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藻类富集重金属的特点及其应用展望

陆开形1,2;唐建军2;蒋德安2   

  1. 1宁波大学生命科学与生物工程学院,宁波 315211;2浙江大学生命科学学院,杭州 310029

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-01-18 发布日期:2006-01-18

Characteristics of heavy metals enrichment in algae and its application prospects

LU Kaixing1,2;TANG Jianjun2;JIANG De'an2   

  1. 1School of Life Science and Biotechnology,Ningbo University,Ningbo 315211,China;2College of Life Sciences,Zhejiang University,Hangzhou 310029,China

  • Received:1900-01-01 Revised:1900-01-01 Online:2006-01-18 Published:2006-01-18

摘要: 以藻类植物为主要对象的水体重金属修复已成为环境科学领域的研究热点.由于其特殊的细胞壁结构、较高的重金属富集能力、简便的解吸附方法等特点,藻类被认为是理想的生物吸附材料.文中简述了藻类适宜高富集重金属的结构及代谢特点,包括具有较高富集重金属能力的细胞壁功能基团、胞外产物、细胞内重金属螯合蛋白,以及生活藻类、死亡藻体及固定化处理后所表现出的高富集能力及简便的解吸附方法等,并对其用于污染水体修复的优缺点及应用趋势进行分析.

关键词: 浮游动物, 初级生产力, 稳定同位素, 食物网, 水生态系统

Abstract: Using algae to bio-remedy heavy metals-contaminated waters has become an available and practical approach for environmental restoration.Because of its special cell wall structure,high capacity of heavy metal-enrichment,and easy to desorption,algae has been considered as an ideal biological adsorbent.This paper briefly introduced the structural and metabolic characteristics adapted for heavy metals enrichment of algae,including functional groups on cell wall,extracellular products,and intracellular heavy metals-chelating proteins,discussed the enrichment capability of living,dead and immobilized algae as well as the simple and convenient ways for desorption,and analyzed the advantages and disadvantages of using algae for bioremediation of polluted water,and its application prospects.

Key words: food web, primary productivity, aquatic ecosystem., zooplankton, stable isotope