The enzymes involved in synthesis and utilization of carbamylphosphate in the deep-sea tube worm Riftia pachyptila

@article{Simon2000TheEI,
  title={The enzymes involved in synthesis and utilization of carbamylphosphate in the deep-sea tube worm Riftia pachyptila},
  author={Valérie Simon and Cristina Purcarea and K. Sun and Juliet Joseph and Ghislaine Fr{\'e}bourg and Jean Pierre Lechaire and Francoise Gaill and Guy Hervé},
  journal={Marine Biology},
  year={2000},
  volume={136},
  pages={115-127}
}
Abstract The obligate symbiosis of the deep-sea tube worm Riftia pachyptila with a sulphur-oxidizing bacterium raises important questions concerning its metabolism and metabolic exchanges. In this study, the presence and properties of the enzymes synthesizing and utilizing carbamylphosphate in the arginine and pyrimidine nucleotide pathways were investigated in this worm. The results show that the ammonium-dependent carbamylphosphate synthetase and ornithine transcarbamylase, enzymes involved… Expand
6 Citations
Contribution of the Bacterial Endosymbiont to the Biosynthesis of Pyrimidine Nucleotides in the Deep-sea Tube Worm Riftia pachyptila *
TLDR
The deep-sea tube worm Riftia pachyptila (Vestimentifera) from hydrothermal vents lives in an intimate symbiosis with a sulfur-oxidizing bacterium, and the contribution of the two partners to the biosynthesis of pyrimidine nucleotides through both the “de novo” and “salvage” pathways is analyzed. Expand
Arginine Metabolism in the Deep Sea Tube Worm Riftia pachyptila and Its Bacterial Endosymbiont*
TLDR
The distribution and properties of enzymes involved in arginine metabolism in Riftia pachyptila, a tubeworm living around deep sea hydrothermal vents and known to be engaged in a highly specific symbiotic association with a bacterium, indicate that Riftia is dependent on its bacterial endosymbiont for the biosynthesis of polyamines that are important for its metabolism and physiology. Expand
Catabolism of Pyrimidine Nucleotides in the Deep-sea Tube WormRiftia pachyptila *
TLDR
The distribution and properties of enzymes of the catabolic pathway of pyrimidine nucleotides in Riftia pachyptila, a tubeworm living around deep-sea hydrothermal vents and known to be involved in a highly specialized symbiotic association with a bacterium, suggest that the production of nucleosides in the trophosome may represent an alternative source of carbon and nitrogen for R. pachyPTila. Expand
Biochemical and enzymological aspects of the symbiosis between the deep-sea tubeworm Riftia pachyptila and its bacterial endosymbiont.
Riftia pachyptila (Vestimentifera) is a giant tubeworm living around the volcanic deep-sea vents of the East Pacific Rise. This animal is devoid of a digestive tract and lives in an intimateExpand
Bacterial Endosymbioses of Gutless Tube-Dwelling Worms in Nonhydrothermal Vent Habitats
TLDR
Observations demonstrate that pogonophoran and vestimentiferan worms have higher plasticity in bacterial symbioses than previously suspected. Expand
Animal–Bacterial Endosymbioses of Gutless Tube-Dwelling Worms in Marine Sediments
TLDR
Observations demonstrate that pogonophoran and vestimentiferan worms have higher plasticity in bacterial symbioses than previously suspected. Expand

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