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Guo W, Li G, Wang N, Yang C, Peng H, Wang M, Liu D. Hen Egg White Lysozyme (HEWL) Confers Resistance to Verticillium Wilt in Cotton by Inhibiting the Spread of Fungus and Generating ROS Burst. Int J Mol Sci 2023; 24:17164. [PMID: 38138993 PMCID: PMC10743298 DOI: 10.3390/ijms242417164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/01/2023] [Accepted: 12/03/2023] [Indexed: 12/24/2023] Open
Abstract
Verticillium wilt is a soil-borne vascular disease caused by the fungal pathogen Verticillium dahliae. It causes great harm to upland cotton (Gossypium hirsutum) yield and quality. A previous study has shown that Hen egg white lysozyme (HEWL) exerts strong inhibitory activity against V. dahliae in vitro. In the current study, we introduced the HEWL gene into cotton through the Agrobacterium-mediated transformation, and the exogenous HEWL protein was successfully expressed in cotton. Our study revealed that HEWL was able to significantly inhibit the proliferation of V. dahlia in cotton. Consequently, the overexpression of HEWL effectively improved the resistance to Verticillium wilt in transgenic cotton. In addition, ROS accumulation and NO content increased rapidly after the V. dahliae inoculation of plant leaves overexpressing HEWL. In addition, the expression of the PR genes was significantly up-regulated. Taken together, our results suggest that HEWL significantly improves resistance to Verticillium wilt by inhibiting the growth of pathogenic fungus, triggering ROS burst, and activating PR genes expression in cotton.
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Affiliation(s)
- Wenfang Guo
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | | | | | | | | | | | - Dehu Liu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Peng XJ, Tian XR, Yu SJ, Zhao TT, Bian Q, Zhao WG. Design, synthesis, and fungicidal activities of novel piperazine thiazole derivatives containing oxime ether or oxime ester moieties. PEST MANAGEMENT SCIENCE 2023; 79:1977-1986. [PMID: 36661091 DOI: 10.1002/ps.7374] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/24/2022] [Accepted: 01/20/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND To study the effect of changing the piperidine ring of oxathiapiprolin on the fungicidal activity, we designed and synthesized novel piperazine thiazole derivatives containing oxime ether or oxime ester moieties, and studied their fungicidal activities against Phytophthora capsici in vitro. RESULTS These derivatives showed moderate to good fungicidal activities against Phytophthora capsici, two oxime ether derivatives showed higher fungicidal activity in vitro than dimethomorph (EC50 = 0.1331 μg mL-1 ) and comparable to oxathiapiprolin (EC50 = 0.0042 μg mL-1 ). Oxime ester derivatives showed significantly reduced activities compared with oxime ether derivatives. Most of these derivatives showed broad-spectrum fungicidal activity against the other eight kinds of fungi. Moreover, four derivatives exhibited good antifungal activities in vivo against Phytophthora capsici, Pseudoperonospora cubensis, and Phytophthora infestans. The hyphae morphology study showed that compound 10d might cause mycelial abnormalities of Phytophthora capsici. CONCLUSION The activity of 10b against Phytophthora infestans was better than that of mandipropamid, and compound 10d exhibited higher fungicidal activities against Pseudoperonospora cubensis and Phytophthora infestans than mandipropamid. These two derivatives emerged as promising candidates for antifungal drugs. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xing-Jie Peng
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Xue-Rong Tian
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Shu-Jing Yu
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Tong-Tong Zhao
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Qiang Bian
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Wei-Guang Zhao
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
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Jiao Q, Deng J, Zhao X, Yao X, Li M, Pei Z, Li X, Jiang X, Zhang F. Physiological and biochemical regulation of tobacco by oxathiapiprolin under Phytophthora nicotianae infection. PHYSIOLOGIA PLANTARUM 2023; 175:e13891. [PMID: 36917080 DOI: 10.1111/ppl.13891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
As a fungicide, oxathiapiprolin has excellent effects on diseases caused by oomycetes. Fungicides generally protect crops by inhibiting pathogens, but little research has addressed the effects of fungicides on crops. This study combined transcriptomic and metabolomic analyses to systematically analyze the physiological regulatory mechanisms of oxathiapiprolin on tobacco under Phytophthora nicotianae infection. The results showed that under P. nicotianae infection, tobacco's photosynthetic rate and antioxidant enzyme activity increased after the application of oxathiapiprolin. Omics results showed that the genes related to carbon metabolism, disease-resistant proteins, and amino acid synthesis were highly expressed, and the amino acid content increased in tobacco leaves. This study is the first comprehensive investigation of the physiological regulatory effects of oxathiapiprolin on tobacco in response to P. nicotianae infection. These findings provide a basis for the balance between regulating tobacco growth and development and enhancing disease resistance under the stimulation of oxathiapiprolin and provide new research and development opportunities for identifying new disease-resistance genes and the development of high-yielding disease-resistant crop varieties.
