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Tao ZS, Hu XF, Wu XJ, Wang ZY, Shen CL. Protocatechualdehyde inhibits iron overload-induced bone loss by inhibiting inflammation and oxidative stress in senile rats. Int Immunopharmacol 2024; 141:113016. [PMID: 39182269 DOI: 10.1016/j.intimp.2024.113016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 07/05/2024] [Accepted: 08/22/2024] [Indexed: 08/27/2024]
Abstract
The accumulating evidence has made it clear that iron overload is a crucial mechanism in bone loss. Protocatechualdehyde (PCA) has also been used to prevent osteoporosis in recent years. Whether PCA can reverse the harmful effects of iron overload on bone mass in aged rats is still unknown. Therefore, this study aimed to assess the role of PCA in iron overload-induced bone loss in senile rats. In the aged rat model, we observed that iron overload affects bone metabolism and bone remodeling, manifested by bone loss and decreased bone mineral density. The administration of PCA effectively mitigated the detrimental effects caused by iron overload, and concomitant reduction in MDA serum levels and elevation of SOD were noted. In addition, PCA-treated rats were observed to have significantly increased bone mass and elevated expression of SIRT3,BMP2,SOD2 and reduced expression of TNF-α in bone tissue. We also observed that PCA was able to reduce oxidative stress and inflammation and restore the imbalance in bone metabolism. When MC3T3-E1 and RAW264.7 cells induced osteoblast and osteoclasts differentiation, PCA intervention could significantly recover the restriction of osteogenic differentiation and up-regulation of osteoclast differentiation treated by iron overload. Further, by detecting changes in ROS, SOD, MDA, expression of SIRT3 and mitochondrial membrane potentials, we confirm that the damage caused to cells by iron overload is associated with decreased SIRT3 activity, and that 3-TYP have similar effects on oxidative stress caused by FAC. In conclusion, PCA can resist iron overload-induced bone damage by improving SIRT3 activity, anti-inflammatory and anti-oxidative stress.
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Affiliation(s)
- Zhou-Shan Tao
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu 241001, Anhui, PR China; Anhui Province Key Laboratory of Non-coding RNA Basic and Clinical Transformation, No. 2, Zhe Shan Xi Road, Wuhu 241001, Anhui, PR China; Department of Spinal Surgery, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Shushan District, Hefei 230022, Anhui, PR China
| | - Xu-Feng Hu
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu 241001, Anhui, PR China
| | - Xing-Jing Wu
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu 241001, Anhui, PR China
| | - Zheng-Yu Wang
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu 241001, Anhui, PR China.
| | - Cai-Liang Shen
- Department of Spinal Surgery, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Shushan District, Hefei 230022, Anhui, PR China.
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2
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Xia Y, Yan S, Wei H, Zhang H, Hou K, Chen G, Cao R, Zhu M. Multifunctional Porous Bilayer Artificial Skin for Enhanced Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:34578-34590. [PMID: 38946497 DOI: 10.1021/acsami.4c05074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Meeting the exacting demands of wound healing encompasses rapid coagulation, superior exudate absorption, high antibacterial efficacy, and imperative support for cell growth. In this study, by emulating the intricate structure of natural skin, we prepare a multifunctional porous bilayer artificial skin to address these critical requirements. The bottom layer, mimicking the dermis, is crafted through freeze-drying a gel network comprising carboxymethyl chitosan (CMCs) and gelatin (GL), while the top layer, emulating the epidermis, is prepared via electrospinning poly(l-lactic acid) (PLLA) nanofibers. With protocatechuic aldehyde and gallium ion complexation (PA@Ga) as cross-linking agents, the bottom PA@Ga-CMCs/GL layer featured an adjustable pore size (78-138 μm), high hemostatic performance (67s), and excellent bacterial inhibition rate (99.9%), complemented by an impressive liquid-absorbing capacity (2000% swelling rate). The top PLLA layer, with dense micronanostructure and hydrophobic properties, worked as a shield to effectively thwarted liquid or bacterial penetration. Furthermore, accelerated wound closure, reduced inflammatory responses, and enhanced formation of hair follicles and blood vessels are achieved by the porous artificial skin covered on the surface of wound. Bilayer artificial skin integrates the advantages of nanofibers and freeze-drying porous materials to effectively replicate the protective properties of the epidermal layer of the skin, as well as the cell migration and tissue regeneration of the dermis. This bioabsorbable artificial skin demonstrates structural and functional comparability to real skin, which would advance the field of wound care through its multifaceted capabilities.
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Affiliation(s)
- Yuhan Xia
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Sai Yan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Huidan Wei
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Han Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Kai Hou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Guoyin Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Ran Cao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, P. R. China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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3
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Yuan C, Wang Y, Zhang L, Wang D. Procatechuic acid and protocatechuic aldehyde increase survival of Caenorhabditis elegans after fungal infection and inhibit fungal virulence. Front Pharmacol 2024; 15:1396733. [PMID: 38841375 PMCID: PMC11150623 DOI: 10.3389/fphar.2024.1396733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 04/30/2024] [Indexed: 06/07/2024] Open
Abstract
Protocatechuic acid (PCA) and protocatechuic aldehyde (PAL) are important phenolic compounds in plants. We here investigated their possible beneficial effect against fungal infection and the underlying mechanism. The model animal of Caenorhabditis elegans was used as host, and Candida albicans was used as fungal pathogen. The nematodes were first infected with C. albicans, and the PCA and PAL treatment were then performed. Post-treatment with 10-100 μM PCA and PAL suppressed toxicity of C. albicans infection in reducing lifespan. Accompanied with this beneficial effect, treatment with 10-100 μM PCA and PAL inhibited C. albicans accumulation in intestinal lumen. In addition, treatment with 10-100 μM PCA and PAL suppressed the increase in expressions of antimicrobial genes caused by C. albicans infection. The beneficial effect of PCA and PAL against C. albicans infection depended on p38 MAPK and insulin signals. Moreover, although treatment with 10-100 μM PCA and PAL could not exhibit noticeable antifungal activity, PCA and PAL treatment obviously suppressed biofilm formation, inhibited hyphal growth, and reduced expressions of virulence genes (ALS3, CaVps34, Vma7, Vac1, and/or HWP1) related to biofilm formation and hyphal growth in C. albicans. Therefore, our data demonstrated the potential of PCA and PAL post-treatment against fungal infection and fungal virulence.
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Affiliation(s)
- Chunyan Yuan
- Department of Gynaecology and Obstetrics, Zhongda Hospital, Southeast University, Nanjing, China
| | - Yuxing Wang
- Deaprtment of Biochemistry and Molecrla Biology, School of Medicine, Southeast University, Nanjing, China
| | - Le Zhang
- Deaprtment of Biochemistry and Molecrla Biology, School of Medicine, Southeast University, Nanjing, China
| | - Dayong Wang
- Deaprtment of Biochemistry and Molecrla Biology, School of Medicine, Southeast University, Nanjing, China
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4
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Hu B, Ouyang Y, Zhao T, Wang Z, Yan Q, Qian Q, Wang W, Wang S. Antioxidant Hydrogels: Antioxidant Mechanisms, Design Strategies, and Applications in the Treatment of Oxidative Stress-Related Diseases. Adv Healthc Mater 2024; 13:e2303817. [PMID: 38166174 DOI: 10.1002/adhm.202303817] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/23/2023] [Indexed: 01/04/2024]
Abstract
Oxidative stress is a biochemical process that disrupts the redox balance due to an excess of oxidized substances within the cell. Oxidative stress is closely associated with a multitude of diseases and health issues, including cancer, diabetes, cardiovascular diseases, neurodegenerative disorders, inflammatory conditions, and aging. Therefore, the developing of antioxidant treatment strategies has emerged as a pivotal area of medical research. Hydrogels have garnered considerable attention due to their exceptional biocompatibility, adjustable physicochemical properties, and capabilities for drug delivery. Numerous antioxidant hydrogels have been developed and proven effective in alleviating oxidative stress. In the pursuit of more effective treatments for oxidative stress-related diseases, there is an urgent need for advanced strategies for the fabrication of multifunctional antioxidant hydrogels. Consequently, the authors' focus will be on hydrogels that possess exceptional reactive oxygen species and reactive nitrogen species scavenging capabilities, and their role in oxidative stress therapy will be evaluated. Herein, the antioxidant mechanisms and the design strategies of antioxidant hydrogels and their applications in oxidative stress-related diseases are discussed systematically in order to provide critical insights for further advancements in the field.
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Affiliation(s)
- Bin Hu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai, 200093, China
| | - Yongliang Ouyang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai, 200093, China
| | - Tong Zhao
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai, 200093, China
| | - Zhengyue Wang
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, 999077, China
| | - Qiling Yan
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai, 200093, China
| | - Qinyuan Qian
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai, 200093, China
| | - Wenyi Wang
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, 999077, China
| | - Shige Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai, 200093, China
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5
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Wei-Ye L, Hong-Bo G, Rui-Heng Y, Ai-Guo X, Jia-Chen Z, Zhao-Qian Y, Wen-Jun H, Xiao-Dan Y. UPLC-ESI-MS/MS-based widely targeted metabolomics reveals differences in metabolite composition among four Ganoderma species. Front Nutr 2024; 11:1335538. [PMID: 38562486 PMCID: PMC10982346 DOI: 10.3389/fnut.2024.1335538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 03/07/2024] [Indexed: 04/04/2024] Open
Abstract
The Chinese name "Lingzhi" refers to Ganoderma genus, which are increasingly used in the food and medical industries. Ganoderma species are often used interchangeably since the differences in their composition are not known. To find compositional metabolite differences among Ganoderma species, we conducted a widely targeted metabolomics analysis of four commonly used edible and medicinal Ganoderma species based on ultra performance liquid chromatography-electrospray ionization-tandem mass spectrometry. Through pairwise comparisons, we identified 575-764 significant differential metabolites among the species, most of which exhibited large fold differences. We screened and analyzed the composition and functionality of the advantageous metabolites in each species. Ganoderma lingzhi advantageous metabolites were mostly related to amino acids and derivatives, as well as terpenes, G. sinense to terpenes, and G. leucocontextum and G. tsugae to nucleotides and derivatives, alkaloids, and lipids. Network pharmacological analysis showed that SRC, GAPDH, TNF, and AKT1 were the key targets of high-degree advantage metabolites among the four Ganoderma species. Analysis of Gene Ontology and Kyoto Encyclopedia of Genes and Genomes demonstrated that the advantage metabolites in the four Ganoderma species may regulate and participate in signaling pathways associated with diverse cancers, Alzheimer's disease, and diabetes. Our findings contribute to more targeted development of Ganoderma products in the food and medical industries.
