Efecto del cadmio sobre la germinación in vitro de Erato polymnioides

Abstract

Abstract: Erato polymnioides is an Asteraceae known for its ability to absorb metals heavy and has a wide distribution from 360 to 3050 m a.s.l. Therefore in this research we propose to evaluate the germination and growth behavior of this species when exposed to different concentrations of cadmium. To evaluate it, used as starting material seeds that were soaked in water or cadmium and were sown in boxes or in MS culture media. The culture medium was used with and without cadmium. The cadmium concentrations, for imbibition and for the media, were 2, 6 and 12 mg/L, and the control. Data on germination, growth, and leaf formation were recorded. cotyledonary and true; and chlorophyll formation. It was found that cadmium stimulates the germination of E. polymnioides seeds, and they adapt and develop seedlings are better when they are imbibed in cadmium up to concentrations of 6mg/L, since 12mg/L affected its development. This essay gives us guidelines on the usefulness of this species in phytoremediation programs.