%0 Journal Article
%T Influence of gallic acid and SDS on the subcellular and chemical form distribution of heavy metals in Ryegrass (Lolium perenne L.)<br>Gallic acid和SDS对黑麦草体内重金属亚细胞及形态分布的影响
%A 冉文静
%A 傅大放
%J 环境科学学报
%D 2010
%I 
%X The commonly used chelating agent gallic acid (3,4,5-trihydroxybenzoic acid, 5 mmol·kg-1), the surfactant SDS (sodium dodecyl sulfate, 1 mmol·kg-1) and the accumulator Lolium perenne L. were selected for use in pot experiments to investigate the effects of gallic acid and SDS on the subcellular distribution and chemical form of heavy metals in Lolium perenne L. The results showed that dosing with gallic acid enhanced the role of Lolium perenne L. in compartmentalizing cadmium and lead, and depositing zinc. Dosing with both gallic acid and SDS enhanced the compartmentalizing and depositing of cadmium, and depositing of zinc. Adding gallic acid alone increased the uptake of total cadmium by 33.5% and zinc by 6.0%, while the non-labile cadmium and zinc were increased by 6.2% and 6.3%, respectively. By dosing with gallic acid and SDS, the total cadmium increased by 35.6% but zinc dropped by 1.1%; the non-labile cadmium and zinc were increased by 7.2% and 8.6%, respectively, and the chelation of cadmium and zinc was enhanced. The subcellular distribution and chemical form of lead did not change under either set of conditions.
%K heavy metals
%K phytoextraction
%K subcellular distribution
%K chemical form distribution<br>重金属
%K 植物提取
%K 亚细胞分布
%K 形态分布
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=112F5639E588782ED787408070CFA0A3&yid=140ECF96957D60B2&vid=340AC2BF8E7AB4FD&iid=708DD6B15D2464E8&sid=FB54361CEDA6DB8D&eid=561B828162949051&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=0&reference_num=0