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Affiliation(s)
- Liu Wei-Ye
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, China
| | - Guo Hong-Bo
- College of Life Engineering, Shenyang Institute of Technology, Fushun, China
| | - Yang Rui-Heng
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Xu Ai-Guo
- Alpine Fungarium, Tibet Plateau Institute of Biology, Lasa, China
| | - Zhao Jia-Chen
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, China
| | - Yang Zhao-Qian
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, China
| | - Han Wen-Jun
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, China
| | - Yu Xiao-Dan
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, China
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Li P, Wang S, Liu M, Dai X, Shi H, Zhou W, Sheng S, Wu F. Antibacterial Activity and Mechanism of Three Root Exudates from Mulberry Seedlings against Ralstonia pseudosolanacearum. PLANTS (BASEL, SWITZERLAND) 2024; 13:482. [PMID: 38498445 PMCID: PMC10892386 DOI: 10.3390/plants13040482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 03/20/2024]
Abstract
Bacterial wilt is a significant soil-borne disease that poses a threat to mulberry production yield and quality of agricultural production worldwide. However, the disease resistance mechanisms dependent on root exudates are not well understood. In this present study, we investigated the antibacterial mechanisms of the main active substances (erucamide, oleamide, and camphor bromide) present in mulberry root exudates (MRE) against Ralstonia pseudosolanacearum (Rp), the causal agent of bacterial wilt. Our findings revealed that these three active substances inhibited the growth activity of Rp by affecting the cell morphology and extracellular polysaccharide content, as well as triggering a burst of reactive oxygen species. The active substances induced oxidative stress, leading to a decrease in Rp growth. Additionally, the expression levels of key genes in the hrp gene cluster (hrpB, hrpX, and hrpF) and other virulence-related genes (such as ripAW, ripAE, Rs5-4819, Rs5-4374, ace, egl3, and pehB) were significantly reduced upon treatment with the active substances. Further pathogenicity experiments demonstrated that root exudates (at a concentration of 1.5 mg·mL-1) delayed or slowed down the occurrence of bacterial wilt in mulberry. These findings provide valuable insight into the antimicrobial mechanisms of MRE against Rp and lay a theoretical foundation for the development and application of biocontrol agents to control mulberry bacterial wilt.
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Affiliation(s)
- Ping Li
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (P.L.); (S.W.); (M.L.); (X.D.); (H.S.); (W.Z.); (S.S.)
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, The Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212100, China
| | - Siyi Wang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (P.L.); (S.W.); (M.L.); (X.D.); (H.S.); (W.Z.); (S.S.)
| | - Mengyuan Liu
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (P.L.); (S.W.); (M.L.); (X.D.); (H.S.); (W.Z.); (S.S.)
| | - Xue Dai
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (P.L.); (S.W.); (M.L.); (X.D.); (H.S.); (W.Z.); (S.S.)
| | - Huicong Shi
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (P.L.); (S.W.); (M.L.); (X.D.); (H.S.); (W.Z.); (S.S.)
| | - Weihong Zhou
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (P.L.); (S.W.); (M.L.); (X.D.); (H.S.); (W.Z.); (S.S.)
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, The Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212100, China
| | - Sheng Sheng
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (P.L.); (S.W.); (M.L.); (X.D.); (H.S.); (W.Z.); (S.S.)
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, The Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212100, China
| | - Fuan Wu
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (P.L.); (S.W.); (M.L.); (X.D.); (H.S.); (W.Z.); (S.S.)
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, The Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212100, China
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7
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Xiang K, Chen J, Guo J, Li G, Kang Y, Wang C, Jiang T, Zhang M, Jiang G, Yuan M, Xiang X, Xu Y, Ren S, Xiong H, Xu X, Li W, Yang X, Chen Z. Multifunctional ADM hydrogel containing endothelial cell-exosomes for diabetic wound healing. Mater Today Bio 2023; 23:100863. [PMID: 38089434 PMCID: PMC10711188 DOI: 10.1016/j.mtbio.2023.100863] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/02/2023] [Accepted: 11/10/2023] [Indexed: 07/02/2024] Open
Abstract
Non-healing wound, with limited treatment options, remains a prevalent complication of diabetes mellitus. The underlying causes wherein include oxidative stress injury, bacterial infection, cellular dysfunction, and persistent inflammation. Acellular Dermal Matrix (ADM), a wound dressing composed of natural extracellular matrix and abundant bioactive factors, has been successfully developed to treat various wounds, including burns and diabetic ulcers. Protocatechualdehyde (PA) & trivalent iron ion (Fe3+) complex (Fe3+@PA) exhibits potential antioxidant and antibacterial properties. In this study, we developed a dual hydrogel network by combining Fe3+@PA complex-modified ADM with light-cured gelatin (GelMA), supplemented with exosomes derived from human umbilical vein endothelial cells (HUVEC-Exos), to create an ADM composite hydrogel system (ADM-Fe3+@PA-Exos/GelMA) with antioxidant, antibacterial, and cell-promoting functions for diabetic wound treatment. Through in vitro experiments, we investigated the biosafety, antioxidant and antibacterial properties of ADM composite hydrogel. Furthermore, we examined the protective effects of ADM composite hydrogel on diabetic wound. The above experiments collectively demonstrate that our ADM-Fe3+@PA-Exos/GelMA hydrogel promotes diabetic wound healing by eliminating bacterial infection, reduced the reactive oxygen species (ROS) levels, protecting cells against oxidative stress damage, promotingcollagen deposition and angiogenesis, which provides a promising strategy to optimize ADM for diabetic wound treatment.
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Affiliation(s)
- Kaituo Xiang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, 325027, China
| | - Jing Chen
- Department of Dermatology, Wuhan No.1 Hospital, Wuhan, 430000, Hubei, China
- Hubei Province & Key Laboratory of Skin Infection and Immunity, Wuhan No.1 Hospital, Wuhan, 430022, Hubei, China
| | - Jiahe Guo
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Gongchi Li
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yu Kang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Cheng Wang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Tao Jiang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Maojie Zhang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Guoyong Jiang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Meng Yuan
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xuejiao Xiang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yingpeng Xu
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Sen Ren
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Hewei Xiong
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiang Xu
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Wenqing Li
- Department of Hand and Foot Surgery, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, 518052, China
| | - Xiaofan Yang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zhenbing Chen
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
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8
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Zhang L, Li Y, Yang W, Lin L, Li J, Liu D, Li C, Wu J, Li Y. Protocatechuic aldehyde increases pericyte coverage and mitigates pericyte damage to enhance the atherosclerotic plaque stability. Biomed Pharmacother 2023; 168:115742. [PMID: 37871558 DOI: 10.1016/j.biopha.2023.115742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/15/2023] [Accepted: 10/16/2023] [Indexed: 10/25/2023] Open
Abstract
Pericyte dysfunction and loss contribute substantially to the destabilization and rupture of atherosclerotic plaques. Protocatechuic aldehyde (PCAD), a natural polyphenol, exerts anti-atherosclerotic effects. However, the effects and mechanisms of this polyphenol on pericyte recruitment, coverage, and pericyte function remain unknown. We here treated apolipoprotein E-deficient mice having high-fat diet-induced atherosclerosis with PCAD. PCAD achieved therapeutic effects similar to rosuvastatin in lowering lipid levels and thus preventing atherosclerosis progression. With PCAD administration, plaque phenotype exhibited higher stability with markedly reduced lesion vulnerability, which is characterized by reduced lipid content and macrophage accumulation, and a consequent increase in collagen deposition. PCAD therapy increased pericyte coverage in the plaques, reduced VEGF-A production, and inhibited intraplaque neovascularization. PCAD promoted pericyte proliferation, adhesion, and migration to mitigate ox-LDL-induced pericyte dysfunction, which thus maintained the capillary network structure and stability. Furthermore, TGFBR1 silencing partially reversed the protective effect exerted by PCAD on human microvascular pericytes. PCAD increased pericyte coverage and impeded ox-LDL-induced damages through TGF-β1/TGFBR1/Smad2/3 signaling. All these novel findings indicated that PCAD increases pericyte coverage and alleviates pericyte damage to improve the stability of atherosclerotic plaques, which is accomplished by regulating TGF-β1/TGFBR1/Smad2/3 signaling in pericytes.
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Affiliation(s)
- Lei Zhang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Yuan Li
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Wenqing Yang
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Lin Lin
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Jie Li
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Dekun Liu
- Shool of Acupuncture-Moxibustion and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Chao Li
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Jibiao Wu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Yunlun Li
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China; Department of Cardiovascular, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Shandong Provincial Engineering Laboratory of Traditional Chinese Medicine Precision Therapy for Cardiovascular Diseases, Jinan 250355, China.
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9
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Du Y, Bai Y, Lang S, Xing D, Ma L, Li K, Peng J, Li X, Liu G. Gelatin Sponges with a Uniform Interoperable Pore Structure and Biodegradability for Liver Injury Hemostasis and Tissue Regeneration. Biomacromolecules 2023; 24:5313-5327. [PMID: 37725632 DOI: 10.1021/acs.biomac.3c00803] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Developing a hemostatic sponge that can effectively control bleeding from visceral injuries while guiding in situ tissue regeneration in incompressible wounds remains a challenge. Most of the existing hemostatic sponges degrade slowly, are relatively single-functioning, and cannot cope with complex environments. Herein, a biodegradable rapidly hemostatic sponge (GPZ) was created by dual-dynamic-bond cross-linking among Zn2+, protocatechualdehyde (PA)-containing catechol and aldehyde groups, and gelatin. GPZ had a uniformly distributed interconnected pore structure with excellent fluid absorption. It could effectively absorb the oozing blood and increase the blood concentration while stimulating platelet activation and accelerating blood coagulation. Compared to commercial hemostats, GPZ treatment significantly accelerated hemostasis in the rat liver defect model (∼0.33 min, ≥50% reduction in the hemostatic time) and in the rabbit liver defect model (∼1.02 min, ≥60% reduction in the hemostatic time). Additionally, GPZ had excellent antibacterial and antioxidant properties that effectively protected the wound from infection and excessive inflammation. In the liver regeneration model, GPZ significantly increased the rate of hepatic tissue repair and promoted rapid functional recovery without complications and adverse reactions. Overall, we designed a simple and effective biodegradable rapid hemostatic sponge with good clinical translational potential for treating lethal incompressible bleeding and promoting wound healing.
