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Kurihara MNL, Santos INM, Eisen AKA, Caleiro GS, de Araújo J, de Sales RO, Pignatari AC, Salles MJ. Phenotypic and Genotypic Characterization of Cutibacterium acnes Isolated from Shoulder Surgery Reveals Insights into Genetic Diversity. Microorganisms 2023; 11:2594. [PMID: 37894252 PMCID: PMC10609031 DOI: 10.3390/microorganisms11102594] [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: 09/15/2023] [Revised: 10/11/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
Specific virulence factors that likely influence C. acnes invasion into deep tissues remain to be elucidated. Herein, we describe the frequency of C. acnes identification in deep tissue specimens of patients undergoing clean shoulder surgery and assess its phenotypic and genetic traits associated with virulence and antibiotic resistance patterns, compared with isolates from the skin of healthy volunteers. Multiple deep tissue specimens from the bone fragments, tendons, and bursa of 84 otherwise healthy patients undergoing primary clean-open and arthroscopic shoulder surgeries were aseptically collected. The overall yield of tissue sample cultures was 21.5% (55/255), with 11.8% (30/255) identified as C. acnes in 27.3% (23/84) of patients. Antibiotic resistance rates were low, with most strains expressing susceptibility to first-line antibiotics, while a few were resistant to penicillin and rifampicin. Phylotypes IB (73.3%) and II (23.3%) were predominant in deep tissue samples. Genomic analysis demonstrated differences in the pangenome of the isolates from the same clade. Even though strains displayed a range of pathogenic markers, such as biofilm formation, patients did not evolve to infection during the 1-year follow-up. This suggests that the presence of polyclonal C. acnes in multiple deep tissue samples does not necessarily indicate infection.
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Affiliation(s)
- Mariana Neri Lucas Kurihara
- Laboratório Especial de Microbiologia Clínica (LEMC), Departamento de Medicina, Escola Paulista de Medicina (EPM), Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo 04025-010, Brazil; (M.N.L.K.); (I.N.M.S.); (A.C.P.)
| | - Ingrid Nayara Marcelino Santos
- Laboratório Especial de Microbiologia Clínica (LEMC), Departamento de Medicina, Escola Paulista de Medicina (EPM), Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo 04025-010, Brazil; (M.N.L.K.); (I.N.M.S.); (A.C.P.)
| | - Ana Karolina Antunes Eisen
- Emerging Viruses Research Laboratory, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil; (A.K.A.E.); (G.S.C.); (J.d.A.)
| | - Giovana Santos Caleiro
- Emerging Viruses Research Laboratory, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil; (A.K.A.E.); (G.S.C.); (J.d.A.)
| | - Jansen de Araújo
- Emerging Viruses Research Laboratory, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil; (A.K.A.E.); (G.S.C.); (J.d.A.)
| | - Romário Oliveira de Sales
- Albert Einstein Research and Education Institute, Hospital Israelita Albert Einstein, Sao Paulo 05652-900, Brazil;
| | - Antônio Carlos Pignatari
- Laboratório Especial de Microbiologia Clínica (LEMC), Departamento de Medicina, Escola Paulista de Medicina (EPM), Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo 04025-010, Brazil; (M.N.L.K.); (I.N.M.S.); (A.C.P.)
| | - Mauro José Salles
- Laboratório Especial de Microbiologia Clínica (LEMC), Departamento de Medicina, Escola Paulista de Medicina (EPM), Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo 04025-010, Brazil; (M.N.L.K.); (I.N.M.S.); (A.C.P.)
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Zhang Y, Gu Y, Zheng Y, Wang Y, Nie L, Qiao R, He Y. Deletion of luxS gene mediated by λRed gene recombination technology reduces biofilm formation and stress resistance of Lactobacillus fermentum. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Li Y, Feng T, Wang Y. The role of bacterial signaling networks in antibiotics response and resistance regulation. MARINE LIFE SCIENCE & TECHNOLOGY 2022; 4:163-178. [PMID: 37073223 PMCID: PMC10077285 DOI: 10.1007/s42995-022-00126-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 01/07/2022] [Indexed: 05/03/2023]
Abstract
Excessive use of antibiotics poses a threat to public health and the environment. In ecosystems, such as the marine environment, antibiotic contamination has led to an increase in bacterial resistance. Therefore, the study of bacterial response to antibiotics and the regulation of resistance formation have become an important research field. Traditionally, the processes related to antibiotic responses and resistance regulation have mainly included the activation of efflux pumps, mutation of antibiotic targets, production of biofilms, and production of inactivated or passivation enzymes. In recent years, studies have shown that bacterial signaling networks can affect antibiotic responses and resistance regulation. Signaling systems mostly alter resistance by regulating biofilms, efflux pumps, and mobile genetic elements. Here we provide an overview of how bacterial intraspecific and interspecific signaling networks affect the response to environmental antibiotics. In doing so, this review provides theoretical support for inhibiting bacterial antibiotic resistance and alleviating health and ecological problems caused by antibiotic contamination.
