ACUTE TOXICITY OF HERBICIDES AND SENSIBILITY OF AQUATIC PLANT Wolffia brasiliensis AS A BIOINDICATOR ORGANISM
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S0100-83582019370100092 http://hdl.handle.net/11449/194880 |
Resumo: | This study aimed to establish the mass cultivation of Wolffia brasiliensis under laboratory conditions, determine the sensitivity of reference substances (potassium dichromate, sodium chloride, and potassium chloride), and estimate the acute toxicity (LC50;7d) for the herbicide glyphosate, diquat, paraquat, imazapyr, 2,4-D, saflufenacil, imazamox, penoxsulam, metsulfuron-methyl, and atrazine. Three media were tested for culture establishment: Hoagland's medium, 5.0 g L-1 NPK fertilizer (20-5-20), a mixture of Oxisol + organic substrate of decaying aquatic plant (2:1; v v(-1)). Sensitivity tests with reference substances and acute toxicity for herbicides were carried out after establishing the cultivation. The species W. brasiliensis presented an excellent sensitivity response to reference substances, with means of LC50;7d of 15.61 +/- 2.13 g L-1, 17.02 +/- 0.50 g L-1, and 52.54 +/- 4.27 mg L-1 for sodium chloride, potassium chloride, and potassium dichromate, respectively. The acute toxicity response indicated that W brasiliensis was extremely sensitive to diquat (LC50;7d = 0.07 mg L-1) and paraquat (LC50;7d < 0.05 mg L-1), sensitive to imaapyr (LC50;7d = 21.10 mg L-1), and little sensitive to the other herbicides. The response capacity for the different groups of herbicides, the standardized response to reference substances, and ease of cultivation in the laboratory indicate the potential for using this aquatic plant in the assessment of herbicide risk in aquatic environments. |
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ACUTE TOXICITY OF HERBICIDES AND SENSIBILITY OF AQUATIC PLANT Wolffia brasiliensis AS A BIOINDICATOR ORGANISMmacrophyteschemicalsecotoxicologyreference substancespesticidesThis study aimed to establish the mass cultivation of Wolffia brasiliensis under laboratory conditions, determine the sensitivity of reference substances (potassium dichromate, sodium chloride, and potassium chloride), and estimate the acute toxicity (LC50;7d) for the herbicide glyphosate, diquat, paraquat, imazapyr, 2,4-D, saflufenacil, imazamox, penoxsulam, metsulfuron-methyl, and atrazine. Three media were tested for culture establishment: Hoagland's medium, 5.0 g L-1 NPK fertilizer (20-5-20), a mixture of Oxisol + organic substrate of decaying aquatic plant (2:1; v v(-1)). Sensitivity tests with reference substances and acute toxicity for herbicides were carried out after establishing the cultivation. The species W. brasiliensis presented an excellent sensitivity response to reference substances, with means of LC50;7d of 15.61 +/- 2.13 g L-1, 17.02 +/- 0.50 g L-1, and 52.54 +/- 4.27 mg L-1 for sodium chloride, potassium chloride, and potassium dichromate, respectively. The acute toxicity response indicated that W brasiliensis was extremely sensitive to diquat (LC50;7d = 0.07 mg L-1) and paraquat (LC50;7d < 0.05 mg L-1), sensitive to imaapyr (LC50;7d = 21.10 mg L-1), and little sensitive to the other herbicides. The response capacity for the different groups of herbicides, the standardized response to reference substances, and ease of cultivation in the laboratory indicate the potential for using this aquatic plant in the assessment of herbicide risk in aquatic environments.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Fundacao Educ Barretos, Barretos, SP, BrazilUniv Estadual Paulista, Jaboticabal, SP, BrazilUniv Estadual Paulista, Jaboticabal, SP, BrazilFAPESP: 2015/11189-2FAPESP: 2015/16735-5Univ Federal VicosaFundacao Educ BarretosUniversidade Estadual Paulista (Unesp)Pereira, P. C.Brunetti, I. A. [UNESP]Castro, K. S.Chiarotti, L. F.Santos, B. E.Moraes, J. C.Cruz, C.2020-12-10T16:57:29Z2020-12-10T16:57:29Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8application/pdfhttp://dx.doi.org/10.1590/S0100-83582019370100092Planta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 8 p., 2019.0100-8358http://hdl.handle.net/11449/19488010.1590/S0100-83582019370100092S0100-83582019000100289WOS:000488983600001S0100-83582019000100289.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPlanta Daninhainfo:eu-repo/semantics/openAccess2023-10-27T06:10:37Zoai:repositorio.unesp.br:11449/194880Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:10:44.945353Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
