Impact of a toxic and a non-toxic strain of Microcystis aeruginosa on the crayfish Procambarus clarkii

Vasconcelos, Vı́tor; Oliveira, S.; Oliva-Teles, Luís

doi:10.1016/s0041-0101(01)00105-2

Cited by 101 publications

(64 citation statements)

References 28 publications

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“…In a laboratory experiment, the crayfish Procambarus clarkii were fed with toxic Microcystis aeruginosa (ca. 2.3 mg MC g ÿ1 DW) for 23 days, and percentages of MC in the hepatopancreas and intestine were 38% and 53%, respectively (Vasconcelos et al, 2001). …”

Section: Discussionmentioning

confidence: 98%

Tissue distributions and seasonal dynamics of the hepatotoxic microcystins-LR and -RR in a freshwater snail (Bellamya aeruginosa) from a large shallow, eutrophic lake of the subtropical China

Chen

Xie

Li-wei

et al. 2005

Environmental Pollution

120

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Section: Discussionmentioning

confidence: 98%

Tissue distributions and seasonal dynamics of the hepatotoxic microcystins-LR and -RR in a freshwater snail (Bellamya aeruginosa) from a large shallow, eutrophic lake of the subtropical China

Chen

Xie

Li-wei

et al. 2005

Environmental Pollution

120

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“…It is a native species from South America and used in many countries as a food resource (Perry and LaCaze, 1969;Vasconcelos et al, 2001). P. clarkii was transplanted into Japan in the early 20th century; from Japan, it was introduced into China in the late 1930s, and now is widely dispersed in natural waters of China (Guo and Zhu, 1997) perhaps due to its high migratory ability, resistance to environmental changes and high ability to tolerate low water quality (Johnson and Avault, 1982;Vasconcelos et al, 2001). P. clarkii is also popularly used as food for humans in China.…”

Section: Methodsmentioning

confidence: 99%

“…In laboratory, 12 signal crayfish (Pacifastacus leniusculus) (collected from a crayfish farm in southern Sweden) were fed with a toxic strain of Planktothrix agardhii with a MC content of 3.6 mg g K1 DW, and MCs were detected in the hepatopancreas of six of 12 of the animals, but the amounts of MCs accumulated in the hepatopancreas could not be quantified accurately because of interference from other components (Liras et al, 1998). In the laboratory, the crayfish Procambarus clarkii were fed with toxic Microcystis aeruginosa strain containing a MC content of 2.3 mg g K1 DW, and their whole body accumulated up to 2.9 mg MC g K1 DW (determined by ELISA method) at the end of an uptake period (2 weeks) with 53, 38 and less than 0.1% of the MC in the intestine, hepatopancreas and muscle (edible part), respectively (Vasconcelos et al, 2001).…”

Section: K1mentioning

confidence: 99%

Tissue distributions and seasonal dynamics of the hepatotoxic microcystins-LR and -RR in two freshwater shrimps, Palaemon modestus and Macrobrachium nipponensis, from a large shallow, eutrophic lake of the subtropical China

Chen

Xie

2005

Toxicon

193

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“…CE 50 (48h) in Reinikainen et al (2002) & Xie (2008) was calculated from the mean number of newborns produced; biomass of strain PCC7820 was calculated as in DeMott et al (1991). CL 50 (24h) in Vasconcelos et al (2001) (24-48h) in Kiviranta & Abdel-Hameed (1994) were estimated for second and fourth instar larvae of aedes aegyptii.…”

Section: Notes: CLmentioning

confidence: 99%

Bioacumulação De Cianotoxinas E Seus Efeitos Em Organismos Aquáticos

Ferrão-Filho

2009

Oecol. Austr.

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rESUMOAs cianobactérias são procariotos fotossintéticos que têm ampla distribuição geográfica e habitam os mais diferentes ecossistemas. Como característica peculiar, produzem alguns metabólitos secundários denominados de cianotoxinas. as cianotoxinas dividem-se em três classes principais: as hepatotoxinas, as dermatotoxinas e as neurotoxinas. Muitos estudos têm demonstrado que as cianobactérias e suas toxinas exercem efeitos deletérios para vários organismos aquáticos, como efeitos agudos (i.e. redução na sobrevivência e inibição da taxa de ingestão, paralisia) e crônicos (i.e. redução no crescimento e fecundidade). efeitos bioquímicos, como alteração na atividade de enzimas fosfatases, GsT, aChe, e proteases, além de efeitos comportamentais também têm sido descritos. Como o alvo principal destas toxinas parece ser o zooplâncton herbívoro, muitas pesquisas têm enfocado este elo como principal rota das cianotoxinas, mostrando inclusive o seu potencial de bioacumulação na cadeia alimentar. No entanto, a grande variabilidade encontrada nos resultados dos estudos de bioacumulação tem levado à conclusões equivocadas. apesar da inequívoca evidência de efeitos deletérios das cianobactérias e suas toxinas, a resistência de algumas espécies de zooplâncton e a ausência de efeito de microcistina sobre Daphnia em alguns estudos têm levado ao questionamento do papel desta toxina como mecanismo químico de defesa contra a herbivoria do zooplâncton. Deste modo, mais estudos são necessários para esclarecer o papel das cianotoxinas sobre organismos aquáticos. este trabalho tem como objetivo fazer uma ampla revisão sobre os estudos de bioacumulação e efeitos de cianotoxinas em organismos aquáticos, especialmente de água doce. Palavras-chave: Cianobactérias, cianotoxinas, bioacumulação, detoxificação, organismos aquáticos. ABSTrACT BIOACCUMULATION Of CYANOTOXINS AND THEIr EffECTS ON AqUATIC OrgANISMS.Cyanobacteria are photosynthetic procariotes with wide geographic distribution, occurring in many different ecossystems. They produce secondary metabolites named cyanotoxins, which can be classified in three main types: hepatotoxins, dermatotoxins and neurotoxins. Many studies showed the effects of cynobacteria and their toxins over aquatic organisms, including acute effects (reduction in survivorship, feeding inhibition, paralysis) and chronic effects (e.g. reduction in growth and fecundity). some studies also reported biochemical alterations, (e.g. on the activity of phosphatases, GsT, aChe, and proteases) and behavioral alterations. The main target of these toxins seems to be the herbivorous zooplancton, thus research efforts have foccused on this link as the main bioaccumulators of cyanotoxins, showing indeed its potential for bioaccumulation in the food chain. however, the large variability found in results of many studies has lead to equivocal conclusions. although there is unequivocal evidence of deleterious effects of cyanobacteria and their toxins, the resistance of some zooplâncton species and the absence of effect of microc...

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Impact of a toxic and a non-toxic strain of Microcystis aeruginosa on the crayfish Procambarus clarkii

Cited by 101 publications

References 28 publications

Tissue distributions and seasonal dynamics of the hepatotoxic microcystins-LR and -RR in a freshwater snail (Bellamya aeruginosa) from a large shallow, eutrophic lake of the subtropical China

Tissue distributions and seasonal dynamics of the hepatotoxic microcystins-LR and -RR in a freshwater snail (Bellamya aeruginosa) from a large shallow, eutrophic lake of the subtropical China

Tissue distributions and seasonal dynamics of the hepatotoxic microcystins-LR and -RR in two freshwater shrimps, Palaemon modestus and Macrobrachium nipponensis, from a large shallow, eutrophic lake of the subtropical China

Bioacumulação De Cianotoxinas E Seus Efeitos Em Organismos Aquáticos

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