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dc.contributor.author
Brodeur, Celine Marie Julie
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dc.contributor.author
Asorey, Cynthia Melina
dc.contributor.author
Sztrum, Abelardo
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dc.contributor.author
Herkovits, Jorge
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dc.date.available
2024-08-30T11:48:43Z
dc.date.issued
2009-07
dc.identifier.citation
Brodeur, Celine Marie Julie; Asorey, Cynthia Melina; Sztrum, Abelardo; Herkovits, Jorge; Acute and Subchronic Toxicity of Arsenite and Zinc to Tadpoles of Rhinella arenarum Both Alone and in Combination; Taylor & Francis; Journal of Toxicology and Environmental Health-Part A-Current Issues; 72; 14; 7-2009; 884-890
dc.identifier.issn
1528-7394
dc.identifier.uri
http://hdl.handle.net/11336/243332
dc.description.abstract
The current study evaluated acute and subchronic toxicity of arsenite (As3+) and zinc (Zn2+) to stage 25 tadpoles of Rhinella arenarum in both single and joint laboratory exposures. LC50 values obtained for As3+ were elevated and remained within the range of 46 to 50 mg/L of As3+ between 4 and 17 d of exposure. Growth of tadpoles was completely inhibited with 30 mg/L of As3+, demonstrating the presence of ecologically relevant sublethal effects at concentrations lower than those resulting in lethality. With respect to Zn2+, a 96-h LC50 value of 2.49 mg/L was calculated in soft water. Contrary to results obtained for As3+, LC50 values of Zn2+ gradually decreased with increasing exposure duration, from 2.49 mg/L at 96 h to 1.30 mg/L after 21 d. In joint exposures to both metals, the type of interaction observed between As3+ and Zn2+ was concentration dependent. Lethal effects of As3+ were mitigated, unaffected, or potentiated by 0.01, 0.1, and 1?2 mg/L of Zn2+, respectively. However, although 0.01 mg/L of Zn2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.3+) and zinc (Zn2+) to stage 25 tadpoles of Rhinella arenarum in both single and joint laboratory exposures. LC50 values obtained for As3+ were elevated and remained within the range of 46 to 50 mg/L of As3+ between 4 and 17 d of exposure. Growth of tadpoles was completely inhibited with 30 mg/L of As3+, demonstrating the presence of ecologically relevant sublethal effects at concentrations lower than those resulting in lethality. With respect to Zn2+, a 96-h LC50 value of 2.49 mg/L was calculated in soft water. Contrary to results obtained for As3+, LC50 values of Zn2+ gradually decreased with increasing exposure duration, from 2.49 mg/L at 96 h to 1.30 mg/L after 21 d. In joint exposures to both metals, the type of interaction observed between As3+ and Zn2+ was concentration dependent. Lethal effects of As3+ were mitigated, unaffected, or potentiated by 0.01, 0.1, and 1?2 mg/L of Zn2+, respectively. However, although 0.01 mg/L of Zn2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.in both single and joint laboratory exposures. LC50 values obtained for As3+ were elevated and remained within the range of 46 to 50 mg/L of As3+ between 4 and 17 d of exposure. Growth of tadpoles was completely inhibited with 30 mg/L of As3+, demonstrating the presence of ecologically relevant sublethal effects at concentrations lower than those resulting in lethality. With respect to Zn2+, a 96-h LC50 value of 2.49 mg/L was calculated in soft water. Contrary to results obtained for As3+, LC50 values of Zn2+ gradually decreased with increasing exposure duration, from 2.49 mg/L at 96 h to 1.30 mg/L after 21 d. In joint exposures to both metals, the type of interaction observed between As3+ and Zn2+ was concentration dependent. Lethal effects of As3+ were mitigated, unaffected, or potentiated by 0.01, 0.1, and 1?2 mg/L of Zn2+, respectively. However, although 0.01 mg/L of Zn2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.3+ were elevated and remained within the range of 46 to 50 mg/L of As3+ between 4 and 17 d of exposure. Growth of tadpoles was completely inhibited with 30 mg/L of As3+, demonstrating the presence of ecologically relevant sublethal effects at concentrations lower than those resulting in lethality. With respect to Zn2+, a 96-h LC50 value of 2.49 mg/L was calculated in soft water. Contrary to results obtained for As3+, LC50 values of Zn2+ gradually decreased with increasing exposure duration, from 2.49 mg/L at 96 h to 1.30 mg/L after 21 d. In joint exposures to both metals, the type of interaction observed between As3+ and Zn2+ was concentration dependent. Lethal effects of As3+ were mitigated, unaffected, or potentiated by 0.01, 0.1, and 1?2 mg/L of Zn2+, respectively. However, although 0.01 mg/L of Zn2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.3+ between 4 and 17 d of exposure. Growth of tadpoles was completely inhibited with 30 mg/L of As3+, demonstrating the presence of ecologically relevant sublethal effects at concentrations lower than those resulting in lethality. With respect to Zn2+, a 96-h LC50 value of 2.49 mg/L was calculated in soft water. Contrary