Factors affecting the herbicidal activity of glufosinate-ammonium: Absorption, translocation, and metabolism in barley and green foxtail

Mersey, B. G.; Hall, J. Christopher; Anderson, D. M.; Swanton, Clarence J.

doi:10.1016/0048-3575(90)90112-f

Cited by 68 publications

(101 citation statements)

References 16 publications

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“…These trends are supported by previous research with glufosinate that documented foliar absorption of <20% in other crop and weed species (Steckel et al, 1997;Skora Neto et al, 2000;Hoss et al, 2003;Everman et al, 2009). In some weed species, the extent of sensitivity to glufosinate has been attributed to differences in foliar absorption of glufosinate, with the most sensitive species exhibiting greater foliar absorption rates of glufosinate (Mersey et al, 1990;Steckel et al, 1997;Maschhoff et al, 2000;Everman et al, 2009). to 83% in oilseed rape (Brassica napus L.) (Beriault et al, 1999;Pline et al, 1999;Ruhland et al, 2004;Everman et al, 2009).…”

Section: Discussionsupporting

confidence: 76%

“…As shown in previous research evaluating whole-plant tolerance (Nolte et al, 2004), reduced sensitivity to glufosinate is positively correlated to gdhA expression. Differential absorption and translocation of glufosinate from foliar applications in various plant species has been reported as the physiological basis for plant selectivity (Mersey et al, 1990;Ridley and McNally, 1985;Steckel et al, 1997;Maschhoff et al, 2000). Differential absorption and translocation of glufosinate from foliar applications in various plant species has been reported as the physiological basis for plant selectivity (Mersey et al, 1990;Ridley and McNally, 1985;Steckel et al, 1997;Maschhoff et al, 2000).…”

mentioning

confidence: 99%

“…Preliminary testing and previous research has shown that this method can effectively remove over 95% of unabsorbed 14 C-glufosinate from leaf tissue (Mersey et al, 1990). Plants were divided into four parts: treated leaf, shoot and leaves above the treated leaf, below the treated leaf, and roots.…”

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confidence: 99%

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Glufosinate Absorption, Translocation, and Metabolic Fingerprint Effects in gdhA‐Transformed Tobacco

et al. 2017

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Tobacco (Nicotiana tabacum L.) expressing a modified Escherichia coli gdhA gene encoding NADPH‐dependent glutamate dehydrogenase (GDH) was resistant to the herbicide glufosinate. Differential plant sensitivity to glufosinate may result from changes in foliar absorption, translocation, plant metabolism, or metabolism around the blocked pathway(s). The objectives here were to determine if foliar absorption, translocation, or metabolism of glufosinate or metabolism around the blocked pathway(s) contribute to the resistance to glufosinate in gdhA‐transformed tobacco and to characterize changes in the metabolic profile in response to glufosinate as a result of transformation with gdhA. Foliar uptake and translocation of glufosinate was largely independent of the gdhA transgene or its expression. Thus, gdhA does not confer resistance to the transformed plants by altering the uptake or movement of glufosinate within tobacco plants. Using direct‐injection electrospray ionization and quadrupole time‐of‐flight mass spectrometry, the metabolic profiles of the two tobacco genotypes were different in response to glufosinate treatment, as determined by principal component analysis. The metabolic perturbation induced by glufosinate was lower in gdhA line 9 than gusA line 1, as evidenced by the reduced number of altered peaks recorded in leaves. Thus, gdhA‐transformed tobacco plants with low and high expression of GDH activity showed more stability of metabolism following the application of glufosinate than control plants. The predicted identity of ions suggested metabolic perturbations were lessened by gdhA in nitrogen assimilation, photorespiration, amino acid metabolism, nucleic acid metabolism, and cell signaling. Thus, use of the modified E. coli gdhA gene in transgenic plants can provide an additional mechanism for resistance to glufosinate.