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Affiliation(s)
- Qin Jiao
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
| | - Jiahui Deng
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
| | - Xiaoyan Zhao
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
| | - Xiangfeng Yao
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
| | - Min Li
- China Tobacco Hebei Industrial Co., Ltd, ShiJiazhuang, China
| | | | - Xiangdong Li
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
| | - Xingyin Jiang
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
| | - Fengwen Zhang
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
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Zhao Z, Fan J, Yang P, Wang Z, Opiyo SO, Mackey D, Xia Y. Involvement of Arabidopsis Acyl Carrier Protein 1 in PAMP-Triggered Immunity. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2022; 35:681-693. [PMID: 35343247 DOI: 10.1094/mpmi-02-22-0049-r] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Plant fatty acids (FAs) and lipids are essential in storing energy and act as structural components for cell membranes and signaling molecules for plant growth and stress responses. Acyl carrier proteins (ACPs) are small acidic proteins that covalently bind the fatty acyl intermediates during the elongation of FAs. The Arabidopsis thaliana ACP family has eight members. Through reverse genetic, molecular, and biochemical approaches, we have discovered that ACP1 localizes to the chloroplast and limits the magnitude of pattern-triggered immunity (PTI) against the bacterial pathogen Pseudomonas syringae pv. tomato. Mutant acp1 plants have reduced levels of linolenic acid (18:3), which is the primary precursor for biosynthesis of the phytohormone jasmonic acid (JA), and a corresponding decrease in the abundance of JA. Consistent with the known antagonistic relationship between JA and salicylic acid (SA), acp1 mutant plants also accumulate a higher level of SA and display corresponding shifts in JA- and SA-regulated transcriptional outputs. Moreover, methyl JA and linolenic acid treatments cause an apparently enhanced decrease of resistance against P. syringae pv. tomato in acp1 mutants than that in WT plants. The ability of ACP1 to prevent this hormone imbalance likely underlies its negative impact on PTI in plant defense. Thus, ACP1 links FA metabolism to stress hormone homeostasis to be negatively involved in PTI in Arabidopsis plant defense. [Formula: see text] Copyright © 2022 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Affiliation(s)
- Zhenzhen Zhao
- Department of Plant Pathology, The Ohio State University, 2021 Coffey Road, Columbus, OH 43210, U.S.A
| | - Jiangbo Fan
- Department of Plant Pathology, The Ohio State University, 2021 Coffey Road, Columbus, OH 43210, U.S.A
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai, 200240, China
| | - Piao Yang
- Department of Plant Pathology, The Ohio State University, 2021 Coffey Road, Columbus, OH 43210, U.S.A
| | - Zonghua Wang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Stephen Obol Opiyo
- Department of Plant Pathology, The Ohio State University, 2021 Coffey Road, Columbus, OH 43210, U.S.A
| | - David Mackey
- Department of Horticulture and Crop Science, The Ohio State University, Columbus, OH 43210, U.S.A
| | - Ye Xia
- Department of Plant Pathology, The Ohio State University, 2021 Coffey Road, Columbus, OH 43210, U.S.A
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Ren X, Wang J, Zhu F, Wang Z, Mei J, Xie Y, Liu T, Ye X. β-aminobutyric acid (BABA)-induced resistance to tobacco black shank in tobacco (Nicotiana tabacum L.). PLoS One 2022; 17:e0267960. [PMID: 35679273 PMCID: PMC9182692 DOI: 10.1371/journal.pone.0267960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 04/20/2022] [Indexed: 11/24/2022] Open
Abstract