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Affiliation(s)
- Yangrui Du
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Yangjing Bai
- West China School of Nursing, Sichuan University/Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Shiying Lang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Dandan Xing
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Li Ma
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Kaijun Li
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Jinyu Peng
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Xinyun Li
- Dazhou Hospital of Integrated Traditional Chinese and Western Medicine, Dazhou, Sichuan 635000, China
| | - Gongyan Liu
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
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10
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Ornelas García IG, Guerrero Barrera AL, Avelar González FJ, Chávez Vela NA, Gutiérrez Montiel D. Bougainvillea glabra Choisy (Nyctinaginacea): review of phytochemistry and antimicrobial potential. Front Chem 2023; 11:1276514. [PMID: 37927559 PMCID: PMC10620508 DOI: 10.3389/fchem.2023.1276514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 09/22/2023] [Indexed: 11/07/2023] Open
Abstract
The Bougainvillea glabra or bougainvillea is a climbing plant native from South America belonging to the Nyctaginaceae family. The bougainvillea is recognized worldwide for its horticultural importance, due to the color of its bracts, commonly known as "flowers," made up of bracts, which are the striking parts, and the true flowers, which are white and small. Bougainvillea is widely known in traditional medicine to treat respiratory diseases such as cough, asthma, and bronchitis, gastrointestinal diseases, also for its antibacterial and insecticidal capacity. The antimicrobial potential of the involucre of this plant has not been studied, despite research showing a high phytochemical presence of secondary metabolites such as alkanes, phenols, terpenes, and betalains. This review compiles information about the traditional uses of B. glabra, its botanical description, ecological relevance, phytochemistry, antimicrobial and antibiofilm activity, such as the toxicology of bracts and flowers.
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Affiliation(s)
- Ingrid G. Ornelas García
- Centro de Ciencias Básicas, Laboratorio de Biología Celular y Tisular, Departamento de Morfología, Universidad Autónoma de Aguascalientes (UAA), Aguascalientes, Mexico
| | - Alma L. Guerrero Barrera
- Centro de Ciencias Básicas, Laboratorio de Biología Celular y Tisular, Departamento de Morfología, Universidad Autónoma de Aguascalientes (UAA), Aguascalientes, Mexico
| | - Francisco J. Avelar González
- Centro de Ciencias Básicas, Laboratorio de Estudios Ambientales, Departamento de Fisiología y Farmacología, Universidad Autónoma de Aguascalientes (UAA), Aguascalientes, Mexico
| | - Norma A. Chávez Vela
- Laboratorio de Biotecnología, Centro de Ciencias Básicas, Departamento Ingeniería Bioquímica, Aguascalientes, Mexico
| | - Daniela Gutiérrez Montiel
- Centro de Ciencias Básicas, Laboratorio de Biología Celular y Tisular, Departamento de Morfología, Universidad Autónoma de Aguascalientes (UAA), Aguascalientes, Mexico
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11
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Purnomo JS, Victor H, Dikson, Cornelia M, Pinontoan R. Decolorization potential of malachite green by Ralstonia mannitolilytica isolated from Indonesian cassava-based fermented food tapai. Arch Microbiol 2023; 205:339. [PMID: 37747508 DOI: 10.1007/s00203-023-03678-7] [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: 03/14/2023] [Revised: 08/30/2023] [Accepted: 09/06/2023] [Indexed: 09/26/2023]
Abstract
Pollution due to textile dye effluent mishandling is hazardous to ecosystems and to the living beings inhabiting them. This can cause retarded photosynthesis, disrupted fish day/night cycles, unbalanced bacterial populations, and decreased oxygen concentration in contaminated water, leading to low habitability. In this study, we aimed to isolate and characterize the microorganisms found in Indonesian cassava-based fermented food tapai starter cultures as a source of potential microbes for the biological remediation of textile dye pollutants. Microorganisms in the tapai starter culture were screened for their decolorization activity via spread-culture inoculation on a solid growth medium supplemented with textile dyes. Isolated microorganisms were selected based on their ability to secrete textile dye-decolorizing extracellular enzymes via increased light penetration after incubation of the cell-free supernatant (CFS) containing extracellular enzymes in textile dye solutions. Isolate JSP1 was the only bacterium capable of producing malachite green (MG)-decolorizing extracellular enzymes, which enabled it to survive and decolorize MG up to 375 ppm. Moreover, isolate JSP1 CFS was able to optimally decolorize 75% of MG at 100 ppm, but its activity was diminished at concentrations > 350 ppm. Colony and cellular morphology, biochemistry, and 16S rRNA tests revealed that the isolate was of Ralstonia mannitolilytica. Therefore, R. mannitolilytica isolate JSP1 may be a potential bioremediation agent for MG.
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Affiliation(s)
- Jonathan Suciono Purnomo
- Department of Biology, Universitas Pelita Harapan, Jl. MH Thamrin 1100 Blvd, Tangerang, Indonesia
| | - Hans Victor
- Department of Biology, Universitas Pelita Harapan, Jl. MH Thamrin 1100 Blvd, Tangerang, Indonesia
| | - Dikson
- Department of Biology, Universitas Pelita Harapan, Jl. MH Thamrin 1100 Blvd, Tangerang, Indonesia
| | - Melanie Cornelia
- Department of Food Technology, Universitas Pelita Harapan, Jl. MH Thamrin 1100 Blvd, Tangerang, Indonesia
| | - Reinhard Pinontoan
- Department of Biology, Universitas Pelita Harapan, Jl. MH Thamrin 1100 Blvd, Tangerang, Indonesia.
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12
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Liao S, Tian L, Qi Q, Hu L, Wang M, Gao C, Cui H, Gai Z, Gong G. Transcriptome Analysis of Protocatechualdehyde against Listeria monocytogenes and Its Effect on Chicken Quality Characteristics. Foods 2023; 12:2625. [PMID: 37444363 DOI: 10.3390/foods12132625] [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: 06/06/2023] [Revised: 06/29/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023] Open
Abstract
The development of natural antimicrobial agents offers new strategies for food preservation due to the health hazards associated with the spoilage of meat products caused by microbial contamination. In this paper, the inhibitory mechanism of protocatechualdehyde (PCA) on Listeria monocytogenes was described, and its effect on the preservation of cooked chicken breast was evaluated. The results showed that the minimal inhibitory concentration (MIC) of PCA on L. monocytogenes was 0.625 mg/mL. Secondly, PCA destroyed the integrity of the L. monocytogenes cell membrane, which was manifested as a decrease in membrane hyperpolarization, intracellular ATP level, and intracellular pH value. Field emission gun scanning electron microscopy (FEG-SEM) observed a cell membrane rupture. Transcriptome analysis showed that PCA may inhibit cell growth by affecting amino acid, nucleotide metabolism, energy metabolism, and the cell membrane of L. monocytogenes. Additionally, it was discovered that PCA enhanced the color and texture of cooked chicken breast meat while decreasing the level of thiobarbituric acid active substance (TBARS). In conclusion, PCA as a natural antibacterial agent has a certain reference value in extending the shelf life of cooked chicken breast.
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Affiliation(s)
- Sichen Liao
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Lu Tian
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Qi Qi
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Lemei Hu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Minmin Wang
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Chang Gao
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Haoyue Cui
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Zhongchao Gai
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Guoli Gong
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
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13
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Fu Y, Shi Y, Wang L, Zhao Y, Wang R, Li K, Zhang S, Zha X, Wang W, Zhao X, Yang W. All-Natural Immunomodulatory Bioadhesive Hydrogel Promotes Angiogenesis and Diabetic Wound Healing by Regulating Macrophage Heterogeneity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206771. [PMID: 36862027 PMCID: PMC10161050 DOI: 10.1002/advs.202206771] [Citation(s) in RCA: 56] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 02/10/2023] [Indexed: 05/06/2023]
Abstract
Macrophages are highly heterogeneous and exhibit a diversity of functions and phenotypes. They can be divided into pro-inflammatory macrophages (M1) and anti-inflammatory macrophages (M2). Diabetic wounds are characterized by a prolonged inflammatory phase and difficulty in healing due to the accumulation of pro-inflammatory (M1) macrophages in the wound. Therefore, hydrogel dressings with macrophage heterogeneity regulation function hold great promise in promoting diabetic wound healing in clinical applications. However, the precise conversion of pro-inflammatory M1 to anti-inflammatory M2 macrophages by simple and biosafe approaches is still a great challenge. Here, an all-natural hydrogel with the ability to regulate macrophage heterogeneity is developed to promote angiogenesis and diabetic wound healing. The protocatechuic aldehyde hybridized collagen-based all-natural hydrogel exhibits good bioadhesive and antibacterial properties as well as reactive oxygen species scavenging ability. More importantly, the hydrogel is able to convert M1 macrophages into M2 macrophages without the need for any additional ingredients or external intervention. This simple and safe immunomodulatory approach shows great application potential for shortening the inflammatory phase of diabetic wound repair and accelerating wound healing.
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Affiliation(s)
- Ya‐Jun Fu
- College of Polymer Science and EngineeringSichuan UniversityChengdu610065P. R. China
| | - Yi‐Feng Shi
- Department of NeurosurgeryWest China HospitalSichuan UniversityChengdu610041P. R. China
| | - Li‐Ya Wang
- Department of NephrologyWest China HospitalSichuan UniversityChengdu610041P. R. China
| | - Yi‐Fan Zhao
- Department of OrthodonticsWest China Hospital of StomatologySichuan UniversityChengdu610032P. R. China
| | - Rao‐Kaijuan Wang
- Department of OrthodonticsWest China Hospital of StomatologySichuan UniversityChengdu610032P. R. China
| | - Kai Li
- Department of Thoracic OncologyWest China HospitalSichuan UniversityChengdu610041P. R. China
| | - Shu‐Ting Zhang
- College of Polymer Science and EngineeringSichuan UniversityChengdu610065P. R. China
| | - Xiang‐Jun Zha
- Laboratory of Liver TransplantationWest China HospitalSichuan UniversityChengdu610041P. R. China
| | - Wei Wang
- Department of NeurosurgeryWest China HospitalSichuan UniversityChengdu610041P. R. China
| | - Xing Zhao
- Department of NephrologyWest China HospitalSichuan UniversityChengdu610041P. R. China
| | - Wei Yang
- College of Polymer Science and EngineeringSichuan UniversityChengdu610065P. R. China
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14
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Shi H, Liu Y, Ding A, Wang W, Sun Y. Induced defense strategies of plants against Ralstonia solanacearum. Front Microbiol 2023; 14:1059799. [PMID: 36778883 PMCID: PMC9910360 DOI: 10.3389/fmicb.2023.1059799] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 01/05/2023] [Indexed: 01/27/2023] Open
Abstract
Plants respond to Ralstonia solanacearum infestation through two layers of immune system (PTI and ETI). This process involves the production of plant-induced resistance. Strategies for inducing resistance in plants include the formation of tyloses, gels, and callose and changes in the content of cell wall components such as cellulose, hemicellulose, pectin, lignin, and suberin in response to pathogen infestation. When R. solanacearum secrete cell wall degrading enzymes, plants also sense the status of cell wall fragments through the cell wall integrity (CWI) system, which activates deep-seated defense responses. In addition, plants also fight against R. solanacearum infestation by regulating the distribution of metabolic networks to increase the production of resistant metabolites and reduce the production of metabolites that are easily exploited by R. solanacearum. We review the strategies used by plants to induce resistance in response to R. solanacearum infestation. In particular, we highlight the importance of plant-induced physical and chemical defenses as well as cell wall defenses in the fight against R. solanacearum.
