Kellogg Riss

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Last Name
Kellogg
First Name
Riss
ORCID
0000-0003-4485-9610

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  • Dataset
    Metal quotas (ratios of Metal:P) of the polar diatom Chaetoceros sp. RS19 in +Zn and +Co incubation studies from January 2020 (MM Saito project)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-09-20) Kellogg, Riss ; Saito, Mak A.
    Metal quotas (ratios of Metal:P) of the Ross Sea diatom isolate Chaetoceros RS19 measured via ICP-MS after growth in +Zn+Co media amendments. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/859211
  • Dataset
    Metal uptake rates of the polar diatom Chaetoceros RS19 in +Zn and +Co incubation studies from January 2020 (MM Saito project)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-09-22) Kellogg, Riss ; Saito, Mak A.
    Metal uptake rates of the Ross Sea diatom isolate Chaetoceros RS19 measured after growth in +Zn +Co media amendments. Uptake rates are calculated as the specific growth rate (units of d-1) multiplied by the P-normalized metal quota. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/859581
  • Dataset
    Growth rates of the polar diatom Chaetoceros RS19 under various +Zn and +Co conditions from September 2019 (MM Saito project)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-09-20) Kellogg, Riss ; Saito, Mak A.
    Growth rates of the Ross Sea diatom isolate Chaetoceros sp. RS19 under various Zinc and Cobalt conditions. Chaetoceros RS19 was originally isolated by D. Moran from the Ross Sea, Antarctica in 2019. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/858743
  • Dataset
    Total Zn and Cd uptake rates of natural phytoplankton assemblages measured during the 2017-2018 CICLOPS expedition
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-10-05) Kellogg, Riss ; Saito, Mak A.
    67Zn and 110Cd tracer uptake experiments were conducted along the Amundsen Sea and Ross Sea shelves during the 2017-2018 CICLOPS expedition in order to quantify the movement of dissolved Zn and Cd into the phytoplankton particulate fraction (>3μm). Variations in these uptake rates with depth and time were examined to draw conclusions regarding the relative demand of these trace metals within the native phytoplankton bloom. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/877681
  • Dataset
    Total dissolved metal concentrations measured during the 2017-2018 CICLOPS expedition
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-10-05) Kellogg, Riss ; Saito, Mak A.
    The Ross Sea and Amundsen Sea of Antarctica were sampled during the 2017-2018 CICLOPS (Cobalamin and Iron Co-Limitation of Phytoplankton Species) expedition for total dissolved concentrations of the trace metals Fe, Mn, Ni, Cu, Zn, and Cd. Water samples for dissolved trace metal analyses were collected at a total of 26 stations using a trace metal clean rosette suspended on a Kevlar line and equipped with twelve 8L X-Niskin bottles (Ocean Test Equipment) at depths ranging from 4.5 – 1209 m. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/877466
  • Article
    Adaptive responses of marine diatoms to zinc scarcity and ecological implications
    (Nature Research, 2022-04-14) Kellogg, Riss ; Moosburner, Mark A. ; Cohen, Natalie R. ; Hawco, Nicholas J. ; McIlvin, Matthew R. ; Moran, Dawn M. ; DiTullio, Giacomo R. ; Subhas, Adam V. ; Saito, Mak A.
    Scarce dissolved surface ocean concentrations of the essential algal micronutrient zinc suggest that Zn may influence the growth of phytoplankton such as diatoms, which are major contributors to marine primary productivity. However, the specific mechanisms by which diatoms acclimate to Zn deficiency are poorly understood. Using global proteomic analysis, we identified two proteins (ZCRP-A/B, Zn/Co Responsive Protein A/B) among four diatom species that became abundant under Zn/Co limitation. Characterization using reverse genetic techniques and homology data suggests putative Zn/Co chaperone and membrane-bound transport complex component roles for ZCRP-A (a COG0523 domain protein) and ZCRP-B, respectively. Metaproteomic detection of ZCRPs along a Pacific Ocean transect revealed increased abundances at the surface (<200 m) where dZn and dCo were scarcest, implying Zn nutritional stress in marine algae is more prevalent than previously recognized. These results demonstrate multiple adaptive responses to Zn scarcity in marine diatoms that are deployed in low Zn regions of the Pacific Ocean.
  • Thesis
    Assessing the potential for Zn limitation of marine primary production: proteomic characterization of the low Zn stress response in marine diatoms
    (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2022-05) Kellogg, Riss ; Saito, Mak A.
    Marine diatoms are abundant photoautotrophic algae that contribute significantly to photosynthetic carbon fixation and export throughout the oceans. Zinc is an important micronutrient in algal metabolism, with scarce dissolved concentrations in the upper euphotic zone reflecting high biological demand. In this thesis, I investigated the response of marine diatoms to Zn scarcity to characterize metabolic mechanisms used to combat Zn stress. I began by assaying the ability to metabolically substitute cobalt (Co) in place of Zn in four diatom species and found that enhanced abilities to use Co are likely an adaptation to high surface dCo:dZn ratios in the native environment. I next demonstrated that Zn/Co metabolic substitution in diatoms is not universal using culture studies of Chaetoceros neogracile RS19, which has an absolute Zn requirement. Using global proteomic analysis, I then identified and characterized diatom ZCRP-A and ZCRP-B, a putative Zn-chaperone and membrane-tethered Zn acquisition protein, respectively, as two proteins involved in the low-Zn response. I demonstrated that these proteins are widespread in marine phytoplankton and can be deployed as protein biomarkers of Zn stress in the field. I furthermore documented both the detection of ZCRPs in the Southern Ocean and the existence of Zn/Fe co-limitation within the natural phytoplankton population in Terra Nova Bay, demonstrating that Zn co-limitation can indeed occur in the field, even in high macronutrient waters. Lastly, I explored the relative demand of Zn and cadmium (Cd) within the Southern Ocean community using stable 67Zn and 110Cd tracers, documenting a high demand for both metals during the austral 2017-2018 summer season and investigating the cycling of these elements within this important region. Overall, this dissertation provides new information regarding Zn acquisition and homeostasis mechanisms within marine algae and demonstrates that Zn co-limitation in the field is not only possible, but detectable via protein biomarkers.