Tobacco black shank is a kind of soil-borne disease caused by the Oomycete Phytophthora parasitica. This disease is one of the most destructive diseases to tobacco (Nicotiana tabacum L.) growth worldwide. At present, various measures have been taken to control this disease, but they still have different challenges and limitations. Studies have shown that β-aminobutyric acid (BABA), a nonprotein amino acid, can enhance disease resistance in plants against different varieties of pathogens. However, it is unclear whether BABA can induce plants to resist Phytophthora parasitica infection. Therefore, this study aims to explore the effect and related mechanism of BABA against tobacco black shank. Our results showed that 5 mmol.L-1 BABA had an obvious anti-inducing effect on the pathogenic fungus and could effectively inhibit the formation of dark spots in the stems. The results also showed that a large amount of callose deposition was observed in BABA-treated tobacco. Furthermore, the application of BABA induced the accumulation of H2O2 in tobacco and effectively regulated the homeostasis of reactive oxygen in tobacco plants, reducing the toxicity of H2O2 to plants while activating the defense system. In addition, BABA spray treatment could induce an increase in the concentrations of salicylic acid (SA) and jasmonic acid-isoleucine (JA-Ile) in tobacco, and the gene expression results confirmed that BABA upregulated the expression of SA-related genes (PR1, PR2 and PR5), JA-related genes (PDF1.2) and ET-related genes (EFE26 and ACC oxidase) in tobacco plants. Taken together, BABA could activate tobacco resistance to black shank disease by increasing H2O2 accumulation, callose deposition, plant hormone (SA and JA-Ile) production, and SA-, JA-, and ET- signaling pathways.
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Affiliation(s)
- Xiyue Ren
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
- National-Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
| | - Jianjun Wang
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Faliang Zhu
- Yunnan Tobacco Co., Ltd., Kunming Branch, Kunming, China
| | - Zhijiang Wang
- Yunnan Tobacco Co., Ltd., Kunming Branch, Kunming, China
| | - Jian Mei
- Yunnan Tobacco Co., Ltd., Kunming Branch, Kunming, China
| | - Yonghui Xie
- Yunnan Tobacco Co., Ltd., Kunming Branch, Kunming, China
| | - Tao Liu
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
- National-Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
| | - Xianwen Ye
- Yunnan Tobacco Co., Ltd., Kunming Branch, Kunming, China
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Tian X, Peng X, Zhao T, Bian Q, Zhao W. Design, Synthesis, and Fungicidal Activities of Novel Ethylenediamine Bridged Thiazole Derivatives Containing Oxime Ether or Oxime Ester Moieties. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xue‐Rong Tian
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento‐Organic Chemistry, College of Chemistry Nankai University Tianjin China
| | - Xing‐Jie Peng
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento‐Organic Chemistry, College of Chemistry Nankai University Tianjin China
| | - Tong‐Tong Zhao
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento‐Organic Chemistry, College of Chemistry Nankai University Tianjin China
| | - Qiang Bian
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento‐Organic Chemistry, College of Chemistry Nankai University Tianjin China
| | - Wei‐Guang Zhao
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento‐Organic Chemistry, College of Chemistry Nankai University Tianjin China
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Bian Q, Zhao RQ, Peng XJ, Gao LJ, Zhou GN, Yu SJ, Zhao WG. Design, Synthesis, and Fungicidal Activities of Novel Piperidyl Thiazole Derivatives Containing Oxime Ether or Oxime Ester Moieties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:3848-3858. [PMID: 33780242 DOI: 10.1021/acs.jafc.0c07581] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
