Possible Roles of Hypotaurine and Thiotaurine in the Vesicomyid Clam Phreagena okutanii

2021 ◽  
pp. 000-000
Author(s):  
Megumi Kuroda ◽  
Toshihiro Nagasaki ◽  
Tomoko Koito ◽  
Yuki Hongo ◽  
Takao Yoshida ◽  
...  
Keyword(s):  
Vesicomyid Clam

Reconstructing the history of fluid flow at cold seep sites from Ba/Ca ratios in vesicomyid clam shells

2001 ◽  
Vol 46 (7) ◽  
pp. 1701-1708 ◽  
Author(s):  
M. E. Torres ◽  
J. P. Barry ◽  
D. A. Hubbard ◽  
E. Suess
Keyword(s):  
Fluid Flow ◽  
Cold Seep ◽  
History Of ◽  
Vesicomyid Clam

Aerobic and anaerobic enzymatic activities ofCalyptogena gallardoi(Vesicomyidae): a clam associated with methane cold seeps off Chile

2008 ◽  
Vol 88 (5) ◽  
pp. 983-986 ◽  
Author(s):  
R.R. González ◽  
R.A. Quiñones ◽  
E. Quiroga ◽  
J. Sellanes
Keyword(s):  
Anaerobic Metabolism ◽  
Citrate Synthase ◽  
Enzymatic Activities ◽  
Cold Seeps ◽  
Anaerobic Conditions ◽  
Muscle Tissues ◽  
Central South ◽  
Aerobic And Anaerobic ◽  
Vesicomyid Clam ◽  
Low Activity

Calyptogena gallardoiis a recently described species of vesicomyid clam associated to the extensive gas-hydrate field reported for the Chilean margin along 35°S to 45°S. Enzymatic analysis in foot, gill and abductor muscle tissues ofC. gallardoicollected in central-south Chile (~36°21′S 73°44′W), show high activities for malate dehydrogenase (MDH), strombine dehydrogenase (STRDH) and alanopine dehydrogenase (ALPDH) and a low activity of citrate synthase (CS) and ETS (electron transport system). Positive significant correlations (log–log scale) were found between enzymatic activities involved in anaerobic metabolism (MDH versus LDH and ALPDH versus STRDH), as well as between CS and opines dehydrogenases. The ratio MDH/LDH or any other opine dehydrogenase assayed was >> 1 in all tissues analysed. These results indicate thatC. gallardoiis highly adapted to the harsh anaerobic conditions of marine chemosynthesis-based communities inhabiting a reduced environment.

scholarly journals Comparative genomics of vesicomyid clam (Bivalvia: Mollusca) chemosynthetic symbionts

BMC Genomics ◽  
2008 ◽  
Vol 9 (1) ◽  
pp. 585 ◽  
Author(s):  
Irene LG Newton ◽  
Peter R Girguis ◽  
Colleen M Cavanaugh
Keyword(s):  
Comparative Genomics ◽  
Vesicomyid Clam

Life habit of vesicomyid clam,Calyptogena soyoae, and hydrogen sulfide concentration in interstitial waters in Sagami Bay, Japan

1995 ◽  
Vol 51 (3) ◽  
pp. 341-350 ◽  
Author(s):  
Jun Hashimoto ◽  
Suguru Ohta ◽  
Katsunori Fujikura ◽  
Yoshihiro Fujiwara ◽  
Shunji Sukizaki
Keyword(s):  
Hydrogen Sulfide ◽  
Sulfide Concentration ◽  
Sagami Bay ◽  
Life Habit ◽  
Vesicomyid Clam ◽  
Interstitial Waters ◽  
Hydrogen Sulfide Concentration

scholarly journals The Diversity, Composition, and Putative Functions of Gill-Associated Bacteria of Bathymodiolin Mussel and Vesicomyid Clam from Haima Cold Seep, South China Sea

2020 ◽  
Vol 8 (11) ◽  
pp. 1699
Author(s):  
Juan Ling ◽  
Hongxiang Guan ◽  
Lihua Liu ◽  
Jun Tao ◽  
Jie Li ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Phylogenetic Diversity ◽  
High Throughput Sequencing ◽  
Cold Seep ◽  
Rrna Gene ◽  
Cold Seeps ◽  
Element Cycling ◽  
China Sea ◽  
Vesicomyid Clam

