Ozaki T, Enomoto S, Minai Y, Ambe S, Makide Y
Radioisotope Center, School of Science, The University of Tokyo, Yayoi, Japan.
Biol Trace Elem Res. 2000 Jun;74(3):259-73. doi: 10.1385/BTER:74:3:259.
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).
通过仪器中子活化分析测定了96种蕨类植物（蕨类植物和蕨类近缘物种）中11种微量元素（钙、钪、铬、铁、钴、锌、铷、铯、钡、镧和铈）的浓度，以评估每种元素的浓度范围，并找出微量元素吸收的物种特征。在96种蕨类植物中，发现三叉蕨积累钪、铬和钴的浓度最高。暗鳞鳞毛蕨的钙和锌浓度最高。其他蕨类植物仅表现出一种浓度最高的元素。发现铁和钪的浓度之间以及铬和钴的浓度之间存在正相关。主要在多样化的属（鳞毛蕨科的耳蕨属和鳞毛蕨属、岩蕨科的双盖蕨属以及铁角蕨科的铁角蕨属）中观察到镧系元素（镧和铈）的显著积累。
