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Mao L, Quan Z, Liu ZS, Huang CH, Wang ZH, Tang TS, Li PL, Shao J, Liu YJ, Zhu BZ. Molecular mechanism of the metal-independent production of hydroxyl radicals by thiourea dioxide and H 2O 2. Proc Natl Acad Sci U S A 2024; 121:e2302967120. [PMID: 38547063 PMCID: PMC10998598 DOI: 10.1073/pnas.2302967120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/12/2023] [Indexed: 04/08/2024] Open
Abstract
It is well-known that highly reactive hydroxyl radicals (HO•) can be produced by the classic Fenton system and our recently discovered haloquinone/H2O2 system, but rarely from thiol-derivatives. Here, we found, unexpectedly, that HO• can be generated from H2O2 and thiourea dioxide (TUO2), a widely used and environmentally friendly bleaching agent. A carbon-centered radical and sulfite were detected and identified as the transient intermediates, and urea and sulfate as the final products, with the complementary application of electron spin-trapping, oxygen-18 isotope labeling coupled with HPLC/MS analysis. Density functional theory calculations were conducted to further elucidate the detailed pathways for HO• production. Taken together, we proposed that the molecular mechanism for HO• generation by TUO2/H2O2: TUO2 tautomerizes from sulfinic acid into ketone isomer (TUO2-K) through proton transfer, then a nucleophilic addition of H2O2 on the S atom of TUO2-K, forming a S-hydroperoxide intermediate TUO2-OOH, which dissociates homolytically to produce HO•. Our findings represent the first experimental and computational study on an unprecedented new molecular mechanism of HO• production from simple thiol-derived sulfinic acids, which may have broad chemical, environmental, and biomedical significance for future research on the application of the well-known bleaching agent and its analogs.
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Affiliation(s)
- Li Mao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing100085, China
- College of Resources and Environment, University of the Chinese Academy of Sciences, Beijing100049, China
| | - Zhuo Quan
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing100875, China
| | - Zhi-Sheng Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing100085, China
- College of Resources and Environment, University of the Chinese Academy of Sciences, Beijing100049, China
| | - Chun-Hua Huang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing100085, China
- College of Resources and Environment, University of the Chinese Academy of Sciences, Beijing100049, China
| | - Zi-Han Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing100085, China
- College of Resources and Environment, University of the Chinese Academy of Sciences, Beijing100049, China
| | - Tian-Shu Tang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing100085, China
- College of Resources and Environment, University of the Chinese Academy of Sciences, Beijing100049, China
| | - Pei-Lin Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing100085, China
- College of Resources and Environment, University of the Chinese Academy of Sciences, Beijing100049, China
| | - Jie Shao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing100085, China
- College of Resources and Environment, University of the Chinese Academy of Sciences, Beijing100049, China
| | - Ya-Jun Liu
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing100875, China
- Center for Advanced Materials Research, College of Chemistry, Beijing Normal University, Zhuhai519087, China
| | - Ben-Zhan Zhu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing100085, China
- College of Resources and Environment, University of the Chinese Academy of Sciences, Beijing100049, China
- State Key Laboratory of Chemical Resource Engineering, Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing100029, China
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Noh K, Sim J, Kim J, Kim J. Metal imidazolate sulphate frameworks as a variation of zeolitic imidazolate frameworks. Chem Commun (Camb) 2022; 58:2983-2986. [PMID: 35147156 DOI: 10.1039/d1cc07046k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sulphate ions can be incorporated into zinc imidazolate frameworks to give rise to zinc imidazolate sulphate frameworks, that is, a square-grid network, a zeolite-like GIS framework, or a porous pillar-layered structure where interlayer octahedral Zn2+ ions connect honeycomb-like layers.
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Affiliation(s)
- Kyungkyou Noh
- Department of Information Communication Convergence Technology, Soongsil University, Seoul 06978, Republic of Korea
| | - Jaeung Sim
- Department of Fire Safety Research, Korea Institute of Civil Engineering and Building Technology, Hwaseong-Si, Gyeonggi-Do 18544, Republic of Korea
| | - Jonghoon Kim
- Department of Chemistry, Soongsil University, Seoul 06978, Republic of Korea.
| | - Jaheon Kim
- Department of Chemistry, Soongsil University, Seoul 06978, Republic of Korea.
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3
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Mironov IV, Kharlamova VY. On the redox interaction of HAuCl4 with thiomalate, as well as with cysteine and glutathione in aqueous solutions. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120500] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Hu Y, Li W, Wang G, Pan C, Ji C, Gao Q. Kinetics on the Oxidation of Aminoiminomethanesulfonic Acid by Hypochlorous Acid: A Novel Product in the Chlorination of Aminoiminomethanesulfonic Acid. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ying Hu
- Department of Chemistry, School of Science China Pharmaceutical University Nanjing 211198, Jiangsu province P. R. China
- School of Chemical Engineering China University of Mining and Technology Xuzhou 2221111, Jiangsu province P. R. China
| | - Wei Li
- School of Chemical Engineering China University of Mining and Technology Xuzhou 2221111, Jiangsu province P. R. China
| | - Guichang Wang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and the Tianjin Key Lab and Molecule-based Material Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
| | - Changwei Pan
- School of Chemical Engineering China University of Mining and Technology Xuzhou 2221111, Jiangsu province P. R. China
| | - Chen Ji
- School of Chemical Engineering China University of Mining and Technology Xuzhou 2221111, Jiangsu province P. R. China
| | - Qingyu Gao
- School of Chemical Engineering China University of Mining and Technology Xuzhou 2221111, Jiangsu province P. R. China
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5
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Srivastava AK, Pandey M, Ghate T, Kumar V, Upadhyay MK, Majumdar A, Sanjukta AK, Agrawal AK, Bose S, Srivastava S, Suprasanna P. Chemical intervention for enhancing growth and reducing grain arsenic accumulation in rice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 276:116719. [PMID: 33640652 DOI: 10.1016/j.envpol.2021.116719] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 06/12/2023]
Abstract
Arsenic (As) is a ubiquitous environmental carcinogen that enters the human food chain mainly through rice grains. In the present study, we evaluated the potential of thiourea (TU; non-physiological reactive oxygen species scavenger) in mitigating the negative effects of arsenic (As) stress in indica rice variety IR64, with the overall aim to reduce grain As accumulation. At seedling stage, As + TU treatment induced the formation of more numerous and longer crown roots compared with As alone. The As accumulation in main root, crown root, lower leaf and upper leaf was significantly reduced to 0.1-, 0.14-, 0.16-, 0.14-fold, respectively in As + TU treated seedlings compared with those of As alone. This reduced As accumulation was also coincided with light-dependent suppression in the expression levels of aquaporins and photosynthesis-related genes in As + TU treated roots. In addition, the foliar-supplemented TU under As-stress maintained reducing redox conditions which decreased the rate of As accumulation in flag leaves and, eventually grain As by 0.53-fold compared with those of As treatment. The agronomic feasibility of TU was validated under naturally As contaminated sites of Nadia (West Bengal, India). The tiller numbers and crop productivity (kg seed/ha) of TU-sprayed plants were increased by 1.5- and 1.18-fold, respectively; while, grain As accumulation was reduced by 0.36-fold compared with those of water-sprayed control. Thus, this study established TU application as a sustainable solution for cultivating rice in As-contaminated field conditions.
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Affiliation(s)
- Ashish Kumar Srivastava
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India; Homi Bhabha National Institute, Mumbai, 400094, India.
| | - Manish Pandey
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India
| | - Tejashree Ghate
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India
| | - Vikash Kumar
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India
| | - Munish Kumar Upadhyay
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, UP, India
| | - Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur, West Bengal, 741246, India
| | - Abhay Kumar Sanjukta
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India
| | - Ashish Kumar Agrawal
- Technical Physics Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India
| | - Sutapa Bose
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur, West Bengal, 741246, India
| | - Sudhakar Srivastava
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, UP, India
| | - Penna Suprasanna
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400 085, India; Homi Bhabha National Institute, Mumbai, 400094, India
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Upadhyay MK, Majumdar A, Barla A, Bose S, Srivastava S. Thiourea supplementation mediated reduction of grain arsenic in rice (Oryza sativa L.) cultivars: A two year field study. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124368. [PMID: 33153787 DOI: 10.1016/j.jhazmat.2020.124368] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/28/2020] [Accepted: 10/21/2020] [Indexed: 06/11/2023]
Abstract
The present study delineates the interactions of arsenic (As), a carcinogenic metalloid, and thiourea (TU), a non-physiological reactive oxygen species (ROS) scavenger, in rice plants grown in As contaminated fields in West Bengal, India. The study was performed for four consecutive seasons (two boro and two aman) in 2016 and 2017 with two local rice cultivars; Gosai and Satabdi (IET-4786) in a control and two As contaminated experimental fields. Thiourea (0.05% wt/vol) treatment was given in the form of seed priming and foliar spray. Thiourea significantly improved growth and yield of rice plants and reduced As concentration in root, shoot, husk and grains in both cultivars and fields. The reduction in As concentration ranged from 10.3% to 27.5% in four seasons in different fields. The average (four seasons) increase in yield was recorded about ~8.1% and ~11.5% in control, ~20.2% and ~18.6% in experimental field 1, and ~16.2% and ~24.1% in experimental field 2, for gosai and satabdi, respectively. Mean hazard quotient (HQ) and incremental lifetime cancer risk (ILCR) values of As reduced upon TU supplementation for both cultivars as compared to that of non-TU plants. Hence, TU can be effectively used to cultivate rice safely in As contaminated fields.