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Affiliation(s)
- Haoqi Shi
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong, China
- The Graduate School, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yong Liu
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Anming Ding
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong, China
| | - Weifeng Wang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong, China
| | - Yuhe Sun
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong, China
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15
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Liu Y, Wang L. Antibiofilm effect and mechanism of protocatechuic aldehyde against Vibrio parahaemolyticus. Front Microbiol 2022; 13:1060506. [PMID: 36439819 PMCID: PMC9684326 DOI: 10.3389/fmicb.2022.1060506] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 10/26/2022] [Indexed: 11/12/2022] Open
Abstract
This study investigated the effect of protocatechuic aldehyde (PCA) on Vibrio parahaemolyticus biofilm formation and its effects on gene expression. Crystal violet assay, metabolic activity assay, and fluorescence experiments were used to evaluate the antibiofilm activities of PCA and to reveal its possible antibiofilm mechanisms using transcriptomic analysis. The results indicated that the minimum antibacterial concentration of PCA against V. parahaemolyticus was 300 μg/mL. PCA (9.375 μg/mL) inhibited biofilm generation and adhesion of the mature biofilm. PCA (75 μg/mL) significantly reduced the metabolic viability of V. parahaemolyticus, reduced polysaccharide production, and inhibited cell surface flagella-mediated swimming and aggregation phenotypes. Meanwhile, transcriptome analysis showed that the key genes of V. parahaemolyticus expressed under PCA (75 μg/mL) inhibition were mainly related to biofilm formation (pfkA, galE, narL, and oppA), polysaccharide production and adhesion (IF, fbpA, and yxeM), and motility (cheY, flrC, and fliA). By regulating these key genes, PCA reduced biofilm formation, suppressed polysaccharide production and transport, and prevented the adhesion of V. parahaemolyticus, thereby reducing the virulence of V. parahaemolyticus. This study demonstrated that protocatechuic aldehyde can be used to control V. parahaemolyticus biofilm to ensure food safety.
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16
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Membrane damage mechanism of protocatechualdehyde against Micrococcus luteus and its effect on pork quality characteristics. Sci Rep 2022; 12:18856. [PMID: 36344587 PMCID: PMC9640607 DOI: 10.1038/s41598-022-23309-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 10/29/2022] [Indexed: 11/09/2022] Open
Abstract
This study investigated the mechanism of membrane damage by protocatechualdehyde (PCA) against Micrococcus luteus and assessed effects of PCA on the sensory and physicochemical properties of pork. The mechanism of PCA inhibition on M. luteus was studied by determining the minimum inhibitory concentration (MIC) based on membrane potential, intracellular ATP concentration, intracellular pH, confocal laser scanning microscopy (CLSM), and field emission gun scanning electron microscopy (FEG-SEM). The results showed that the MIC of PCA against M. luteus was 1.25 mg/mL. Hyperpolarization of the bacterial cell membrane, a decrease in the intracellular ATP concentration, and intracellular pH indicated that PCA damaged the cell membrane of M. luteus. FEG-SEM observation revealed that PCA could cause surface collapse, cell membrane rupture, and content outflow of M. luteus. Additionally, PCA was found to inhibit increases in the total number of colonies, the thiobarbituric acid reactive substances (TBARS) value growth rate, and moisture mobility in raw pork. Additionally, it improved the color and texture of raw pork, all of which effectively prolonged its shelf life. This study will encourage the application of PCA as a natural antibacterial agent in the food industry.
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17
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Inhibitory effect of protocatechualdehyde on Yersinia enterocolitica and its critical virulence factors. Microb Pathog 2022; 173:105877. [DOI: 10.1016/j.micpath.2022.105877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/23/2022] [Accepted: 11/06/2022] [Indexed: 11/11/2022]
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18
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Ji J, Huang S, Liu S, Yuan Y, Zhao J, Zhang S. A novel biomass-derived Schiff base waterborne epoxy coating for flame retardation and anti-bacteria. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.109910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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19
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Zhang Q, Huang K, Tan J, Lei X, Huang L, Song Y, Li Q, Zou C, Xie H. Metal-phenolic networks modified polyurethane as periosteum for bone regeneration. CHINESE CHEM LETT 2022; 33:1623-1626. [DOI: 10.1016/j.cclet.2021.09.105] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Kim M, Ahn C, Kim C. Major Antioxidant Compound of Polyporus Parvovarius Culture Filtrate. Nat Prod Commun 2022. [DOI: 10.1177/1934578x211072336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
During the screening of natural antioxidants from the culture broths of fungi of mushroom origin, the culture broth of Polyporus parvovarius was found to exhibit potent antioxidant activity. An antioxidative substance, compound 1, was isolated by solvent partitioning and column chromatography, and its chemical structure determined by nuclear magnetic resonance spectroscopic methods to be 3,4-dihydroxybenzaldehyde. Compound 1 exhibited potent free radical scavenging activity with a half-maximal inhibitory concentration of 101.4 µg/mL against the 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) radical. These results indicate that the culture filtrate of P. parvovarius has antioxidant properties, with the major antioxidant compound confirmed as a protocatechuic aldehyde; these findings provide novel insights regarding mushroom-induced antioxidant resources.
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Affiliation(s)
- Minkyeong Kim
- Microorganism Resources Division, National Institute of Biological Resources, Incheon 22689, Korea
| | - Chorong Ahn
- Microorganism Resources Division, National Institute of Biological Resources, Incheon 22689, Korea
| | - Changmu Kim
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, Korea
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21
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Guo T, Li M, Sun X, Wang Y, Yang L, Jiao H, Li G. Synergistic Activity of Capsaicin and Colistin Against Colistin-Resistant Acinetobacter baumannii: In Vitro/Vivo Efficacy and Mode of Action. Front Pharmacol 2021; 12:744494. [PMID: 34603057 PMCID: PMC8484878 DOI: 10.3389/fphar.2021.744494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/03/2021] [Indexed: 11/13/2022] Open
Abstract
Acinetobacter baumannii is an opportunistic pathogen predominantly associated with nosocomial infections. With emerging resistance against polymyxins, synergistic combinations of drugs are being investigated as a new therapeutic approach. Capsaicin is a common constituent of the human diet and is widely used in traditional alternative medicines. The present study evaluated the antibacterial activities of capsaicin in combination with colistin against three unrelated colistin-resistant Acinetobacter baumannii strains in vitro and in vivo, and then further studied their synergistic mechanisms. Using the checkerboard technique and time-kill assays, capsaicin and colistin showed a synergistic effect on colistin-resistant A. baumannii. A mouse bacteremia model confirmed the in vivo effects of capsaicin and colistin. Mechanistic studies shown that capsaicin can inhibit the biofilm formation of both colistin-resistant and non-resistant A. baumannii. In addition, capsaicin decreased the production of intracellular ATP and disrupted the outer membrane of A. baumannii. In summary, the synergy between these drugs may enable a lower concentration of colistin to be used to treat A. baumannii infection, thereby reducing the dose-dependent side effects. Hence, capsaicin–colistin combination therapy may offer a new treatment option for the control of A. baumannii infection.
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Affiliation(s)
- Tingting Guo
- Department of Microbiology, School of Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis/Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou, China
| | - Mengying Li
- Department of Microbiology, School of Medicine, Yangzhou University, Yangzhou, China.,Department of Pharmacy, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou, China
| | - Xiaoli Sun
- Department of Microbiology, School of Medicine, Yangzhou University, Yangzhou, China
| | - Yuhang Wang
- Department of Microbiology, School of Medicine, Yangzhou University, Yangzhou, China
| | - Liying Yang
- Department of Microbiology, School of Medicine, Yangzhou University, Yangzhou, China
| | - Hongmei Jiao
- Department of Microbiology, School of Medicine, Yangzhou University, Yangzhou, China
| | - Guocai Li
- Department of Microbiology, School of Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonosis/Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou, China
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22
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Han S, Yang L, Wang Y, Ran Y, Li S, Ding W. Preliminary Studies on the Antibacterial Mechanism of a New Plant-Derived Compound, 7-Methoxycoumarin, Against Ralstonia solanacearum. Front Microbiol 2021; 12:697911. [PMID: 34421853 PMCID: PMC8377673 DOI: 10.3389/fmicb.2021.697911] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/19/2021] [Indexed: 12/04/2022] Open
Abstract
Ralstonia solanacearum (R. solanacearum) is one of the most devastating plant bacterial pathogens and leads to serious economic losses in crops worldwide. In this study, the antibacterial mechanism of 7-methoxycoumarin, a new coumarin antibiotic, was preliminarily investigated by the observation of symptoms and physical and biochemical analyses. The results showed that 7-methoxycoumarin significantly suppressed bacterial growth of R. solanacearum, with the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) values of 75 and 175 mg/L, respectively. Electron microscopy observations showed that the bacterial cell membrane was destroyed after 7-methoxycoumarin treatment. Biofilm formation of R. solanacearum was significantly suppressed by 7-methoxycoumarin at concentrations ranging from 25 to 100 mg/L. Furthermore, virulence-associated genes epsE, hrpG, and popA of R. solanacearum were significantly inhibited by 7-methoxycoumarin. The application of 7-methoxycoumarin effectively suppressed tobacco bacterial wilt progress in pot experiments, with relative control efficiencies of 83.61, 68.78, and 58.11% at 6, 8, and 10 days post inoculation, respectively.
