Article(id=1241376210282926177, tenantId=1146029695717560320, journalId=1192105938417971205, issueId=1241376204247331313, articleNumber=null, orderNo=null, doi=10.13343/j.cnki.wsxb.20230709, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1700409600000, receivedDateStr=2023-11-20, revisedDate=null, revisedDateStr=null, acceptedDate=1706198400000, acceptedDateStr=2024-01-26, onlineDate=1773896752185, onlineDateStr=2026-03-19, pubDate=1714752000000, pubDateStr=2024-05-04, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773896752185, onlineIssueDateStr=2026-03-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773896752185, creator=13701087609, updateTime=1773896752185, updator=13701087609, issue=Issue{id=1241376204247331313, tenantId=1146029695717560320, journalId=1192105938417971205, year='2024', volume='64', issue='5', pageStart='1331', pageEnd='1682', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1773896750747, creator=13701087609, updateTime=1773897643611, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241379949253284790, tenantId=1146029695717560320, journalId=1192105938417971205, issueId=1241376204247331313, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241379949253284791, tenantId=1146029695717560320, journalId=1192105938417971205, issueId=1241376204247331313, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1506, endPage=1520, ext={EN=ArticleExt(id=1241376213466402940, articleId=1241376210282926177, tenantId=1146029695717560320, journalId=1192105938417971205, language=EN, title=Role of repressor MogR in flagellar biosynthesis of
Listeria monocytogenes at low temperatures, columnId=1241045257748533520, journalTitle=Acta Microbiologica Sinica, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=
[Objective] Listeria monocytogenes (Lm) is a ubiquitous foodborne pathogen causing listeriosis.Lm can grow at low temperatures and thus may cause safety problems of refrigerated food and threaten the public health. The growth ofLm at low temperatures involves the inhibition of flagellar gene expression, which restricts flagellar biosynthesis. MogR is a transcriptional repressor which represses the expression of flagellar genes during intracellular infection and during extracellular growth ofLm at 37 ℃, resulting in no biosynthesis of flagella. Whereas MogR is deprived of repression function and the bacteria produce flagella during growth at 20–30 ℃. Our studies demonstrated thatLm significantly reduced the flagellar production at 4 ℃, but the molecular mechanism of which remained unclear. This study aims to reveal the relationship between the reduction of flagella and MogR repression at 4 ℃. [Methods] We constructed themogR-deleted mutant ΔmogR and the flagellin geneflaA-deleted mutant ΔflaA (as the control strain with no flagella), and their complementary strains cΔmogR and cΔflaA with theLm strain ATCC 19115 as the parental strain. Then, we analyzed the swarming motility, flagellar biosynthesis, and transcriptional levels of flagellar genes in above five strains at 4 ℃, 28 ℃, and 37 ℃, respectively. The growth curves of these strains were determined at 4 ℃, 28 ℃, and 37 ℃, respectively. [Results] Compared with the parental strain, ΔmogR showed significantly increased in motility, flagellar biosynthesis, and transcriptional levels of flagellar genes (P < 0.01, 0.001, and 0.001, respectively) at 4 ℃. The growth of ΔmogR markedly decreased compared with the parental strain (P < 0.05) at 4 ℃. The data of motility, flagellar biosynthesis, and transcriptional levels of flagellar genes in cΔmogR had no significant differences compared with the parental strain. [Conclusion] The reduction in flagellar biosynthesis was associated with the repression function of MogR inLm at 4 ℃. The reduction in flagellar biosynthesis was of benefit toLm proliferation at low temperatures. This study enriched our understanding of the mechanism ofLm growth at low temperatures.
