REDBIO México 2010
Folio: 513
Tipo de presentación: Cartel
Tema: EstrŽs Abi—tico
THE PHYSIOLOGICAL EVALUATION OF COPPER STRESS IN PHOTOSYNTHETIC PROTIST: Euglena gracilis.
"David Cervantes Garc’a 1*, Daniel Gonz‡lez-Mendoza 1*, , Onecimo Grimaldo Juarez1*, Adriana Morales-Trejo1*,2* Roberto Zamora-Bustillos
1Instituto de Ciencias Agr’colas, Universidad Aut—noma de Baja California (ICA-UABC). Carretera a Delta s/n, C—digo Postal 21705, Ejido Nuevo Le—n, Baja California, MŽxico 2 Instituto Tecnol—gico de Conkal. Km 16.3, Antigua Carretera MŽrida-Motul, Conkal, Yucat‡n, MŽxico, C. P. 97345 *"
RESUMEN (ABSTRACT)
The objective of this study was to evaluate the toxic effect of Cu2 + in the physiological development of E gracilis. The results showed that E. gracilis had an effect on the dosedependent growth to the concentration of metal. The exposure of E. gracilis metal at doses of 0.8 and 1.6 mM of Cu2+ showed a significant negative effect on the stability of DNA and photosynthetic pigments involved in capturing light in the antenna complex after 144 h of exposure to the metal.
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