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Copper uptake by four Elsholtzia ecotypes supplied with varying levels of copper in solution culture.
Environ Int. 2005 Aug; 31(6):880-4.EI

Abstract

The effects of copper (Cu) on the yield and Cu uptake of three ecotypes of Elsholtzia splendens and one of Elsholtzia argyi were studied using solution culture. Three Cu concentrations were compared: 0.31 (control), 50 and 100 micromol L(-1). Although E. argyi took up more Cu in the aboveground parts, typical visual symptoms of Cu toxicity appeared when the plants grew in 50 and 100 micromol Cu L(-1). In contrast, plants from all three populations of E. splendens showed high Cu tolerance and substantial shoot Cu accumulation of 58-144 mg kg(-1). Shoot Cu concentrations were about 16-27 times higher than root Cu concentrations. Root-to-shoot ratio of the E. argyi ecotype was halved when Cu was supplied at a level of 100 mg L(-1) compared to the control (0.31 mg L(-1)) but the ratio increased by 6-47% in the three E. splendens ecotypes. The increase in root-to-shoot ratio in E. splendens may be a mechanism by which the plants can tolerate high Cu concentrations. There were few differences in morphology among the three E. splendens ecotypes in response to added Cu. The results are discussed in relation to the possible use of E. splendens as a pioneer species in the phytostabilization of Cu-contaminated soils.

Authors+Show Affiliations

Soil and Environment Bioremediation Research Centre, Institute of Soil Science, Chinese Academy of Sciences, PO Box 821, Nanjing 210008, Jiangsu Province, PR China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16005517

Citation

Weng, Gaoyi, et al. "Copper Uptake By Four Elsholtzia Ecotypes Supplied With Varying Levels of Copper in Solution Culture." Environment International, vol. 31, no. 6, 2005, pp. 880-4.
Weng G, Wu L, Wang Z, et al. Copper uptake by four Elsholtzia ecotypes supplied with varying levels of copper in solution culture. Environ Int. 2005;31(6):880-4.
Weng, G., Wu, L., Wang, Z., Luo, Y., & Christie, P. (2005). Copper uptake by four Elsholtzia ecotypes supplied with varying levels of copper in solution culture. Environment International, 31(6), 880-4.
Weng G, et al. Copper Uptake By Four Elsholtzia Ecotypes Supplied With Varying Levels of Copper in Solution Culture. Environ Int. 2005;31(6):880-4. PubMed PMID: 16005517.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Copper uptake by four Elsholtzia ecotypes supplied with varying levels of copper in solution culture. AU - Weng,Gaoyi, AU - Wu,Longhua, AU - Wang,Ziqiang, AU - Luo,Yongming, AU - Christie,Peter, PY - 2005/7/12/pubmed PY - 2005/12/13/medline PY - 2005/7/12/entrez SP - 880 EP - 4 JF - Environment international JO - Environ Int VL - 31 IS - 6 N2 - The effects of copper (Cu) on the yield and Cu uptake of three ecotypes of Elsholtzia splendens and one of Elsholtzia argyi were studied using solution culture. Three Cu concentrations were compared: 0.31 (control), 50 and 100 micromol L(-1). Although E. argyi took up more Cu in the aboveground parts, typical visual symptoms of Cu toxicity appeared when the plants grew in 50 and 100 micromol Cu L(-1). In contrast, plants from all three populations of E. splendens showed high Cu tolerance and substantial shoot Cu accumulation of 58-144 mg kg(-1). Shoot Cu concentrations were about 16-27 times higher than root Cu concentrations. Root-to-shoot ratio of the E. argyi ecotype was halved when Cu was supplied at a level of 100 mg L(-1) compared to the control (0.31 mg L(-1)) but the ratio increased by 6-47% in the three E. splendens ecotypes. The increase in root-to-shoot ratio in E. splendens may be a mechanism by which the plants can tolerate high Cu concentrations. There were few differences in morphology among the three E. splendens ecotypes in response to added Cu. The results are discussed in relation to the possible use of E. splendens as a pioneer species in the phytostabilization of Cu-contaminated soils. SN - 0160-4120 UR - https://www.unboundmedicine.com/medline/citation/16005517/Copper_uptake_by_four_Elsholtzia_ecotypes_supplied_with_varying_levels_of_copper_in_solution_culture_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0160-4120(05)00102-9 DB - PRIME DP - Unbound Medicine ER -