, correspAuthors=Mei LIU, authorNote=null, correspAuthorsNote=
, copyrightStatement=Copyright ©2024 Acta Microbiologica Sinica. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Guojun WANG, Xia DENG, Shaowen LI, Mei LIU), CN=ArticleExt(id=1241376216410804552, articleId=1241376210282926177, tenantId=1146029695717560320, journalId=1192105938417971205, language=CN, title=低温下阻遏蛋白MogR对单增李斯特菌鞭毛形成的影响, columnId=1192149544164012138, journalTitle=微生物学报, columnName=研究报告, runingTitle=null, highlight=null, articleAbstract=
【目的】单核细胞增生李斯特菌(简称单增李斯特菌) (Listeria monocytogenes,Lm)是食源性病原菌,可以引发李斯特菌病(listeriosis)。Lm能在低温下生长,对冷藏食品的安全构成严重威胁,并对人类健康造成潜在的危害。Lm能低温生长与抑制鞭毛基因表达以减少鞭毛的合成有关。MogR是Lm鞭毛基因转录的阻遏蛋白,在机体里或37 ℃环境下具有阻遏作用,Lm不产生鞭毛;然而,当Lm处于20−30 ℃时MogR无阻遏作用,Lm产生鞭毛。我们研究发现在4 ℃生长条件下Lm鞭毛合成减少,但具体的分子机制尚未明确。本文探究在4 ℃下Lm鞭毛合成少与MogR起阻遏作用的关系。【方法】以Lm ATCC 19115为亲本株,分别构建了MogR和鞭毛丝蛋白FlaA的缺失株ΔmogR和ΔflaA (作为无鞭毛对照株)及其回补株cΔmogR和cΔflaA,测定了菌株在4、28、37 ℃时的运动性、鞭毛产生情况和鞭毛基因表达量,并对所构建的菌株进行了4、28、37 ℃时生长曲线的测定。【结果】在4 ℃时,mogR缺失后,菌株运动性显著强于亲本株(P < 0.01),鞭毛合成量显著多于亲本株(P < 0.001),鞭毛基因转录水平显著高于亲本株(P < 0.001);缺失株ΔmogR的生长能力显著弱于亲本株(P < 0.05)。回补株cΔmogR的运动能力、鞭毛合成量和鞭毛基因转录水平与亲本株相比,无显著性差异。【结论】在4 ℃时,Lm鞭毛产量少与MogR对鞭毛基因起转录抑制作用有关,低温条件下Lm能生长繁殖与MogR对鞭毛基因表达的抑制作用有关。本研究结果为揭示Lm低温生长机制提供了新的信息。
, correspAuthors=刘梅, authorNote=null, correspAuthorsNote=null, copyrightStatement=版权所有©《微生物学报》编辑部2024, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=DQZc0xvkUpUspynZabAsYg==, magXml=MHTmDZd02ZSL7rsTqGDi+Q==, pdfUrl=null, pdf=zan8l+0WPvfSB7Taj/pxuA==, pdfFileSize=1273772, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=sch6ycc+rwveL4i17Y5HNQ==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=esfL/9HH/aFCDQ2gJbNGUA==, mapNumber=null, authorCompany=null, fund=null, authors=
#These authors contributed equally to this work.
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Listeria monocytogenes), Keyword(id=1241446124091929449, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, orderNo=2, keyword=MogR), Keyword(id=1241446124196787054, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, orderNo=3, keyword=flagella), Keyword(id=1241446124293256054, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, orderNo=4, keyword=growth at low temperatures), Keyword(id=1241446124431668091, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, orderNo=1, keyword=单增李斯特菌), Keyword(id=1241446124549108609, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, orderNo=2, keyword=MogR), Keyword(id=1241446124712686468, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, orderNo=3, keyword=鞭毛), Keyword(id=1241446124842709899, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, orderNo=4, keyword=低温生长)], refs=[Reference(id=1241446133201957006, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, doi=10.1056/NEJMoa1215837, pmid=null, pmcid=null, year=2013, volume=369, issue=10, pageStart=944, pageEnd=953, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=null, journalName=The New England Journal of Medicine, refType=null, unstructuredReference=McCOLLUM JT, CRONQUIST AB, SILK BJ, JACKSON KA, O'CONNOR KA, COSGROVE S, GOSSACK JP, PARACHINI SS, JAIN NS, ETTESTAD P, IBRAHEEM M, CANTU V, JOSHI M, DuVERNOY T, FOGG NW Jr, GORNY JR, MOGEN KM, SPIRES C, TEITELL P, JOSEPH LA, et al.Multistate outbreak of listeriosis associated with cantaloupe[J].
