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Morphoanatomical injuries in Pistia stratiotes L. (Araceae) as a result of exposure to clomazone in water

Anais da Academia Brasileira de Ciências, 2020-01, Vol.92 Suppl 1 (suppl 1), p.e20180519-e20180519 [Peer Reviewed Journal]

This work is licensed under a Creative Commons Attribution 4.0 International License. ;ISSN: 0001-3765 ;ISSN: 1678-2690 ;EISSN: 1678-2690 ;DOI: 10.1590/0001-3765202020180519 ;PMID: 32348414

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  • Title:
    Morphoanatomical injuries in Pistia stratiotes L. (Araceae) as a result of exposure to clomazone in water
  • Author: Ribeiro, Victor Hugo Vidal ; Coutinho, Ítalo Antônio Cotta ; Alencar, Brenda Thais Barbalho ; Cabral, Cássia Michelle ; Santos, José Barbosa Dos ; Ferreira, Evander Alves ; Francino, Dayana Maria Teodoro
  • Subjects: aquatic macrophyte ; Araceae - drug effects ; clomazone ; herbicide ; Herbicides - toxicity ; hormesis ; Isoxazoles - toxicity ; leaf anatomy ; MULTIDISCIPLINARY SCIENCES ; Oxazolidinones - toxicity ; Pesticide Residues - toxicity ; water lettuce ; Water Pollutants, Chemical - toxicity
  • Is Part Of: Anais da Academia Brasileira de Ciências, 2020-01, Vol.92 Suppl 1 (suppl 1), p.e20180519-e20180519
  • Description: Contamination of water sources due to herbicide is of great concern. Clomazone is a pesticide with a high contamination potential which could possibility lixiviate to water streams. Changes caused by residual herbicide include flora modifications which are generally detrimental for some species. The lack of morphological studies performed in aquatic plants exposed to herbicide-contaminated environments has encouraged the development of our research. For the first time, we present a study that aimed to evaluate leaf injuries visible to the naked eye as well as microscopical effects which may be caused by clomazone on Pistia stratiotes. Pistia stratiotes was subjected to five concentrations of clomazone. Our analysis showed leaf injuries, especially after 15 days of clomazone application. Hormesis was observed when the water lettuce was subjected to the lower concentrations. Total leaf area showed increase following by reduction while injured until reaching the highest concentration. Although the concentrations of clomazone tested in our study are not lethal to water lettuce, such herbicide have still caused morphoanatomical damages on leaves which advocates for the use of P. stratiotes as a bioindicator of the presence of herbicides such as clomazone in water.
  • Publisher: Brazil: Academia Brasileira de Ciências
  • Language: English;Portuguese
  • Identifier: ISSN: 0001-3765
    ISSN: 1678-2690
    EISSN: 1678-2690
    DOI: 10.1590/0001-3765202020180519
    PMID: 32348414
  • Source: IngentaConnect Free/Open Access Journals
    SciELO
    Geneva Foundation Free Medical Journals at publisher websites
    MEDLINE
    DOAJ Directory of Open Access Journals
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