2016
DOI: 10.1590/0100-67622016000400010
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MORPHO-ANATOMICAL CHANGES OF PEQUI LEAVES (Caryocar brasiliense Cambess.) EXPOSED TO SIMULATED DRIFT OF GLYPHOSATE

Abstract: -The goal of this research was to examine phytotoxicity and leaf anatomy of pequi plants (Caryocar brasiliense Cambess.) exposed to simulated drift of glyphosate. The experimental design was randomized blocks with nine replications. Each experimental unit was composed by one 18-L pot with one plant. The treatments consisted of different doses of glyphosate sprayed: 0 (control), 50, 100, 250, 500, 1000 and 1500 g ae ha -1 of glyphosate. Phytotoxicity visual ratings were carried out at 7, 14 and 21 days after sp… Show more

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Cited by 8 publications
(12 citation statements)
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“…1a). The symptoms observed were narrowing of the leaf blade and internerval chlorosis in new leaves, similar to those reported by other authors (FRANÇA et al, 2010b;SILVA et al, 2016). Internerval chlorosis and narrowing of the leaf blade can occur due to Mg and Zn deficiencies respectively (BOTT et al, 2008;FRANÇA et al, 2010a).…”
Section: Resultssupporting
confidence: 88%
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“…1a). The symptoms observed were narrowing of the leaf blade and internerval chlorosis in new leaves, similar to those reported by other authors (FRANÇA et al, 2010b;SILVA et al, 2016). Internerval chlorosis and narrowing of the leaf blade can occur due to Mg and Zn deficiencies respectively (BOTT et al, 2008;FRANÇA et al, 2010a).…”
Section: Resultssupporting
confidence: 88%
“…Stimulation of vegetative growth in low doses of toxic substances, known as hormone, was observed for glyphosate (BRITO et al, 2017) characterized by the greater thickness of the spongy parenchyma (SILVA et al, 2016). However, this effect was not observed in the coffee seedlings in any of the absorption routes, regardless of the sublethal dosages applied.…”
Section: Resultsmentioning
confidence: 98%
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“…O conteúdo presente no canal secretor de C. macrophyllum foi descrito por Silva et al (2018), em análise histoquímica, como de coloração "mostarda", que não reagiu para compostos lipídicos, fenólicos, pécticos e proteicos, no entanto, Sousa et al (2007) O acúmulo de substâncias, possivelmente compostos fenólicos, na região próxima à nervura principal, atrelado a uma divisão desordenada das células, que culminaram no aparecimento de estruturas semelhantes a uma lenticela, também é um indicativo da interferência na produção de compostos fenólicos, associada ao glifosato. Silva (2016) apontou como efeitos do glifosato em plantas de Caryocar brasiliense, dentre outras alterações anatômicas foliares, tecidos necróticos e acúmulo decompostos fenólicos, corroborando com as alterações observadas neste trabalho.…”
Section: Discussionunclassified
“…Diversos estudos têm demonstrado a importância da avaliação morfoanatômica de plantas expostas a poluentes, tais como poluição industrial (MARTINS et al, 2008), sensibilidade ao ozônio (BULBOVAS et al, 2008;GRAVANO et al, 2004;PEDROSO et al, 2015), exposição ao arsênio (SILVA, 2008), exposição a chuva ácida e deposição de pó de minério de ferro (NEVES et al, 2009), efeitos do fluoreto em plantas de Hypericum perforatum (FORNASIERO, 2003), gramíneas bioindicadoras da presença de flúor em regiões tropicais (OLIVA et al, 2005) e efeitos deletérios dos agrotóxicos SILVA et al, 2016;OLIVEIRA et al, 2021).…”
Section: Morphoanatomical Analysis In Plants Ofunclassified