We tested acute toxicity in worms Eisenia andrei following OCDE protocols ( ) and bioactivity tests in Artemia salina. The alkaloids fraction. Bioensayo de toxicidad en artemia salina. Cortés Montoya Vanessa Hernández Castañeda Miriam Najera Sánchez Gloria Guadalupe Ramírez Venegas María. Bioensayo de La Toxicidad Del Nitrato de Potasio en Reproductores de Artemia Salina en Condiciones de Laboratorio – Download as Word Doc .doc), PDF.

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Las plantas y sus usos en las Islas de Providencia y Santa Catalina. Differences were considered as significant when p was lower than 0.

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Therefore, besides working on the use of the bioassays described in the present work, we also suggest the use of alternative methodologies in order to explore a wider range of tests for the detection of toxic events. Effects of toxic Alexandrium species on the survival and feeding rates of brine shrimp, Artemia salina. Analytical methods for atomic absorption spectrophotometry.

To the best of our knowledge, this is the first time the cytotoxicity and toxicity of phosphonium-based DESs were studied. Other standardized toxicological assays using more distant taxonomic groups are also available and have been applied extensively Ribo and Kaiser Ribo J. Assuming similar test conditions photoperiod, temperature, salinity and oxygen for all the bioassays performed, among the tested organisms A. The toxicity tests were performed in well polystyrene multiwell plates containing 1 mL of different cell concentrations Table 1.

Further, reduction of A. Related to the filtrate of A. Quality control methods for medicinal plants materials. In vivo drug discovery in the zebrafish.

After that time, amphipods were considered dead when no movements were registered within 60 seconds. Duroia macrophylla Rubiaceae is endemic from the Amazon Rainforest.

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Los toxiicidad activos de D. On the other hand, the filtrate of A. Before being inoculated into the culture plate, the cell was transferred to a sterile culture medium drop and captured again, to eliminate possible contaminants.

Iridoids and iridoid glucosides from fruits of Crescentia cujete. Bioenasyo Health Organization; The highest concentration of the dinoflagellate, cell mL —1caused the inhibition of the embryonic development in all of the sea urchin larvae while from the lowest concentration tested cell mL —1to cell mL —1 no significant differences from the control were detected Fig.

Ads help cover our server costs. Alexandrium minutum Halim is well known for the production of paralytic shellfish poisoning toxins and its presence can affect copepods, shellfish, and other marine organisms Zhenxing et al. Considering these observations, a new range was applied in a definitive test: L y Psidium guineense. International J Pharmacy Pharmaceutical Sciences.

Artemia salina

A, Alexandrium minutum x and Prymnesium parvum y ; B, sea urchin Paracentrotus lividus ; C, amphipod Corophium multisetosum. Toxicity of coastal coccolithophores Prymnesiophyceae, Haptophyta. The bioassay was based on the exposure of the newly-fertilized eggs to different concentrations of cultured and filtered microalgae for 48 hours Table 1.

These effective concentrations are within the range of those calculated by Hansen et al. Regarding the filtrate of A. In the present study, bioassays with three different marine invertebrates with different levels of biological organization were applied as a detection tool to assess the toxic capacity of these marine microalgae species.

The procedure followed in this study to carry out the Paracentrotus lividus embryo-larval bioassay, was taken from the protocol of Garmendia et al. Ecology of Harmful Algae. The toxic effect of A. The result of the filtrate reported tlxicidad the present study should therefore be considered carefully. The experiment was based on the exposure of adult amphipods to different concentrations of A.

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Photobacterium phosphoreum toxicity bioassay. Maximal and also optimal temperature and pH were determined to be 40oC and pH 7. Toxic hazards to man. Due to the high toxicity reported for A.

Artemia salina Research Papers –

Comparative study of the life cycles of Alexandrium tamatum and Alexandrium minutum Gonyaulacales, Dinophyceae in culture. Organophosphates Search for additional papers on this topic.

Cultures were diluted with toxicudad filtered water 0. Embryonic success was estimated by counting the normal pluteus larvae among the first larvae observed. Bioactive furanonaphthoquinones from Crescentia cujete. Moreover, obtaining gametes and in vitro fecundation do not involve difficulties, while the embryonic development is short, thus allowing viable larvae to be obtained in a bioenssyo time Garmendia et al.

Because of these deleterious effects, several methods for determining the toxicity of marine microalgae have been used to date. The bioassays were performed on II-III stage nauplii larvae of Artemia franciscanaon newly-fertilized sea urchin embryos Paracentrotus lividusand on adults of the amphipod Corophium multisetosum. This finding contrasts with those of other authors who have routinely used adult zooplankton organisms Euterpina acutifrons and Acartia grani to evaluate the toxicity of A.

References Publications referenced by this paper. Click here to sign up. Wound- activated chemical defense in unicellular planktonic algae. Seasonal variability in gonad development in the sea urchin Paracentrotus lividus on the Basque coast southeastern Bay of Biscay.

Determination of water and volatile matter.

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