Disorders provoked by copper in the marine diatom Phaeodactylum tricornutum in short-time exposure asays
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Disorders provoked by copper in the marine diatom Phaeodactylum tricornutum in short-time exposure asaysFecha
1997Cita bibliográfica
Cid A, Torres E, Herrero C, Abalde JE. Disorders provoked by copper in the marine diatom phaeodactylum tricornutum in short-time exposure assays. Cah Biol Mar. 1997;38(3):201-6
Resumen
[Abstract] Copper toxicity on the marine diatom Phaeodactylwn tricomutum was assessed after 24.liours of exposure, using
different parameters: growth, 14C-bicarbonate assimilation, 3H-thymidine incorporation, photosynthetic pigment content,
and others assayed by flow cytometry, such as cellular volume, chlorophyll a autofluorescence and cell viability. Different
degrees of sensitivity were observed for the different analysis. Cell viability assayed by flow cytometry was the less sensitive
parameter. [Resume] La toxicite du cuivre sur la diatomee marine Phaeodactylum tricomutum. Cette toxicite a ete etudiee apres 24
heures d'exposition, par la mesure de differents parametres: croissance, assimilation de 14C-bicarbonate, incorporation de
3H-thymidine, teneur en pigment photosynthetique, et d'autres parametres evalues par cytometrie de flux, tels que Ie 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 Ie parametre Ie
moins sensible.
Palabras clave
Viability
Pigments
Copper
Marine diatom
Photosynthesis
Pigments
Copper
Marine diatom
Photosynthesis