Effects of Cylindrospermopsis raciborskii and Aphanizomenon ovalisporum (cyanobacteria) ingestion on Daphnia magna midgut and associated diverticula epithelium.

This article reports a light and electron microscopy investigation of the effects of Cylindrospermopsis raciborskii and Aphanizomenon ovalisporum ingestion on midgut and associated digestive diverticula of Daphnia magna. Additionally, survivorship and growth effects caused by feeding on cyanobacteria were assessed. Three cyanobacteria were used in the experiments: cylindrospermopsin (CYN)-producing C.

Accumulation of paralytic shellfish toxins (PST) from the cyanobacterium Aphanizomenon issatschenkoi by the cladoceran Daphnia magna.

In order to access the effects of Paralytic Shellfish Toxins (PST) in freshwater environment, the accumulation of PST produced by the cyanobacteria Aphanizomenon issatschenkoi in juvenile Daphnia magna was investigated. D. magna was exposed to A.

Toxicity of the cyanobacterium Cylindrospermopsis raciborskii to Daphnia magna.

The effect of two strains of Cylindrospermopsis raciborskii on the survivorship, somatic growth, and detoxification processes of juvenile Daphnia magna were investigated. Both strains of C. raciborskii (and also Ankistrodesmus falcatus, used as the control) were given to newborn D.

First report and toxicological assessment of the cyanobacterium Cylindrospermopsis raciborskii from Portuguese freshwaters.

The freshwater cyanobacterium Cylindrospermopsis raciborskii has become increasingly prevalent in freshwaters worldwide. This species is a concern from a water quality perspective due to its known ability to produce a potent hepatotoxic alkaloid cylindrospermopsin, which has been implicated in outbreaks of human sickness and cattle mortality. C.