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Traxler C, Gaines TA, Küpper A, Luemmen P, Dayan FE. The nexus between reactive oxygen species and the mechanism of action of herbicides. J Biol Chem 2023; 299:105267. [PMID: 37734554 PMCID: PMC10591016 DOI: 10.1016/j.jbc.2023.105267] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 09/11/2023] [Accepted: 09/13/2023] [Indexed: 09/23/2023] Open
Abstract
Herbicides are small molecules that act by inhibiting specific molecular target sites within primary plant metabolic pathways resulting in catastrophic and lethal consequences. The stress induced by herbicides generates reactive oxygen species (ROS), but little is known about the nexus between each herbicide mode of action (MoA) and their respective ability to induce ROS formation. Indeed, some herbicides cause dramatic surges in ROS levels as part of their primary MoA, whereas other herbicides may generate some ROS as a secondary effect of the stress they imposed on plants. In this review, we discuss the types of ROS and their respective reactivity and describe their involvement for each known MoA based on the new Herbicide Resistance Action Committee classification.
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Affiliation(s)
- Catherine Traxler
- Department of Agricultural Biology, Colorado State University, Fort Collins, Colorado, USA
| | - Todd A Gaines
- Department of Agricultural Biology, Colorado State University, Fort Collins, Colorado, USA
| | - Anita Küpper
- Plant Biotechnology Division, Bayer CropScience, Chesterfield, Missouri, USA
| | - Peter Luemmen
- Research & Development Division, Bayer AG, Industriepark Höchst, Frankfurt am Main, Germany
| | - Franck E Dayan
- Department of Agricultural Biology, Colorado State University, Fort Collins, Colorado, USA.
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Prasad A, Manoharan RR, Sedlářová M, Pospíšil P. Free Radical-Mediated Protein Radical Formation in Differentiating Monocytes. Int J Mol Sci 2021; 22:ijms22189963. [PMID: 34576127 PMCID: PMC8468151 DOI: 10.3390/ijms22189963] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/04/2021] [Accepted: 09/08/2021] [Indexed: 12/03/2022] Open
Abstract
Free radical-mediated activation of inflammatory macrophages remains ambiguous with its limitation to study within biological systems. U-937 and HL-60 cell lines serve as a well-defined model system known to differentiate into either macrophages or dendritic cells in response to various chemical stimuli linked with reactive oxygen species (ROS) production. Our present work utilizes phorbol 12-myristate-13-acetate (PMA) as a stimulant, and factors such as concentration and incubation time were considered to achieve optimized differentiation conditions. ROS formation likely hydroxyl radical (HO●) was confirmed by electron paramagnetic resonance (EPR) spectroscopy combined with confocal laser scanning microscopy (CLSM). In particular, U-937 cells were utilized further to identify proteins undergoing oxidation by ROS using anti-DMPO (5,5-dimethyl-1-pyrroline N-oxide) antibodies. Additionally, the expression pattern of NADPH Oxidase 4 (NOX4) in relation to induction with PMA was monitored to correlate the pattern of ROS generated. Utilizing macrophages as a model system, findings from the present study provide a valuable source for expanding the knowledge of differentiation and protein expression dynamics.
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Affiliation(s)
- Ankush Prasad
- Centre of the Region Haná for Biotechnological and Agricultural Research, Department of Biophysics, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic;
- Correspondence: (A.P.); (P.P.); Tel.: +420-585634752 (A.P.); Fax: +420-585225737 (A.P.)
| | - Renuka Ramalingam Manoharan
- Centre of the Region Haná for Biotechnological and Agricultural Research, Department of Biophysics, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic;
| | - Michaela Sedlářová
- Department of Botany, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic;
| | - Pavel Pospíšil
- Centre of the Region Haná for Biotechnological and Agricultural Research, Department of Biophysics, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic;
- Correspondence: (A.P.); (P.P.); Tel.: +420-585634752 (A.P.); Fax: +420-585225737 (A.P.)