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Section: Discussionsupporting

confidence: 76%

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confidence: 99%

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Glufosinate Absorption, Translocation, and Metabolic Fingerprint Effects in gdhA‐Transformed Tobacco

et al. 2017

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“…Glufosinate inhibits glutamine synthetase in plants and blocks the synthesis of glutamine from glutamate and ammonia, resulting in rapid accumulation of toxic levels of ammonia within the cells (Mersey et al, 1990). It has been reported to control silverleaf nightshade effectively in glufosinate-resistant cotton (McCormick, 2005).…”

Section: Introductionmentioning

confidence: 99%

CHEMICAL OPTIONS FOR THE CONTROL OF SILVERLEAF NIGHTSHADE (Solanum elaeagnifolium)

Gitsopoulos¹,

Damalas

Georgoulas³

2017

Planta daninha

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Silverleaf nightshade is a difficult-to-control perennial weed. Field experiments were conducted in northern Greece to evaluate the control of silverleaf nightshade with POST applications of glufosinate (1,500 g a.i. ha-1), glyphosate (3,600 g a.i. ha-1), tembotrione (148.5 g a.i. ha-1), and a mixture of tembotrione plus bentazon (148.5 plus 1,440 g a.i. ha-1) at an early vegetative stage (plant height 10-15 cm) and at the beginning of flowering (plant height 30-50 cm). Glufosinate provided > 95% control of silverleaf nightshade from 7 to 39 days after treatment (DAT), regardless of the vegetative stage at herbicide application. Similarly, glyphosate provided up to 90% control around 39 DAT at either growth stage applied, exhibiting gradually increasing efficacy. Tembotrione alone controlled silverleaf nightshade 85% when applied at the early vegetative stage and 48% when applied at the beginning of flowering. The mixture of tembotrione plus bentazon applied at the beginning of flowering exhibited 74% control at 21 DAT; however, the control was decreased to 41% at 35 DAT. When the mixture was applied at the early vegetative stage, S. elaeagnifolium control was 61% at 23 DAT, which was decreased to 27% at 39 DAT. Glufosinate and glyphosate were found to be reliable options for control of silverleaf nightshade when applied at either weed growth stage; tembotrione could be also another reliable option, however, when applied only at an early vegetative stage. The results have significant implications for developing appropriate management practices for silverleaf nightshade, taking into account chemical options for preventing the evolution of herbicide resistance.

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“…Causes may be explained by different factors. Species that are more sensitive to glufosinate absorb and translocate the herbicide more than the less sensitive ones (Pline et al, 1999;Skora-Neto et al, 2000), even if glufosinate ammonium is a contact product, with low translocation; some species present metabolic degradation, reducing sensitivity to glufosinate (Mersey et al, 1990).…”

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Sensitivity of Morningglory Plants and Their Progenies to Glufosinate Ammonium

et al. 2017

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The sensitivity of weed species to herbicides is variable, and the behavior can be repeated or not in the next generation. The objective of this study was to evaluate the response of morningglory plants to different doses of glufosinate ammonium and the sensitivity of plant populations and their progenies to the herbicide. Three studies were conducted, all in a greenhouse and repeated in two periods. In the first study, two experiments were conducted to examine the dose-response curve, and the treatments were seven different doses of the herbicide glufosinate ammonium (0, 50, 100, 200, 400, 800, and 1,600 g a.i. ha-1), with four replications each. In the second study, which examined the range in sensitivity of morningglory to glufosinate ammonium, 44 plants were sprayed with a dose of 200 g a.i. ha-1 of the herbicide. Finally, in the third study, the range in sensitivity of morningglory progenies to glufosinate ammonium was investigated; in this experiment, the progenies of seven of the previous plants were sprayed with 200 g a.i. ha-1 of herbicide. The ammonium contents in the tissues were measured, and percent injury were visually assessed. Ammonium content in morningglory leaves was increased more than seven times by glufosinate application and the maximum ammonium content was observed for the highest herbicide dose. Variability existed in the ammonium content among the individuals of the morningglory population; however, the behavior was not replicated in the same way in progenies. Plants survival after herbicide application allows the production of progenies with wide variability in their sensitivity to the product, regardless of the behavior verified in progenitor plants.

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Factors affecting the herbicidal activity of glufosinate-ammonium: Absorption, translocation, and metabolism in barley and green foxtail

Cited by 68 publications

References 16 publications

Glufosinate Absorption, Translocation, and Metabolic Fingerprint Effects in gdhA‐Transformed Tobacco

Glufosinate Absorption, Translocation, and Metabolic Fingerprint Effects in gdhA‐Transformed Tobacco

CHEMICAL OPTIONS FOR THE CONTROL OF SILVERLEAF NIGHTSHADE (Solanum elaeagnifolium)

Sensitivity of Morningglory Plants and Their Progenies to Glufosinate Ammonium

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