TY - JOUR
T1 - Copper tolerance, uptake and accumulation by Phragmites australis
AU - Ye, Z. H.
AU - Baker, A. J.M.
AU - Wong, M. H.
AU - Willis, A. J.
N1 - Funding Information:
This study was supported by a Postgraduate Scholarship from the University of Sheffield, UK; the Research Grants Council of University Committee, Hong Kong and the Research Committee, Hong Kong Baptist University, Hong Kong.
PY - 2003/2
Y1 - 2003/2
N2 - Copper (Cu) uptake and accumulation of five populations of Phragmites australis growing in two mine sites (Parys Mountain, Wales, UK and Plombières, Belgium) contaminated with Cu and three 'clean' sites (Felixstowe, UK; Wisbech, UK and Mai Po, Hong Kong) were studied under field and glasshouse conditions. Cu tolerances in these populations of seedlings raised from seeds collected from the above five sites were also studied under glasshouse conditions. Although concentrations of Cu in the plant tissues (leaves, stems, rhizomes and roots) of P. australis and the associated soils from the Cu-contaminated sites were significantly higher than those of the plant tissues and the soils collected in the clean sites, small differences were found between the two Cu-contaminated populations and the three clean populations when seedlings were grown in 0.1 and 0.5 μgml-1 Cu treatment solutions. In general, different populations of seedlings showed similar growth responses, metal uptake and indices of Cu tolerance when cultured in the same Cu treatment solution for 3 weeks. There was insufficient evidence to support the hypothesis that the Cu-contaminated populations have evolved to Cu-tolerant ecotypes.
AB - Copper (Cu) uptake and accumulation of five populations of Phragmites australis growing in two mine sites (Parys Mountain, Wales, UK and Plombières, Belgium) contaminated with Cu and three 'clean' sites (Felixstowe, UK; Wisbech, UK and Mai Po, Hong Kong) were studied under field and glasshouse conditions. Cu tolerances in these populations of seedlings raised from seeds collected from the above five sites were also studied under glasshouse conditions. Although concentrations of Cu in the plant tissues (leaves, stems, rhizomes and roots) of P. australis and the associated soils from the Cu-contaminated sites were significantly higher than those of the plant tissues and the soils collected in the clean sites, small differences were found between the two Cu-contaminated populations and the three clean populations when seedlings were grown in 0.1 and 0.5 μgml-1 Cu treatment solutions. In general, different populations of seedlings showed similar growth responses, metal uptake and indices of Cu tolerance when cultured in the same Cu treatment solution for 3 weeks. There was insufficient evidence to support the hypothesis that the Cu-contaminated populations have evolved to Cu-tolerant ecotypes.
KW - Copper uptake and accumulation
KW - Innate metal tolerance
KW - Populations Phragmites australis
UR - http://www.scopus.com/inward/record.url?scp=0346668160&partnerID=8YFLogxK
U2 - 10.1016/S0045-6535(02)00221-7
DO - 10.1016/S0045-6535(02)00221-7
M3 - Journal article
C2 - 12688493
AN - SCOPUS:0346668160
SN - 0045-6535
VL - 50
SP - 795
EP - 800
JO - Chemosphere
JF - Chemosphere
IS - 6
ER -