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Listeria monocytogenes flagellar genes on operons[6-7]., figureFileSmall=BrbIOgwPs4W/c6sxy1FwJA==, figureFileBig=9i4ZR2BO5K6ua5YLZD8v6w==, tableContent=null), ArticleFig(id=1241446125341832094, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=图1, caption=
单增李斯特菌鞭毛基因操纵元[6-7], figureFileSmall=BrbIOgwPs4W/c6sxy1FwJA==, figureFileBig=9i4ZR2BO5K6ua5YLZD8v6w==, tableContent=null), ArticleFig(id=1241446125484438436, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Figure 2, caption=
Diagram for constructing the mutant ΔmogR., figureFileSmall=xzLVKCsX9VWwb+yBHBVZ7A==, figureFileBig=TKy/r87z6Jqv9JUCLx0kkw==, tableContent=null), ArticleFig(id=1241446127107634087, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=图2, caption=
缺失株ΔmogR构建流程图, figureFileSmall=xzLVKCsX9VWwb+yBHBVZ7A==, figureFileBig=TKy/r87z6Jqv9JUCLx0kkw==, tableContent=null), ArticleFig(id=1241446127225074608, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Figure 3, caption=
The swarming ability of strain ATCC 19115, ΔmogR, cΔmogR, ΔflaA and cΔflaA at 4 ℃, 28 ℃ and 37 ℃, respectively., figureFileSmall=4GLYfUnEmzPD2QMCJwv3AA==, figureFileBig=yL5jnoHAXAGTUJtl31t1+Q==, tableContent=null), ArticleFig(id=1241446127363486647, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=图3, caption=
菌株ATCC 19115、ΔmogR、cΔmogR、ΔflaA和cΔflaA分别在4、28、37 ℃下的运动能力, figureFileSmall=4GLYfUnEmzPD2QMCJwv3AA==, figureFileBig=yL5jnoHAXAGTUJtl31t1+Q==, tableContent=null), ArticleFig(id=1241446127573201853, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Figure 4, caption=
The motility zone diameters of strain ATCC 19115, ΔmogR, cΔmogR, ΔflaA and cΔflaA at 4 ℃ (A), 28 ℃ (B) and 37 ℃ (C), respectively.**:P < 0.01;*:P < 0.05., figureFileSmall=JJ3i3BDLMN/G2enNVWPHaA==, figureFileBig=onKQR0mo2dJWBzCkAol1YQ==, tableContent=null), ArticleFig(id=1241446127724196806, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=图4, caption=
菌株ATCC 19115、ΔmogR、cΔmogR、ΔflaA和cΔflaA分别在4 ℃ (A)、28 ℃ (B)和37 ℃ (C)下的运动圈直径大小, figureFileSmall=JJ3i3BDLMN/G2enNVWPHaA==, figureFileBig=onKQR0mo2dJWBzCkAol1YQ==, tableContent=null), ArticleFig(id=1241446127841637325, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Figure 5, caption=
Production of flagella in strain ATCC 19115, ΔmogR, cΔmogR, ΔflaA and cΔflaA at 4 ℃, 28 ℃ and 37 ℃, respectively, by transmission electron microscopy (TEM).The percentage (%) of bacterial amount within a population that produced at least one visible flagellum was shown at the bottom of each image.
, figureFileSmall=+2xYKWkuysWwSpTfhwZ+oA==, figureFileBig=3JYIKoUrda9H9M3pqFGM9A==, tableContent=null), ArticleFig(id=1241446127950689236, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=图5, caption=
透射电镜(TEM)下观察到的菌株ATCC 19115、ΔmogR、cΔmogR、ΔflaA和cΔflaA分别在4、28、37 ℃时的鞭毛生长情况显示在图像下方的数值是单位样品菌量中至少含有一根鞭毛的菌株的百分比
, figureFileSmall=+2xYKWkuysWwSpTfhwZ+oA==, figureFileBig=3JYIKoUrda9H9M3pqFGM9A==, tableContent=null), ArticleFig(id=1241446128059741147, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Figure 6, caption=
The graphs of the percentage of strain ATCC 19115, ΔmogR, cΔmogR, ΔflaA and cΔflaA at 4 ℃ (A), 28 ℃ (B) and 37 ℃ (C), respectively, within a population that produced at least one visible flagellum, and the graph of the percentage of each strain at three temperatures (D) by TEM.***:P < 0.001;*:P < 0.05; ns: No significant., figureFileSmall=XrzpHRqL5lJYtLaR3PBS6A==, figureFileBig=+0CmncjoDvlMO18EbwipJw==, tableContent=null), ArticleFig(id=1241446128172987361, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=图6, caption=
通过TEM观察的菌株ATCC 19115、ΔmogR、cΔmogR、ΔflaA和cΔflaA分别在4 ℃ (A)、28 ℃ (B)和37 ℃ (C)时的单位样品菌量中至少含有一根鞭毛的菌株的百分比柱状图及同一菌株在不同温度下的菌株的百分比柱状图(D), figureFileSmall=XrzpHRqL5lJYtLaR3PBS6A==, figureFileBig=+0CmncjoDvlMO18EbwipJw==, tableContent=null), ArticleFig(id=1241446128298816490, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Figure 7, caption=
Relative transcriptional expression levels of flagellin geneflaA.A: Relative transcriptional expression levels offlaA in ΔmogR, cΔmogR, ΔflaA and cΔflaA at 4 ℃, compared with the parental strain ATCC 19115. B: Relative transcriptional expression levels offlaA in ATCC 19115, ΔmogR and cΔmogR at 4 ℃ and 37 ℃, compared with at 28 ℃, respectively.***:P < 0.001;**:P < 0.01; ns: No significant.
