Respiration strategies utilized by the gill endosymbiont from the host lucinid Codakia orbicularis (Bivalvia: Lucinidae)

Applied and Environmental Microbiology
Melinda R DuplessisH Felbeck

Abstract

The large tropical lucinid clam Codakia orbicularis has a symbiotic relationship with intracellular, sulfide-oxidizing chemoautotrophic bacteria. The respiration strategies utilized by the symbiont were explored using integrative techniques on mechanically purified symbionts and intact clam-symbiont associations along with habitat analysis. Previous work on a related symbiont species found in the host lucinid Lucinoma aequizonata showed that the symbionts obligately used nitrate as an electron acceptor, even under oxygenated conditions. In contrast, the symbionts of C. orbicularis use oxygen as the primary electron acceptor while evidence for nitrate respiration was lacking. Direct measurements obtained by using microelectrodes in purified symbiont suspensions showed that the symbionts consumed oxygen; this intracellular respiration was confirmed by using the redox dye CTC (5-cyano-2,3-ditolyl tetrazolium chloride). In the few intact chemosymbioses tested in previous studies, hydrogen sulfide production was shown to occur when the animal-symbiont association was exposed to anoxia and elemental sulfur stored in the thioautotrophic symbionts was proposed to serve as an electron sink in the absence of oxygen and nitrate. However, ...Continue Reading

References

Jun 1, 1992·Applied and Environmental Microbiology·G G RodriguezH F Ridgway
Aug 1, 1990·The Journal of Hand Surgery : Journal of the British Society for Surgery of the Hand·J N KuhlmannS Baux
Dec 1, 1987·Journal of Bacteriology·T M SchmidtW R Strohl
Jul 1, 1981·Journal of Bacteriology·D C Nelson, R W Castenholz
Sep 2, 2000·Journal of Experimental Marine Biology and Ecology·B W Touchette, J M Burkholder
Jun 1, 1992·The Biological Bulletin·D B Wilmot, R D Vetter

❮ Previous
Next ❯

Citations

Apr 7, 2009·Applied and Environmental Microbiology·Audrey CaroOlivier Gros
Jun 10, 2011·Biotechnology and Bioengineering·Wei ZhangAaron I Packman
Aug 2, 2005·Trends in Microbiology·Frank J StewartColleen M Cavanaugh
Jan 10, 2009·Marine Environmental Research·Mélina C Z LaurentNadine Le Bris
Jan 30, 2016·PloS One·Ingrid M Montes-RodríguezCarmen L Cadilla
Jun 16, 2017·Microbiology and Molecular Biology Reviews : MMBR·William F MartinSven B Gould
Apr 24, 2007·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·Tal Dagan, William Martin
Apr 24, 2021·Genome Biology and Evolution·Michael KnoppSven B Gould
Jul 18, 2021·Proceedings of the National Academy of Sciences of the United States of America·Jay T OsvaticBenedict Yuen

❮ Previous
Next ❯

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.