ACUTE TOXICITY OF HERBICIDES AND SENSIBILITY OF AQUATIC PLANT Wolffia brasiliensis AS A BIOINDICATOR ORGANISM |
title |
ACUTE TOXICITY OF HERBICIDES AND SENSIBILITY OF AQUATIC PLANT Wolffia brasiliensis AS A BIOINDICATOR ORGANISM |
spellingShingle |
ACUTE TOXICITY OF HERBICIDES AND SENSIBILITY OF AQUATIC PLANT Wolffia brasiliensis AS A BIOINDICATOR ORGANISM Pereira, P. C. macrophytes chemicals ecotoxicology reference substances pesticides |
title_short |
ACUTE TOXICITY OF HERBICIDES AND SENSIBILITY OF AQUATIC PLANT Wolffia brasiliensis AS A BIOINDICATOR ORGANISM |
title_full |
ACUTE TOXICITY OF HERBICIDES AND SENSIBILITY OF AQUATIC PLANT Wolffia brasiliensis AS A BIOINDICATOR ORGANISM |
title_fullStr |
ACUTE TOXICITY OF HERBICIDES AND SENSIBILITY OF AQUATIC PLANT Wolffia brasiliensis AS A BIOINDICATOR ORGANISM |
title_full_unstemmed |
ACUTE TOXICITY OF HERBICIDES AND SENSIBILITY OF AQUATIC PLANT Wolffia brasiliensis AS A BIOINDICATOR ORGANISM |
title_sort |
ACUTE TOXICITY OF HERBICIDES AND SENSIBILITY OF AQUATIC PLANT Wolffia brasiliensis AS A BIOINDICATOR ORGANISM |
author |
Pereira, P. C. |
author_facet |
Pereira, P. C. Brunetti, I. A. [UNESP] Castro, K. S. Chiarotti, L. F. Santos, B. E. Moraes, J. C. Cruz, C. |
author_role |
author |
author2 |
Brunetti, I. A. [UNESP] Castro, K. S. Chiarotti, L. F. Santos, B. E. Moraes, J. C. Cruz, C. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Fundacao Educ Barretos Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Pereira, P. C. Brunetti, I. A. [UNESP] Castro, K. S. Chiarotti, L. F. Santos, B. E. Moraes, J. C. Cruz, C. |
dc.subject.por.fl_str_mv |
macrophytes chemicals ecotoxicology reference substances pesticides |
topic |
macrophytes chemicals ecotoxicology reference substances pesticides |
description |
This study aimed to establish the mass cultivation of Wolffia brasiliensis under laboratory conditions, determine the sensitivity of reference substances (potassium dichromate, sodium chloride, and potassium chloride), and estimate the acute toxicity (LC50;7d) for the herbicide glyphosate, diquat, paraquat, imazapyr, 2,4-D, saflufenacil, imazamox, penoxsulam, metsulfuron-methyl, and atrazine. Three media were tested for culture establishment: Hoagland's medium, 5.0 g L-1 NPK fertilizer (20-5-20), a mixture of Oxisol + organic substrate of decaying aquatic plant (2:1; v v(-1)). Sensitivity tests with reference substances and acute toxicity for herbicides were carried out after establishing the cultivation. The species W. brasiliensis presented an excellent sensitivity response to reference substances, with means of LC50;7d of 15.61 +/- 2.13 g L-1, 17.02 +/- 0.50 g L-1, and 52.54 +/- 4.27 mg L-1 for sodium chloride, potassium chloride, and potassium dichromate, respectively. The acute toxicity response indicated that W brasiliensis was extremely sensitive to diquat (LC50;7d = 0.07 mg L-1) and paraquat (LC50;7d < 0.05 mg L-1), sensitive to imaapyr (LC50;7d = 21.10 mg L-1), and little sensitive to the other herbicides. The response capacity for the different groups of herbicides, the standardized response to reference substances, and ease of cultivation in the laboratory indicate the potential for using this aquatic plant in the assessment of herbicide risk in aquatic environments. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 2020-12-10T16:57:29Z 2020-12-10T16:57:29Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S0100-83582019370100092 Planta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 8 p., 2019. 0100-8358 http://hdl.handle.net/11449/194880 10.1590/S0100-83582019370100092 S0100-83582019000100289 WOS:000488983600001 S0100-83582019000100289.pdf |
url |
http://dx.doi.org/10.1590/S0100-83582019370100092 http://hdl.handle.net/11449/194880 |
identifier_str_mv |
Planta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 8 p., 2019. 0100-8358 10.1590/S0100-83582019370100092 S0100-83582019000100289 WOS:000488983600001 S0100-83582019000100289.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Planta Daninha |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
8 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Federal Vicosa |
publisher.none.fl_str_mv |
Univ Federal Vicosa |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128614641696768 |