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Your search keyword '"Giacomo R. DiTullio"' showing total 3 results
Start Over Author "Giacomo R. DiTullio" Journal nature communications
3 results on '"Giacomo R. DiTullio"'

1. Adaptive responses of marine diatoms to zinc scarcity and ecological implications

Author

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

Subjects
Science
Abstract

Here the authors identify two zinc/cobalt responsive proteins (ZCRPs) in marine diatoms, determining their functional roles in trace metal transport and homeostasis, as well as their application as an indicator of oceanic Zn stress.

Published
2022
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2. Rebound of shelf water salinity in the Ross Sea

Author

Pasquale Castagno, Vincenzo Capozzi, Giacomo R. DiTullio, Pierpaolo Falco, Giannetta Fusco, Stephen R. Rintoul, Giancarlo Spezie, and Giorgio Budillon

Subjects
Science
Abstract

Ross Sea Bottom Water, a major source of Antarctic Bottom Water, has experienced significant freshening in recent decades. Here the authors use 23 years of summer measurements to document temporal variability in the salinity of the Ross Sea High Salinity Shelf Water (HSSW) and found that HSSW salinity decreased between 1995 and 2014 and rebounded sharply after 2014.

Published
2019
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3. Adaptive responses of marine diatoms to zinc scarcity and ecological implications

Author

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

Subjects
Diatoms, Proteomics, Zinc, Multidisciplinary, fungi, Phytoplankton, General Physics and Astronomy, General Chemistry, Acids, General Biochemistry, Genetics and Molecular Biology
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 (

Published
2021

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