The University of Southampton
University of Southampton Institutional Repository

Interactions between Cd and Cu, and Zn influence particulate phytochelatin concentrations in marine phytoplankton: Laboratory results and preliminary field data

Record type: Article

The effect of metal interactions on phytochelatin production by marine phytoplankton has received little attention but yet is critical to understanding the biochemical production of this potentially important metal-binding ligand in the field. Cd, Cu, and Zn additions were made singly and in combination to three species of laboratory cultures and to a natural algal assemblage from pristine coastal seawater. In the laboratory cultures intracellular phytochelatin varied with metal exposure and demonstrated metal- and concentration-dependent synergisms and antagonisms. Most notably, the addition of all three metals together greatly suppressed phytochelatin production in all cultures. Particulate phytochelatin was also measured at two field sites. In the field, phytochelatin production is related to ambient Cd, Cu, and Zn levels, and the deviations from the dose?response relationship are potentially explained by metal interactions similar to those observed in the laboratory cultures. Though particulate glutathione concentrations were very low in some field samples, it did not appear to limit phytochelatin production. Particulate phytochelatin concentrations in samples from both field sites were very similar to those measured in the laboratory cultures when exposed to all three metals together, and thus phytochelatin levels in the field may be regulated by the interaction of Cd, Cu, and Zn.

Full text not available from this repository.

Citation

Wei, Liping, Donat, John R., Fones, Gary and Ahner, Beth A. (2003) Interactions between Cd and Cu, and Zn influence particulate phytochelatin concentrations in marine phytoplankton: Laboratory results and preliminary field data Environmental Science & Technology, 37, (16), pp. 3609-3618. (doi:10.1021/es0340026).

More information

Published date: 15 August 2003

Identifiers

Local EPrints ID: 13967
URI: http://eprints.soton.ac.uk/id/eprint/13967
ISSN: 0013-936X
PURE UUID: 234ad9d7-71ec-4913-95d0-b7000835b86f

Catalogue record

Date deposited: 21 Dec 2004
Last modified: 17 Jul 2017 16:59

Export record

Altmetrics

Contributors

Author: Liping Wei
Author: John R. Donat
Author: Gary Fones
Author: Beth A. Ahner

University divisions


Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×