Accumulation of cadmium, chromium, and zinc by the moss Sphagnum papillosum Lindle

被引:23
作者
Gstoettner, EM [1 ]
Fisher, NS [1 ]
机构
[1] SUNY STONY BROOK,MARINE SCI RES CTR,STONY BROOK,NY 11794
关键词
moss; cadmium; chromium; zinc; bioindicators; contamination;
D O I
10.1007/BF02404764
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In a series of laboratory experiments employing radiotracer methodology, the uptake of Cd, Cr, and Zn by Sphagnum papillosum Lindle moss from solutions of deionized water and bog water was investigated. Bioaccumulation of the metals was a passive process, since living and dead moss accumulated metal equally. No significant differences were found in metal uptake rates from single metal solutions and mixed metal solutions, suggesting insignificant competition between the metals occurred at the low concentration range used (10(-10) to 10(-7) M). Metal uptake conformed with Freundlich adsorption isotherms. Concentration factors of metals in Sphagnum papillosum in bog water (10(3) for Cd and Zn, 10(2) for Cr) were lower than in deionized water (10(4) for Cd and Zn, 10(3) for Cr), possibly due to metal complexation by dissolved organic matter, competition by other major cations present in the bog water (Na+, K+, Mg2+, Ca2+) or complexation by chlorides in the bog water. While earlier studies have demonstrated the potential of using sphagnum mosses for monitoring environmental metal contamination, these experiments are the first to assess metal uptake in moss using low, environmentally realistic metal concentrations. The results confirm that mosses would be very effective bioindicators of environmental metal concentrations because the concentration of metal in the moss rapidly and directly reflects the metal concentrations in the ambient water.
引用
收藏
页码:321 / 330
页数:10
相关论文
共 20 条
[1]  
ANSCHUTZ L, 1954, FLORA JENA, V141, P178
[2]   SIGNIFICANCE OF CATION EXCHANGE FOR CATION CONTENTS OF LIVING SPHAGNUM [J].
BREHM, K .
PLANTA, 1968, 79 (04) :324-&
[3]  
BREUER K, 1989, OECOLOG PLANTAR, V82, P461
[4]  
Brown D.H., 1982, Bryophyte Ecology, P383, DOI DOI 10.1007/978-94-009-5891-3_11
[5]   INTRACELLULAR AND EXTRACELLULAR UPTAKE OF CADMIUM BY THE MOSS RHYTIDIADELPHUS-SQUARROSUS [J].
BROWN, DH ;
BECKETT, RP .
ANNALS OF BOTANY, 1985, 55 (02) :179-188
[6]   KINETICS OF ION-EXCHANGE IN SOIL ORGANIC-MATTER .4. ADSORPTION AND DESORPTION OF PB2+, CU2+, CD2+, ZN2+ AND CA2+ BY PEAT [J].
BUNZL, K ;
SCHMIDT, W ;
SANSONI, B .
JOURNAL OF SOIL SCIENCE, 1976, 27 (01) :32-41
[7]  
CLEMENT M, 1990, DISSERTATIONES BOT, V164
[8]   THE RELEASE OF TRACE-ELEMENTS BY DYING MARINE-PHYTOPLANKTON [J].
FISHER, NS ;
WENTE, M .
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, 1993, 40 (04) :671-694
[9]   UPTAKE OF METAL-IONS IN MOSS FROM ARTIFICIAL PRECIPITATION [J].
GJENGEDAL, E ;
STEINNES, E .
ENVIRONMENTAL MONITORING AND ASSESSMENT, 1990, 14 (01) :77-87
[10]   METAL CONTENT OF SPHAGNUM MOSSES FROM 2 NORTHERN CANADIAN BOG ECOSYSTEMS [J].
GLOOSCHENKO, WA ;
CAPOBIANCO, JA .
WATER AIR AND SOIL POLLUTION, 1978, 10 (02) :215-220