The Haima cold seep, which is one of the two active cold seeps in the South China Sea, is known for its great ecological importance. The seep bivalves are assumed to depend mainly on their bacterial symbiosis for survival and growth. However, information on the bacterial diversity, composition, and putative function of gill-associated of dominant dwelling animals in Haima cold seep remain elusive. Herein, we adopted a high-throughput sequencing of 16S rRNA gene amplicons, and function prediction methods (Functional Annotation of Prokaryotic Taxa (FAPROTAX) and Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICURUSTs)) to purposely illustrate the taxonomic and phylogenetic diversity, composition, and putative functions of the symbionts in bathymodiolin mussel Gigantidas haimaensis (Bivalvia: Mytilidae: Gigantidas) and vesicomyid clam Archivesica marissinica (Bivalvia: Glossoidea: Vesicomyidae). The predominant microbes of both species were Proteobacteria and Gammaproteobacteria on the phylum and class level, respectively. The taxonomic and phylogenetic diversity of gill microbial communities in G. haimaensis were significantly different from those in A. marissinica (p < 0.05). Nine functional groups, including seven carbon-related biogeochemical groups, were identified through the FAPROTAX analysis. However, the most dominant groups for G. haimaensis and A. marissinica were both chemoheterotrophic. G. haimaensis and A. marissinica shared many pathways, however, 16 obtained Kyoto Encyclopedia of Genes and Genomes (KEGG) orthologous groups (42.11%) significantly differed between the two species (p < 0.05). These findings would provide insight into the functions of microbes in the element cycling and energy flow as well as the host-symbiont relationship of bivalves in the Haima cold seep environment.

scholarly journals Sulphur signature in the hydrothermal vent mussel Bathymodiolus azoricus from the Mid-Atlantic Ridge

2002 ◽  
Vol 82 (3) ◽  
pp. 463-468 ◽  
Author(s):  
Audrey Margareth Pruski ◽  
Nathalie Rousse ◽  
Aline Fiala-Médioni ◽  
Jacques Boulègue
Keyword(s):  
Hydrothermal Vent ◽  
Free Amino ◽  
Elemental Sulphur ◽  
Lucky Strike ◽  
Biochemical Characteristics ◽  
Total Sulphur Content ◽  
Mid Atlantic Ridge ◽  
Menez Gwen ◽  
First Time ◽  
Vesicomyid Clam

The sulphur compound composition of the hydrothermal vent mussel Bathymodiolus azoricus (Bivalvia: Mytilidae) was analysed in order to determine the specific biochemical characteristics of a thiotrophic mode of nutrition. In specimens collected from two contrasting vent fields on the Mid-Atlantic Ridge (Menez Gwen and Lucky Strike), substantial differences in the sulphur composition were observed between tissues and sampling sites. Total sulphur content was higher for samples from Lucky Strike than for those from Menez Gwen. The amount of elemental sulphur in the gill of B. azoricus was in the same range as values previously reported for the vesicomyid clam Calyptogena phaseoliformis and the lucinid clam Lucinoma annulata. Rings of orthorhombic sulphur or compounds such as polythionates or organopolysulphides excreted in the cytoplasm by the symbionts may account for the large amounts of elemental sulphur evidenced for the first time in an hydrothermal vent mussel. A large proportion of the tissue-sulphur was incorporated into free amino compounds such as taurine, hypotaurine, thiotaurine and cysteine, and in a lesser extent to the tripeptide glutathione. In mantles, sulphur seems to be contained mainly in organic compounds such as proteins, mucopolysaccharides and lipids. However, the occurrence of specific compounds such as thiotaurine and elemental sulphur in gills indicate that in this tissue a large proportion of the sulphur might be involved in specific pathways related to transport, storage and detoxification of sulphide. Moreover, our results suggest a greater reliance on thiotrophy of mussels from Lucky Strike as compared to specimens from Menez Gwen.

scholarly journals Anaerobic methanotrophic community of a 5346‐m‐deep vesicomyid clam colony in the J apan T rench

Geobiology ◽  
2014 ◽  
Vol 12 (3) ◽  
pp. 183-199 ◽  
Author(s):  
J. Felden ◽  
S. E. Ruff ◽  
T. Ertefai ◽  
F. Inagaki ◽  
K.‐U. Hinrichs ◽  
...  
Keyword(s):  
Vesicomyid Clam

In situ spawning of a deep-sea vesicomyid clam: Evidence for an environmental cue

1998 ◽  
Vol 45 (11) ◽  
pp. 1881-1889 ◽  
Author(s):  
Yoshihiro Fujiwara ◽  
Junzo Tsukahara ◽  
Jun Hashimoto ◽  
Katsunori Fujikura
Keyword(s):  
Deep Sea ◽  
Environmental Cue ◽  
Vesicomyid Clam
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