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Conditions de digestion et activité de quelques polysaccharidases dans le tube digestif de l'oursin Paracentrotus lividus (Echinodermata)
Claereboudt, M.; Jangoux, M. (1985). Conditions de digestion et activité de quelques polysaccharidases dans le tube digestif de l'oursin Paracentrotus lividus (Echinodermata). Biochem. Syst. Ecol. 13(1): 51-54. dx.doi.org/10.1016/0305-1978(85)90013-4
In: Biochemical systematics and ecology. Elsevier: Oxford; New York. ISSN 0305-1978, more
Peer reviewed article  

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Keyword
    Marine
Author keywords
    Paracentrotus lividus; Echinidae; see urchin; digestin; polysaccharides; cellulase; amylase

Authors  Top 
  • Claereboudt, M.
  • Jangoux, M., more

Abstract
    The pH level of the gut fluid of the echinoid P. lividus is slightly acidic and its oxygen content is low (from 5 to 8%). An amylase and a cellulase-like enzyme are secreted by the echinoid stomach. Amylolytic activities have been detected also in food pellets from the stomach and from the posterior part of the intestine. This activity of intestinal pellets could be of microbial origin.

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