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Interactions de la proline, sérine et leucine avec le thylakoides d'épinards isolés : la charge en soluté pendant la congélation n'est pas liée à la fluidité de la membrane.

Interactions of proline, serine, and leucine with isolated spinach thylakoids: solute loading during freezing is not related to membrane fluidity.

Auteurs : POPOVA A. V., SCHMITT J. M., HINCHA D. K.

Type d'article : Article

Résumé

Interestingly, the data indicate that the vastly different effects the three amino acids have on photophosphorylation capacity of thylakoids during a freeze-thaw cycle are all correlated with binding to the membranes and a resulting reduction of lipid fluidity in the glycerol backbone region of the membrane. This increase in anisotropy was clearly limited to the membrane surface region. A mechanistic interpretation of these data is currently only possible in the case of the cryoprotective effects of proline.

Détails

  • Titre original : Interactions of proline, serine, and leucine with isolated spinach thylakoids: solute loading during freezing is not related to membrane fluidity.
  • Identifiant de la fiche : 1999-3889
  • Langues : Anglais
  • Source : Cryobiology - vol. 37 - n. 1
  • Date d'édition : 08/1998

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