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- Title
STRONG PROBABILITY OF LETHAL TOXICITY IN THE BLUE-GREEN ALGA <em>MICROCYSTIS VARIDIS</em> LEMMERMANN.
- Authors
Walanabe, Mariyo F.; Oishi, Shihshi; Watanabe, Yasunori; Watanabe, Masayuki
- Abstract
Lethal toxicity (intraperitoneal, mouse) was examined in relation to species composition of samples containing bloom-forming Microcystis populations from natural waters and correlated with toxicity of laboratory strains of four Microcystis formas and species. Toxicity was not always associated with the presence of M. aeruginosa f. aeruginosa Elenkin. A sample with almost all cells of M. aeurginosa f. aeruginosa showed no toxicity. However samples comprised of a high percentage of M. viridis Lemmermann often showed lethal toxicity. Toxicity tests were done on culture strains M. aeruginosa f. aeruginosa, M. aeruginosa f. flos-aquae Elenkin, M. viridis and M. wesenbergii Komárek. All five cultured strains of M. viridis were found to be toxic, while only one out of nine strains of M. aeruginosa f. aeruginosa was toxic. Six strains of M. wesenbergii showed no toxicity. It is recommended that attention should be paid to the occurances and possibility of toxic blooms of M. viridis from the standpoint of water management and public health.
- Subjects
CYANOBACTERIA; MICROCYSTIS; TOXICITY testing; ALGAL blooms; PROKARYOTES; CHROOCOCCACEAE
- Publication
Journal of Phycology, 1986, Vol 22, Issue 4, p552
- ISSN
0022-3646
- Publication type
Article
- DOI
10.1111/j.1529-8817.1986.tb02502.x