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Affiliation(s)
- Songting Han
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, China
| | - Liang Yang
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, China
| | - Yao Wang
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, China
| | - Yuao Ran
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, China
| | - Shili Li
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, China
| | - Wei Ding
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, China
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Abu-Reidah IM, Critch AL, Manful CF, Rajakaruna A, Vidal NP, Pham TH, Cheema M, Thomas R. Effects of pH and Temperature on Water under Pressurized Conditions in the Extraction of Nutraceuticals from Chaga ( Inonotus obliquus) Mushroom. Antioxidants (Basel) 2021; 10:1322. [PMID: 34439572 PMCID: PMC8389277 DOI: 10.3390/antiox10081322] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/03/2021] [Accepted: 08/11/2021] [Indexed: 12/04/2022] Open
Abstract
Currently, there is increased interest in finding appropriate food-grade green extraction systems capable of extracting these bioactive compounds from dietary mushrooms for applications in various food, pharmacological, or nutraceutical formulations. Herein, we evaluated a modified Swiss water process (SWP) method using alkaline and acidic pH at low and high temperature under pressurized conditions as a suitable green food grade solvent to obtained extracts enriched with myco-nutrients (dietary phenolics, total antioxidants (TAA), vitamins, and minerals) from Chaga. Ultra-high performance liquid chromatography coupled to high resolution accurate mass tandem mass spectrometry (UHPLC-HRAMS-MS/MS) was used to assess the phenolic compounds and vitamin levels in the extracts, while inductively coupled plasma mass spectrometry (ICP-MS) was used to determine the mineral contents. Over 20 phenolic compounds were quantitatively evaluated in the extracts and the highest total phenolic content (TPC) and total antioxidant activity (TAA) was observed at pH 11.5 at 100 °C. The most abundant phenolic compounds present in Chaga extracts included phenolic acids such as protocatechuic acid 4-glucoside (0.7-1.08 µg/mL), syringic acid (0.62-1.18 µg/mL), and myricetin (0.68-1.3 µg/mL). Vitamins are being reported for the first time in Chaga. Not only, a strong correlation was found for TPC with TAA (r-0.8, <0.0001), but also, with individual phenolics (i.e., Salicylic acid), lipophilic antioxidant activity (LAA), and total antioxidant minerals (TAM). pH 2.5 at 100 °C treatment shows superior effects in extracting the B vitamins whereas pH 2.5 at 60 and 100 °C treatments were outstanding for extraction of total fat-soluble vitamins. Vitamin E content was the highest for the fat-soluble vitamins in the Chaga extract under acidic pH (2.5) and high temp. (100 °C) and ranges between 50 to 175 µg/100 g Chaga. Antioxidant minerals ranged from 85.94 µg/g (pH7 at 100 °C) to 113.86 µg/g DW (pH2.5 at 100 °C). High temperature 100 °C and a pH of 2.5 or 9.5. The treatment of pH 11.5 at 100 °C was the most useful for recovering phenolics and antioxidants from Chaga including several phenolic compounds reported for the first time in Chaga. SWP is being proposed herein for the first time as a novel, green food-grade solvent system for the extraction of myco-nutrients from Chaga and have potential applications as a suitable approach to extract nutrients from other matrices. Chaga extracts enriched with bioactive myconutrients and antioxidants may be suitable for further use or applications in the food and nutraceutical industries.
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Affiliation(s)
- Ibrahim M. Abu-Reidah
- School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada; (A.L.C.); (C.F.M.); (A.R.); (N.P.V.); (T.H.P.); (M.C.)
- The Functional Foods Sensory Laboratory, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada
| | - Amber L. Critch
- School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada; (A.L.C.); (C.F.M.); (A.R.); (N.P.V.); (T.H.P.); (M.C.)
- The Functional Foods Sensory Laboratory, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada
| | - Charles F. Manful
- School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada; (A.L.C.); (C.F.M.); (A.R.); (N.P.V.); (T.H.P.); (M.C.)
- The Functional Foods Sensory Laboratory, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada
| | - Amanda Rajakaruna
- School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada; (A.L.C.); (C.F.M.); (A.R.); (N.P.V.); (T.H.P.); (M.C.)
- The Functional Foods Sensory Laboratory, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada
| | - Natalia P. Vidal
- School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada; (A.L.C.); (C.F.M.); (A.R.); (N.P.V.); (T.H.P.); (M.C.)
- The Functional Foods Sensory Laboratory, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada
| | - Thu H. Pham
- School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada; (A.L.C.); (C.F.M.); (A.R.); (N.P.V.); (T.H.P.); (M.C.)
- The Functional Foods Sensory Laboratory, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada
| | - Mumtaz Cheema
- School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada; (A.L.C.); (C.F.M.); (A.R.); (N.P.V.); (T.H.P.); (M.C.)
| | - Raymond Thomas
- School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada; (A.L.C.); (C.F.M.); (A.R.); (N.P.V.); (T.H.P.); (M.C.)
- The Functional Foods Sensory Laboratory, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada
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Li S, Pi J, Zhu H, Yang L, Zhang X, Ding W. Caffeic Acid in Tobacco Root Exudate Defends Tobacco Plants From Infection by Ralstonia solanacearum. FRONTIERS IN PLANT SCIENCE 2021; 12:690586. [PMID: 34456935 PMCID: PMC8387680 DOI: 10.3389/fpls.2021.690586] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/16/2021] [Indexed: 06/13/2023]
Abstract
In rhizospheres, chemical barrier-forming natural compounds play a key role in preventing pathogenic bacteria from infecting plant roots. Here, we sought to identify specific phenolic exudates in tobacco (Nicotiana tobaccum) plants infected by the soil-borne pathogen Ralstonia solanacearum that may exhibit antibacterial activity and promote plant resistance against pathogens. Among detected phenolic acids, only caffeic acid was significantly induced in infected plants by R. solanacearum relative to healthy plants, and the concentration of caffeic acid reached 1.95 μg/mL. In vivo, caffeic acid at 200 μg/mL was highly active against R. solanacearum and obviously damaged the membrane structure of the R. solanacearum cells, resulting in the thinning of the cell membrane and irregular cavities in cells. Moreover, caffeic acid significantly inhibited biofilm formation by repressing the expression of the lecM and epsE genes. In vitro, caffeic acid could effectively activate phenylalanine ammonia-lyase (PAL) and peroxidase (POD) and promote the accumulation of lignin and hydroxyproline. In pot and field experiments, exogenous applications of caffeic acid significantly reduced and delayed the incidence of tobacco bacterial wilt. Taken together, all these results suggest that caffeic acid played a crucial role in defending against R. solanacearum infection and was a potential and effective antibacterial agent for controlling bacterial wilt.
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Affiliation(s)
- Shili Li
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, China
| | - Jing Pi
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, China
| | - Hongjiang Zhu
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, China
| | - Liang Yang
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, China
| | - Xingguo Zhang
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Southwest University, Chongqing, China
| | - Wei Ding
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, China
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Qu Y, Liu X, Zong S, Sun H, Liu S, Zhao Y. Protocatechualdehyde Inhibits the Osteoclast Differentiation of RAW264.7 and BMM Cells by Regulating NF- κB and MAPK Activity. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6108999. [PMID: 34327232 PMCID: PMC8302381 DOI: 10.1155/2021/6108999] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 06/07/2021] [Indexed: 11/18/2022]
Abstract
Protocatechualdehyde (PCA), an important component of Salvia miltiorrhiza, has many activities, such as anti-inflammatory and antisepsis activities. However, the role of PCA in osteoclasts is not clear. We used RAW264.7 cells (a mouse leukemic monocyte/macrophage cell line) and bone marrow macrophages (BMMs) to probe the role of PCA in osteoclasts and the underlying mechanism. The effects of PCA on cell activity were evaluated with CCK-8 assays. TRAP staining detected mature osteoclasts. Corning Osteo Assay Surface plates were used to examine absorption. The levels of RNA and protein were analyzed, respectively, using RT-PCR and Western blotting. PCA (5 μg/ml) was not toxic to the two cell types but reduced the formation of osteoclasts and bone absorption. Furthermore, PCA restrained the expression of mRNAs encoding proteins associated with osteoclasts and reduced the phosphorylation of proteins in important signaling pathways. The results indicate that PCA inhibits osteoclast differentiation by suppressing NF-κB and MAPK activity.
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Affiliation(s)
- Yunyun Qu
- Department of Central Lab, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, China
- The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xin Liu
- Department of Central Lab, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, China
| | - Shuai Zong
- Department of Central Lab, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, China
| | - Huanxin Sun
- Department of Central Lab, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, China
| | - Shuang Liu
- Department of Central Lab, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, China
| | - Yueran Zhao
- Department of Central Lab, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, China
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Tian L, Wang X, Zhang D, Wu M, Xue Z, Liu Z, Yang S, Li H, Gong G. Evaluation of the membrane damage mechanism of protocatechualdehyde against Yersinia enterocolitica and simulation of growth inhibition in pork. Food Chem 2021; 363:130340. [PMID: 34144416 DOI: 10.1016/j.foodchem.2021.130340] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 04/15/2021] [Accepted: 06/06/2021] [Indexed: 11/24/2022]
Abstract
This study sought to explore the antibacterial mechanism associated with membrane damage in Yersinia enterocolitica by protocatechualdehyde (PCA), thus providing improved knowledge of whether PCA is suitable for pork preservation. The minimum inhibitory concentration (MIC) of PCA was determined by micro-broth dilution. We then characterized functional and morphological changes of Y. enterocolitica treated with PCA. Finally, the growth inhibition model of PCA against Y. enterocolitica in pork was established using the response surface method. Accordingly, the MIC of PCA against Y. enterocolitica was found to be 0.3125 mg/mL. Significant observations incorporated membrane depolarization, a markedly decreased intracellular ATP and pH, and morphological changes induced by PCA treatment. After PCA treatment under low temperatures, the average Y. enterocolitica count in pork decreased by two log cycles. According to the obtained findings, PCA exhibited satisfactory performances as a food preservative to control the growth and reproduction of Y. enterocolitica in pork.
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Affiliation(s)
- Lu Tian
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Xuyang Wang
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Di Zhang
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Mi Wu
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Zhifei Xue
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Zhiqiang Liu
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Siqi Yang
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Hui Li
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Guoli Gong
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China.
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Liang Y, Li Z, Huang Y, Yu R, Guo B. Dual-Dynamic-Bond Cross-Linked Antibacterial Adhesive Hydrogel Sealants with On-Demand Removability for Post-Wound-Closure and Infected Wound Healing. ACS NANO 2021; 15:7078-7093. [PMID: 33764740 DOI: 10.1021/acsnano.1c00204] [Citation(s) in RCA: 503] [Impact Index Per Article: 167.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The design and development of a smart bioadhesive hydrogel sealant with self-healing and excellent antibacterial activity to achieve high wound closure effectiveness and post-wound-closure care is highly desirable in clinical applications. In this work, a series of adhesive antioxidant antibacterial self-healing hydrogels with promising traits were designed through dual-dynamic-bond cross-linking among ferric iron (Fe), protocatechualdehyde (PA) containing catechol and aldehyde groups and quaternized chitosan (QCS) to enable the closure of skin incisions and promotion of methicillin-resistant Staphylococcus aureus (MRSA)-infected wound healing. The dual-dynamic-bond cross-linking of a pH-sensitive coordinate bond (catechol-Fe) and dynamic Schiff base bonds with reversible breakage and re-formation equips the hydrogel with excellent autonomous healing and on-demand dissolution or removal properties. Additionally, the hydrogel presents injectability, good biocompatibility and antibacterial activity, multifunctional adhesiveness, and hemostasis as well as NIR responsiveness. The in vivo evaluation in a rat skin incision model and infected full-thickness skin wound model revealed the high wound closure effectiveness and post-wound-closure care of the smart hydrogels, demonstrating its great potential in dealing with skin incisions and infected full-thickness skin wounds.
