Glyphosate spray drift in Coffea arabica – Sensitivity of coffee plants and possible use of shikimic acid as a biomarker for glyphosate exposure

Schrübbers, Lars; Valverde, Bernal E.; Sørensen, Jens Christian; Cedergreen, Nina

doi:10.1016/j.pestbp.2014.08.003

Cited by 37 publications

(22 citation statements)

References 45 publications

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“…Reversible and irreversible changes in plant metabolism can be used as bioindicators for the action of xenobiotics (Boutin et al, 2014). Some of the biomarkers used in biomonitoring are the changes in the structure of nucleic acids (Wang et al, 2016), chlorophyll a fluorescence, gas exchange (Duke et al, 2003;MacFarlane, 2003), chloroplastid pigment content (Prasad et al, 2015), metabolites, proteins (Schrübbers et al, 2014;Dayan et al, 2015;Hattab et al, 2016), and the occurrence of chlorosis and necrosis in leaves (De-Temmerman et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Pouteria torta: a native species of the Brazilian Cerrado as a bioindicator of glyphosate action

et al. 2017

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In Brazil, the expansion of agricultural activity and the associated indiscriminate use of herbicides such as glyphosate is directly related to the loss of biodiversity in the Cerrado. The identification of plant species as bioindicators of herbicide action, especially species native to the area, can help in monitoring the impacts of xenobiotics in the remaining Cerrado. Thus, this study was designed to evaluate the possible use of the native Cerrado species Pouteria torta as a bioindicator of glyphosate action via changes in physiological performance. At 16 months after sowing, the effect of glyphosate was evaluated by applying the following doses: 0 (control), 25, 50, 100, 200, 400, 800, and 1200 g a.e. ha -1 . In response to glyphosate, P. torta exhibited reductions in photosynthesis and chloroplastid pigment content, as well as accumulation of shikimic acid and the occurrence of chlorosis and necrosis. These changes demonstrate the high sensitivity of P. torta to glyphosate and its potential for use as a bioindicator of this herbicide.Keywords: phytotoxicity, photosynthetic processes, biomarker, guapeva, herbicide. Pouteria torta: espécie native do Cerrado Brasileiro como bioindicadora da ação do glyphosate ResumoNo Brasil, a expansão da atividade agrícola, aliada a utilização indiscriminada de herbicidas como o glyphosate, possui relação direta com a perda da biodiversidade no Cerrado. A identificação de espécies vegetais bioindicadoras da ação de herbicidas, particularmente as nativas do Cerrado, pode auxiliar em processos de monitoramento dos impactos desse xenobiótico nas remanescentes do Cerrado. Assim, este estudo foi projetado para avaliar o possível uso de Pouteria torta, espécie nativa do cerrado, como bioindicadora da ação do glyphosate via mudanças na sua performance fisiológica. Após 16 meses de semeadura, o efeito do glyphosate foi avaliado quando aplicadas as seguintes doses: 0 (controle), 25, 50, 100, 200, 400, 800 e 1200 g e. a. ha -1 . Em reposta ao glyphosate, as plantas de P. torta apresentaram redução na sua performance do processo fotossintético e no conteúdo de pigmentos cloroplastídicos, além do acúmulo de ácido chiquímico e da ocorrência de cloroses e necroses. Essas alterações demonstram a alta sensibilidade de P. torta ao glyphosate, o que potencializa a sua utilização como bioindicadora da ação desse herbicida.