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Affiliation(s)
- Yuying Li
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China
| | - Tao Feng
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China
| | - Yan Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
- Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China
- Laboratory for Marine Ecology and Environmental Science, National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071 China
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Probiotics: their action against pathogens can be turned around. Sci Rep 2021; 11:13247. [PMID: 34168166 PMCID: PMC8225825 DOI: 10.1038/s41598-021-91542-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 05/27/2021] [Indexed: 12/27/2022] Open
Abstract
Probiotics when applied in complex evolving (micro-)ecosystems, might be selectively beneficial or detrimental to pathogens when their prophylactic efficacies are prone to ambient interactions. Here, we document a counter-intuitive phenomenon that probiotic-treated zebrafish (Danio rerio) were respectively healthy at higher but succumbed at lower level of challenge with a pathogenic Vibrio isolate. This was confirmed by prominent dissimilarities in fish survival and histology. Based upon the profiling of the zebrafish microbiome, and the probiotic and the pathogen shared gene orthogroups (genetic niche overlaps in genomes), this consequently might have modified the probiotic metabolome as well as the virulence of the pathogen. Although it did not reshuffle the architecture of the commensal microbiome of the vertebrate host, it might have altered the probiotic-pathogen inter-genus and intra-species communications. Such in-depth analyses are needed to avoid counteractive phenomena of probiotics and to optimise their efficacies to magnify human and animal well-being. Moreover, such studies will be valuable to improve the relevant guidelines published by organisations such as FAO, OIE and WHO.
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Jiang L, Luo Y, Cao X, Liu W, Song G, Zhang Z. LuxS quorum sensing system mediating Lactobacillus plantarum probiotic characteristics. Arch Microbiol 2021; 203:4141-4148. [PMID: 34057545 DOI: 10.1007/s00203-021-02404-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 05/21/2021] [Accepted: 05/22/2021] [Indexed: 11/25/2022]
Abstract
Lactobacillus plantarum is one of common probiotics in fermented foods. Quorum sensing (QS) is a common communication way within bacteria. It is not clear whether the probiotic properties of L. plantarum mediated by QS. Here, Lb. plantarum YM-4-3 was examined for resistance of pH, bile, antimicrobial and luxS gene expression pattern. The study found that: (1) the supernatant of YM-4-3 had bacteriostatic effect to Escherichia coli O157:H7, Listeria monocytogenes and Staphylococcus aureus; (2) Lb. plantarum YM-4-3 shown tolerance property to the strongest acid culture that pH value of 3; (3) the bile tolerance of Lb. plantarum YM-4-3 was significant difference with the growth stage, the early exponential phase of the growth culture can tolerate bile of 0.4% (w/v), while the stationary growth stage can only tolerate bile of 0.2%; (4) Lb. plantarum YM-4-3 luxS gene was contrary expression along with the growth. (5) Compared with the wild-type strain, the adhesion ability of Lb. plantarum YM-4-3 ΔluxS was decreased obviously. These results showed that AI-2 LuxS quorum sensing system mediating Lb. plantarum acid, bile tolerance, antimicrobial and adhesion of probiotics.
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Affiliation(s)
- Liming Jiang
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Ningbo University, Ningbo, 315211, People's Republic of China.,Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
| | - Yiyong Luo
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China.
