Hydrogen sulfide oxidation is coupled to oxidative phosphorylation in mitochondria of Solemya reidi
Solemya reidi, a gutless clam found in sulfide-rich habitats, contains within its gills bacterial symbionts thought to oxidize sulfur compounds and provide a reduced carbon food source to the clam. However, the initial step or steps in sulfide oxidation occur in the animal tissue, and mitochondria isolated from both gill and symbiont-free foot tissue of the clam coupled the oxidation of sulfide to oxidative phosphorylation (adenosine triphosphate (ATP) synthesis). The ability of Solemya reidi to exploit directly the energy in sulfide for ATP synthesis is unprecedented, and suggests that sulfide-habitat animals that lack bacterial symbionts may also use sulfide as an inorganic energy source.
- Research Organization:
- Univ. of California, San Diego, La Jolla
- OSTI ID:
- 7246974
- Journal Information:
- Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 233; ISSN SCIEA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
ANIMALS
AQUATIC ORGANISMS
AROMATICS
ATP
BIOCHEMISTRY
BIOSYNTHESIS
CELL CONSTITUENTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CLAMS
CYANIDES
DATA
DINITROPHENOL
EXPERIMENTAL DATA
GILLS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
HYDROXY COMPOUNDS
INFORMATION
INVERTEBRATES
MITOCHONDRIA
MOLLUSCS
NITRO COMPOUNDS
NUCLEOTIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOIDS
OXIDATION
PHENOLS
PHOSPHORYLATION
RESPIRATORY SYSTEM
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS