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

Akbulut, Gülçin Beker; Yiğit, Emel; Bayram, Dilek

doi:10.4172/2161-0525.1000271

Cited by 15 publications

(13 citation statements)

References 63 publications

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“…O AS desempenha papel importante na regulação do crescimento e desenvolvimento das plantas, ainda que os processos bioquímicos que circundam a maioria dessas respostas permaneçam desconhecidos (Rivas-san Vicent & Plasencia, 2011). Entre as transformações fisiológicas e bioquímicas das plantas, em resposta à aplicação de AS, são citados aumentos nos níveis de clorofila (Karlidag et al, 2009), corroborando as observações obtidas nesse trabalho, e aumento da atividade de enzimas do sistema antioxidativo (Akbulut et al, 2015).…”

Section: Resultsunclassified

“…2017 antioxidante por estimular a ação de enzimas como superóxido dismutase, catalase e peroxidase (Sharma & Bhardwaj, 2014). De acordo com Akbulut et al (2015), a aplicação de AS tem a capacidade de reduzir estresses oxidativos gerados pela aplicação de herbicidas. Além disso, esses mesmos autores verificaram que plantas de cevada tratadas com AS, antes de aplicações de paraquat, apresentaram proteção contra os efeitos fitotóxicos devido a alterações na atividade de enzimas antioxidantes, como glicolato oxidase, fosfoglicolato fosfatase e catalase.…”

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Ácido salicílico como atenuador de fitotoxicidade causada pelo flumioxazin na cultura do trigo

Dias¹,

Melo²,

Santos³

et al. 2017

Rev. Ciênc. Agrár.

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PALAVRAS-CHAVE RESUMO:O ácido salicílico (AS) pode ser usado como atenuador de estresses causados por herbicidas em plantas e, assim, viabilizar a utilização de flumioxazin na cultura do trigo. Diante disso, objetivou-se avaliar o efeito do AS como atenuador de fitotoxicidade causada por flumioxazin na cultura do trigo. Realizou-se um experimento em campo, de maio a setembro de 2015, no delineamento em blocos casualizados com quatro repetições. Os tratamentos aplicados foram: controle (sem herbicida, sem AS e capinado); flumioxazin (40 g.ha -1 ); flumioxazin + AS em mistura de calda (40 g.ha -1 + 0,5 mM); flumioxazin + AS em mistura de calda + AS 7 dias após a aplicação (DAA) do herbicida (40 g.ha -1 + 0,5 mM + 0,5 mM); AS (0,5 mM). Foram realizadas avaliações de índice SPAD, fitotoxicidade, massa de mil grãos, peso hectolitro e produtividade. A mistura de AS com flumioxazin aumentou em 7% o índice SPAD aos 21 DAA, reduziu em 30% a fitotoxicidade aos 28 DAA e elevou em 3,43% a produtividade em relação à aplicação isolada de flumioxazin. A aplicação adicional de AS aos 7 DAA reduziu a fitotoxicidade em até 50%, aumentou em até 8,72% o índice SPAD e possibilitou ganhos de 1,49% na produtividade e de 5,46% no peso hectolitro, quando comparado ao herbicida aplicado isoladamente. A aplicação de AS atenuou o estresse causado por flumioxazin no trigo. ABSTRACT: Salicylic acid (SA) may be used as attenuator of stress caused by herbicides

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Section: Resultsunclassified

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Ácido salicílico como atenuador de fitotoxicidade causada pelo flumioxazin na cultura do trigo

Dias¹,

Melo²,

Santos³

et al. 2017

Rev. Ciênc. Agrár.

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“…2, c and g). POD up-regulation after herbicide application has been reported in maize, tobacco and many other crop species [64]. MDA is used as an index of lipid peroxidation.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of quinclorac toxicity and alleviation by salicylic acid in rice seedlings using ground-based visible/near-infrared hyperspectral imaging

et al. 2020

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Background: To investigate potential effects of herbicide phytotoxic on crops, a major challenge is a lack of nondestructive and rapid methods to detect plant growth that could allow characterization of herbicide-resistant plants.In such a case, hyperspectral imaging can quickly obtain the spectrum for each pixel in the image and monitor status of plants harmlessly. Method:Hyperspectral imaging covering the spectral range of 380-1030 nm was investigated to determine the herbicide toxicity in rice cultivars. Two rice cultivars, Xiushui 134 and Zhejing 88, were respectively treated with quinclorac alone and plus salicylic acid (SA) pre-treatment. After ten days of treatments, we collected hyperspectral images and physiological parameters to analyze the differences. The score images obtained were used to explore the differences among samples under diverse treatments by conducting principal component analysis on hyperspectral images. To get useful information from original data, feature extraction was also conducted by principal component analysis. In order to classify samples under diverse treatments, full-spectra-based support vector classification (SVC) models and extracted-feature-based SVC models were established. The prediction maps of samples under different treatments were constructed by applying the SVC models using extracted features on hyperspectral images, which provided direct visual information of rice growth status under herbicide stress. The physiological analysis with the changes of stress-responsive enzymes confirmed the differences of samples under different treatments. Results:The physiological analysis showed that SA alleviated the quinclorac toxicity by stimulating enzymatic activity and reducing the levels of reactive oxygen species. The score images indicated there were spectral differences among the samples under different treatments. Full-spectra-based SVC models and extracted-feature-based SVC models obtained good results for the aboveground parts, with classification accuracy over 80% in training, validation and prediction set. The SVC models for Zhejing 88 presented better results than those for Xiushui 134, revealing the different herbicide tolerance between rice cultivars. © The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article' s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article' Conclusion:We develop a reliable and effective model using hyperspectral imaging technique which enables the evaluation and visualization of herbicide toxicity for rice. The reflectance spectra variations of rice could reveal the stress sta...

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“…3) Salicylic acid (a signal compound in plant response to pathogen infection) is produced by two parallel routes, both of which need intermediates (chorismic acid and Lphenylalanine) from the shikimic acid pathway. It is interesting to note that salicylic acid antagonizes the biological activity of glyphosate (Akbulut, 2014). 4) Naturally, the synthesis a wide variety of pathogenesisrelated proteins that are important for plant resistance depends on the availability of their aromatic amino acid building blocks (Johal and Huber, 2009).…”

Section: Effects On Plant-pathogen Interactionsmentioning

confidence: 99%

On glyphosate

Kőmíves¹,

Schröder²

2016

Ecocycles

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

Cited by 15 publications

References 63 publications

Ácido salicílico como atenuador de fitotoxicidade causada pelo flumioxazin na cultura do trigo

Ácido salicílico como atenuador de fitotoxicidade causada pelo flumioxazin na cultura do trigo

Evaluation of quinclorac toxicity and alleviation by salicylic acid in rice seedlings using ground-based visible/near-infrared hyperspectral imaging

On glyphosate

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