Antioxidant activity of rice plants sprayed with herbicides

Nohatto, Marcos André; Agostinetto, Dirceu; Langaro, Ana Cláudia; Oliveira, C.; Ruchel, Q.

doi:10.1590/1983-40632016v4638011

Cited by 12 publications

(11 citation statements)

References 24 publications

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“…[18] showed that penoxsulam induced DNA damage to the Procambarus clarkii. Penoxsulam also induced oxidative stress in Oryza sativa [19] and Oreochromis niloticus [20]. Penoxsulam exposure in the A. cepa might result in generation of ROS which could decrease root growth and MI and also increase CAs and DNA damage.…”

Section: Resultsmentioning

confidence: 99%

Cytotoxicity and Genotoxicity in Allium cepa L. Root Meristem Cells Exposed to the Herbicide Penoxsulam

Liman

Özkan

2019

Celal Bayar Üniversitesi Fen Bilimleri Dergisi

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Penoxsulam is a new sulfonamide herbicide used on rice crops for annual grasses, broadleaf weeds, and sedges control, either grown through transplanting or direct dry or direct seeding methods of planting. In this study, Allium cepa ana-telophase and comet assay were used to examine the cyto-genotoxic effects of herbicide penoxsulam on A. cepa roots. A. cepa bulbs were exposed to ½xEC50 (12.5 µg/L), EC50 (25 µg/L) and 2xEC50 (50 µg/L) concentrations of penoxsulam for 24, 48, 72 and 96 h. Distilled water and 10 ppm of methyl methanesulfonate (MMS) were used as negative and positive control groups, respectively. Penoxsulam showed a cytotoxic effect by reducing root growth and mitotic index (MI), a genotoxic effect because it statistically increased chromosome aberrations (CAs, anaphase bridge, chromosomal laggards, polyploidy, disturbed ana-telophase and stickiness) and DNA damage as compared to control. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was also used for quantitative analysis of penoxsulam in A. cepa root meristem cells. Further molecular toxicological evaluations associated in the cyto-genotoxicity of penoxsulam on plants are needed to confirm these results.

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Section: Resultsmentioning

confidence: 99%

Cytotoxicity and Genotoxicity in Allium cepa L. Root Meristem Cells Exposed to the Herbicide Penoxsulam

Liman

Özkan

2019

Celal Bayar Üniversitesi Fen Bilimleri Dergisi

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“…At 24 hours after bentazon application (Nohatto et al 2016) and 96 hours after glyphosate application (Moldes et al 2008) vegetal material was collected for quantification of the activity of oxidative stress enzymes, dismutase (SOD), catalase (CAT) and peroxidase (POX). Approximately 1 g of vegetal material (fully expanded leaves from the upper third of the plant) was collected and packed in aluminum foil envelopes, quickly frozen with liquid nitrogen, and stored at -20°C until the time of analysis.…”

Section: Methodsmentioning

confidence: 99%

Control of Ipomoea grandifolia and antioxidant enzyme activity with bentazon and glyphosate at times and soil water conditions

Salomão¹,

Trezzi²,

Pagnoncelli³

et al. 2021

Commun. Plant. Sci.

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Weed management with herbicides requires favorable environmental conditions, that maximize efficiency, such as soil humidity and timing of application. The aim of this study was to assess the effect of the application timing of bentazon and glyphosate herbicides on the control and activity of antioxidant enzymes in Ipomoea grandifolia, under different conditions of soil water availability. Two experiments, one for each herbicide (bentazon and glyphosate), were conducted in a factorial design with four replicates. The first factor was the two rates of each herbicide (504 and 720 g i.a. ha -1 of bentazon and 651 and 911.4 g i.a. ha -1 of glyphosate). The second factor was the six application times (1 am; 5 am; 9 am; 1 pm; 5 pm and 9 pm). The third factor, soil water content (100% and 50% of field capacity). Plus, two controls without herbicide application. At 21 days after application (DAA) of bentazon and 28 DAA of glyphosate, the fresh mass of the aboveground plants was measured. In addition, the activities of the enzymes superoxide dismutase (SOD), catalase (CAT) and peroxidase (POX) were determined. For plants under water restriction, an increase of approximately 20% in fresh mass was observed compared in plants without water restriction, indicating lower control efficiency under water stress condition. For bentazon, at 1 pm has been observed the lowest herbicide efficiency, the other times were the most efficient, and did not differ. For glyphosate, the application at 9 am was the most efficient, while at 1 am provided the worst control efficiency. Higher CAT and SOD activities after bentazon application were observed at 1 pm. Among the three enzymes evaluated, SOD presented the highest activity after glyphosate application. Generally, the times of the day with the highest peak of enzymatic activity were distinct between with and without water restriction. Highlighted Conclusions1. Water restriction reduces the efficiency of bentazon and glyphosate. 2. Better efficiency for bentazon was observed at 1 am, 5 am, 9 am, 5 pm and 9 pm. 3. Better efficiency for glyphosate was observed at 9 am.

