Uptake of Stable Strontium by Plants and Effects on Plant Growth

TLDR: In contrast to the numerous publications on uptake of radioactive strontium (85Sr, 89Sr and 90Sr) and its effects on plant growth, only a few articles exist on the uptake of stable Sr2+ and its possible effects on the plant growth as discussed by the authors.

Abstract: In contrast to the numerous publications on uptake of radioactive strontium (85Sr, 89Sr, and 90Sr) and its effects on plant growth resulting from irradiation by strontium or its radioactive daughter nuclides (e.g., Y-90), only a few articles exist on the uptake of stable Sr2+ and its possible effects on plant growth. Nevertheless there are two reasons why uptake of stable Sr2+ and its effects on plant growth are of great importance. First, from the viewpoint of plant physiology and plant nutrition it is interesting to know both the uptake and the effects of stable Sr2+ in relationship to the chemically related Ca2+. Similar study has already been carried out with other corresponding groups of ions (Li+ and Ca2+, Rb+ and K+, Br- and Cl-, or SO 4 2- and SeO 4 2- , PO 4 3- and ArO 4 3- ). With respect to the uptake and translocation of stable Sr2+ by the plant (but not with regard to its effects on plant growth), studies with radioactive strontium isotopes are very helpful. Second, from the ecological viewpoint, it is worthwhile to obtain information on regional and species differences in plant uptake and effects of stable Sr2+ on growth.