Growth assays with mixed cultures of cyanobacteria and algae assessed by in vivo fluorescence: One step closer to real ecosystems?
Language English Country England, Great Britain Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
17845814
DOI
10.1016/j.chemosphere.2007.07.073
PII: S0045-6535(07)00976-9
Knihovny.cz E-resources
- MeSH
- Chlorophyll A MeSH
- Chlorophyll analysis MeSH
- Chlorophyta drug effects growth & development MeSH
- Ecosystem MeSH
- Fluorescence MeSH
- Herbicides toxicity MeSH
- Aluminum Hydroxide toxicity MeSH
- Hydrogen Peroxide toxicity MeSH
- Cyanobacteria drug effects growth & development MeSH
- Copper Sulfate toxicity MeSH
- Toxicity Tests methods MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- aluminum oxychloride MeSH Browser
- Chlorophyll A MeSH
- Chlorophyll MeSH
- Herbicides MeSH
- Aluminum Hydroxide MeSH
- Hydrogen Peroxide MeSH
- Copper Sulfate MeSH
A growth toxicity assay with mixed cultures of cyanobacteria and algae using in vivo fluorescence is presented. Test organisms (the green alga Pseudokirchneriella subcapitata and the cyanobacterium Aphanothece clathrata) growing alone and in a mixture were exposed to selected chemicals. P. subcapitata featured a higher sensitivity to toxicants in the presence of A. clathrata compared to the single species assay. On the other hand, growth of a cyanobacterium was not affected by the presence or absence of the green alga. The proposed method seems to be suitable for pre-screening studies of toxicants (algistatic agents, herbicides) applied into the aquatic environment and for the assessment of their impact on natural phytoplankton communities.
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