A survey of trace elements in pteridophytes |
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| Authors: | Takuo Ozaki Schuichi Enomoto Yoshitaka Minai Shizuko Ambe Yoshihiro Makide |
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| Institution: | (1) Radioisotope Center, School of Science, The University of Tokyo, Yayoi, 113-0032 Tokyo, Japan;(2) The Institute of Physical and Chemical Research (RIKEN), Wako, 351-0198 Saitama, Japan;(3) Faculty of Humanities, Musashi University, Toyotama-kami, 176-8534 Tokyo, Japan |
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| Abstract: | Concentration of 11 trace elements (Ca, Sc, Cr, Fe, Co, Zn, Rb, Cs, Ba, La, and Ce) in 96 pteridophytes (fern and fern ally
species) was determined by instrumental neutron activation analysis to evaluate a concentration range for each element and
also to find species characteristic in the uptake of trace elements. Asplenium trichomanes was found to accumulate Sc, Cr, and Co to the highest concentrations among 96 pteridophytes. The highest concentration of
Ca and Zn was observed for Asplenium obscurum. The other Pteridophytes exhibited only one element whose concentration was the highest. A positive correlation was found
between the concentrations of Fe and Sc, and also between the concentrations of Cr and Co. The remarkable accumulation of
lanthanides (La and Ce) was observed mainly in diversifying genera (Polystichum and Dryopteris in Dryopteridaceae, Diplazium in Woodsiaceae, and Asplenium in Aspleniaceae). |
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| Keywords: | Pteridophytes fern fern ally concentration trace element |
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