Adaptive responses of marine diatoms to zinc scarcity and ecological implications

Riss M. Kellogg, Mark A. Moosburner, Natalie R. Cohen, Nicholas J. Hawco, Matthew R. McIlvin, Dawn M. Moran, Giacomo R. DiTullio, Adam V. Subhas, Andrew E. Allen and Mak A. Saito ()
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Riss M. Kellogg: MIT/WHOI Joint Program in Oceanography/Applied Ocean Science and Engineering
Mark A. Moosburner: Microbial & Environmental Genomics, J. Craig Venter Institute
Natalie R. Cohen: Woods Hole Oceanographic Institution
Nicholas J. Hawco: University of Hawaiʻi at Mānoa
Matthew R. McIlvin: Woods Hole Oceanographic Institution
Dawn M. Moran: Woods Hole Oceanographic Institution
Giacomo R. DiTullio: Hollings Marine Laboratory, College of Charleston
Adam V. Subhas: Woods Hole Oceanographic Institution
Andrew E. Allen: Microbial & Environmental Genomics, J. Craig Venter Institute
Mak A. Saito: Woods Hole Oceanographic Institution

Nature Communications, 2022, vol. 13, issue 1, 1-13

Abstract: Abstract 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 (

Date: 2022
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DOI: 10.1038/s41467-022-29603-y

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