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Affiliation(s)
- Yuqing Liang
- Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Zhenlong Li
- Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Ying Huang
- Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Rui Yu
- Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Baolin Guo
- Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
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Rajamma SB, Raj A, Kalampalath V, Eapen SJ. Elucidation of antibacterial effect of calcium chloride against Ralstonia pseudosolanacearum race 4 biovar 3 infecting ginger (Zingiber officinale Rosc.). Arch Microbiol 2021; 203:663-671. [PMID: 33029663 DOI: 10.1007/s00203-020-02052-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 08/25/2020] [Accepted: 09/15/2020] [Indexed: 11/25/2022]
Abstract
Bacterial wilt incited by Ralstonia pseudosolanacearum (Rps) race 4 biovar 3 is a serious threat to ginger (Zingiber officinale Rosc.) cultivation throughout the ginger growing tracts and warrants effective remedial measures since most of the strategies failed at field level implementation. After a series of experiments, calcium chloride was found to be effective against Rps both in vitro and in planta and its prophylactic effect has been successfully demonstrated under field conditions. CaCl2 at a concentration of > 2% significantly inhibited Rps under in vitro conditions. Calcium is an important nutritional element imparts a major role in plant disease resistance, and numerous studies have demonstrated the mitigating effect of calcium for disease management. CaCl2 being inhibitory to Rps, the mechanism of inhibition by CaCl2 against Rps was elucidated by a series of in vitro assays including swarming motility and biofilm formation. Direct inhibition was also studied using Scanning Electron Microscopy (SEM). The minimum bactericidal concentration and minimum inhibitory concentration were found to be around 3% while the EC 90 value was found to be 2.25%. The SEM analysis revealed the destruction of cell structure by making perforations on the cell surface. CaCl2 at the targeted concentrations inhibited biofilm formation as well as swarming motility of Rps. These findings suggest that CaCl2 exhibits strong antibacterial activity against Rps and has the potential to be used as an effective bactericide for Rps in managing bacterial wilt in ginger.
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Affiliation(s)
- Suseela Bhai Rajamma
- ICAR-Indian Institute of Spices Research, Marikunnu P O, Kozhikode, Kerala, 673012, India.
| | - Ammu Raj
- ICAR-Indian Institute of Spices Research, Marikunnu P O, Kozhikode, Kerala, 673012, India
| | - Vincy Kalampalath
- ICAR-Indian Institute of Spices Research, Marikunnu P O, Kozhikode, Kerala, 673012, India
| | - Santhosh J Eapen
- ICAR-Indian Institute of Spices Research, Marikunnu P O, Kozhikode, Kerala, 673012, India
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Zheng D, Xu Y, Yuan G, Wu X, Li Q. Bacterial ClpP Protease Is a Potential Target for Methyl Gallate. Front Microbiol 2021; 11:598692. [PMID: 33613462 PMCID: PMC7890073 DOI: 10.3389/fmicb.2020.598692] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/28/2020] [Indexed: 11/29/2022] Open
Abstract
Methyl gallate (MG) is an effective microbicide with great potential application in the integrated management of plant diseases and an important potential drug for clinical application. However, its target remains unknown. This study conducted a transposon sequencing (Tn-seq) under MG treatment in plant pathogenic bacterium Ralstonia solanacearum. Tn-seq identified that the mutation of caseinolytic protease proteolytic subunit gene clpP significantly increased the resistance of R. solanacearum to MG, which was validated by the in-frame gene deletion. iTRAQ (isobaric tags for relative and absolute quantitation) proteomics analysis revealed that chemotaxis and flagella associated proteins were the major substrates degraded by ClpP under the tested condition. Moreover, sulfur metabolism-associated proteins were potential substrates of ClpP and were upregulated by MG treatment in wild-type R. solanacearum but not in clpP mutant. Furthermore, molecular docking confirmed the possible interaction between MG and ClpP. Collectively, this study revealed that MG might target bacterial ClpP, inhibit the activity of ClpP, and consequently disturb bacterial proteostasis, providing a theoretical basis for the application of MG.
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Affiliation(s)
- Dehong Zheng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, China
| | - Yanan Xu
- Pharmaceutical College, Guangxi Medical University, Nanning, China
| | - Gaoqing Yuan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, China
| | - Xiaogang Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, China
| | - Qiqin Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, China
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Protocatechuic Aldehyde Attenuates UVA-Induced Photoaging in Human Dermal Fibroblast Cells by Suppressing MAPKs/AP-1 and NF-κB Signaling Pathways. Int J Mol Sci 2020; 21:ijms21134619. [PMID: 32610570 PMCID: PMC7370206 DOI: 10.3390/ijms21134619] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 06/25/2020] [Accepted: 06/26/2020] [Indexed: 12/12/2022] Open
Abstract
Ultraviolet radiation (UV) is a major causative factor of DNA damage, inflammatory responses, reactive oxygen species (ROS) generation and a turnover of various cutaneous lesions resulting in skin photoaging. The purpose of this study is to investigate the protective effect of protocatechuic aldehyde (PA), which is a nature-derived compound, against UVA-induced photoaging by using human dermal fibroblast (HDF) cells. In this study, our results indicated that PA significantly reduced the levels of intracellular ROS, nitric oxide (NO), and prostaglandins-E2 (PGE2) in UVA-irradiated HDF cells. It also inhibited the levels of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) expression. Besides, PA significantly suppressed the expression of matrix metalloproteinases-1 (MMP-1) and pro-inflammatory cytokines and promoted collagen synthesis in the UVA-irradiated HDF cells. These events occurred through the regulation of activator protein 1 (AP-1), nuclear factor-κB (NF-κB), and p38 signaling pathways in UVA-irradiated HDF cells. Our findings suggest that PA enhances the protective effect of UVA-irradiated photoaging, which is associated with ROS scavenging, anti-wrinkle, and anti-inflammatory activities. Therefore, PA can be a potential candidate for the provision of a protective effect against UVA-stimulated photoaging in the pharmaceutical and cosmeceutical industries.
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31
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Bao H, Yang H, Wang F, Zhou K, Yang Y, Xu Y, Li L. HPLC Fingerprint Combined With Multicomponent Quantification as an Efficient Method for Quality Evaluation of Pharbitidis Semen. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20931642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Pharbitidis Semen is a traditional Chinese medicine(TCM) with a long history for treatment of edema and fullness, fecal and urinary retention, phlegm and retained fluid, and abdominal pain due to parasitic infestation. Since Pharbitidis Semen is distributed throughout the country, the quality of the medicine from different origins may be varied. Moreover, the reported method could not control the quality comprehensively. In this article, a fingerprint of Pharbitidis Semen has been established based on a high-performance liquid chromatography (HPLC) method. In addition, the contents of the 2 main effective components were determined simultaneously. The reference HPLC fingerprint was obtained according to the chromatograms of test samples. The similarity values were calculated by the Similarity Evaluation System for Chromatographic Fingerprint of TCM (2004 A edition). Cluster analysis of 10 batches of samples was performed using statistical software (SPSS 20.0). The HPLC fingerprints of 10 batches of Pharbitidis Semen showed 25 well-resolved common peaks in each chromatogram. Two of these peaks were assigned to protocatechuic aldehyde and caffeic acid. As a result, HPLC fingerprint similarities of 10 batches of samples were more than 0.99. Pharbitidis Semen from different habitats could be divided into 3 or 2 groups. The results of cluster analysis showed that samples classified into 1 group were associated with their habitats and breeds. At the same time, quantification results showed that the contents of protocatechuic aldehyde and caffeic acid were in the range of 0.026-0.088 and 0.019-0.053 mg/g−1 respectively. HPLC fingerprint combined with multicomponent quantification and data analysis techniques can be an efficient and useful method for monitoring the quality of Pharbitidis Semen. This study also provides a practical strategy for overall quality evaluation and control of traditional Chinese medicines.
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Affiliation(s)
- Huiwei Bao
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Huailei Yang
- Plant Chemistry Laboratory, Chinese Institute of Jilin Ginseng, Changchun, China
| | - Feng Wang
- College of Pharmacy and Food, Changchun Medical College, Changchun, China
| | - Kaixuan Zhou
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Yanan Yang
- Pharmacy Department, Changchun Hospital of Traditional Chinese Medicine, Changchun, China
| | - Yang Xu
- College of Pharmacy, Baicheng Medical College, Baicheng, China
- College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Lijing Li
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
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32
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Ma Y, Wang Y, Zhang H, Sun W, Li Z, Zhang F, Zhang H, Chen F, Zhang H, An J, He C. Antimicrobial mechanism of strictinin isomers extracted from the root of Rosa roxburghii Tratt (Ci Li Gen). JOURNAL OF ETHNOPHARMACOLOGY 2020; 250:112498. [PMID: 31877366 DOI: 10.1016/j.jep.2019.112498] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/19/2019] [Accepted: 12/21/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The root of Rosa roxburghii Tratt (Ci Li Gen) is a kind of Chinese ethnomedicine in Gui Zhou province, used for the treatment of abdominal pain, acute bacillary dysentery, gastroenteritis and other diseases in human and livestock. AIM OF THE STUDY The aim of this study was to isolate and identify the effective antimicrobial components from the ethyl acetate extract of the Ci Li Gen and to investigate its antimicrobial mechanism afterwards. MATERIALS AND METHODS The effective antimicrobial components in the ethyl acetate extract from the Ci Li Gen were isolated by high-performance liquid chromatography (HPLC) and identified by high-resolution mass spectrometry (HRMS) and nuclear magnetic resonance (NMR). The antibacterial activity was evaluated by the minimum inhibition concentration (MIC) measured by microdilution technique. The antibacterial mechanism was investigated by the time-kill curve, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) combined with NanoLC-ESI-MS/MS, intracellular esterase activity detected by Flow cytometry, and the ultrastructural changes of the Escherichia coli ATCC 25922 observed by scanning electron microscope (SEM). RESULTS The effective antimicrobial component (peak 4) was identified as strictinin isomers by HRMS and NMR. The MIC of strictinin isomers against E. coli was 0.125 mg/mL. With respect to the negative control group, the results of SDS-PAGE and NanoLC-ESI-MS/MS showed that the up-regulated proteins of the strictinin isomers treated group were Metal-binding protein ZinT, 30S ribosomal protein S4 and 50S ribosomal protein L4, while the down-regulated protein was hydroperoxide reductase subunit C. Moreover, in the strictinin isomers treated group, the esterase activity in the E. coli cells was reduced and the bacteria E. coli became atrophied, pitted and contorted, and the surface of E. coli was rough and blurred. CONCLUSIONS According to the above results, the antimicrobial mechanism of strictinin isomers against E. coli were oxidative stress and protein synthesis disorder, which inhibited the activity of the enzymes required for bacterial growth and metabolism. These findings reflected the pleiotropic effects of strictinin isomers, making it a promising antimicrobial agent for pharmaceutical research.
