Complex Response of the Chlorarachniophyte Bigelowiella natans to Iron Availability

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F21%3A00542515" target="_blank" >RIV/61388971:_____/21:00542515 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/21:10428881

Result on the web

<a href="https://msystems.asm.org/content/6/1/e00738-20.abstract" target="_blank" >https://msystems.asm.org/content/6/1/e00738-20.abstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1128/mSystems.00738-20" target="_blank" >10.1128/mSystems.00738-20</a>

Result language

angličtina

Original language name

Complex Response of the Chlorarachniophyte Bigelowiella natans to Iron Availability

Original language description

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 response to iron availability. Analysis of the Tara Oceans metagenomes and metatranscriptomes also points to a similar role for CREG1, which is found to be widely distributed among marine plankton but to show a strong bias in gene and transcript abundance toward iron-deficient regions. Our analyses allowed us to define a new subfamily of the CobW domain-containing COG0523 putative metal chaperones which are involved in iron metabolism and are restricted to only a few phytoplankton lineages in addition to B. natans. At the physiological level, we elucidated the mechanisms allowing a fast recovery of PSII photo-chemistry after resupply of iron. Collectively, our study demonstrates that B. natans is well adapted to dynamically respond to a changing iron environment and suggests that CREG1 and COG0523 are important components of iron homeostasis in B. natans and other phytoplankton.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10606 - Microbiology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

mSystems

ISSN

2379-5077

e-ISSN

2379-5077

Volume of the periodical

6

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

19

Pages from-to

e00738-20

UT code for WoS article

000647691000020

EID of the result in the Scopus database

2-s2.0-85102237810