| | - Xuebin Cao
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Ningbo University, Ningbo, 315211, People's Republic of China.,Yantai Jinghai Marine Fisheries Co., Ltd, Yantai, People's Republic of China
| | - Wen Liu
- Department of Rheumatology Immunology, The First People's Hospital of Hefei, 230061, Hefei, People's Republic of China
| | - Gang Song
- Longhaixingang Science and Technology Co, Ltd, 121000, Jinzhou, People's Republic of China
| | - Zhizhen Zhang
- Lanzhou Inspection and Quarantine Co, Ltd, 730070, Lanzhou, People's Republic of China
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Li J, Wang Y, Du Y, Zhang H, Fan Q, Sun L, Yi L, Wang S, Wang Y. mRNA-Seq reveals the quorum sensing system luxS gene contributes to the environmental fitness of Streptococcus suis type 2. BMC Microbiol 2021; 21:111. [PMID: 33849451 PMCID: PMC8045309 DOI: 10.1186/s12866-021-02170-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 03/31/2021] [Indexed: 12/22/2022] Open
Abstract
Background Streptococcus suis type 2 (SS2) is an important zoonotic pathogen. We have previously reported the structure of LuxS protein and found that the luxS gene is closely related to biofilm, virulence gene expression and drug resistance of SS2. However, the mechanism of luxS mediated SS2 stress response is unclear. Therefore, this experiment performed stress response to luxS mutant (ΔluxS) and complement strain (CΔluxS), overexpression strain (luxS+) and wild-type SS2 strain HA9801, and analyzed the differential phenotypes in combination with transcriptome data. Results The results indicate that the luxS gene deletion causes a wide range of phenotypic changes, including chain length. RNA sequencing identified 278 lx-regulated genes, of which 179 were up-regulated and 99 were down-regulated. Differential genes focus on bacterial growth, stress response, metabolic mechanisms and drug tolerance. Multiple mitotic genes were down-regulated; while the ABC transporter system genes, cobalamin /Fe3+-iron carrier ABC transporter ATPase and oxidative stress regulators were up-regulated. The inactivation of the luxS gene caused a significant reduction in the growth and survival in the acid (pH = 3.0, 4.0, 5.0) and iron (100 mM iron chelator 2,2′-dipyridyl) stress environments. However, the mutant strain ΔluxS showed increased antioxidant activity to H2O2 (58.8 mmol/L). Conclusions The luxS gene in SS2 appears to play roles in iron metabolism and protective responses to acidic and oxidative environmental conditions. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-021-02170-w.
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Affiliation(s)
- Jinpeng Li
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China.,Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China
| | - Yuxin Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China.,Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China
| | - Yanbin Du
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China.,Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China
| | - Hui Zhang
- China Animal Health and Epidemiology Center, Qingdao, China
| | - Qingying Fan
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China.,Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China
| | - Liyun Sun
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China.,Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China
| | - Li Yi
- College of Life Science, Luoyang Normal University, Luoyang, China
| | - Shaohui Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China.
| | - Yang Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China. .,Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China.
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Research on the role of LuxS/AI-2 quorum sensing in biofilm of Leuconostoc citreum 37 based on complete genome sequencing. 3 Biotech 2021; 11:189. [PMID: 33927980 DOI: 10.1007/s13205-021-02747-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 03/15/2021] [Indexed: 12/19/2022] Open
Abstract
Leuconostoc citreum, a type of food-grade probiotic bacteria, plays an important role in food fermentation and intestinal probiotics. Biofilms help bacteria survive under adverse conditions, and LuxS/AI-2-dependent quorum sensing (QS) plays an important role in the regulation of their biofilm-forming activities. L. citreum 37 was a biofilm-forming strain isolated from dairy products. The aim of this study was to analyze genes involved in the LuxS/AI-2 system based on genome sequencing and biofilm formation of L. citreum 37. Genome assembly yielded two contigs (one chromosome and one plasmid), and the complete genome contained 1,946,279 base pairs (bps) with a G + C content of 38.91%. The genome sequence analysis showed that there were several pathways such as the two-component system, QS, and seven other signal pathways, and 26 genes (including luxS, pfs, and 24 other genes) may participate in QS related to biofilm formation. All these results showed that the LuxS/AI-2 system is complete in the genome of L. citreum 37. The quantitative polymerase chain reaction (qPCR) of pfs, luxS genes, and AI-2 production of L. citreum 37 in planktonic state and biofilm state showed that the expression of pfs and luxS genes was consistent with the production of AI-2 and was positively correlated with biofilm formation. After luxS of L. citreum 37 expressed in Escherichia coli BL21, AI-2 production was detected, suggesting that the luxS gene played an important role in AI-2 synthesis, Therefore, luxS may regulate the biofilm formation of L. citreum 37 by participating in AI-2 synthesis. It is projected that results of this study could help facilitate further understanding and application of L. citreum 37. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02747-2.
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Jingjing E, Rongze M, Zichao C, Caiqing Y, Ruixue W, Qiaoling Z, Zongbai H, Ruiyin S, Junguo W. Improving the freeze-drying survival rate of Lactobacillus plantarum LIP-1 by increasing biofilm formation based on adjusting the composition of buffer salts in medium. Food Chem 2020; 338:128134. [PMID: 33091996 DOI: 10.1016/j.foodchem.2020.128134] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/14/2020] [Accepted: 09/16/2020] [Indexed: 02/01/2023]
Abstract
Lactic acid bacteria can improve their resistance to adverse environments through the formation of biofilm. This study found that adding different buffer salts in culture medium had a great impact on the freeze-drying survival rate of the Lactobacillus plantarum LIP-1, which could be linked to biofilm formation. Transcriptome data showed that potassium ions in buffer salt increased the expression of the luxS gene in the LuxS/autoinducer-2 (AI-2) quorum sensing system and increase synthesis of the quorum sensing signal AI-2. The AI-2 signal molecules up-regulated the cysE gene, which helps to promote biofilm formation. By adding a biofilm inhibitor, d-galactose, and performing a real-time quantitative polymerase chain reaction experiment, we found that d-galactose could down-regulated the luxS and cysE genes, reduced biofilm formation, and decreased the freeze-drying survival rate. The results of this study showed that promoting biofilm formation using appropriate buffer salts may lead to better freeze-drying survival rates.