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Affiliation(s)
- Yichao Ma
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yuan Wang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Hua Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Weidong Sun
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhenzhen Li
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Fengyichi Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Haibin Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Fuxin Chen
- School of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, 710054, China.
| | - Hang Zhang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Jun An
- Qinnan Institute for Food and Drug Control, Duyun, 558000, China
| | - Chenghua He
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China.
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Li P, Yang Z, Tang B, Zhang Q, Chen Z, Zhang J, Wei J, Sun L, Yan J. Identification of Xanthones from the Mangosteen Pericarp that Inhibit the Growth of Ralstonia solanacearum. ACS OMEGA 2020; 5:334-343. [PMID: 31956780 PMCID: PMC6964269 DOI: 10.1021/acsomega.9b02746] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 12/12/2019] [Indexed: 06/10/2023]
Abstract
Bacterial wilt caused by Ralstonia solanacearum is one of the most destructive bacterial diseases in agriculture. There is no effective control method, although chemical pesticides are used to prevent this disease, but they may lead to serious problems of environmental pollution. Natural products from plants can be rich and environmentally friendly sources for a broad spectrum biological control of bacteria. This study focuses on the pericarp of mangosteen (Garcinia mangostana) using bioactivity-guided analysis of different fractions and liquid chromatography-mass spectrometry combined with multivariate analysis to determine markers of active fractions. Six prenyl xanthones, including two new xanthones, garcimangosxanthones H and I, were isolated and identified by NMR and HRESIMS. The biomarker γ-mangostin displayed significant activity against the phytopathogen R. solanacearum with an IC50 of 34.7 ± 1.5 μg/mL; γ-mangostin affected the bacterial morphology at a concentration of 16.0 μg/mL as seen with a scanning electron microscope image, and it significantly repressed the virulence-associated genes HrpB, FihD, and PilT of R. solanacearum. γ-Mangostin also reduced the symptoms of bacterial wilt disease effectively that is caused by R. solanacearum in tomato and tobacco seedlings in vitro. These results suggested that the use of γ-mangostin from the mangosteen pericarp against R. solanacearum may be used as a natural bacteriostatic agent in agriculture.
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Affiliation(s)
- Ping Li
- Key Laboratory of
Agro-Environment in the Tropics, Ministry of Agriculture and Rural
Affairs; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture;
Guangdong Engineering Research Centre for Modern Eco-Agriculture;
College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, People’s Republic of China
| | - Zhongyan Yang
- Key Laboratory of
Agro-Environment in the Tropics, Ministry of Agriculture and Rural
Affairs; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture;
Guangdong Engineering Research Centre for Modern Eco-Agriculture;
College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, People’s Republic of China
| | - Bolin Tang
- Key Laboratory of
Agro-Environment in the Tropics, Ministry of Agriculture and Rural
Affairs; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture;
Guangdong Engineering Research Centre for Modern Eco-Agriculture;
College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, People’s Republic of China
| | - Qian Zhang
- Key Laboratory of
Agro-Environment in the Tropics, Ministry of Agriculture and Rural
Affairs; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture;
Guangdong Engineering Research Centre for Modern Eco-Agriculture;
College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, People’s Republic of China
| | - Zepeng Chen
- Guangdong Provincial Tobacco Shaoguan Co. Ltd., Shaoguan, Guangdong, 512000 People’s Republic
of China
| | - Jili Zhang
- China Tobacco Guangxi Industrial
Co. Ltd., Nanning, Guangxi 530001, People’s Republic of China
| | - Jianyu Wei
- China Tobacco Guangxi Industrial
Co. Ltd., Nanning, Guangxi 530001, People’s Republic of China
| | - Lirong Sun
- Key Laboratory of Mental
Health of the Ministry of Education, Guangdong-Hong Kong-Macao Greater
Bay Area Center for Brain Science and Brain-Inspired Intelligence,
Guangdong Province Key Laboratory of Psychiatric Disorders, Department
of Neurobiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, People’s Republic of China
| | - Jian Yan
- Key Laboratory of
Agro-Environment in the Tropics, Ministry of Agriculture and Rural
Affairs; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture;
Guangdong Engineering Research Centre for Modern Eco-Agriculture;
College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, People’s Republic of China
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Ma YN, Chen CJ, Li Q, Wang W, Xu FR, Cheng YX, Dong X. Fungicidal Activity of Essential Oils from Cinnamomum cassia against the Pathogenic Fungi of Panax notoginseng Diseases. Chem Biodivers 2019; 16:e1900416. [PMID: 31631505 DOI: 10.1002/cbdv.201900416] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 09/16/2019] [Indexed: 11/11/2022]
Abstract
The frequent disease of Panax notoginseng caused by the pathogenic fungi in field cultivation has become the major threaten to the sustainable development of it. The present study was conducted to find natural agent with potential inhibition against pathogen. Therefore, the inhibitory effects of Cinnamomum cassia (L.) J.Presl essential oils (EOs) against P. notoginseng associated pathogenic fungi were conducted both in vitro and in vivo experiments. The results of the Oxford cup test revealed that C. cassia dry bark EO (50 mg/mL) had significant inhibitory activity on the growth of all tested fungi, and the growth of various pathogens was completely inhibited, except for that of Fusarium solani. Therefore, the constituents of C. cassia EOs were analyzed by GC/MS, and the research demonstrated that the main constituents of C. cassia dry bark EO were trans-cinnamaldehyde (75.65 %), (E)-2-methoxycinnamaldehyde (6.08 %), cinnamaldehyde (3.47 %) and cinnamyl acetate (1.02 %). The MIC results showed that C. cassia dry bark EO and the main compounds had good antifungal effect on the tested strains, and the inhibitory effect was similar to that of hymexazol (chemical pesticide). By analyzing the value of the fraction inhibitory concentration index (FICI), additive effects, irrelevant effects and synergistic effects were observed after the mixture of hymexazol against various pathogens. Moreover, in vivo model showed that C. cassia dry bark EO could reduce the occurrence of anthrax in P. notoginseng. To widen the resources of C. cassia available, the compositions of both C. cassia fresh bark and leaf EOs were also tested and many common compositions existed among them. Taken together, it was concluded that C. cassia EO had the potential use in the field to reduce the pathogenic disease.
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Affiliation(s)
- Yu-Nan Ma
- College of Pharmaceutical Sciences, Yunnan University of Chinese Medicine, Kunming, 650500, P. R. China
| | - Chuan-Jiao Chen
- College of Pharmaceutical Sciences, Yunnan University of Chinese Medicine, Kunming, 650500, P. R. China
| | - Qingqing Li
- College of Pharmaceutical Sciences, Yunnan University of Chinese Medicine, Kunming, 650500, P. R. China
| | - Wei Wang
- Feixian Agriculture Bureau, Feixian, 273400, P. R. China
| | - Fu-Rong Xu
- College of Pharmaceutical Sciences, Yunnan University of Chinese Medicine, Kunming, 650500, P. R. China
| | - Yong-Xian Cheng
- Guangdong Key Laboratory for Genome Stability & Disease Prevention, School of Pharmaceutical Sciences, Shenzhen University Health Science Center, Shenzhen, 518060, P. R. China
| | - Xian Dong
- College of Pharmaceutical Sciences, Yunnan University of Chinese Medicine, Kunming, 650500, P. R. China
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Xie W, Huang S, Liu S, Zhao J. A biobased Schiff base from protocatechualdehyde and its application in flame-retardant, low-smoke epoxy resin systems. RSC Adv 2019; 9:30815-30822. [PMID: 35529374 PMCID: PMC9072551 DOI: 10.1039/c9ra06574a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 09/16/2019] [Indexed: 11/21/2022] Open
Abstract
Herein, a new renewable Schiff base flame retardant 4,4'-((1E,1'E)-((oxybis(4,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(benzene-1,2-diol) (PH-ODA) was prepared by the reaction of protocatechualdehyde with 4,4'-diaminodiphenyl ether (ODA). PH-ODA (acting as a carbonization agent) combined with ammonium polyphosphate (APP) were used as intumescent flame retardants for commercial bisphenol A epoxy resin (DGEBA). For the cured epoxy resin containing 7.5% APP and 2.5% PH-ODA, the limiting oxygen index (LOI) reached 29.9% (with the V-0 rating in UL-94 test), and the peak heat release rate and total smoke production were respectively decreased by 88.1% and 68.3%, compared with pure epoxy resin. The enhancement of fire-safety performance was due to PH-ODA/APP promoting the formation of a compact intumescent char structure. It was also found that the synergism between PH-ODA and APP was helpful to enhance the fire resistance of the epoxy matrix. This work provides a facile and sustainable route for synthesizing Schiff base compounds from biomass-derived resources, possessing great potential for application in highly-effective intumescent flame retardants.