To explore the influence of the positions of the two nitrogen atoms on the thiazole ring and the isoxazoline ring on the activity, a series of novel piperidyl thiazole derivatives containing oxime ether and oxime ester moieties with two nitrogen atoms on the same or opposite sides have been designed, synthesized, and first evaluated for their fungicidal activities against Phytophthora capsici in vitro. The bioassay results showed that the target compounds possessed moderate to good fungicidal activities against P. capsici, among which oxime ether compound 11b shows the highest fungicidal activity in vitro (EC50 = 0.0104 μg/mL) which is higher than dimethomorph (EC50 = 0.1148 μg/mL) and diacetylenyl amide (EC50 = 0.040 μg/mL). Compared with oxime ether compounds (the two nitrogen atoms are on the opposite sides), the activities of oxime ester compounds were significantly reduced. It is different from the commercial fungicide fluoxapiprolin, and the activities of the compounds with the two nitrogen atoms on the same side were significantly reduced compared to the compounds with the two nitrogen atoms on the opposite sides. Moreover, compounds 11b, 11d, 11e, and 11g showed moderate to good antifungal activities in vivo against Phytophthora capsici, Pseudoperonospora cubensis, and Phytophthora infestans. Scanning electron microscopy of compound 11b on the hyphae morphology showed that compound 11b might cause mycelial abnormalities of P. capsici.
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Affiliation(s)
- Qiang Bian
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Rui-Qi Zhao
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xing-Jie Peng
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Li-Jie Gao
- College of Animal Science & Technology, Forestry College, Hebei Agricultural University, Baoding 071000, China
| | - Guo-Na Zhou
- College of Animal Science & Technology, Forestry College, Hebei Agricultural University, Baoding 071000, China
| | - Shu-Jing Yu
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Wei-Guang Zhao
- National Pesticide Engineering Research Center (Tianjin), State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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Gao Y, Zhao X, Sun X, Wang Z, Zhang J, Li L, Shi H, Wang M. Enantioselective Detection, Bioactivity, and Degradation of the Novel Chiral Fungicide Oxathiapiprolin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:3289-3297. [PMID: 33710880 DOI: 10.1021/acs.jafc.0c04163] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Oxathiapiprolin is a novel chiral piperidine thiazole isooxazoline fungicide that contains a pair of enantiomers. An effective analytical method was established for the enantioselective detection of oxathiapiprolin in fruit, vegetable, and soil samples using ultraperformance liquid chromatography-tandem triple quadrupole mass spectrometry. The optimal enantioseparation was achieved on a Chiralpak IG column at 35 °C using acetonitrile and 0.1% formic acid aqueous solution (90:10, v/v) as the mobile phase. The absolute configuration of the oxathiapiprolin enantiomers was identified with the elution order of R-(-)-oxathiapiprolin and S-(+)-oxathiapiprolin by electron circular dichroism spectra. The bioactivity of R-(-)-oxathiapiprolin was 2.49 to 13.30-fold higher than that of S-(+)-oxathiapiprolin against six kinds of oomycetes. The molecular docking result illuminated the mechanism of enantioselectivity in bioactivity. The glide score (-8.00 kcal/mol) for the R-enantiomer was better with the binding site in Phytophthora capsici than the S-enantiomer (-7.50 kcal/mol). Enantioselective degradation in tomato and pepper under the field condition was investigated and indicated that R-(-)-oxathiapiprolin was preferentially degraded. The present study determines the enantioselectivity of oxathiapiprolin about enantioselective detection, bioactivity, and degradation for the first time. The R-enantiomer will be a better choice than racemic oxathiapiprolin to enhance the bioactivity and reduce the pesticide residues at a lower application rate.
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Affiliation(s)
- Yingying Gao
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China
| | - Xuejun Zhao
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaofang Sun
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhen Wang
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China
| | - Jing Zhang
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China
| | - Lianshan Li
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China
| | - Haiyan Shi
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China
| | - Minghua Wang
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China
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