Dynamic regulation of coral energy metabolism throughout the diel cycle.

Scientific Reports
Lauren Buckley LinsmayerMartin Tresguerres

Abstract

Coral reefs are naturally exposed to daily and seasonal variations in environmental oxygen levels, which can be exacerbated in intensity and duration by anthropogenic activities. However, coral's diel oxygen dynamics and fermentative pathways remain poorly understood. Here, continuous oxygen microelectrode recordings in the coral diffusive boundary layer revealed hyperoxia during daytime and hypoxia at nighttime resulting from net photosynthesis and net respiration, respectively. The activities of the metabolic enzymes citrate synthase (CS), malate dehydrogenase, and strombine dehydrogenase remained constant throughout the day/night cycle, suggesting that energy metabolism was regulated through adjustments in metabolite fluxes and not through changes in enzyme abundance. Liquid chromatography-mass spectrometry analyses identified strombine as coral's main fermentative end product. Strombine levels peaked as oxygen became depleted at dusk, indicating increased fermentation rates at the onset of nightly hypoxia, and again at dawn as photosynthesis restored oxygen and photosynthate supply. When these peaks were excluded from the analyses, average strombine levels during the day were nearly double those at night, indicating sifnifi...Continue Reading

References

Aug 1, 1976·The Biological Bulletin·B M Sweeney
Mar 25, 1983·Science·P W Hochachka, T P Mommsen
Oct 1, 1994·Protein Science : a Publication of the Protein Society·C R Goward, D J Nicholls
May 15, 1996·Experientia·H Schmidt, G Kamp
Jun 27, 2006·Ecology Letters·Jennifer E SmithForest L Rohwer
May 23, 2009·Science·Matthew G Vander HeidenCraig B Thompson
Nov 27, 2009·Physiological and Biochemical Zoology : PBZ·Mary HagedornFrederick W Kleinhans
Dec 4, 2009·PloS One·Katie BarottForest Rohwer
Feb 6, 2010·Proceedings of the National Academy of Sciences of the United States of America·Tali MassDan Tchernov
Jan 15, 2011·Science·O LevyO Hoegh-Guldberg
Sep 29, 2011·PloS One·Aisling K BradyPeter D Vize
Nov 18, 2011·Proceedings. Biological Sciences·Katie L BarottForest L Rohwer
Nov 3, 2012·Biochemical Genetics·Sandra Vázquez-DoradoAndrés Sanjuán
Sep 7, 2014·Proceedings of the National Academy of Sciences of the United States of America·Orr H ShapiroRoman Stocker
Jul 1, 2015·The Biological Bulletin·Lupita J Ruiz-Jones, Stephen R Palumbi
Apr 27, 2016·PeerJ·James W A Murphy, Robert H Richmond
Mar 23, 2017·Proceedings of the National Academy of Sciences of the United States of America·Andrew H AltieriNancy Knowlton

❮ Previous
Next ❯

Citations

Nov 6, 2021·Molecular Ecology·Elena BollatiDanwei Huang

❮ Previous
Next ❯

Methods Mentioned

BETA
electrophoresis
microsensors
dissection
Protein Assay

Software Mentioned

Prism
Delta2D
Unisense SensorTrace Logger
GraphPad

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Giornale italiano di cardiologia : organo ufficiale della Federazione italiana di cardiologia : organo ufficiale della Società italiana di chirurgia cardiaca
Alfredo Marchese, Laura Maria Lonati
Biology Letters
T BiscéréR Rodolfo-Metalpa
© 2021 Meta ULC. All rights reserved