, figureFileSmall=i80XYBE+tDodL14LnDpC3Q==, figureFileBig=pzso0rv3v6J7M8D8rSPGHw==, tableContent=null), ArticleFig(id=1241446128416257011, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=图7, caption=
鞭毛丝蛋白基因flaA的转录表达水平A:4 ℃条件下与亲本株ATCC 19115相比,ΔmogR、cΔmogR、ΔflaA和cΔflaA的flaA的相对表达量. B:与28 ℃相比,4 ℃和37 ℃条件下ATCC 19115、ΔmogR和cΔmogR的flaA的相对表达量
, figureFileSmall=i80XYBE+tDodL14LnDpC3Q==, figureFileBig=pzso0rv3v6J7M8D8rSPGHw==, tableContent=null), ArticleFig(id=1241446128571446262, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Figure 8, caption=
Relative transcriptional expression levels of flagellar genesfliN,flhB,flgE,fliM,flgK,fliF andfliI in ΔmogR and cΔmogR at 4 ℃ (A), 28 ℃ (B) and 37 ℃ (C), compared with the parental strain ATCC 19115, respectively.***:P < 0.001;**:P < 0.01., figureFileSmall=iPJ6PAOjFXBAxcazplQ5SQ==, figureFileBig=kpXTM21ewiKwiDblx2EoDA==, tableContent=null), ArticleFig(id=1241446128755995647, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=图8, caption=
ΔmogR和cΔmogR的鞭毛基因fliN、flhB、flgE、fliM、flgK、fliF和fliI在4 ℃ (A)、28 ℃ (B)和37 ℃ (C)条件下相比于亲本株ATCC 19115的相对转录表达水平, figureFileSmall=iPJ6PAOjFXBAxcazplQ5SQ==, figureFileBig=kpXTM21ewiKwiDblx2EoDA==, tableContent=null), ArticleFig(id=1241446128881823750, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Figure 9, caption=
Growth curves of ATCC 19115, ΔmogR, cΔmogR, ΔflaA and cΔflaA at 4 ℃ (A and B), 28 ℃ (C) and 37 ℃ (D)., figureFileSmall=LNm8HMNru77XMbWEOXes3g==, figureFileBig=9HVBYJz1hmVs9F9yliNeZg==, tableContent=null), ArticleFig(id=1241446129045401610, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=图9, caption=
ATCC 19115、ΔmogR、cΔmogR、ΔflaA和cΔflaA在4 ℃ (A和B)、28 ℃ (C)和37 ℃ (D)条件下的生长曲线, figureFileSmall=LNm8HMNru77XMbWEOXes3g==, figureFileBig=9HVBYJz1hmVs9F9yliNeZg==, tableContent=null), ArticleFig(id=1241446129188007953, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Figure 10, caption=
Area under curve (AUC) values of the growth curves of ATCC 19115, ΔmogR, cΔmogR, ΔflaA and cΔflaA at 4 ℃ (A), 28 ℃ (B) and 37 ℃ (C), respectively, and the differences of AUC (ΔAUC), compared with the parental strain ATCC 19115 (D).**:P < 0.01;*:P < 0.05; ns: No significant., figureFileSmall=YI3dE5jsJzqDQTD3zgNAkg==, figureFileBig=c3GAYODwy6tO/hhre2gHzQ==, tableContent=null), ArticleFig(id=1241446129284476950, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=图10, caption=
ATCC 19115、ΔmogR、cΔmogR、ΔflaA和cΔflaA在4 ℃ (A)、28 ℃ (B)和37 ℃ (C)条件下的生长曲线的曲线下面积值和与亲本株相比的曲线下面积差异ΔAUC (D), figureFileSmall=YI3dE5jsJzqDQTD3zgNAkg==, figureFileBig=c3GAYODwy6tO/hhre2gHzQ==, tableContent=null), ArticleFig(id=1241446129540329505, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Figure 11, caption=
