Lemna minor is frequently used in bioremediation processes to remove nutrients and contaminants from waste water. In this work the response of L. minor to treatments with lanthanum nitrate and with a mix of several light rare earth elements (REE) nitrates was investigated. Preliminary results indicate that L. minor shows an overall good tolerance to the presence of REE in the media. Toxic effects were observed after prolonged exposition to high concentration of REE. An increase in ascorbate and glutathione content as well as in ascorbate peroxidase, dehydroascorbate reductase and ascorbate free radical (AFR) reductase activity was observed in treated plants
Effect of rare earth elements on growth and antioxidant metabolism in Lemna minor L
PACIOLLA, Costantino;TOMMASI, Franca
2007-01-01
Abstract
Lemna minor is frequently used in bioremediation processes to remove nutrients and contaminants from waste water. In this work the response of L. minor to treatments with lanthanum nitrate and with a mix of several light rare earth elements (REE) nitrates was investigated. Preliminary results indicate that L. minor shows an overall good tolerance to the presence of REE in the media. Toxic effects were observed after prolonged exposition to high concentration of REE. An increase in ascorbate and glutathione content as well as in ascorbate peroxidase, dehydroascorbate reductase and ascorbate free radical (AFR) reductase activity was observed in treated plantsI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
