The use of Lemna minor for evaluation of fluoranthene toxicity
| Authors | |
|---|---|
| Year of publication | 2011 |
| Type | Article in Proceedings |
| Conference | MendelNet 2011 - Proceedings of International Ph.D. Students Conference |
| MU Faculty or unit | |
| Citation | |
| Web | Plný text sborníku konference MendelNet2011 |
| Field | Physiology |
| Keywords | PAH fluoranthene; Lemna minor; growth; chlorophyll fluorescence; photosynthetic pigments; |
| Description | The aim of this study was to evaluate the effect of fluoranthene (FLT), which is one of the most abundant PAHs with ubiquitous environmental distribution, and its increasing concentration (0, 0.1 and 1 mg.l–1) on growth of Lemna minor L. (number of plants, leaf area) and primary photosynthetic processes (parameters of chlorophyll fluorescence and content of photosynthetic pigments). These rapidly-growing plants have found uses as a model system for studies in community ecology, ecotoxicology, production of biopharmaceuticals and as a source of animal feeds for agriculture and aquaculture. Significant decrease of plant number, biomass production and leaf area size was recorded only after 4 days of cultivation in FLT 1 mg.l–1 treatment, whereas the lower concentration FLT 0.1 mg.l–1 stimulated temporarily the content of photosynthetic pigments. Surprisingly, after 10 days of cultivation in both FLT treatments no significant negative effects to any assessed parameter were found. |
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