2015
DOI: 10.14295/cs.v6i4.1124
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Abstract: Sourgrass(Digitaria insularis, L. Mez ex Ekman)is a weed that requires high rates of glyphosate ((N-[phosphonomethyl]-glycine) forcontrol, verylittle of the herbicide applied isabsorbed by theleaves. Morphological and histological differences in leaves of glyphosate-resistant and glyphosate-susceptible plantsshould explain the contrast of variance between herbicide susceptibility. Leaves of different growth andphenological stages were collected and submitted to histological andelectron microscopy scanning anal… Show more

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Cited by 27 publications
(25 citation statements)
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“…There was a difference in visual control of 5.31 times (RF) among the biotypes considering I 50 . This RF corroborates 4 those of studies with the same and other species in relation to resistance to glyphosate, such as, for example, Eleusine indica (Lee and Ngim, 2000;Barroso et al, 2015).…”
Section: Biotypessupporting
confidence: 85%
“…There was a difference in visual control of 5.31 times (RF) among the biotypes considering I 50 . This RF corroborates 4 those of studies with the same and other species in relation to resistance to glyphosate, such as, for example, Eleusine indica (Lee and Ngim, 2000;Barroso et al, 2015).…”
Section: Biotypessupporting
confidence: 85%
“…A alteração no local de ação é apontada como mecanismo de resistência de D. insularis ao glyphosate (Galeano et al, 2016). Também foi relatado, por Barroso et al (2015), que mudanças na morfologia e anatomia das folhas podem interferir na absorção do glyphosate e, portanto, na eficácia de controle do capim-amargoso.…”
Section: Figuraunclassified
“…In order to define resistant plants, fresh biomass 21 days after herbicide application was used. Plants with four expanded leaves were sprayed with glyphosate (Roundup Original, 360 gL-1, Monsanto, São José dos Campos, SP, Brazil) (Barroso et al, 2015). It was obtained a resistance factor value of 2.36 compared with the GR50 values of resistant and susceptible biotypes.…”
Section: Plant Material Sampled Areas and Resistancementioning
confidence: 99%
“…Traditionally, anatomical and physiological traits of glyphosate resistance in D. insularis have been identified: in resistant biotypes, significant rhizome development with a thick leaf blade and high stomata index and number per mm 2 were observed (Carvalho et al, 2013;De Mendoça et al, 2014;Barroso et al, 2015). However, behind the phenotypical characters, gene structure rearrangements play essential roles in plant function, including changes in photorespiration and photosynthesis, stress response, anatomical modifications, habitat specialization, adaptation, and domestication (Barbazuk et al, 2008;Edwards and Smith, 2010).…”
Section: Resistance Biology Of D Insularis and Implications Of This mentioning
confidence: 99%
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