Uptake of 133Cs and 134Cs by Ceratophyllum demersum L. under field and greenhouse conditions

Caesium-133 Accumulation by Freshwater Macrophytes: Partitioning of Translocated Ions and Enzyme Activity in Plants and Microorganisms

“…Vacula et al [15] recently reported on Cs accumulation by C. demersum L. under laboratory and field conditions with a Cs concentration range comparable with that in our study. Thus, in the sets with initial Cs concentrations of 8 and 1067 µM after 8 days, the plant biomass accumulated on average 78 and 6248 mg/kg Cs, respectively [15]. In our study, after 10 days, at initial Cs concentrations of 10 and 1000 µM, 201.3 and 8763.2 mg/kg Cs, respectively, were accumulated by C. submersum (Figure 1A).…”

“…However, the non-even distribution of Cs-133 in plant organs with greater amounts of Cs in younger parts of stems and leaf blades indicated the selective sorption of Cs by plants [4]. Vacula et al [15] recently reported on Cs accumulation by C. demersum L. under laboratory and field conditions with a Cs concentration range comparable with that in our study. Thus, in the sets with initial Cs concentrations of 8 and 1067 µM after 8 days, the plant biomass accumulated on average 78 and 6248 mg/kg Cs, respectively [15].…”

“…The values of TF are species-specific and greatly depend on the environmental conditions and the period of plant contact with metals [3,15]. For example, the TF of Cs from soil by shoots and brown rice ranged from 0.018 to 0.068 and 0.004 to 0.065, respectively [1].…”

“…The partitioning of Cs among the abiotic and biotic compounds of aquatic ecosystems depends on many factors, e.g., mineralogical composition of suspended and bottom sediments, abundance of monovalent cations, and the characteristic geochemistry of water [10,11]. Many studies have been conducted with stable Cs-133 due to the similarities in the distribution of radiocaesium and Cs-133 in soil, sediment, and water [3,[13][14][15].…”