Abstract
The effect of high zinc concentrations on the growth and photosynthetic apparatus of Setaria viridis (L.) Beauv. was investigated under laboratory conditions and a vegetation experiment. The experiments showed that zinc concentrations of 10−6 to 10−3 M did not influence seed germination. Moreover, zinc in concentrations of 40 and 80 mg kg substrate had no significant effect on most of the plant growth parameters. However, higher metal concentrations (160 and 320 mg kg substrate) inhibited shoot biomass, leaf area, inflorescence length, and biomass. At the same time, parameters such as the content of chlorophyll (a + b), F 0, Fv, and the Fv/Fm rate were not reduced even in the presence of zinc in the highest concentrations (320 mg kg substrate). S. viridis tolerance of high zinc concentrations, as well as its capacity to accumulate zinc in roots and shoots, suggests the plant can be used for phytoremediation of zinc polluted soils.
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Original Russian Text © N.M. Kaznina, A.F. Titov, G.F. Laidinen, A.V. Talanov, 2009, published in Izvestiya Akademii Nauk, Seriya Biologicheskaya, 2009, No. 6, pp. 677–684.
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Kaznina, N.M., Titov, A.F., Laidinen, G.F. et al. Setaria Viridis tolerance of high zinc concentrations. Biol Bull Russ Acad Sci 36, 575–581 (2009). https://doi.org/10.1134/S1062359009060053
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DOI: https://doi.org/10.1134/S1062359009060053