The swarming ability (A) and motility zone diameters (B) ofLm strains ATCC 19115, ATCC 19111, YSP2019032612 and Lm210722566 at 4 ℃, 28 ℃ and 37 ℃, respectively.***:P < 0.001;**:P < 0.01., figureFileSmall=CKFjURUfspNeSZozbl4cuA==, figureFileBig=6OKmBmcuawkCKr4O88XFKA==, tableContent=null), ArticleFig(id=1241446129741656106, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=图11, caption=
Lm菌株ATCC 19115、ATCC 19111、YSP2019032612和Lm210722566分别在4、28、37 ℃下的运动能力(A)及运动圈的直径大小(B), figureFileSmall=CKFjURUfspNeSZozbl4cuA==, figureFileBig=6OKmBmcuawkCKr4O88XFKA==, tableContent=null), ArticleFig(id=1241446129922011191, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Figure 12, caption=
Relative transcriptional expression levels of flagellin geneflaA inLm strains ATCC 19115, ATCC 19111, YSP2019032612 and Lm210722566 at 4 ℃ and 37 ℃, compared with at 28 ℃, respectively.***:P < 0.001., figureFileSmall=6f4jDGD2JjbthjT54PCFuA==, figureFileBig=0oLKZ0Uu86cCO55CfX9u0Q==, tableContent=null), ArticleFig(id=1241446131515846717, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=图12, caption=
与28 ℃相比,4 ℃和37 ℃条件下Lm菌株ATCC 19115、ATCC 19111、YSP2019032612和Lm210722566的鞭毛丝蛋白基因flaA的相对表达量, figureFileSmall=6f4jDGD2JjbthjT54PCFuA==, figureFileBig=0oLKZ0Uu86cCO55CfX9u0Q==, tableContent=null), ArticleFig(id=1241446131738144832, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Table 1, caption=
Bacterial strains and plasmids used in this study
, figureFileSmall=null, figureFileBig=null, tableContent=
| Category | Name | Relevant features | Source |
| Strain | ATCC 19115 | Listeria monocytogenes, serotype 4b | Purchased from Guangdong Microbial Culture Center |
| ΔmogR | ThemogR deletion strain of ATCC 19115 | This study |
| ΔflaA | TheflaA deletion strain of ATCC 19115 | This study |
| cΔmogR | Complementary strain of ΔmogR | This study |
| cΔflaA | Complementary strain of ΔflaA | This study |
| Plasmid | pHT304-ts | A thermosensitive suicide vector with erythromycin and ampicillin resistance genes | Stored in this laboratory |
| pHT304 | A shuttle vector with erythromycin and ampicillin resistance genes | Stored in this laboratory |
| p2102N | The upstream and downstream ofmogR was cloned into pHT304-ts | This study |
| p2104 | The upstream and downstream offlaA was cloned into pHT304-ts | This study |
| p2201 | The gene ofmogR including its promoter was cloned into pHT304 | This study |
| p2202 | The gene offlaA including its promoter was cloned into pHT304 | This study |
), ArticleFig(id=1241446131897528399, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=表1, caption=
细菌菌株和质粒
, figureFileSmall=null, figureFileBig=null, tableContent=
| Category | Name | Relevant features | Source |
| Strain | ATCC 19115 | Listeria monocytogenes, serotype 4b | Purchased from Guangdong Microbial Culture Center |
| ΔmogR | ThemogR deletion strain of ATCC 19115 | This study |
| ΔflaA | TheflaA deletion strain of ATCC 19115 | This study |
| cΔmogR | Complementary strain of ΔmogR | This study |
