Suspension feeding on phytoplankton by Solemya velum, a symbiont-containing clam
نویسندگان
چکیده
منابع مشابه
clam-chemoautotroph symbiosis Solemya velum
Many nutritive symbioses between chemoautotrophic bacteria and invertebrates, such as Solemya velum , have d 13 C values of ~30 to 35‰, considerably more depleted than phytoplankton. Most of the chemoautotrophic symbionts fix carbon with a form IA ribulose 1,5-bisphosphate carboxylase (RubisCO). We hypothesized that this form of RubisCO discriminates against 13 CO 2 to a greater extent than oth...
متن کاملImmunochemical localization of ribulose-1,5-bisphosphate carboxylase in the symbiont-containing gills of Solemya velum (Bivalvia: Mollusca).
The distribution of the Calvin cycle enzyme ribulose-1,5-bisphosphate carboxylase (RbuP(2)Case; EC 4.1.1.39) was examined by using two immunological methods in tissues of Solemya velum, an Atlantic coast bivalve containing putative chemoautotrophic symbionts. Antibodies elicited by the purified large subunit of RbuP(2)Case from tobacco (Nicotiana tabacum) cross-reacted on immunoblots with a pro...
متن کاملCO2 uptake and fixation by endosymbiotic chemoautotrophs from the bivalve Solemya velum.
Chemoautotrophic symbioses, in which endosymbiotic bacteria are the major source of organic carbon for the host, are found in marine habitats where sulfide and oxygen coexist. The purpose of this study was to determine the influence of pH, alternate sulfur sources, and electron acceptors on carbon fixation and to investigate which form(s) of inorganic carbon is taken up and fixed by the gamma-p...
متن کاملGenetic subdivision of chemosynthetic endosymbionts of Solemya velum along the Southern New England coast.
Population-level genetic diversity in the obligate symbiosis between the bivalve Solemya velum and its thioautotrophic bacterial endosymbiont was examined. Distinct populations along the New England coast shared a single mitochondrial genotype but were fixed for unique symbiont genotypes, indicating high levels of symbiont genetic structuring and potential symbiont-host decoupling.
متن کاملLateral symbiont acquisition in a maternally transmitted chemosynthetic clam endosymbiosis.
Deep-sea clams of the family Vesicomyidae live in symbiosis with intracellular chemosynthetic bacteria. These symbionts are transmitted maternally (vertically) between host generations and should therefore show a pattern of genetic variation paralleling that of the cotransmitted host mitochondrion. However, instances of lateral (nonvertical) symbiont acquisition could still occur, thereby decou...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 1992
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps086145