Complex Response of the Chlorarachniophyte Bigelowiella natans to Iron Availability.

ABSTRACT: The productivity of the ocean is largely dependent on iron availability, and marine phytoplankton have evolved sophisticated mechanisms to cope with chronically low iron levels in vast regions of the open ocean. By analyzing the metabarcoding data generated from the Tara Oceans expedition, we determined how the global distribution of the model marine chlorarachniophyte Bigelowiella natans varies across regions with different iron concentrations. We performed a comprehensive proteomics analysis of the molecular mechanisms underpinning the adaptation of B. natans to iron scarcity and report on the temporal response of cells to iron enrichment. Our results highlight the role of phytotransferrin in iron homeostasis and indicate the involvement of CREG1 protein in the respo

SUBMITTER: Kotabova E 

PROVIDER: S-EPMC7883536 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature