Solange Duhamel

Affiliation:

University of Arizona (UA)

Address:

1007 E Lowell Street
Life Sciences South 315
Tucson, AZ
USA 85721

ORCiD:

0000-0002-8435-4695

Activities reported for Solange Duhamel:

Program coordination

None

Project coordination

Photoheterotrophy in unicellular cyanobacteria: ecological drivers and significance for marine biogeochemistry (Photoheterotrophy in unicellular cyanobacteria)	Principal Investigator, Contact
Collaborative Research: Role of small-sized protists in the microbial loop with emphasis on interactions between mixotrophic protists and picocyanobacteria (Small protists in microbial loop)	Lead Principal Investigator, Contact
Role of variable picoplankton cellular phosphorus turnover and allocation in marine phosphorus cycling (Picoplankton cellular P)	Principal Investigator
Collaborative Research: Assessing the role of compound-specific phosphorus hydrolase transformations in the marine phosphorus cycle (P-hydrolase)	Principal Investigator
Development of low Nitrogen:Phosphorus ratios in the euphotic zone - the Phosphorus side of the story (GOMP)	Co-Principal Investigator
Collaborative Research: Assessing the role of polyphosphate production and cycling in marine ecosystem functioning (Polyphosphate production and cycling)	Principal Investigator

Deployment coordination

None

Datasets

Project: Development of low Nitrogen:Phosphorus ratios in the euphotic zone - the Phosphorus side of the story

Dataset	Version Date	Current State
Hydrographic data from CTD profiles conducted on two R/V Endeavor cruises, EN620 and EN642, in the Northern Gulf of Mexico in 2018 and 2019 Co-Principal Investigator	2022-04-14	Data not available
Hydrographic data from Niskin bottles collected by CTD profiling on two R/V Endeavor cruises, EN620 and EN642, in the Northern Gulf of Mexico in 2018 and 2019 Co-Principal Investigator	2022-03-28	Data not available

Project: Collaborative Research: Assessing the role of compound-specific phosphorus hydrolase transformations in the marine phosphorus cycle

Dataset	Version Date	Current State
Synechococcus DOP Hydrolysis Experiment - cell counts and IVF Principal Investigator	2024-06-06	Data not available
Synechococcus DOP Displacement Experiment Principal Investigator	2024-06-06	Data not available
Laboratory-cultured Synechococcus (WH8102 and WH5701) growth on dissolved organic phosphorus (DOP) from experiments between 2018-2023 Principal Investigator	2024-06-03	Data not available
Dissolved organic phosphorus (DOP) hydrolysis rates from marine cyanobacterium Synechococcus (WH8102 and WH5701) laboratory cultures from experiments between 2018-2023 Principal Investigator	2024-05-28	Data not available
Optical density and cell counts from flow cytometry of Ruegeria pomeroyi laboratory cultures Co-Principal Investigator	2023-06-09	Final no updates expected
Dissolved organic phosphorus (DOP) hydrolysis rates from Ruegeria pomeroyi laboratory cultures Co-Principal Investigator	2023-06-09	Final no updates expected
Phytoplankton and heterotrophic bacterial cell abundance in seawater collected during R/V Savannah cruise SAV-19-02 in the NW Atlantic Ocean in the Spring of 2019 Principal Investigator	2021-11-02	Data not available
Concentrations of particulate phosphate in seawater collected during R/V Savannah cruise SAV-19-02 in the NW Atlantic Ocean in the Spring of 2019 Principal Investigator	2021-11-02	Data not available
Bioavailability factor of polyphosphate, nucleotides (ATP and AMP) and phosphonate in seawater collected during R/V Savannah cruise SAV-19-02 in the NW Atlantic Ocean in the Spring of 2019 Principal Investigator	2021-11-02	Data not available
Alkaline phosphatase activity (APA) Michaelis-Menten kinetic parameters (Vmax and Km) in both whole and filtered seawater collected during R/V Savannah cruise SAV-19-02 in the NW Atlantic Ocean in the Spring of 2019 Principal Investigator	2021-11-02	Data not available
Alkaline phosphatase activity over bioassay experiments with seawater from R/V Savannah cruise SAV-19-02 in the NW Atlantic Ocean in Spring of 2019 Principal Investigator	2021-11-02	Data not available
Turnover time and uptake rates of phosphate in treatments amended with dissolved inorganic and organic phosphate compounds in bioassay experiments (incubation 48h) with seawater from R/V Savannah cruise SAV-19-02 in the NW Atlantic Ocean in Spring 2019 Principal Investigator	2021-11-02	Data not available
Concentrations of soluble reactive phosphate in treatments amended with dissolved organic phosphate compounds in bioassay experiments (incubation 48h) with seawater from R/V Savannah cruise SAV-19-02 in the NW Atlantic Ocean in Spring of 2019 Principal Investigator	2021-11-02	Data not available
Concentrations of particulate phosphate in treatments amended with dissolved organic phosphate compounds in bioassay experiments (incubation 48h) with seawater from R/V Savannah cruise SAV-19-02 in the NW Atlantic Ocean in Spring of 2019 Principal Investigator	2021-11-02	Data not available
Phytoplankton and heterotrophic bacterial cell abundance over the incubation period in bioassay experiments with seawater from R/V Savannah cruise SAV-19-02 in the NW Atlantic Ocean in Spring of 2019 Principal Investigator	2021-11-02	Data not available
Bioavailability factor of polyphosphate, nucleotides, and methyl phosphonate in bioassay experiments with seawater from R/V Savannah cruise SAV-19-02 in the NW Atlantic Ocean in Spring of 2019 Principal Investigator	2021-11-02	Data not available

Project: Collaborative Research: Role of small-sized protists in the microbial loop with emphasis on interactions between mixotrophic protists and picocyanobacteria

Dataset	Version Date	Current State
Bulk and cell-specific CO2 fixation and PO4 uptake from Atlantic Explorer cruise AE1524 (BATS validation cruise BV50), September 2015 Principal Investigator	2019-06-24	Final no updates expected
Plankton cell abundances and APA data from RV Atlantic Explorer BATS cruise BV50 in the North Atlantic subtropical gyre during September 2015. Principal Investigator, Contact	2018-06-27	Final no updates expected

Project: Photoheterotrophy in unicellular cyanobacteria: ecological drivers and significance for marine biogeochemistry

Dataset	Version Date	Current State
Flow cytometry cell counts obtained during the R/V L'Atalante OUTPACE cruise between New Caledonia and Tahiti from February to April 2015 Principal Investigator, Contact	2016-11-03	Final no updates expected

Status message

Database

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Solange Duhamel

Activities reported for Solange Duhamel: