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Shi J, Zhang J, Sun D, Zhao L, Chi Y, Gao C, Wang Y, Wang C. Protein profile analysis of tension wood development in response to artificial bending and gravitational stimuli in Betula platyphylla. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 339:111957. [PMID: 38122834 DOI: 10.1016/j.plantsci.2023.111957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 12/04/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023]
Abstract
Betula platyphylla Suk (birch) is an excellent short-term hardwood species with growth and wood characteristics well suited to wood industries. To investigate the molecular mechanism of wood development in birch, a tension wood (TW) induced system was used to explore the regulatory mechanism at the protein level and identify the key proteins involved in xylem development in birch. The results of dyeing with Safranin O-Fast Green indicated that the cellulose content of TW was significantly higher than that of opposite wood (OW) or normal wood (NW), and the lignin content in TW was significantly lower than that in OW and NW after artificial bending of birch stems. Protein profile analysis of TW, NW and OW by iTRAQ revealed that there were 639 and 460 differentially expressed proteins (DEPs) between TW/OW and TW/NW, respectively. The DEPs were mainly enriched in tyrosine metabolism, glycolysis/gluconeogenesis, phenylalanine and tyrosine metabolism, phenylpropanoid and pyruvate metabolism, the pentose phosphate pathway, the citrate cycle (TCA cycle), fructose and mannose metabolism, carbon fixation in photosynthetic organisms, fatty acid biosynthesis, photosynthesis proteins and other pathways. The proteins in the citrate cycle were upregulated. The expression levels of PGI, PGM and FRK proteins related to cellulose synthesis increased and the expression levels of PAL, 4CL and COMT related to lignin synthesis decreased, leading to an increase in cellulose content and decreased lignin levels in TW. PPI analysis revealed that key DEPs interact with each other, indicating that these proteins form complexes to implement this function, which may provide important insights for wood formation at the molecular level.
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Affiliation(s)
- Jingjing Shi
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin 150040, China
| | - Jiawei Zhang
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin 150040, China
| | - Dan Sun
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin 150040, China
| | - Leifei Zhao
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin 150040, China
| | - Yao Chi
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin 150040, China
| | - Caiqiu Gao
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin 150040, China
| | - Yucheng Wang
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin 150040, China
| | - Chao Wang
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin 150040, China.
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Jiang H, Wang Z, Jia AQ. Methyl gallate from Camellia nitidissima Chi flowers reduces quorum sensing related virulence and biofilm formation against Aeromonas hydrophila. BIOFOULING 2024; 40:64-75. [PMID: 38373897 DOI: 10.1080/08927014.2024.2316611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 02/02/2024] [Indexed: 02/21/2024]
Abstract
Aeromonas hydrophila, a Gram-negative zoonotic bacterium, causes high mortality in fish farming and immunocompromised patients. This study aimed to extract methyl gallate (MG) from the flowers of Camellia nitidissima Chi and evaluate its potential as a quorum sensing inhibitor (QSI) against Aeromonas hydrophila SHAe 115. MG reduced QS-associated virulence factors, including hemolysis, protease, and lipase, while impairing swimming motility and biofilm formation. Additionally, MG down-regulated positive regulatory genes (ahyR, fleQ) and up-regulated negative regulators (litR, fleN). This highlights MG's promise as a potent QSI for A. hydrophila SHAe 115, advancing strategies against infections in aquaculture and human health.
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Affiliation(s)
- Huan Jiang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, China
- Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Zhennan Wang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Ai-Qun Jia
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, China
- Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
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Verbeke J, De Bolle X, Arnould T. To eat or not to eat mitochondria? How do host cells cope with mitophagy upon bacterial infection? PLoS Pathog 2023; 19:e1011471. [PMID: 37410705 DOI: 10.1371/journal.ppat.1011471] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023] Open
Abstract
Mitochondria fulfil a plethora of cellular functions ranging from energy production to regulation of inflammation and cell death control. The fundamental role of mitochondria makes them a target of choice for invading pathogens, with either an intracellular or extracellular lifestyle. Indeed, the modulation of mitochondrial functions by several bacterial pathogens has been shown to be beneficial for bacterial survival inside their host. However, so far, relatively little is known about the importance of mitochondrial recycling and degradation pathways through mitophagy in the outcome (success or failure) of bacterial infection. On the one hand, mitophagy could be considered as a defensive response triggered by the host upon infection to maintain mitochondrial homeostasis. However, on the other hand, the pathogen itself may initiate the host mitophagy to escape from mitochondrial-mediated inflammation or antibacterial oxidative stress. In this review, we will discuss the diversity of various mechanisms of mitophagy in a general context, as well as what is currently known about the different bacterial pathogens that have developed strategies to manipulate the host mitophagy.
