Growth and bioaccumulation characteristics of watercress (Nasturtium officinaleR. BR.) exposed to cadmium, cobalt and chromium

Abstract

The aim of this study is to determine the effects of Cd, Co and Cr on the growth of watercress (Nasturtium officinale) and to determine the bioaccumulation properties of these heavy metals by the plant. N. officinale individuals were exposed to different concentrations of Cd, Co and Cr for 72 h. Relative growth rates (RGR) and bioconcentration factor (BCF) ratios were calculated for each metal concentration. RGR values of plants exposed to Co slightly increased in lower concentrations, but then decreased again. In contrast, RGR values of plants exposed to Cd and Cr decreased linearly. Significant positive relationships were observed among the concentrations of Cd, Co and Cr in N. officinale and in the culture solution. BCF ratios were highest for plants exposed to Co, and lowest for plants exposed to Cr. The most efficient uptake of Cd, Co and Cr occurred at the external solution concentrations at 0.5, 0.5 and 10 mM, respectively.

Chromium and Nickel Accumulation by Plants Along an Altitudinal Gradient in Western Carpathian Secondary Spruce Stands

“…Plants growing at 635-650 m are shown as worse Cr accumulators. [35] studied bioaccumulation characteristics of Nasturtium officinale species exposed to Cr and they also found relatively low bioconcentration factors for this species grown in different metal concentrations.…”

Heavy metal accumulation in the leaves, stem and root of the invasive submerged macrophyte Myriophyllum spicatum L. (Haloragaceae): an example of Kadin Creek (Mugla, Turkey)

“…The use of macrophyte as biological indicator in monitoring the heavy metals has some advantages as they tolerate high concentrations of the heavy metals in the water their samplings are easy and individuals are big (Zhou et al 2008). Due to their role as biological indicators for heavy metals and their capacity in refining the water from the contaminants, aquatic macrophytes have recently been a focus (Duman et al 2009;Kara 2010;Fawzy et al 2011). In this study, the bioaccumulation of heavy metals such as Cr, As, Cd, Hg and Pb in the roots, stem and leaves of Myriophyllum spicatum which were collected from the Kadın Creek in seasonal periods were analyzed.…”

The accumulation of La, Ce and Y by Lemna minor and Lemna gibba in the Keban gallery water, Elazig Turkey

“…The harvested plant biomass can be burned to produce biogas and energy, and the remaining ash can be processed as ‘bio‐ore’ (Duman et al . ). Ippolito et al .…”