Wang H B, Wong M H, Lan C Y, Baker A J M, Qin Y R, Shu W S, Chen G Z, Ye Z H
State Key Laboratory for Bio-control and School of Life Sciences, Sun Yat-sen (Zhongshan) University, Guangzhou 510275, PR China.
Environ Pollut. 2007 Jan;145(1):225-33. doi: 10.1016/j.envpol.2006.03.015. Epub 2006 Jun 13.
A field survey was conducted at a deserted arsenic (As) mine in Guangxi Province, China to explore new potential As hyperaccumulators. In addition, young plants of 11 Pteris taxa were grown in glasshouse conditions for 12 weeks on As-amended soils with 0, 50 and 200 mg As kg(-1). Results of the field survey showed that the fern Pteris fauriei accumulated over 1000 mg As kg(-1) in its fronds. Of the 11 Pteris taxa, Pteris aspericaulis, Pteris cretica var. nervosa, P. fauriei, Pteris multifida, P. multifida f. serrulata, and Pteris oshimensis were all found to hyperaccumulate As in addition to P. cretica 'Albo-Lineata' and Pteris vittata (already reported as As hyperaccumulators). However, Pteris ensiformis, Pteris semipinnata and Pteris setuloso-costulata showed no evidence of As hyperaccumulation. Results also revealed a constitutive property of As hyperaccumulation in different populations of P. cretica var. nervosa, P. multifida, P. oshimensis and P. vittata.
在中国广西的一个废弃砷矿进行了实地调查，以探索新的潜在砷超富集植物。此外，将11种凤尾蕨属植物的幼苗在温室条件下，种植在添加了0、50和200毫克砷/千克的土壤中12周。实地调查结果表明，傅氏凤尾蕨的叶片中砷积累量超过1000毫克/千克。在这11种凤尾蕨属植物中，除了克里特凤尾蕨‘银线’和蜈蚣草（已报道为砷超富集植物）外，刺齿凤尾蕨、克里特凤尾蕨变种、傅氏凤尾蕨、多羽凤尾蕨、多羽凤尾蕨锯齿变型和尾叶凤尾蕨也都被发现能超富集砷。然而，剑叶凤尾蕨、半边旗和溪边凤尾蕨没有砷超富集的迹象。结果还揭示了克里特凤尾蕨变种、多羽凤尾蕨、尾叶凤尾蕨和蜈蚣草不同种群中砷超富集的固有特性。