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Section: Introductionmentioning

confidence: 99%

Pouteria torta: a native species of the Brazilian Cerrado as a bioindicator of glyphosate action

et al. 2017

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“…Weed management in coffee plantations are performed using directed spraying on the plant rows, however, application of non-selective herbicides with inadequate conditions of spraying pressure, boom height, operation speed and wind at the spraying time can cause problems related to the drift, causing visual phytotoxicity and prolonged and irreversible physiological damage to the coffee crop growth (FRANÇA et al, 2010a;FRANÇA et al, 2010b;CARVALHO et al, 2013;CARVALHO et al, 2014;SCHRÜBBERS et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

Selectivity of Saflufenacil Applied Singly and in Combination With Glyphosate on Coffee and Citrus Crops

et al. 2016

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-Saflufenacil is absorbed by the plant leaves and roots, thus the residual permanence of this herbicide can cause losses to the crop plants. Therefore, the objective of this study was to evaluate the selectivity of the saflufenacil herbicide, applied singly and in combination with glyphosate, on coffee and citrus plants grown in a sandy soil. Two experiments were implemented and conducted in completely randomized design with four replications. The chemical treatments consisted of three sequential applications, with directed spraying of saflufenacil at rates of 0.035, 0.07 and 0.105 kg a.i. ha -1 , glyphosate at rate of 2.160 kg a.e. ha -1 , the two herbicides combined at the same rates, and a control without chemical treatment. The saflufenacil applied singly and in combination with glyphosate was selective for coffee and citrus plants, which presented no visual toxicity symptoms. The sequential application of saflufenacil, singly and in combination with glyphosate did not affect the growth of coffee and citrus plants. The saflufenacil has potential for use, in combination with glyphosate on controlling many weed species in coffee and citrus areas without any interference on the development of these species.Keywords: Development. Directed spraying. Herbicide. Phytotoxicity. SELETIVIDADE DO SAFLUFENACIL ISOLADO E EM ASSOCIAÇÃO COM GLYPHOSATE EM CULTURAS DE CAFÉ E CITROSRESUMO -O saflufenacil é absorvido pelas folhas e raízes das plantas, por isso a permanência residual deste herbicida pode provocar prejuízos para as plantas cultivadas. Portanto, este trabalho teve como objetivo avaliar a seletividade do herbicida saflufenacil aplicado isolado e em associação com glyphosate, em plantas de café e citros cultivadas em solo arenoso. Foram instalados e conduzidos dois experimentos no delineamento inteiramente casualizado, com quatro repetições. Os tratamentos químicos consistiram de três aplicações sequenciais, com jato dirigido de saflufenacil nas doses de 0,035, 0,07 e 0,105 kg i.a. ha -1 , de glyphosate na dose de 2,160 kg e.a. ha -1 , e da associação dos dois herbicidas nas mesmas doses, além de uma testemunha sem tratamento químico. O saflufenacil aplicado isolado e em associação com glyphosate foi seletivo para plantas de café e citros, não apresentando nenhum sintoma visual de intoxicação nas plantas. A pulverização sequencial de saflufenacil isolada e em associação com glyphosate não afetou o crescimento das plantas de café e citros. O saflufenacil tem um potencial de uso em associação com glyphosate para fornecer controle de muitas espécies de plantas daninhas em áreas de café e citros sem nenhuma interferência no desenvolvimento destas espécies. Palavras-chave:Desenvolvimento. Jato dirigido. Herbicida. Fitointoxicação.

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“…Adverse effects after coffee exposure to glyphosate have been shown both as damage [45,46] and as a reduction in plant nutrient concentration [47] after a glyphosate spray drift simulation [48].…”

Section: Discussionmentioning

confidence: 99%

Investigation of the Effects of Salicylic Acid on Some Biochemical Parameters in Zea mays to Glyphosate Herbicide

Akbulut¹,

Yiğit²,

Bayram³

2014

J Environ Anal Toxicol

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Glyphosate spray drift in Coffea arabica – Sensitivity of coffee plants and possible use of shikimic acid as a biomarker for glyphosate exposure

Cited by 37 publications

References 45 publications

Pouteria torta: a native species of the Brazilian Cerrado as a bioindicator of glyphosate action

Pouteria torta: a native species of the Brazilian Cerrado as a bioindicator of glyphosate action

Selectivity of Saflufenacil Applied Singly and in Combination With Glyphosate on Coffee and Citrus Crops

Investigation of the Effects of Salicylic Acid on Some Biochemical Parameters in Zea mays to Glyphosate Herbicide

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