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Rathod NB, Ranveer RC, Bhagwat PK, Ozogul F, Benjakul S, Pillai S, Annapure US. Cold plasma for the preservation of aquatic food products: An overview. Compr Rev Food Sci Food Saf 2021; 20:4407-4425. [PMID: 34355478 DOI: 10.1111/1541-4337.12815] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 06/24/2021] [Accepted: 07/02/2021] [Indexed: 12/17/2022]
Abstract
Cold plasma (CP) is an upcoming technology implemented for the preservation of highly perishable foods, especially aquatic food products (AFPs). The high moisture content, high-quality protein with all essential amino acids and unsaturated fatty acids makes AFP more susceptible to microbial spoilage and oxidation of lipids and proteins. Spoilage lowers the nutritive value and could generate toxic components, making it unsafe for consumption. In recent times, the rising demand for food products of aquatic origin with preserved quality and extended shelf-life has been recorded. In addition, minimally or nonthermally processed and preserved foods are gaining great attention. CP technology has demonstrated an excellent ability to inactivate microorganisms without promoting their resistance and triggering some deteriorative enzymes, which are typical factors responsible for the spoilage of AFP. Consequently, CP could be recommended as a minimal processing intervention for preserving the quality of AFP. This review focuses on different mechanisms of fish spoilage, that is, by microorganisms and oxidation, their inhibition via the application of CP, and the retention of quality and shelf-life extension of AFP.
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Affiliation(s)
- Nikheel Bhojraj Rathod
- Post Harvest Management of Meat, Poultry and Fish, Post Graduate Institute of Post Harvest Management (Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli), Raigad, Maharashtra, India
| | - Rahul Chudaman Ranveer
- Post Harvest Management of Meat, Poultry and Fish, Post Graduate Institute of Post Harvest Management (Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli), Raigad, Maharashtra, India
| | - Prashant Kishor Bhagwat
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, Durban, South Africa
| | - Fatih Ozogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana, Turkey
| | - Sottawat Benjakul
- International Center for Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Santhosh Pillai
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, Durban, South Africa
| | - Uday Shriramrao Annapure
- Department of Food Engineering and Technology, Institute of Chemical Technology, Matunga, Mumbai, Maharashtra, India
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Tocopherol controls D1 amino acid oxidation by oxygen radicals in Photosystem II. Proc Natl Acad Sci U S A 2021; 118:2019246118. [PMID: 33479170 DOI: 10.1073/pnas.2019246118] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Photosystem II (PSII) is an intrinsic membrane protein complex that functions as a light-driven water:plastoquinone oxidoreductase in oxygenic photosynthesis. Electron transport in PSII is associated with formation of reactive oxygen species (ROS) responsible for oxidative modifications of PSII proteins. In this study, oxidative modifications of the D1 and D2 proteins by the superoxide anion (O2 •-) and the hydroxyl (HO•) radicals were studied in WT and a tocopherol cyclase (vte1) mutant, which is deficient in the lipid-soluble antioxidant α-tocopherol. In the absence of this antioxidant, high-resolution tandem mass spectrometry was used to identify oxidation of D1:130E to hydroxyglutamic acid by O2 •- at the PheoD1 site. Additionally, D1:246Y was modified to either tyrosine hydroperoxide or dihydroxyphenylalanine by O2 •- and HO•, respectively, in the vicinity of the nonheme iron. We propose that α-tocopherol is localized near PheoD1 and the nonheme iron, with its chromanol head exposed to the lipid-water interface. This helps to prevent oxidative modification of the amino acid's hydrogen that is bonded to PheoD1 and the nonheme iron (via bicarbonate), and thus protects electron transport in PSII from ROS damage.
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Prasad A, Sedlářová M, Balukova A, Rác M, Pospíšil P. Reactive Oxygen Species as a Response to Wounding: In Vivo Imaging in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2020; 10:1660. [PMID: 31998345 PMCID: PMC6962234 DOI: 10.3389/fpls.2019.01660] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 11/25/2019] [Indexed: 05/29/2023]
Abstract
Mechanical injury or wounding in plants can be attributed to abiotic or/and biotic causes. Subsequent defense responses are either local, i.e. within or in the close vicinity of affected tissue, or systemic, i.e. at distant plant organs. Stress stimuli activate a plethora of early and late reactions, from electric signals induced within seconds upon injury, oxidative burst within minutes, and slightly slower changes in hormone levels or expression of defense-related genes, to later cell wall reinforcement by polysaccharides deposition, or accumulation of proteinase inhibitors and hydrolytic enzymes. In the current study, we focused on the production of reactive oxygen species (ROS) in wounded Arabidopsis leaves. Based on fluorescence imaging, we provide experimental evidence that ROS [superoxide anion radical (O2 •-) and singlet oxygen (1O2)] are produced following wounding. As a consequence, oxidation of biomolecules is induced, predominantly of polyunsaturated fatty acid, which leads to the formation of reactive intermediate products and electronically excited species.
