文献类型：期刊文章

作　　者：龙新宪[1] 杨肖娥[1] 叶正钱[1] 倪吾钟[1] 石伟勇[1]

机构地区：[1]浙江大学环境与资源科学学院农业化学研究所,杭州310029

出　　处：《Acta Botanica Sinica》

基　　金：国家杰出青年科学基金 ( 3992 5 0 2 4)~~

年　　份：2002

卷　　号：44

期　　号：2

起止页码：152-157

语　　种：中文

收录情况：CSCD、CSCD2011_2012、SCI-EXPANDED(收录号：WOS:000174339100005)、SCOPUS、WOS、普通刊

摘　　要：Four species of Sedum L. were grown in nutrient solution for the comparison of their Zn uptake and accumulation. S. alfredii Hance showed much greater tolerance to Zn than the other three species. Shoot and root yields of S. sarmentosum Bunge, S. bulbiferum Makino, and S. emarginatum Migo decreased with increasing Zn concentration in the solution, while shoot and root yields of S. alfredii increased when Zn concentration was ≤80 mg·L -1. At 80 mg·L -1 Zn, Zn concentration in shoots of S. alfredii reached 19.09 mg·g -1. S. alfredii was also more efficient in Zn translocation from roots to shoots, while Zn concentration in shoots was much higher than in roots. However, this was not the case for the other three species. The results showed that S. alfredii is a Zn hyperaccumulator and could be useful for the phytoremediation of Zn-contaminated soils.

关 键 词：ZINC UPTAKE hyperaccumulation, Sedum alfredii  

分 类 号：Q949.751.1[植物生产类]