Glacial meltwater from the western Antarctic Ice Sheet is hypothesized to be an important source of cryospheric iron, fertilizing the Southern Ocean, yet its…”
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Acquisition of organically complexed copper by marine phytoplankton and bacteria in the northeast subarctic Pacific Ocean by Semeniuk, David M., Bundy, Randelle M., Payne, Chris D., Barbeau, Katherine A., Maldonado, Maria T.

“…Copper (Cu) is an essential micronutrient for marine phytoplankton, but can cause toxicity at elevated intracellular concentrations. The majority of Cu…”
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Short-term acidification promotes diverse iron acquisition and conservation mechanisms in upwelling-associated phytoplankton by Lampe, Robert H., Coale, Tyler H., Forsch, Kiefer O., Jabre, Loay J., Kekuewa, Samuel, Bertrand, Erin M., Horák, Aleš, Oborník, Miroslav, Rabines, Ariel J., Rowland, Elden, Zheng, Hong, Andersson, Andreas J., Barbeau, Katherine A., Allen, Andrew E.

“…Coastal upwelling regions are among the most productive marine ecosystems but may be threatened by amplified ocean acidification. Increased acidification is…”
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Dissolved iron and macronutrient distributions in the southern California Current System by King, Andrew L., Barbeau, Katherine A.

“…The distribution of dissolved iron in the southern California Current System (sCCS) is presented from seven research cruises between 2002 and 2006. Dissolved…”
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Distinct pools of dissolved iron-binding ligands in the surface and benthic boundary layer of the California Current by Bundy, Randelle M., Biller, Dondra V., Buck, Kristen N., Bruland, Kenneth W., Barbeau, Katherine A.

“…Organic dissolved iron (dFe)–binding ligands were measured by competitive ligand exchange–adsorptive cathodic stripping voltammetry (CLE-ACSV) at multiple…”
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Uptake mechanisms for inorganic iron and ferric citrate in Trichodesmium erythraeum IMS101 by Roe, Kelly L, Barbeau, Katherine A

“…Growth of the prevalent marine organism Trichodesmium can be limited by iron in natural and laboratory settings. This study investigated the iron uptake…”
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The organic complexation of iron and copper: an intercomparison of competitive ligand exchange-adsorptive cathodic stripping voltammetry (CLE-ACSV) techniques by Buck, Kristen N., Moffett, James, Barbeau, Katherine A., Bundy, Randelle M., Kondo, Yoshiko, Wu, Jingfeng

“…Characterization of the speciation of iron and copper is an important objective of the GEOTRACES Science Plan. To incorporate speciation measurements into such…”
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Utilization of Heme as an Iron Source by Marine Alphaproteobacteria in the Roseobacter Clade by ROE, Kelly L, HOGLE, Shane L, BARBEAU, Katherine A

“…Classifications Services AEM Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley Reddit…”
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The composition of dissolved iron in the dusty surface ocean: An exploration using size-fractionated iron-binding ligands by Fitzsimmons, Jessica N., Bundy, Randelle M., Al-Subiai, Sherain N., Barbeau, Katherine A., Boyle, Edward A.

“…The size partitioning of dissolved iron and organic iron-binding ligands into soluble and colloidal phases was investigated in the upper 150m of two stations…”
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Heme in the marine environment: from cells to the iron cycle by Hogle, Shane L, Barbeau, Katherine A, Gledhill, Martha

“…Hemes are iron containing heterocyclic molecules important in many cellular processes. In the marine environment, hemes participate as enzymatic cofactors in…”
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Iron-binding ligand production and copper speciation in an incubation experiment of Antarctic Peninsula shelf waters from the Bransfield Strait, Southern Ocean by Buck, Kristen N., Selph, Karen E., Barbeau, Katherine A.

“…The evolution of dissolved iron (Fe) and copper (Cu) speciation was followed through a simulated spring bloom event in a 15-day incubation experiment of…”
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Iron-copper interactions in iron-limited phytoplankton in the northeast subarctic Pacific Ocean by Semeniuk, David M., Taylor, Rebecca L., Bundy, Randelle M., Johnson, W. Keith, Cullen, Jay T., Robert, Marie, Barbeau, Katherine A., Maldonado, Maria T.

“…In August 2010, iron (Fe) and Fe and copper (Cu) addition incubation experiments were conducted at two low Fe stations (P20 and P26) along Line P, off the…”
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Transcriptomic Study of Substrate-Specific Transport Mechanisms for Iron and Carbon in the Marine Copiotroph Alteromonas macleodii by Manck, Lauren E, Espinoza, Josh L, Dupont, Christopher L, Barbeau, Katherine A

“…Iron is an essential micronutrient for all microbial growth in the marine environment, and in heterotrophic bacteria, iron is tightly linked to carbon…”
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Interactive Influences of Iron and Light Limitation on Phytoplankton at Subsurface Chlorophyll Maxima in the Eastern North Pacific by Hopkinson, Brian M., Barbeau, Katherine A.

“…The roles of iron and light as limiting and colimiting factors for phytoplankton growth in subsurface chlorophyll maxima (SCMs) were investigated in…”
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Iron-Binding Ligands in the Southern California Current System: Mechanistic Studies by Bundy, Randelle M, Jiang, Mingshun, Carter, Melissa, Barbeau, Katherine A

“…The distributions of dissolved iron and organic iron-binding ligands were examined in water column profiles and deckboard incubation experiments in the…”
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Structural Characterization of Natural Nickel and Copper Binding Ligands along the US GEOTRACES Eastern Pacific Zonal Transect by Boiteau, Rene M., Till, Claire P., Ruacho, Angel, Bundy, Randelle M., Hawco, Nicholas J., McKenna, Amy M., Barbeau, Katherine A., Bruland, Kenneth W., Saito, Mak A., Repeta, Daniel J.

“…Organic ligands form strong complexes with many trace elements in seawater. Various metals can compete for the same ligand chelation sites, and the final…”
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Iron Limitation across Chlorophyll Gradients in the Southern Drake Passage: Phytoplankton Responses to Iron Addition and Photosynthetic Indicators of Iron Stress by Brian M. Hopkinson, Mitchell, B. Greg, Reynolds, Rick A., Haili Wang, Selph, Karen E., Christopher I. Measures, Hewes, Christopher D., Holm-Hansen, Osmund, Barbeau, Katherine A.

“…Processes influencing phytoplankton bloom development in the southern Drake Passage were studied using shipboard iron-enrichment incubations conducted across a…”
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