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Affiliation(s)
- Weiqi Xie
- School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 P. R. China +86-13611400566 +86-13609724000 +86-13611400566 +86-13609724000
| | - Shiwen Huang
- School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 P. R. China +86-13611400566 +86-13609724000 +86-13611400566 +86-13609724000
| | - Shumei Liu
- School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 P. R. China +86-13611400566 +86-13609724000 +86-13611400566 +86-13609724000
- Key Laboratory of Polymer Processing Engineering, Ministry of Education Guangzhou 510640 P. R. China
| | - Jianqing Zhao
- School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 P. R. China +86-13611400566 +86-13609724000 +86-13611400566 +86-13609724000
- Key Laboratory of Polymer Processing Engineering, Ministry of Education Guangzhou 510640 P. R. China
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Yang L, Wu L, Yao X, Zhao S, Wang J, Li S, Ding W. Hydroxycoumarins: New, effective plant-derived compounds reduce Ralstonia pseudosolanacearum populations and control tobacco bacterial wilt. Microbiol Res 2018; 215:15-21. [PMID: 30172302 DOI: 10.1016/j.micres.2018.05.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 04/26/2018] [Accepted: 05/12/2018] [Indexed: 12/11/2022]
Abstract
Plant wilt disease caused by the soilborne bacterial pathogen Ralstonia pseudosolanacearum is one of the most devastating plant diseases; however, no effective protection against this disease has been developed. Coumarins are important natural plant-derived compounds with a wide range of bioactivities and extensive applications in medicine and agriculture. In the present study, three hydroxycoumarins (Hycs), umbelliferone (UM), esculetin (ES) and daphnetin (DA) significantly inhibited the growth of R. pseudosolanacearum on solid medium in a concentration-dependent manner, and the minimum inhibitory concentration (MICs) of these compounds was 325 mg L-1, 125 mg L-1 and 75 mg L-1, respectively. The percentage of live cells of R. pseudosolanacearum when supplemented with UM, ES, and DA was 63.61%, 17.81% and 7.23%, respectively, which were significantly lower than the DMSO treatment with 92%. Furthermore, irrigating roots with hydroxycoumarins (Hycs) 24 h before inoculation with R. pseudosolanacearum significantly delayed the occurrence of tobacco bacterial wilt, with the control efficiency of the DA treatment (the most efficient of Hycs treatment) 80.03%, 69.83%, 59.19%, 45.49%, 44.12%, 38.27% at 6, 8, 10, 12, 14, and 16 days after inoculation, respectively. Compared with the DMSO treatment, the pathogen populations of tobacco stems supplemented with 100 mg L-1 DA were the lowest, with population significantly reduced by 22.46%, 27.34%, and 18.06% at 4, 7, and 10 days after inoculation, respectively. Based on this study, these Hycs could be applied as potential protective agents in the management of tobacco bacterial wilt.
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Affiliation(s)
- Liang Yang
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, 400715, China
| | - Lintong Wu
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, 400715, China
| | - Xiaoyuan Yao
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, 400715, China
| | - Shiyuan Zhao
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, 400715, China
| | - Jiao Wang
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, 400715, China
| | - Shili Li
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, 400715, China
| | - Wei Ding
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing, 400715, China.
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37
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Zinc oxide nanoparticles for the management of Ralstonia solanacearum, Phomopsis vexans and Meloidogyne incognita incited disease complex of eggplant. ACTA ACUST UNITED AC 2018. [DOI: 10.1007/s42360-018-0064-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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38
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Lou H, Wang X, Chen J, Wang B, Wang W. Transcriptomic response of Ralstonia solanacearum to antimicrobial Pseudomonas fluorescens SN15-2 metabolites. Can J Microbiol 2018; 64:816-825. [PMID: 29852076 DOI: 10.1139/cjm-2018-0094] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
To develop efficient biocontrol agents, it is essential to investigate the response of soil-borne plant pathogens to such agents. For example, the response of Ralstonia solanacearum, the tomato wilt pathogen, to antimicrobial metabolites of Pseudomonas fluorescens is unknown. Thus, we assessed the effects of P. fluorescens SN15-2 fermentation broth on R. solanacearum by transmission electron microscopy and transcriptome technology. RNA sequencing identified 109 and 155 genes that are significantly upregulated and downregulated, respectively, in response to P. fluorescens metabolites, many of which are associated with the cell membrane and cell wall, and with nucleotide acid metabolism, iron absorption, and response to oxidative stress. This study highlights the effectiveness of P. fluorescens metabolites against the tomato wilt pathogen and helps clarify the underlying molecular mechanisms.
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Affiliation(s)
- Haibo Lou
- a State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaobing Wang
- a State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jun Chen
- a State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Bozhi Wang
- b School of Information Science and Technology, Fudan University, Shanghai, 200433, China
| | - Wei Wang
- a State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
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39
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Vu TT, Kim H, Tran VK, Vu HD, Hoang TX, Han JW, Choi YH, Jang KS, Choi GJ, Kim JC. Antibacterial activity of tannins isolated from Sapium baccatum extract and use for control of tomato bacterial wilt. PLoS One 2017; 12:e0181499. [PMID: 28742863 PMCID: PMC5526539 DOI: 10.1371/journal.pone.0181499] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 07/03/2017] [Indexed: 01/03/2023] Open
Abstract
In the search for new antibacterial agents from natural sources, we revealed that a crude methanol extract of Sapium baccatum was highly active against Ralstonia solanacearum, a causal agent of a serious disease called bacterial wilt of tomato. The bioassay-guided fractionation of this extract resulted in the isolation of seven known active compounds, including gallic acid, methyl gallate, corilagin, tercatain, chebulagic acid, chebulinic acid, and quercetin 3-O-α-L-arabinopyranoside. Their chemical structures were determined by electrospray ionization mass spectrometry and nuclear magnetic resonance spectroscopy. An in vitro antibacterial bioassay using a broth microdilution method revealed that, except for quercetin 3-O-α-L-arabinopyranoside (MIC = 250 μg/mL), the isolated compounds exhibited strong antibacterial activity against R. solanacearum (MIC = 26-52 μg/mL). Among the seven compounds, methyl gallate exhibited the strongest broad-spectrum activity against most of the plant pathogenic bacteria tested (MIC = 26-250 μg/mL). In the in vivo experiments, the crude extract of S. baccatum at 2000 and 1000 μg/mL reduced the development of tomato bacterial wilt by 83 and 63%, respectively, under greenhouse conditions after 14 days of infection. The results suggested that the extracts of S. baccatum or isolated tannins could be used as natural bactericides for the control of bacterial wilt of tomato.
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Affiliation(s)
- Thuy Thu Vu
- Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon, Republic of Korea
- Center for Eco-friendly New Materials, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Hun Kim
- Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon, Republic of Korea
- Center for Eco-friendly New Materials, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Vu Khac Tran
- Department of Pharmaceutical Chemistry and Pesticides Technology, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Hoang Dinh Vu
- Department of Pharmaceutical Chemistry and Pesticides Technology, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Tien Xuan Hoang
- Department of Pharmaceutical Chemistry and Pesticides Technology, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Jae Woo Han
- Center for Eco-friendly New Materials, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Yong Ho Choi
- Center for Eco-friendly New Materials, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Kyoung Soo Jang
- Center for Eco-friendly New Materials, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Gyung Ja Choi
- Department of Green Chemistry and Environmental Biotechnology, Korea University of Science and Technology, Daejeon, Republic of Korea
- Center for Eco-friendly New Materials, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Jin-Cheol Kim
- Department of Agricultural Chemistry, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Republic of Korea
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40
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Chen J, Yu Y, Li S, Ding W. Resveratrol and Coumarin: Novel Agricultural Antibacterial Agent against Ralstonia solanacearum In Vitro and In Vivo. Molecules 2016; 21:E1501. [PMID: 27834875 PMCID: PMC6273507 DOI: 10.3390/molecules21111501] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 10/28/2016] [Accepted: 11/04/2016] [Indexed: 12/29/2022] Open
Abstract
Bacterial wilt is a destructive disease caused by the phytopathogen Ralstonia solanacearum (R. solanacearum), which is widely found in various tobacco-growing areas all over the world. Botanical bactericidal substances have gradually emerged as a hot topic in modern pesticide research. In this study, the antibacterial activities of two phytochemicals (resveratrol and coumarin) against R. solanacearum and their in vivo and in vitro efficacy for controlling tobacco bacterial wilt were evaluated. We rule out significant biological effects of both phytochemicals using transmission electron microscope (TEM) and fluorescence microscope, which suppressed the growth of R. solanacearum. Furthermore, we demonstrated that the toxicity mechanisms mainly involved damaging bacterial cell membrane and preventing swarming motility and biofilm formation. A further pot experiment demonstrated that coumarin and resveratrol significantly inhibited early adhesion and colonization of R. solanacearum in tobacco plants and the corresponding control efficacies were 68% and 85% after incubation for 13 days, respectively. The findings of this study suggest that both resveratrol and coumarin have potential as non-toxic antimicrobial strategies for controlling tobacco bacterial wilt disease.
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Affiliation(s)
- Juanni Chen
- Laboratory of Natural Product Pesticide, College of Plant Protection, Southwest University, Chongqing 400715, China.
| | - Yanmei Yu
- Laboratory of Natural Product Pesticide, College of Plant Protection, Southwest University, Chongqing 400715, China.
| | - Shili Li
- Laboratory of Natural Product Pesticide, College of Plant Protection, Southwest University, Chongqing 400715, China.
| | - Wei Ding
- Laboratory of Natural Product Pesticide, College of Plant Protection, Southwest University, Chongqing 400715, China.
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Guo B, Zhang Y, Li S, Lai T, Yang L, Chen J, Ding W. Extract from Maize (Zea mays L.): Antibacterial Activity of DIMBOA and Its Derivatives against Ralstonia solanacearum. Molecules 2016; 21:molecules21101397. [PMID: 27775575 PMCID: PMC6273367 DOI: 10.3390/molecules21101397] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 10/10/2016] [Accepted: 10/15/2016] [Indexed: 01/01/2023] Open
Abstract
Many cereals accumulate hydroxamic acids involved in defense of plant against various fungi, bacteria, and insects. 2,4-dihydroxy-7-methoxy-1,4-benzoxazine-3-one, commonly known as DIMBOA, is one of the principal cyclic hydroxamic acids in aqueous extracts of maize. The aim of this study was to evaluate the antibacterial activity of the isolated DIMBOA and its derivatives 2-benzoxazolinone (BOA), 6-chloro-2-benzoxazolinone (CDHB), and 2-mercaptobenzothiazole (MBT) against Ralstonia solanacearum. MBT showed the strongest antibacterial activity, followed by CDHB and DIMBOA, with minimum inhibitory concentrations (MICs) of 50, 100 and 200 mg/L, respectively, better than the BOA with 300 mg/L. These compounds also significantly affect bacterial growth, reduce biofilm formation, and inhibit swarming motility within 24 h. This paper is the first to report the anti-R. solanacearum activity of DIMBOA from Z. mays. The bioassay and pot experiment results suggested that DIMBOA and its derivatives exhibit potential as a new matrix structure of designing target bactericide or elicitor for controlling tobacco bacterial wilt. Further studies must evaluate the efficacy of DIMBOA and its derivatives in controlling bacterial wilt under natural field conditions where low inoculum concentrations exist.
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Affiliation(s)
- Bing Guo
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China.
| | - Yongqiang Zhang
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China.
| | - Shili Li
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China.
| | - Ting Lai
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China.
| | - Liang Yang
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China.
| | - Juanni Chen
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China.
| | - Wei Ding
- Laboratory of Natural Products Pesticides, College of Plant Protection, Southwest University, Chongqing 400715, China.
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