背角无齿蚌组织中的元素分布研究  

The Distribution of Elements in the Tissues of Mussel Anodonta woodiana

作　　者：李威[1,2] 杨健[1] 陈修报[1,2] 赵颖[1,2] 苏彦平[1] 刘洪波[1] 

机构地区：[1]中国水产科学研究院内陆渔业环境与资源重点开放实验室 中国水产科学研究院淡水渔业研究中心,江苏无锡214081 [2]南京农业大学无锡渔业学院,江苏无锡214081

出　　处：《农业环境科学学报》2010年第3期597-603,共7页Journal of Agro-Environment Science

基　　金：江苏省自然科学基金(BK2006030);中央级公益性科研院所基本科研业务费专项资金(6-115007);中国水产科学研究院内陆渔业生态环境和资源重点开放实验室开放基金课题(YZ2009-03)

摘　　要：利用Agilent7500ce型电感耦合等离子质谱仪研究了18种元素(Na、Mg、K、Ca、Zn、Mn、Fe、Al、Cu、Cr、Co、Ni、As、Se、Mo、Ag、Tl、Pb)在背角无齿蚌5种组织(外套膜、闭壳肌、足、鳃和内脏团)中的分布特征。结果表明,总体上鳃中元素的浓度最高,内脏团和外套膜次之,足和闭壳肌中较低。Ca、Mn、Mg、Zn、Al、Cu、Ni、As和Se9种元素浓度均在鳃中最高,Na在外套膜中浓度最高,K在足中浓度最高,Fe和Pb在内脏团中浓度最高。元素负荷量的绝大部分存在于重量较大的鳃和内脏团中,但近50%的Na却积累于外套膜、闭壳肌和足中。背角无齿蚌不同组织或器官对元素的积累具有明显的选择性。The bioaccumulation of 18 elements（Na, Mg, K, Ca, Zn, Mn, Fe, Al, Cu, Cr, Co, Ni, As, Se, Mo, Ag, Tl, and Pb）were evaluated in the five tissues （mantle, adductor muscle, foot, gill, and visceral mass）of Anodonta woodiana using an Agilent 7500ce inductively coupled plasma mass spectroscopy（ICP-MS）. A tissular selective accumulation of certain elements was found in Anodonta woodiana of both concentration and burden results in the present study. The greatest concentration of most elements was found in the gills, followed by the visceral mass and mantles, while those in the foot and adductor muscles were relatively low. The highest levels of Ca, Mn, Mg, Zn, Al, Cu, Ni, As, and Se were in the gills; those of Fe and Pb were in the visceral mass, that of Na was in the mantle, and that of K was in the foot, respectively. The gill and visceral mass generally accounted for the largest percentage of the whole soft body element burdens, whereas the mantle, foot and adductor muscle stored ca. 50% of the Na burden.

关 键 词：背角无齿蚌 元素 组织 浓度 负荷量 

分 类 号：X835[环境科学与工程—环境工程]