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Affiliation(s)
- Ankush Prasad
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czechia
| | - Michaela Sedlářová
- Department of Botany, Faculty of Science, Palacký University, Olomouc, Czechia
| | - Anastasiia Balukova
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czechia
| | - Marek Rác
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czechia
| | - Pavel Pospíšil
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czechia
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Kumar A, Prasad A, Sedlářová M, Pospíšil P. Characterization of Protein Radicals in Arabidopsis. Front Physiol 2019; 10:958. [PMID: 31456690 PMCID: PMC6700370 DOI: 10.3389/fphys.2019.00958] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/09/2019] [Indexed: 01/23/2023] Open
Abstract
Oxidative modification of proteins in photosystem II (PSII) exposed to high light has been studied for a few decades, but the characterization of protein radicals formed by protein oxidation is largely unknown. Protein oxidation is induced by the direct reaction of proteins with reactive oxygen species known to form highly reactive protein radicals comprising carbon-centered (alkyl) and oxygen-centered (peroxyl and alkoxyl) radicals. In this study, protein radicals were monitored in Arabidopsis exposed to high light by immuno-spin trapping technique based on the detection of 5,5-dimethyl-1-pyrroline N-oxide (DMPO) nitrone adducts using the anti-DMPO antibody. Protein radicals were imaged in Arabidopsis leaves and chloroplasts by confocal laser scanning microscopy using fluorescein conjugated with the anti-DMPO antibody. Characterization of protein radicals by standard blotting techniques using PSII protein specific antibodies shows that protein radicals are formed on D1, D2, CP43, CP47, and Lhcb3 proteins. Protein oxidation reflected by the appearance/disappearance of the protein bands reveals that formation of protein radicals was associated with protein fragmentation (cleavage of the D1 peptide bonds) and aggregation (cross-linking with another PSII subunits). Characterization of protein radical formation is important for better understating of the mechanism of oxidative modification of PSII proteins under high light.
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Affiliation(s)
- Aditya Kumar
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University Olomouc, Olomouc, Czechia
| | - Ankush Prasad
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University Olomouc, Olomouc, Czechia
| | - Michaela Sedlářová
- Department of Botany, Faculty of Science, Palacký University Olomouc, Olomouc, Czechia
| | - Pavel Pospíšil
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University Olomouc, Olomouc, Czechia
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Kumar A, Prasad A, Sedlářová M, Pospíšil P. Data on detection of singlet oxygen, hydroxyl radical and organic radical in Arabidopsis thaliana. Data Brief 2018; 21:2246-2252. [PMID: 30555863 PMCID: PMC6276547 DOI: 10.1016/j.dib.2018.11.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/02/2018] [Accepted: 11/08/2018] [Indexed: 12/02/2022] Open
Abstract
This article contains data related to the research article entitled, “Organic radical imaging in plants: Focus on protein radicals” (Kumar et al., 2018). The data presented herein focus on reactive oxygen species (ROS) and organic radical formed within photosynthetic tissues of Arabidopsis thaliana during high light stress and includes (1) Confocal laser scanning microscopic images using 3′-p-(hydroxyphenyl) fluorescein (HPF) as specific probe for the detection of hydroxyl radical (HO•); (2) Confocal laser scanning microscopic images using Singlet Oxygen Sensor Green (SOSG) as a specific probe for the detection of singlet oxygen (1O2) and; (3) Electron paramagnetic resonance (EPR) spectroscopy using spin traps for the detection of organic radical.
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Affiliation(s)
- Aditya Kumar
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Ankush Prasad
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Michaela Sedlářová
- Department of Botany, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Pavel Pospíšil
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
- Corresponding author. Fax: +420 585225737.
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