Is a Plasmid(s) Involved in the Toxicity of Microcystis Aeruginosa?

摘要: Toxicity of Microcystis aeruginosa has been observed in various impoundments South Africa. The symptoms toxicity (i. e. swollen livers and short survival times) as well the polypeptide nature toxin are similar to those reported elsewhere. In nature, level, presence/absence toxicity, is highly variable. Plasmids have demonstrated a number blue-green algal species. origin M. yet poorly understood. known be involved production certain bacteria, therefore possibility plasmid involvement under investigation. Laboratory cultures toxic strain (WR 70) were supplemented by concentrations agents either eliminate plasmids (e. g. acridine orange) or select for plasmid-free cells sodium dodecyl sulphate) bacteria. was monitored intraperitoneal injection disrupted into mice. It found that became non-toxic after growth suitable orange, streptomycin, sulphate chloramphenicol. These results indicate 70).