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Affiliation(s)
- Jérémy Verbeke
- Research Unit in Cell Biology, Laboratory of Biochemistry and Cell Biology URBC)-Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - Xavier De Bolle
- Research Unit in Microorganisms Biology (URBM)-Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - Thierry Arnould
- Research Unit in Cell Biology, Laboratory of Biochemistry and Cell Biology URBC)-Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
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Shi Y, Liao C, Dai F, Zhang Y, Li C, Liang W. Vibrio splendidus Fur regulates virulence gene expression, swarming motility, and biofilm formation, affecting its pathogenicity in Apostichopus japonicus. Front Vet Sci 2023; 10:1207831. [PMID: 37342622 PMCID: PMC10277475 DOI: 10.3389/fvets.2023.1207831] [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: 04/18/2023] [Accepted: 05/16/2023] [Indexed: 06/23/2023] Open
Abstract
Vibrio splendidus is an opportunistic pathogen that causes skin ulcer syndrome and results in huge losses to the Apostichopus japonicus breeding industry. Ferric uptake regulator (Fur) is a global transcription factor that affects varieties of virulence-related functions in pathogenic bacteria. However, the role of the V. splendidus fur (Vsfur) gene in the pathogenesis of V. splendidus remains unclear. Hence, we constructed a Vsfur knock-down mutant of the V. splendidus strain (MTVs) to investigate the role of the gene in the effect of biofilm, swarming motility, and virulence on A. japonicus. The result showed that the growth curves of the wild-type V. splendidus strain (WTVs) and MTVs were almost consistent. Compared with WTVs, the significant increases in the transcription of the virulence-related gene Vshppd mRNA were 3.54- and 7.33-fold in MTVs at the OD600 of 1.0 and 1.5, respectively. Similarly, compared with WTVs, the significant increases in the transcription of Vsm mRNA were 2.10- and 15.92-fold in MTVs at the OD600 of 1.0 and 1.5, respectively. On the contrary, the mRNA level of the flagellum assembly gene Vsflic was downregulated 0.56-fold in MTVs at the OD600 of 1.0 compared with the WTVs. MTVs caused delayed disease onset time and reduced A. japonicus mortality. The median lethal doses of WTVs and MTVs were 9.116 × 106 and 1.658 × 1011 CFU·ml-1, respectively. Compared with WTVs, the colonization abilities of MTVs to the muscle, intestine, tentacle, and coelomic fluid of A. japonicus were significantly reduced. Correspondingly, the swarming motility and biofilm formation in normal and iron-replete conditions were remarkably decreased compared with those of WTVs. Overall, these results demonstrate that Vsfur contributes to the pathogenesis of V. splendidus by regulating virulence-related gene expression and affecting its swarming and biofilm formation abilities.
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Affiliation(s)
- Yue Shi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang, China
| | - Changyu Liao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang, China
| | - Fa Dai
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang, China
| | - Yiwei Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang, China
| | - Chenghua Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang, China
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Weikang Liang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang, China
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Dai F, Guo M, Shao Y, Li C. Novel secreted STPKLRR from Vibrio splendidus AJ01 promotes pathogen internalization via mediating tropomodulin phosphorylation dependent cytoskeleton rearrangement. PLoS Pathog 2023; 19:e1011419. [PMID: 37216400 DOI: 10.1371/journal.ppat.1011419] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 05/11/2023] [Indexed: 05/24/2023] Open
Abstract
We previously demonstrated that the flagellin of intracellular Vibrio splendidus AJ01 could be specifically identified by tropomodulin (Tmod) and further mediate p53-dependent coelomocyte apoptosis in the sea cucumber Apostichopus japonicus. In higher animals, Tmod serves as a regulator in stabilizing the actin cytoskeleton. However, the mechanism on how AJ01 breaks the AjTmod-stabilized cytoskeleton for internalization remains unclear. Here, we identified a novel AJ01 Type III secretion system (T3SS) effector of leucine-rich repeat-containing serine/threonine-protein kinase (STPKLRR) with five LRR domains and a serine/threonine kinase (STYKc) domain, which could specifically interact with tropomodulin domain of AjTmod. Furthermore, we found that STPKLRR directly phosphorylated AjTmod at serine 52 (S52) to reduce the binding stability between AjTmod and actin. After AjTmod dissociated from actin, the F-actin/G-actin ratio decreased to induce cytoskeletal rearrangement, which in turn promoted the internalization of AJ01. The STPKLRR knocked out strain could not phosphorylated AjTmod and displayed lower internalization capacity and pathogenic effect compared to AJ01. Overall, we demonstrated for the first time that the T3SS effector STPKLRR with kinase activity was a novel virulence factor in Vibrio and mediated self-internalization by targeting host AjTmod phosphorylation dependent cytoskeleton rearrangement, which provided a candidate target to control AJ01 infection in practice.
