2004
DOI: 10.1590/s0100-83582004000300015
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Absorção, translocação e metabolismo do glyphosate por plantas tolerantes e suscetíveis a este herbicida

Abstract: RESUMO -O objetivo deste trabalho foi caracterizar a absorção foliar, a translocação e o metabolismo do 14 C-glyphosate pelas plantas daninhas Commelina benghalensis, Ipomoea grandifolia e Amaranthus hybridus. O glyphosate foi aplicado através de quatro gotas de 0,5 µL de uma solução contendo o produto comercial, na dose de campo de 720 g e.a. ha -1 em mistura com 14 C-glyphosate, na face adaxial da segunda folha verdadeira das plantas estudadas. As avaliações foram feitas a 2, 4, 8, 12, 24, 48 e 72 horas após… Show more

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Cited by 79 publications
(77 citation statements)
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“…However, weed tolerance to this compound has been identified in monocot weed Commelina benghalensis, where 41% of the applied glyphosate has been converted to metabolite AMPA at 72 hours after the treatment (Monquero et al, 2004). It is possible that some resistant weed species may have the ability to metabolize glyphosate as a resistance mechanism.…”
Section: Enhanced Metabolismmentioning
confidence: 99%
“…However, weed tolerance to this compound has been identified in monocot weed Commelina benghalensis, where 41% of the applied glyphosate has been converted to metabolite AMPA at 72 hours after the treatment (Monquero et al, 2004). It is possible that some resistant weed species may have the ability to metabolize glyphosate as a resistance mechanism.…”
Section: Enhanced Metabolismmentioning
confidence: 99%
“…After continuous applications of an herbicide with a single action mechanism, there is a natural selection of plants that are poorly affected by its use (Christoffoleti, 2008). Worldwide, many weed species have been described as glyphosate-tolerant, such as Ambrosia artemisiifolia (Kapusta et al, 1994), Sesbania exaltatta (Jordan et al, 1997), Commelina benghalensis (Monquero et al, 2004), Richardia brasiliensis, Borreria latifolia and Tridax procumbens (Galon et al, 2009).…”
Section: Introductionmentioning
confidence: 99%
“…Ipomoea species are among the most glyphosate-tolerant ones (Monquero et al, 2004). Intraspecies differences in glyphosate tolerance may also occur in some species, such as Convolvulus arvensis (Degennaro and Weller, 1984).…”
Section: Introductionmentioning
confidence: 99%
“…Rhizomes increase the ability of weeds, like wandering jew, to persevere in agricultural areas when combined with their underground fruiting bodies (BLANCO, 2010). Moreover, glyphosate-resistant populations of wandering jew have been evolutionarily selected through their differential tolerance to glyphosate (MACIEL et al, 2011) that may be caused by differences in their glyphosate absorption and metabolism rates (MONQUERO et al, 2004).…”
Section: Introductionmentioning
confidence: 99%