2,4-Dichlorophenoxyacetic acid promotes S-nitrosylation and oxidation of actin affecting cytoskeleton and peroxisomal dynamics

Rodríguez‐Serrano, María; Pazmiño, Diana M.; Sparkes, Imogen; Rochetti, Averil; Hawes, C. R.; Romero‐Puertas, María C.; Sandalio, Luisa M.

doi:10.1093/jxb/eru237

Cited by 72 publications

(52 citation statements)

References 67 publications

(127 reference statements)

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“…Also in the highest 2,4-D concentration treatments (3 and 4 mg dm −3 ) in Chrysanthemum sp., a brown color of the calli resulted from the production of secondary metabolites in the form of phenolic, terpenoid, isoprenoid, and flavonoid groups [43]. Moreover, 2,4-D may induce the production of ethylene [15], which promotes oxidative and nitrosative stress causing disturbances in the actin cytoskeleton involved in post-translational modification of actin by oxidation and nitrosylation [44]. This may then cause an alternation of peroxisomes and mitochondria mobility.…”

Section: Discussionmentioning

confidence: 99%

Changes accompanying proliferative capacity and morphology of Nicotiana tabacum L. callus in response to 2,4-D

2017

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The common trait of all auxins is a stimulation of cell elongation and also cell division in the presence of cytokinin; both are essential for callus induction and its multiplication. The response of plant tissues to various compounds with auxin activity may be quite different. In this study, the effectiveness of a synthetic auxin, 2,4-dichlorofenoxyacetic acid (2,4-D), instead of the generally applied natural auxin, indole-3-acetic acid (IAA), was tested for the proliferation of Nicotiana tabacum callus. The following concentrations of 2,4-D were tested: 0.1, 0.5, 1.0, 1.5, and 2.0 mg dm −3 . Callus was derived from stem pith and its proliferation allowed on MS medium through five subcultures at 25°C and in darkness. After each passage, the fresh weight and morphological features of the callus were determined. The 0.5 mg dm −3 2,4-D treatment was the most favorable for producing the greatest increase in fresh weight in each of five subsequent subcultures as well as maintaining normal morphological features for proliferation. However, the 1.0 mg dm −3 2,4-D treatment in comparison with the lowest, 0.1 mg dm −3 , was more beneficial when considering regular increases of fresh weight and a better cell cohesion for callus growth.

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Section: Discussionmentioning

confidence: 99%

Changes accompanying proliferative capacity and morphology of Nicotiana tabacum L. callus in response to 2,4-D

2017

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“…A reduced peroxisomes antioxidative function was observed after affection of actin polymerization and bundling by auxinic herbicides. Hence, the cell enters a state of severe oxidative stress because of the loss of peroxisomes and the mitochondria actions (Rodríguez-Serrano et al 2014). …”

Section: Effect Of Different Auxins On Callus Frequencymentioning

confidence: 99%

“…In plant, most cells possess the totipotency potential, since they are able to regenerate the complete array of plant tissues via already differentiated organs. A wide spectrum of crop tissues has been shown the ability to regenerate whole plants under suitable culture conditions (Stefanello et al 2005;Thokozani et al 2013;Rodríguez-Serrano et al 2014;Ahmad et al 2015;Vennapusa et al 2015;Elhiti and Stasolla 2016).…”

Section: Effect Of Various Explants On Callus Frequencymentioning

confidence: 99%

Enhancing somatic embryogenesis of Malaysian rice cultivar MR219 using adjuvant materials in a high-efficiency protocol

Abiri

Mahmood

Shaharuddin

et al. 2017

Int. J. Environ. Sci. Technol.

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Enhancing of the efficient tissue culture protocol for somatic embryos would facilitate the engineered breeding plants program. In this report, we describe the reproducible protocol of Malaysian rice (Oryza sativa L.) cultivar MR219 through somatic embryogenesis. Effect of a wide spectrum of exogenesis materials was assessed in three phases, namely callogenesis, proliferation and regeneration. Initially, rice seeds were subjected under various auxin treatments. Secondly, the effect of different concentrations of 2,4-D on callus induction was evaluated. In the next step, the efficiency of different explants was identified. Subsequently, the effects of different auxins, cytokinins, L-proline, casein hydrolysate and potassium metasilicate concentrations on the callus proliferation and regeneration were considered. For the callogenesis phase, 2 mg L -1 of 2,4-D and roots were chosen as the best auxin and explant. In the callus proliferation stage, the highest efficiency was observed at week eight in the MS media supplemented with 2 mg

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“…The lack of high ROS levels in the tip alters intracellular Ca 2+ levels, leading to disruption of the actin cytoskeleton and to DNA degradation in the nucleus (Obara et al, 2001;Thomas et al, 2006). In Papaver rhoeas SI pollen tube, ROS and later NO accumulation lead to the reorganization of the actin cytoskeleton (Geitmann et al, 2000;Bosch and Franklin-Tong, 2007;Wilkins et al, 2011) through posttranscriptional modifications (carbonylation, S-nitrosylation) causing interference with actin polymerization, leading to PCD (Rodríguez- Serrano et al, 2014). In Olea europaea SI pollens, NO and O 2…”

Section: Pollinationmentioning

confidence: 99%

Cross‐talk of Reactive Oxygen Species and Nitric Oxide in Various Processes of Plant Development

Kolbert

Feigl

2017

Reactive Oxygen Species in Plants

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What does the 'x' stand for here? AQ2 Do you mean Kim et al. 2006 as listed in the References section? AQ3 Pls define 'PTM' here. AQ4 Explain/define this? AQ5 Only 2009 listed for these authors; check? AQ6 Pls check my 'key' to abbreviations and insert definition for 'PA'. AQ7 Spelling: should be 'phytoglobin'? AQ8 Check my expansion of ABA here. AQ9 In what sense 'intensification'? do you mean 'upregulation'? AQ10 Do you mean Desel & Krupinska 2005 as listed? AQ11 Sense? Do you mean 'suggesting' or 'evidencing' maybe? AQ12 Sense not clear; pls check. AQ13 Do you mean Tsukagoshi et al. 2010 as listed? AQ14 Pls define/gloss 'PIN' here. AQ15 Sense: do you mean 'inactivating NADPH oxidase'? AQ16 Check text as edited. AQ17 Sense not clear; pls rephrase. AQ18 Do you mean 'ripened'? AQ19 Pls can you supply a page range for the section/chapter cited? AQ20 Pls supply names and initials of editors for this book if possible.

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2,4-Dichlorophenoxyacetic acid promotes S-nitrosylation and oxidation of actin affecting cytoskeleton and peroxisomal dynamics

Abstract: Summary2,4-D affects actin polymerization by post-translational modifications (carbonylation and S-nitrosylation), thereby disturbing the actin cytoskeleton and the dynamics of peroxisomes. Xanthine dehydrogenase is involved in ROS production under these conditions.

Cited by 72 publications

References 67 publications

Changes accompanying proliferative capacity and morphology of Nicotiana tabacum L. callus in response to 2,4-D

Changes accompanying proliferative capacity and morphology of Nicotiana tabacum L. callus in response to 2,4-D

Enhancing somatic embryogenesis of Malaysian rice cultivar MR219 using adjuvant materials in a high-efficiency protocol

Cross‐talk of Reactive Oxygen Species and Nitric Oxide in Various Processes of Plant Development

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