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Affiliation(s)
- Fa Dai
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, PR China
| | - Ming Guo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, PR China
| | - Yina Shao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, PR China
| | - Chenghua Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, PR China
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, PR China
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Jiang G, Li Y, Zhang J, Li W, Dang W, Zhang W. Proteomic analysis of the initial wake up of vibrio splendidus persister cells. World J Microbiol Biotechnol 2023; 39:116. [PMID: 36918451 DOI: 10.1007/s11274-023-03559-7] [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: 09/21/2022] [Accepted: 02/27/2023] [Indexed: 03/16/2023]
Abstract
Vibrio splendidus is a ubiquitous pathogen that causes various diseases in aquaculture with a wide range of hosts. In our previous studies, we showed that L-glutamic acid was the optimal carbon source that could revive V. splendidus persister cells. In our present study, single cell observation under microscopy showed that V. splendidus could revive using L-glutamic acid as carbon source. A proteomic analysis was carried out to further illustrate the initial wake up of persister cells with L-glutamic acid. To collect the initially revived cells, SDS-PAGE was used to determine the revived time. The total proteins from the persister cells and the revived cells were analyzed using LC‒MS/MS. A total of 106 proteins, including 42 downregulated proteins and 64 upregulated proteins, were identified. GO analysis of the differentially expressed proteins (DEPs) showed that biological processes, including protein complex assembly, protein oligomerization, and arginine metabolism; cellular components, including extracellular membrane, plasma membrane and ribosome; and molecular functions, including the activities of arginine binding and structural constituent of ribosome, were enriched. KEGG analysis showed that lipopolysaccharide biosynthesis, porphyrin and chlorophyll metabolism, and peptidoglycan biosynthesis were upregulated, while the ribosome was downregulated. This is the first time to study the initial wake up of persister cells based on proteomic analysis, and the results revealed the main pathways involved in the early resuscitation of V. splendidus persister cells.
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Affiliation(s)
- Guohua Jiang
- Key Laboratory of Aquacultral Biotechnology Ministry of Education, Ningbo University, 169 Qixingnan Road, Beilun District, Ningbo, 315832, People's Republic of China
- School of Marine Sciences, Ningbo University, 169 Qixingnan Road, Beilun District, Ningbo, 315832, People's Republic of China
| | - Ya Li
- Key Laboratory of Aquacultral Biotechnology Ministry of Education, Ningbo University, 169 Qixingnan Road, Beilun District, Ningbo, 315832, People's Republic of China
- School of Marine Sciences, Ningbo University, 169 Qixingnan Road, Beilun District, Ningbo, 315832, People's Republic of China
| | - Jinxia Zhang
- Key Laboratory of Aquacultral Biotechnology Ministry of Education, Ningbo University, 169 Qixingnan Road, Beilun District, Ningbo, 315832, People's Republic of China
- School of Marine Sciences, Ningbo University, 169 Qixingnan Road, Beilun District, Ningbo, 315832, People's Republic of China
| | - Weisheng Li
- Key Laboratory of Aquacultral Biotechnology Ministry of Education, Ningbo University, 169 Qixingnan Road, Beilun District, Ningbo, 315832, People's Republic of China
- School of Marine Sciences, Ningbo University, 169 Qixingnan Road, Beilun District, Ningbo, 315832, People's Republic of China
| | - Wei Dang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, People's Republic of China
| | - Weiwei Zhang
- Key Laboratory of Aquacultral Biotechnology Ministry of Education, Ningbo University, 169 Qixingnan Road, Beilun District, Ningbo, 315832, People's Republic of China.
- School of Marine Sciences, Ningbo University, 169 Qixingnan Road, Beilun District, Ningbo, 315832, People's Republic of China.
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Jiang C, Kasai H, Mino S, Romalde JL, Sawabe T. The pan‐genome of Splendidus clade species in the family
Vibrionaceae
: insights into evolution, adaptation, and pathogenicity. Environ Microbiol 2022; 24:4587-4606. [DOI: 10.1111/1462-2920.16209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 09/13/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Chunqi Jiang
- Laboratory of Microbiology, Faculty of Fisheries Sciences Hokkaido University Hakodate Japan
| | - Hisae Kasai
- Laboratory of Marine Biotechnology and Microbiology, Faculty of Fisheries Sciences Hokkaido University Hakodate Japan
| | - Sayaka Mino
- Laboratory of Microbiology, Faculty of Fisheries Sciences Hokkaido University Hakodate Japan
| | - Jesús L. Romalde
- Departamento de Microbiología y Parasitología, CRETUS & CIBUS‐Facultad de Biología. Universidade de Santiago de Compostela Spain
| | - Tomoo Sawabe
- Laboratory of Microbiology, Faculty of Fisheries Sciences Hokkaido University Hakodate Japan
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Vibrio splendidus infection induces dysbiosis in the blue mussel and favors pathobiontic bacteria. Microbiol Res 2022; 261:127078. [DOI: 10.1016/j.micres.2022.127078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/11/2022] [Accepted: 05/22/2022] [Indexed: 11/15/2022]
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