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Affiliation(s)
- E Jingjing
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China
| | - Ma Rongze
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China
| | - Chen Zichao
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China
| | - Yao Caiqing
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China
| | - Wang Ruixue
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China
| | - Zhang Qiaoling
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China
| | - He Zongbai
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China
| | - Sun Ruiyin
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China
| | - Wang Junguo
- Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, PR China.
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Liu CJ, Luo MY, Li QK, Deng G, Li XR, Yang E, Luo YY. Analysis of the antimicrobial activity of Lactobacillus plantarum YM-4-3: implications of suitable conditions for extending the shelf life of fermented soybean products. Food Funct 2019; 10:5282-5289. [PMID: 31465046 DOI: 10.1039/c9fo00672a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Lactobacillus (Lb.) plantarum is typically used as a starter culture in salt-fermented foods. Here we report 3-4% NaCl reducing the antimicrobial activity of Lb. plantarum strain YM-4-3, owing to the decrease of bacterial growth, plantaricin activity and expression levels of plantaricin biosynthesis-related genes (PBGs). Meanwhile, 1% NaCl promoted slightly the growth of YM-4-3 and up-regulated the expression of PBGs to the greatest level. The results from a spoilage experiment of fermented soybean products revealed that the 1% NaCl and YM-4-3 treatment group had the longest shelf life representing the minimum number of pathogenic bacteria and the lowest degree of mildew. Therefore, a combination of Lb. plantarum with a low concentration of salt, such as 1% NaCl, is a recommended condition for preparing fermented foods.
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Affiliation(s)
- Chen-Jian Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, Yunnan, PR China.
| | - Ming-Yue Luo
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, Yunnan, PR China.
| | - Qiang-Kun Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, Yunnan, PR China.
| | - Gang Deng
- School of Agriculture, Yunnan University, Kunming 650504, Yunnan, PR China
| | - Xiao-Ran Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, Yunnan, PR China.
| | - En Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, Yunnan, PR China.
| | - Yi-Yong Luo
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, Yunnan, PR China.
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Dao Y, Zhang K, Lu X, Lu Z, Liu C, Liu M, Luo Y. Role of Glucose and 2-Oxoglutarate/Malate Translocator (OMT1) in the Production of Phenyllactic Acid and p-Hydroxyphenyllactic Acid, Two Food-Borne Pathogen Inhibitors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:5820-5826. [PMID: 31060357 DOI: 10.1021/acs.jafc.9b01444] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This work aims to uncover how glucose affected the production of phenyllactic acid (PLA) and p-hydroxyphenyllactic acid ( p-OH-PLA). The highest yields of PLA (68.53 mg/L) and p-OH-PLA (50.39 mg/L) were observed after Lactobacillus plantarum strain YM-4-3 fermentation in media containing 30 and 10 g/L glucose, respectively. Additionally, the antimicrobial activity of YM-4-3 against food-borne pathogens and the NADH/NAD+ ratio were positively correlated with the production of PLA and p-OH-PLA, respectively. In addition, a 2-oxoglutarate/malate translocator coding gene ( Omt1) was selected based on the qPCR results, and its knockout mutant, compared with the wild-type strain YM-4-3, showed that the PLA and p-OH-PLA production was decreased by 1.37-6.99 and 1.53-1.59 times, respectively. This result indicated that OMT1 was involved in the biosynthesis of PLA and p-OH-PLA. To conclude, this study suggests that glucose, NADH/NAD+ ratio and/or the Omt1 gene, PLA, and p-OH-PLA production, and antimicrobial activity contribute to a cause-and-effect relationship.
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Affiliation(s)
- Ya Dao
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Repbulic of China
| | - Ke Zhang
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Repbulic of China
| | - Xiafei Lu
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Repbulic of China
| | - Zebao Lu
- Department of Laboratory Medicine , Chuxiong Medical College , Chuxiong 675005 , People's Repbulic of China
| | - Chenjian Liu
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Repbulic of China
| | - Min Liu
- Shandong Tobacco Monopoly Bureau (Company) , Jinan 250101 , People's Repbulic of China
| | - Yiyong Luo
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Repbulic of China
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