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Affiliation(s)
- Munish Kumar Upadhyay
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur 741246, West Bengal, India
| | - Anil Barla
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur 741246, West Bengal, India
| | - Sutapa Bose
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur 741246, West Bengal, India
| | - Sudhakar Srivastava
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India.
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7
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Shao J, Liu X, Makarov SV, Pei K. TDO structure investigation in aqueous solution by TOF-MS, UV, Raman and quantum chemistry calculations. J Sulphur Chem 2019. [DOI: 10.1080/17415993.2019.1598411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Jianzhong Shao
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
| | - Xiaoyun Liu
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
| | | | - Kemei Pei
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
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8
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Chatterjee D, van Eldik R. RuIII(EDTA) mediated activation of redox signalling molecules. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.08.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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9
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Srivastava AK, Sablok G, Hackenberg M, Deshpande U, Suprasanna P. Thiourea priming enhances salt tolerance through co-ordinated regulation of microRNAs and hormones in Brassica juncea. Sci Rep 2017; 7:45490. [PMID: 28382938 PMCID: PMC5382540 DOI: 10.1038/srep45490] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 02/22/2017] [Indexed: 12/14/2022] Open
Abstract
Activation of stress tolerance mechanisms demands transcriptional reprogramming. Salt stress, a major threat to plant growth, enhances ROS production and affects transcription through modulation of miRNAs and hormones. The present study delineates salt stress ameliorating action of thiourea (TU, a ROS scavenger) in Brassica juncea and provides mechanistic link between redox, microRNA and hormones. The ameliorative potential of TU towards NaCl stress was related with its ability to decrease ROS accumulation in roots and increase Na+ accumulation in shoots. Small RNA sequencing revealed enrichment of down-regulated miRNAs in NaCl + TU treated roots, indicating transcriptional activation. Ranking analysis identified three key genes including BRX4, CBL10 and PHO1, showing inverse relationship with corresponding miRNA expression, which were responsible for TU mediated stress mitigation. Additionally, ABA level was consistently higher till 24 h in NaCl, while NaCl + TU treated roots showed only transient increase at 4 h suggesting an effective stress management. Jasmonate and auxin levels were also increased, which prioritized defence and facilitated root growth, respectively. Thus, the study highlights redox as one of the "core" components regulating miRNA and hormone levels, and also strengthens the use of TU as a redox priming agent for imparting crop resilience to salt stress.
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Affiliation(s)
- Ashish Kumar Srivastava
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Gaurav Sablok
- Climate Change Cluster (C3), University of Technology Sydney, PO Box 123, Broadway, NSW 2007, Australia
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, Via E. Mach 1, 38010 San Michele all’Adige, Trento, Italy
| | - Michael Hackenberg
- Department of Genetics, Faculty of Sciences, University of Granada, Granada, 1s8071, Spain
| | - Uday Deshpande
- Cancer Genetics India (Bioserve), CNR complex, Mallapur Road, Hyderabad - 500076, India
| | - Penna Suprasanna
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai 400085, India
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10
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Esteves H, Brito TO, Ribeiro-Viana R, de Fátima Â, Macedo F. Tert
-butyl hydroperoxide-promoted guanylation of amines with benzoylthioureas: Mechanistic insights by HRMS and 1
H NMR. J PHYS ORG CHEM 2017. [DOI: 10.1002/poc.3698] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Henrique Esteves
- Departamento de Química; Universidade Estadual de Londrina; Rod. Celso Garcia Cid, km. 380, Londrina Paraná 86057-970 Brazil
| | - Tiago Oliveira Brito
- Departamento de Química; Universidade Estadual de Londrina; Rod. Celso Garcia Cid, km. 380, Londrina Paraná 86057-970 Brazil
| | - Renato Ribeiro-Viana
- Departamento de Química; Universidade Estadual de Londrina; Rod. Celso Garcia Cid, km. 380, Londrina Paraná 86057-970 Brazil
| | - Ângelo de Fátima
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Pres. Antônio Carlos, 6627, Belo Horizonte Minas Gerais 31270-901 Brazil
| | - Fernando Macedo
- Departamento de Química; Universidade Estadual de Londrina; Rod. Celso Garcia Cid, km. 380, Londrina Paraná 86057-970 Brazil
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11
