Semipurification et activité inhibitrice de la recristallisation de glace dans les substances associées aux organismes photosynthétiques de l'Antarctique, qui modifient la forme des cristaux de glace.

Semipurification and ice recrystallization inhibition activity of ice-active substances associated with Antarctic photosynthetic organisms.

Type d'article : Article

Résumé

Ice-active substances (IASs), i.e. macromolecular substances that modify the shape of growing ice crystals, were previously found to be associated with various terrestrial and aquatic photosynthetic organisms from Antarctica, but their chemical nature and function were unknown. The study investigated the ice-binding properties of IASs. The results raise the possibility that the IASs increase freezing tolerance of their respective organisms by preventing the recrystallization of ice.

Détails

Titre original : Semipurification and ice recrystallization inhibition activity of ice-active substances associated with Antarctic photosynthetic organisms.
Identifiant de la fiche : 2002-2144
Langues : Anglais
Source : Cryobiology - vol. 43 - n. 1
Date d'édition : 08/2001

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Indexation

Thèmes : Influence du froid sur les micro-organismes, virus et vaccins
Mots-clés : Glace; Cryobiologie; Micro-organisme; Antarctique; Purification; Molécule