to results obtained for As3+, LC50 values of Zn2+ gradually decreased with increasing exposure duration, from 2.49 mg/L at 96 h to 1.30 mg/L after 21 d. In joint exposures to both metals, the type of interaction observed between As3+ and Zn2+ was concentration dependent. Lethal effects of As3+ were mitigated, unaffected, or potentiated by 0.01, 0.1, and 1?2 mg/L of Zn2+, respectively. However, although 0.01 mg/L of Zn2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.3+, demonstrating the presence of ecologically relevant sublethal effects at concentrations lower than those resulting in lethality. With respect to Zn2+, a 96-h LC50 value of 2.49 mg/L was calculated in soft water. Contrary to results obtained for As3+, LC50 values of Zn2+ gradually decreased with increasing exposure duration, from 2.49 mg/L at 96 h to 1.30 mg/L after 21 d. In joint exposures to both metals, the type of interaction observed between As3+ and Zn2+ was concentration dependent. Lethal effects of As3+ were mitigated, unaffected, or potentiated by 0.01, 0.1, and 1?2 mg/L of Zn2+, respectively. However, although 0.01 mg/L of Zn2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.2+, a 96-h LC50 value of 2.49 mg/L was calculated in soft water. Contrary to results obtained for As3+, LC50 values of Zn2+ gradually decreased with increasing exposure duration, from 2.49 mg/L at 96 h to 1.30 mg/L after 21 d. In joint exposures to both metals, the type of interaction observed between As3+ and Zn2+ was concentration dependent. Lethal effects of As3+ were mitigated, unaffected, or potentiated by 0.01, 0.1, and 1?2 mg/L of Zn2+, respectively. However, although 0.01 mg/L of Zn2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.3+, LC50 values of Zn2+ gradually decreased with increasing exposure duration, from 2.49 mg/L at 96 h to 1.30 mg/L after 21 d. In joint exposures to both metals, the type of interaction observed between As3+ and Zn2+ was concentration dependent. Lethal effects of As3+ were mitigated, unaffected, or potentiated by 0.01, 0.1, and 1?2 mg/L of Zn2+, respectively. However, although 0.01 mg/L of Zn2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.2+ gradually decreased with increasing exposure duration, from 2.49 mg/L at 96 h to 1.30 mg/L after 21 d. In joint exposures to both metals, the type of interaction observed between As3+ and Zn2+ was concentration dependent. Lethal effects of As3+ were mitigated, unaffected, or potentiated by 0.01, 0.1, and 1?2 mg/L of Zn2+, respectively. However, although 0.01 mg/L of Zn2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.3+ and Zn2+ was concentration dependent. Lethal effects of As3+ were mitigated, unaffected, or potentiated by 0.01, 0.1, and 1?2 mg/L of Zn2+, respectively. However, although 0.01 mg/L of Zn2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.3+ were mitigated, unaffected, or potentiated by 0.01, 0.1, and 1?2 mg/L of Zn2+, respectively. However, although 0.01 mg/L of Zn2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.2+, respectively. However, although 0.01 mg/L of Zn2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.2+ significantly reduced lethality of As3+-exposed tadpoles, the same concentration of Zn2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.2+ did not help to reverse the stunt growth of these animals. Further studies need to examine which are the lowest concentrations As3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.3+ required to reduce growth and whether Zn2+ serves to antagonize growth effects in this range of concentrations.2+ serves to antagonize growth effects in this range of concentrations.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Arsenic
dc.subject
Zinc
dc.subject
antagonisms
dc.subject
synergism
dc.subject.classification
Ciencias Medioambientales
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Acute and Subchronic Toxicity of Arsenite and Zinc to Tadpoles of Rhinella arenarum Both Alone and in Combination
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-08-30T11:27:08Z
dc.journal.volume
72
dc.journal.number
14
dc.journal.pagination
884-890
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Brodeur, Celine Marie Julie. Fundación Pro Salud y Medio Ambiente. Instituto de Ciencias Ambientales y Salud; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Asorey, Cynthia Melina. Fundación Pro Salud y Medio Ambiente. Instituto de Ciencias Ambientales y Salud; Argentina
dc.description.fil
Fil: Sztrum, Abelardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fundación Pro Salud y Medio Ambiente. Instituto de Ciencias Ambientales y Salud; Argentina
dc.description.fil
Fil: Herkovits, Jorge. Fundación Pro Salud y Medio Ambiente. Instituto de Ciencias Ambientales y Salud; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Journal of Toxicology and Environmental Health-Part A-Current Issues
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/15287390902959524
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/15287390902959524
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