Levels of microcystins in Japanese lakes
| Autor: | Shigeyuki Takenaka, Shigeji Kitamori, Yoshito Tanaka, Hiroshi Matsuo, Hiroshi Tokiwa |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
chemistry.chemical_classification
biology Health Toxicology and Mutagenesis Microcystin-LR Microcystin Warm season biology.organism_classification Pollution Lake water chemistry.chemical_compound chemistry Environmental chemistry polycyclic compounds Environmental Chemistry Microcystis aeruginosa Microcystin RR |
| Zdroj: | Toxicological & Environmental Chemistry. 39:21-27 |
| ISSN: | 1029-0486 0277-2248 |
| DOI: | 10.1080/02772249109357897 |
| Popis: | Microcystins LR and RR in two lakes were identified and their concentrations were determined. Water blooms containing Microcystis aeruginosa, M. viridis and M. weisenvergii covered the surface of both lakes. M. aeruginosa was the most prevalent toxic cyanobacterium detected. Microcystin was identified by the mass spectra of the oxidation product, 2‐methyl‐3‐methoxy‐4 phenyl butyric acid. Microcystin RR was detected at a concentration of 8.8 μg/1 of lake A water collected in June, 1992, whereas that of microcystin LR was 1.5 μg/1. Microcystin RR in lake A water was detected during the October (the warm season) but microcystin LR was not detected in the period from July to October. The concentration of microcystin RR is associated with that of chlorophyll‐a in water blooms. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|