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Regulating cellular trace metal economy in algae

Journal Article · · Current Opinion in Plant Biology
 [1];  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Biology Dept.
  2. Univ. of California, Los Angeles, CA (United States). Dept. of Chemistry and Biochemistry, Inst. for Genomics and Proteomics
As indispensable protein cofactors, Fe, Mn, Cu and Zn are at the center of multifaceted acclimation mechanisms that have evolved to ensure extracellular supply meets intracellular demand. In starting with selective transport at the plasma membrane and ending in protein metalation, metal homeostasis in algae involves regulated trafficking of metal ions across membranes, intracellular compartmentalization by proteins and organelles, and metal-sparing/recycling mechanisms to optimize metal-use efficiency. Overlaid on these processes are additional circuits that respond to the metabolic state as well as to the prior metal status of the cell. Here, we focus on recent progress made toward understanding the pathways by which the single-celled, green alga Chlamydomonas reinhardtii controls its cellular trace metal economy. We also compare these mechanisms to characterized and putative processes in other algal lineages. Photosynthetic microbes continue to provide insight into cellular regulation and handling of Cu, Fe, Zn and Mn as a function of the nutritional supply and cellular demand for metal cofactors. We found that new experimental tools such as RNA-Seq and subcellular metal imaging are bringing us closer to a molecular understanding of acclimation to supply dynamics in algae and beyond.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Grant/Contract Number:
SC0012704
OSTI ID:
1372451
Alternate ID(s):
OSTI ID: 1496417
Report Number(s):
BNL--114050-2017-JA
Journal Information:
Current Opinion in Plant Biology, Journal Name: Current Opinion in Plant Biology Journal Issue: C Vol. 39; ISSN 1369-5266
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (6)

Nitric Oxide Remodels the Photosynthetic Apparatus upon S-Starvation in Chlamydomonas reinhardtii journal December 2018
Comparative transcriptome analyses of oleaginous Botryococcus braunii race A reveal significant differences in gene expression upon cobalt enrichment journal December 2018
Copper and iron metabolism in Ostreococcus tauri – the role of phytotransferrin, plastocyanin and a chloroplast copper-transporting ATPase journal January 2019
The enhanced biomass and lipid accumulation in algae with an integrated treatment strategy by waste molasses and Mg 2+ addition journal April 2019
Keep talking: crosstalk between iron and sulfur networks fine-tunes growth and development to promote survival under iron limitation journal June 2019
Multi-genomic analysis of the Cation Diffusion Facilitator transporters from algae posted_content March 2020

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