| cΔflaA | Complementary strain of ΔflaA | This study |
| Plasmid | pHT304-ts | A thermosensitive suicide vector with erythromycin and ampicillin resistance genes | Stored in this laboratory |
| pHT304 | A shuttle vector with erythromycin and ampicillin resistance genes | Stored in this laboratory |
| p2102N | The upstream and downstream ofmogR was cloned into pHT304-ts | This study |
| p2104 | The upstream and downstream offlaA was cloned into pHT304-ts | This study |
| p2201 | The gene ofmogR including its promoter was cloned into pHT304 | This study |
| p2202 | The gene offlaA including its promoter was cloned into pHT304 | This study |
), ArticleFig(id=1241446132035940439, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Table 2, caption=
Primers used in this study
, figureFileSmall=null, figureFileBig=null, tableContent=
| Primer name | Oligonucleotide sequence (5′→3′) | Restriction site |
| The underline represents the restriction enzyme cleavage site. |
| mogR(L)-F | GCTCTAGATGACACCGTTCGAATATCATTATTGG | Xba I |
| mogR(L)-R | CACCCCTTCTAAAACAATCACATACCTCTCTATCC | |
| mogR(R)-F | TATGTGATTGTTTTAGAAGGGGTGGCACGAT | |
| mogR(R)-R | GGGGTACCTTTCAGCTATTATGGAAGCAGCTA | Kpn І |
| flaA(L)-F | CGGTCTAGACCAGAAAAACTATCGATTGGTT | Xba І |
| flaA(L)-R | GAATTTGATATGTTGTGTTTCCCTCCTACATTCG | |
| flaA(R)-F | GGGAAACACAACATATCAAATTCATTTATCGAACA | |
| flaA(R)-R | TGCGGTACCATTTTCCATTGCATGCGTTAAATC | Kpn І |
| mogR-F | CGGGATCCCACCTTTCACTCCCTTCATCAGATTAC | BamH I |
| mogR-R | GGGGTACCGGTATAAATTTCGATATACATCGTGCCACC | Kpn І |
| flaA-F | CGGGATCCACATAAAGGCGCAGGTGTTG | BamH I |
| flaA-R | GGGGTACCGGCTAAGGGTAAACAATGTTCGAT | Kpn І |
| pHT304-F | CAGGAAACAGCTATGACC | |
| pHT304-R | TGTAAAACGACGGCCAGT | |
| 16S rRNA-F | GATGCATAGCCGACCTGAGA |
| 16S rRNA-R | CTCCGTCAGACTTTCGTCCA | |
| fliN-qF | TCGCACGAGAAAAAGCGAAA | |
| fliN-qR | CGGAAAAGTGCTTCATTTTGGTC |
| flhB-qF | CTTGCGGATGTCGAAGCAAG | |
| flhB-qR | TGTCGGGTTGTTCACCACAA |
| flaA-qF | TCGTGCACTTCTAGGTGCTG | |
| flaA-qR | GCGGTGTTTGGTTTGCTTGA |
| flgE-qF | GCGGTGGCTACTTTCTCCAA | |
| flgE-qR | ATTCGCGGGACAAGTCTACG |
| fliM-qF | TGAGCGAGCGCAGACTTTTA | |
| fliM-qR | CAACACTGACAAGCGCCATC |
| flgK-qF | ACAAGCTGTGGATCAGACGG | |
| flgK-qR | AACGAAGCGGATTGTTTGGC |
| fliF-qF | TCGAAGGGACACTTTCCAGC | |
| fliF-qR | TTGAGGCGGTTCCTGATTCC |
| fliI-qF | AAAACGGCTCGATCACTGGT | |
| fliI-qR | CTAACGGAGCCGAGGACATC | |
), ArticleFig(id=1241446132228878429, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=表2, caption=
本研究所用引物
, figureFileSmall=null, figureFileBig=null, tableContent=
| Primer name | Oligonucleotide sequence (5′→3′) | Restriction site |
| The underline represents the restriction enzyme cleavage site. |
| mogR(L)-F | GCTCTAGATGACACCGTTCGAATATCATTATTGG | Xba I |
| mogR(L)-R | CACCCCTTCTAAAACAATCACATACCTCTCTATCC | |
| mogR(R)-F | TATGTGATTGTTTTAGAAGGGGTGGCACGAT | |
