Pseudokirchneriella subcapitata

III. End Point test The method for testing the toxicity of a compound (end point test) has been developed for the green microalga Pseudokirchneriella subcapitata (EPA, OECD), but can be extended to a wide range of microalgae. The method is summarized below ... 

The main choice of these functions should be based on data from suitable laboratory experiments. This approach has been recently applied to the mathematical study of the allelopathic competition between Pseudokirchneriella subcapitata and Chlorella vulgaris in an open culture (a chemostat-like device), where the nutrient is a mixture of inorganic phosphates Pi. Here we will illustrate step by step the four mentioned features, observing that each equation of the mathematical model can be actually constructed as a balance equation. 

Ecotoxicity assessment of water samples was carried out, in parallel to chemical analysis, using three standardized bioassays based on the micro-crustacean Daphnia magna, the algae Pseudokirchneriella subcapitata, and the bioluminescent bacteria Vibrio fischeri. 

EC50 (48-h) for Spirostomum ambiguum 5.95 g/L (Nalecz-Jawecki and Sawicki, 1999), Pseudokirchneriella subcapitata 6.625g/L (Hsieh et al, 2006). 

Oncorhynchus mykiss Mytilus edulis Mya arenaria Pseudokirchneriella subcapitata Poedlia reticulata Salmo galrdnerl... 

Gueguen, C., Koukal, B., Dominik, J. and Pardos, M. (2003) Competition between alga (Pseudokirchneriella subcapitata), humic substances and EDTA for Cd and Zn control in the algal assay procedure (AAP) medium, Chemosphere 53 (8), 927-934. 

Vibrio fischeri, Microtox light inhibition test Pseudokirchneriella subcapitata, micro-algal growth inhibition assay Daphnia magna, acute immobilization test Ceriodaphnia dubia, chronic reproduction and survival test Thamnocephalus platyurus, Thamnotoxkit lethality assay. 

ALG Pseudokirchneriella subcapitata (micro-algal growth inhibition assay) DM Daphnia magna acute immobilization test CER Ceriodaphnia dubia chronic reproduction and CES Ceriodaphnia dubia survival test. 

Koukal, B., Gueguen, C., Pardos, M, and Dominik, J. (2003) Influence of humic substances on the toxic effects of cadmium and zinc to the green alga Pseudokirchneriella subcapitata, Chemosphere 53, 953-961. 

Pseudokirchneriella subcapitata -formerly Selenastrum capricomutum-72-h growth inhibition test (Blaise et al., 2000). 

The second study applied the weight-of-evidence approach to assess the quality of 17 sediment stations located in a highly industrialized sector along the St. Lawrence River. Five toxicity assays were conducted and encompassed four taxonomic groups, namely bacteria (V. fischeri and Escherichia coli), microphytes (Pseudokirchneriella subcapitata), amphipods (H. azteca) and chironomids (C. riparius), and considered three exposure phases (z. e., wet sediment, organic extract, and whole sediment). 

This alga, S. capricornutum (Printz), has undergone two recent taxonomical changes. It was first renamed Raphidocelis subcapitata and later became Pseudokirchneriella subcapitata. Following these taxonomical tribulations, the correct appellation is purported to be Pseudokirchneriella subcapitata (Korshikov) Hindak (for explanations see Chapter 3, volume 1 of this book). ... 

Four bioassays a) 5 min acute bacterial test (Vibrio fischeri) b) 11 to 21 d algal test (Pseudokirchneriella subcapitata) c) 48h acute crustacean test (Daphnia magna) d) 96h acute fish test (Pimephales promelas) Municipal and industrial solid waste leachates originating from a sanitary landfill Filtered (glass fiber and 0.45 pm membrane filters for algal test) and unfiltered... 

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