Disorders provoked by copper in the marine diatom Phaeodactylum tricornutum in short-time exposure assays

La toxicite du cuivre sur la diatomee marine Phaeodactylum tricornutum. Cette toxicite a ete etudiee apres 24 heures d'exposition, par la mesure de differents parametres : croissance, assimilation de 14 C-bicarbonate, incorporation de 3 H-thymidine, teneur en pigment photosynthetique, et d'autres parametres evalues par cytometrie de flux, tels que le volume cellulaire, l'autofluorescence de la chlorophylle a et la viabilite cellulaire. Differents degres de sensibilite ont ete observes pour les differentes analyses. La viabilite cellulaire, etudiee par cytometrie de flux, s'est averee comme le parametre le moins sensible.

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