| mogR(R)-R | GGGGTACCTTTCAGCTATTATGGAAGCAGCTA | Kpn І |
| flaA(L)-F | CGGTCTAGACCAGAAAAACTATCGATTGGTT | Xba І |
| flaA(L)-R | GAATTTGATATGTTGTGTTTCCCTCCTACATTCG | |
| flaA(R)-F | GGGAAACACAACATATCAAATTCATTTATCGAACA | |
| flaA(R)-R | TGCGGTACCATTTTCCATTGCATGCGTTAAATC | Kpn І |
| mogR-F | CGGGATCCCACCTTTCACTCCCTTCATCAGATTAC | BamH I |
| mogR-R | GGGGTACCGGTATAAATTTCGATATACATCGTGCCACC | Kpn І |
| flaA-F | CGGGATCCACATAAAGGCGCAGGTGTTG | BamH I |
| flaA-R | GGGGTACCGGCTAAGGGTAAACAATGTTCGAT | Kpn І |
| pHT304-F | CAGGAAACAGCTATGACC | |
| pHT304-R | TGTAAAACGACGGCCAGT | |
| 16S rRNA-F | GATGCATAGCCGACCTGAGA |
| 16S rRNA-R | CTCCGTCAGACTTTCGTCCA | |
| fliN-qF | TCGCACGAGAAAAAGCGAAA | |
| fliN-qR | CGGAAAAGTGCTTCATTTTGGTC |
| flhB-qF | CTTGCGGATGTCGAAGCAAG | |
| flhB-qR | TGTCGGGTTGTTCACCACAA |
| flaA-qF | TCGTGCACTTCTAGGTGCTG | |
| flaA-qR | GCGGTGTTTGGTTTGCTTGA |
| flgE-qF | GCGGTGGCTACTTTCTCCAA | |
| flgE-qR | ATTCGCGGGACAAGTCTACG |
| fliM-qF | TGAGCGAGCGCAGACTTTTA | |
| fliM-qR | CAACACTGACAAGCGCCATC |
| flgK-qF | ACAAGCTGTGGATCAGACGG | |
| flgK-qR | AACGAAGCGGATTGTTTGGC |
| fliF-qF | TCGAAGGGACACTTTCCAGC | |
| fliF-qR | TTGAGGCGGTTCCTGATTCC |
| fliI-qF | AAAACGGCTCGATCACTGGT | |
| fliI-qR | CTAACGGAGCCGAGGACATC | |
), ArticleFig(id=1241446132337930341, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=EN, label=Table 3, caption=
The information of 8Listeria monocytogenes flagellar genes involved in this study
, figureFileSmall=null, figureFileBig=null, tableContent=
| Gene name | Operon No. | Function | References |
| flaA | Monocistronic | Flagellin protein | [12] |
| fliN | 394 | Flagellar motility switch protein FliN | [13] |
| flhB | 394 | Flagellar type Ⅲ secretion system protein FlhB | [14] |
| flgE | 397 | Flagellar hook protein FlgE | [13] |
| fliM | 397 | Flagellar motility switch protein FliM | [14] |
| flgK | 398 | Flagellar hook-related protein FlgK | [13] |
| fliF | 398 | Flagellar basal body M-ring protein FliF | [15] |
| fliI | 398 | Flagellin export ATPase FliI | [15] |
), ArticleFig(id=1241446132442787949, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1241376210282926177, language=CN, label=表3, caption=
本研究选择的8个单增李斯特菌鞭毛基因的信息
, figureFileSmall=null, figureFileBig=null, tableContent=
| Gene name | Operon No. | Function | References |
| flaA | Monocistronic | Flagellin protein | [12] |
| fliN | 394 | Flagellar motility switch protein FliN | [13] |
| flhB | 394 | Flagellar type Ⅲ secretion system protein FlhB | [14] |
| flgE | 397 | Flagellar hook protein FlgE | [13] |
| fliM | 397 | Flagellar motility switch protein FliM | [14] |
| flgK | 398 | Flagellar hook-related protein FlgK | [13] |
| fliF | 398 | Flagellar basal body M-ring protein FliF | [15] |
| fliI | 398 | Flagellin export ATPase FliI | [15] |
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