Preliminary characterisation of the blue-green pigment “marennine” from the marine tychopelagic diatom Haslea ostrearia (Gaillon/Bory) Simonsen - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Journal of Applied Phycology Année : 2006

Preliminary characterisation of the blue-green pigment “marennine” from the marine tychopelagic diatom Haslea ostrearia (Gaillon/Bory) Simonsen

Jean-Bernard Pouvreau
Michèle Morançais
  • Fonction : Auteur
Philippe Rosa
  • Fonction : Auteur
Laurent Thion
  • Fonction : Auteur
Blanche Cahingt
  • Fonction : Auteur
Franck Zal
Joël Fleurence
  • Fonction : Auteur
Pierre Pondaven
  • Fonction : Auteur

Résumé

Haslea ostrearia is a common marine tychopelagic diatom which has the particularity of synthesizing a blue-green hydrosoluble pigment called “marennine”. This pigment, when released into the external medium, is known to be responsible for the colour of oyster gills. Here we present results for main biophysical and biochemical characteristics of pure intra- and extracellular marennine. Tests for chemical determination show that the nature of the two forms of marennine cannot be distinguished and could be related to a polyphenolic compound. Nevertheless, based on spectral properties and the molecular weight, which is about 10751 ± 1 and 9893 ± 1 Da, for the intracellular and extracellular forms respectively, we assess that the pigment accumulated in the apex of the cell and the one released in the external medium have probably distinct molecular structures.

Domaines

Biophysique
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Dates et versions

hal-00412869 , version 1 (02-09-2009)

Identifiants

  • HAL Id : hal-00412869 , version 1

Citer

Jean-Bernard Pouvreau, Michèle Morançais, Fabrice Fleury, Philippe Rosa, Laurent Thion, et al.. Preliminary characterisation of the blue-green pigment “marennine” from the marine tychopelagic diatom Haslea ostrearia (Gaillon/Bory) Simonsen. Journal of Applied Phycology, 2006, 18 (6), pp.757-767. ⟨hal-00412869⟩
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