Studies on Cadmium Accumulation by Some Selected Floating Macrophytes
The results of investigation of the process of cadmium accumulation by floating plants of Eichhornia crassipes and Pistia stratiotes are discussed. The main specialty of this study is that it puts more emphasis on the mechanism of penetration of pollutant within the plant and its fate
during accumulation act. As a result it was shown that at the first stage of cadmium uptake the sorption of the metal on the surface of the roots due to the presence of carboxylic groups takes place. At the root of the plant cadmium mainly localized in the cortex and rhizodermis, then the
pollutant penetrates into the tissues of the stem according to its translocation factor. It has been also assumed that flavonoids perform an intermediate role in the accumulation of cadmium by the plant, taking part in the transport and combat an oxidative stress.
Keywords: bioaccumulation; pollutant transport in plant; water contamination
Document Type: Research Article
Affiliations: 1: Nikolaev Institute of Inorganic Chemistry,Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia 2: Novosibirsk State University, Novosibirsk, Russia
Publication date: 26 November 2013
- Access Key
- Free content
- Partial Free content
- New content
- Open access content
- Partial Open access content
- Subscribed content
- Partial Subscribed content
- Free trial content