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Kinetics of the outer-sphere oxidation of thiourea by heteropoly-α2-17-tungsto-1-vanadodiphosphate anion. TRANSIT METAL CHEM 2016. [DOI: 10.1007/s11243-016-0111-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Oxidation of thiourea by peroxomonosulfate ion catalyzed by a ruthenium(III) complex: kinetic and mechanistic studies. TRANSIT METAL CHEM 2015. [DOI: 10.1007/s11243-015-9991-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Makarov SV, Horváth AK, Silaghi-Dumitrescu R, Gao Q. Recent Developments in the Chemistry of Thiourea Oxides. Chemistry 2014; 20:14164-76. [DOI: 10.1002/chem.201403453] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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14
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Yuan L, Yang T, Liu Y, Hu Y, Zhao Y, Zheng J, Gao Q. pH Oscillations and Mechanistic Analysis in the Hydrogen Peroxide–Sulfite–Thiourea Reaction System. J Phys Chem A 2014; 118:2702-8. [DOI: 10.1021/jp500627z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ling Yuan
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China
| | - Tao Yang
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China
| | - Yang Liu
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China
| | - Ying Hu
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China
| | - Yuemin Zhao
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China
| | - Juhua Zheng
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China
| | - Qingyu Gao
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China
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15
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Csekő G, Hu Y, Song Y, Kégl TR, Gao Q, Makarov SV, Horváth AK. Kinetic Evidence of Tautomerism of Thiourea Dioxide in Aqueous Acidic Solutions. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201400059] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Pan C, Liu Y, Horváth AK, Wang Z, Hu Y, Ji C, Zhao Y, Gao Q. Kinetics and Mechanism of the Alkaline Decomposition of Hexathionate Ion. J Phys Chem A 2013; 117:2924-31. [DOI: 10.1021/jp400339u] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Changwei Pan
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116,
People’s Republic of China
| | - Yang Liu
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116,
People’s Republic of China
| | - Attila K. Horváth
- Department of Inorganic Chemistry, University of Pécs, Ifjúság útja
6., H-7624 Pécs, Hungary
| | - Zhen Wang
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116,
People’s Republic of China
| | - Ying Hu
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116,
People’s Republic of China
| | - Chen Ji
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116,
People’s Republic of China
| | - Yuemin Zhao
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116,
People’s Republic of China
| | - Qingyu Gao
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116,
People’s Republic of China
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17
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Vogt AP, Tischer T, Geckle U, Greiner AM, Trouillet V, Kaupp M, Barner L, Hofe T, Barner-Kowollik C. Access to Intrinsically Glucoside-Based Microspheres with Boron Affinity. Macromol Rapid Commun 2013; 34:916-21. [DOI: 10.1002/marc.201200834] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2012] [Revised: 03/04/2013] [Indexed: 12/22/2022]
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18
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Chatterjee D, Rothbart S, van Eldik R. Selective oxidation of thiourea with H2O2 catalyzed by [RuIII(edta)(H2O)]−: kinetic and mechanistic studies. Dalton Trans 2013; 42:4725-9. [DOI: 10.1039/c3dt32737j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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20
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Pan C, Wang W, Horváth AK, Xie J, Lu Y, Wang Z, Ji C, Gao Q. Kinetics and Mechanism of Alkaline Decomposition of the Pentathionate Ion by the Simultaneous Tracking of Different Sulfur Species by High-Performance Liquid Chromatography. Inorg Chem 2011; 50:9670-7. [DOI: 10.1021/ic201424m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Changwei Pan
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
| | - Wei Wang
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
| | - Attila K. Horváth
- Department of Inorganic Chemistry, University of Pécs, Ifjúság útja 6, H-7624 Pécs, Hungary
| | - Jingxuan Xie
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
| | - Yongchao Lu
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
| | - Zhen Wang
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
| | - Chen Ji
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
| | - Qingyu Gao
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
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21
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Srivastava AK, Srivastava S, Penna S, D'Souza SF. Thiourea orchestrates regulation of redox state and antioxidant responses to reduce the NaCl-induced oxidative damage in Indian mustard (Brassica juncea (L.) Czern.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2011; 49:676-86. [PMID: 21421325 DOI: 10.1016/j.plaphy.2011.02.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Accepted: 02/17/2011] [Indexed: 05/15/2023]
