Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/7878
Title: Testing the Use of the Water Milfoil ( Myriophyllum spicatum L.) in Laboratory Toxicity Assays
Authors: Sánchez, David 
Graça, Manuel 
Canhoto, Jorge 
Issue Date: 2007
Citation: Bulletin of Environmental Contamination and Toxicology. 78:6 (2007) 421-426
Abstract: Abstract Tests aiming to determine the toxic properties of compounds discharged into aquatic systems have relied more on fish or invertebrates than on primary producers and among a number of producers; algae are the most popular test organisms. Macrophytes are important ecological elements in freshwaters and are therefore potentially key organisms for use in toxicity testing of compounds suspected of acting in primary producers. The most common macrophyte used in toxicity testing is Lemna sp., but as a floating plant, it has the limitation of being exposed to toxic compounds only through its lower leaf surface, including roots and rhizoids. Therefore, it is questionable whether tests with Lemna may accurately predict potential effects on submersed and exposed plant species, which have different routs of exposure and morphology. Few other submersed macrophytes have been tested, notably Myriophyllum. In the Iberian peninsula M. spicatum is the most common species within its genus and has been presented as a good bioaccumulator of heavy metals (Wang et al. 1996) and as being sensitive to several toxicants (e.g. Hanson et al. 2003). The aim of this study was to assess the potential of M. spicatum as a testing organism in laboratory assays, by obtaining axenic cultures of this plant and exposing them to several reference compounds to determine the sensitive endpoints.
URI: http://hdl.handle.net/10316/7878
DOI: 10.1007/s00128-007-9131-9
Rights: openAccess
Appears in Collections:FCTUC Ciências da Vida - Artigos em Revistas Internacionais

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