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“…The application of doses of 0.11, 0.022, 03.03 and 0.044 micrograms of herbicides reduced 13, 24, 35 and 46 percent activity of polyphenol oxidase activity of wheat, respectively (Figure 9). In a test, the effect of Bentazone (photosynthesis inhibitor in photocisteemic 2), Penoxsulam (acetylacetate synthesis inhibitor) and Haloxyfopbutyl (acetyl coenzyme carboxylase inhibitor inhibitor) on rice plant, it was determined that the use of bentazone and pinocylamreduced catalase activity, increased H 2 O 2 levels and increased lipid oxidation (Nohatto et al, 2016). In a trial on the effect of Bentazone and Penoxsulam herbicides on rice plant, the use of herbicides reduced the activity of catalase activity, based on which researchers have suggested these herbicides as inhibiting the enzyme activity (Abedi and Pakniyat, 2010).…”

Section: Activity Of Antioxidant Enzymesmentioning

confidence: 99%

Study of Changes in Activity of Wheat Antioxidant Enzymes under Stress Residue of Imazethapyr Herbicide

Fakhari

Ahmad

Alebrahim

et al. 2020

Int. J. Adv. Biol. Biomed. Res.

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In order to investigate physiological and biochemical changes of wheat under stress residue of Imazethapyr herbicide (Imazethapyr), an experiment was conducted in a completely randomized design with four replications in greenhouse conditions at university of Mohaghegh Ardebili. The treatments consisted of five dose levels of herbicide Imazethapyr (0, 0.011, 0.022, 0.033 and 0.044 micrograms of herbicide) per kilogram of soil. The analysis of variance showed that the content of the main and auxiliary pigments of leaf, proline, sugar content, protein, activity of catalase enzymes, peroxidase, polyphenol oxidase, root and shoot dry weight were significantly affected by herbicide. The results showed the Imazethapyr herbicide stopped the production of valine leucine and isoleucine amino acids. As a result, the rapid reduction in the volume of these amino acids led to a reduction in protein synthesis in wheat plant. Therefore, the application of doses of 0.011, 0.022, 0.033 and 0.044 micrograms of herbicides decreased 14, 26, 44 and 47 percent of leaf protein content, respectively, compared with control treatment. Further, theapplication of these doses resulted in the reduction of 2.8, 5, 27 and 64% of activity of catalase enzyme, 3.5, 39, 49 and 52% peroxidase enzyme activity and 13, 24, 35 and 46% activity of polyphenol oxidase enzyme, compared with control treatment. The results revealed that Imazethapyr herbicide activates wheat antioxidant enzymes to reduce plant tolerance from damage caused by herbicide residues; therefore, it can be used as a marker or index of herbicide damage rate in physiological research.

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Antioxidant activity of rice plants sprayed with herbicides

Cited by 12 publications

References 24 publications

Cytotoxicity and Genotoxicity in Allium cepa L. Root Meristem Cells Exposed to the Herbicide Penoxsulam

Cytotoxicity and Genotoxicity in Allium cepa L. Root Meristem Cells Exposed to the Herbicide Penoxsulam

Control of Ipomoea grandifolia and antioxidant enzyme activity with bentazon and glyphosate at times and soil water conditions

Study of Changes in Activity of Wheat Antioxidant Enzymes under Stress Residue of Imazethapyr Herbicide

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