Abstract
Thiourea (TU) has been found to enhance the stress tolerance of plants in our earlier field trials. In the present study, the TU mediated effect on the redox and antioxidant responses were studied in response to salinity (NaCl) stress in Indian mustard (Brassica juncea (L.) Czern.) seedlings. Biochemical analyses of reactive oxygen species (ROS) and lipid peroxidation revealed that TU supplementation to NaCl brought down their levels to near control values as compared to that of NaCl stress. These positive effects could be correlated to the significant increases in the 1,1-diphenyl-2-picrylhydrazyl (DPPH)-radical scavenging activity, in the levels of reduced glutathione (GSH) and GSH/GSSG (reduced/oxidized glutathione) ratio and in the activities of superoxide dismutase (SOD; EC 1.1.5.1.1) and glutathione reductase (GR; EC 1.6.4.2) in NaCl+TU treatment as compared to that of NaCl treatment. Further, TU supplementation allowed plants to avoid an over-accumulation of pyridine nucleotides, to stimulate alternative pathways (through higher glycolate oxidase activity; EC 1.1.3.15) for channeling reducing equivalents and thus, to maintain the redox state to near control levels. These positive responses were also linked to an increased energy utilization (analyzed in terms of ATP/ADP ratio) and presumably to an early signaling of the stress through stimulated activity of ascorbate oxidase (EC 1.10.3.3), an important component of stress signaling. A significant reduction observed in the level of sodium ion (Na(+)) accumulation indicated that TU mediated tolerance is attributable to salt avoidance. Thus, the present study suggested that TU treatment regulated redox and antioxidant machinery to reduce the NaCl-induced oxidative stress.
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Affiliation(s)
- Ashish K Srivastava
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
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Sahu S, Rani Sahoo P, Patel S, Mishra BK. Oxidation of thiourea and substituted thioureas: a review. J Sulphur Chem 2011. [DOI: 10.1080/17415993.2010.550294] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Xu L, Horváth AK, Hu Y, Ji C, Zhao Y, Gao Q. High performance liquid chromatography study on the kinetics and mechanism of chlorite-thiosulfate reaction in slightly alkaline medium. J Phys Chem A 2011; 115:1853-60. [PMID: 21344944 DOI: 10.1021/jp110909y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Chlorite-thiosulfate reaction was studied by high performance liquid chromatography under slightly alkaline solution by monitoring the concentration of thiosulfate and tetrathionate simultaneously during the course of reaction. It is demonstrated that various polythionates are formed and the composition of polythionates mainly depends on pH. Initial rate studies have revealed that the formal kinetic order of hydrogen ion is unambiguously unity but that of chlorite ion is significantly larger, while that of thiosulfate is lower than one. A 10-step kinetic model is proposed with seven fitted and three fixed parameters by simultaneous evaluation of kinetic data taking all the important characteristics of the measured kinetic curves into account. It is also enlightened that higher formal kinetic order of chlorite and lower kinetic order of thiosulfate than unity is an inherent feature of the system and may explain the systematic deviation between the measured and the calculated data encountered in previous studies.
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Affiliation(s)
- Li Xu
- College of Chemical Engineering, China University Mining and Technology, Xuzhou, 221116, People's Republic of China
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Wu WT, Liao WP, Chen JS, Wu JJ. An Efficient Route to Nanostructured Tungsten Oxide Films with Improved Electrochromic Properties. Chemphyschem 2010; 11:3306-12. [DOI: 10.1002/cphc.201000373] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Lu Y, Gao Q, Xu L, Zhao Y, Epstein IR. Oxygen−Sulfur Species Distribution and Kinetic Analysis in the Hydrogen Peroxide−Thiosulfate System. Inorg Chem 2010; 49:6026-34. [DOI: 10.1021/ic100573a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yongchao Lu
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China
| | - Qingyu Gao
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China
- Department of Chemistry and Volen Center for Complex Systems, MS 015, Brandeis University, Waltham, Massachusetts 02454-9110
| | - Li Xu
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China
| | - Yuemin Zhao
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China
| | - Irving R. Epstein
- Department of Chemistry and Volen Center for Complex Systems, MS 015, Brandeis University, Waltham, Massachusetts 02454-9110
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Bek RY, Shevtsova ON. Effect of solution pH on the electrochemical behavior of thiocarbamide at gold and platinum electrodes. RUSS J ELECTROCHEM+ 2010. [DOI: 10.1134/s1023193510040130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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