PoplarV1, Main, Exploration, bibRecord, 000078

The Two-Component System DcuS-DcuR Is Involved in Virulence and Stress Tolerance in the Poplar Canker Bacterium Lonsdalea populi.

Identifieur interne : 000078 ( Main/Exploration ); précédent : 000077; suivant : 000079

The Two-Component System DcuS-DcuR Is Involved in Virulence and Stress Tolerance in the Poplar Canker Bacterium Lonsdalea populi.

Auteurs : Zeyang Zheng [République populaire de Chine] ; Chaoying Deng [République populaire de Chine] ; Wei He [République populaire de Chine] ; Wei Qian [République populaire de Chine] ; Aining Li [République populaire de Chine]

Source :

Phytopathology [ 0031-949X ] ; 2020.

RBID : pubmed:32510274

Descripteurs français

KwdFr :
- Chine (MeSH), Europe (MeSH), Facteurs de transcription (génétique), Gammaproteobacteria (MeSH), Maladies des plantes (MeSH), Populus (métabolisme), Protéines Escherichia coli (génétique), Protéines Escherichia coli (métabolisme), Protéines de liaison à l'ADN (génétique), Régulation de l'expression des gènes bactériens (MeSH), Virulence (MeSH).
MESH :
- génétique : Facteurs de transcription, Protéines Escherichia coli, Protéines de liaison à l'ADN.
- métabolisme : Populus, Protéines Escherichia coli.
- Chine, Europe, Gammaproteobacteria, Maladies des plantes, Régulation de l'expression des gènes bactériens, Virulence.
Wicri :
- geographic : République populaire de Chine.

English descriptors

KwdEn :
- China (MeSH), DNA-Binding Proteins (genetics), Escherichia coli Proteins (genetics), Escherichia coli Proteins (metabolism), Europe (MeSH), Gammaproteobacteria (MeSH), Gene Expression Regulation, Bacterial (MeSH), Plant Diseases (MeSH), Populus (metabolism), Transcription Factors (genetics), Virulence (MeSH).
MESH :
- chemical , genetics : DNA-Binding Proteins, Escherichia coli Proteins, Transcription Factors.
- chemical , metabolism : Escherichia coli Proteins.
- geographic : China, Europe.
- metabolism : Populus.
- Gammaproteobacteria, Gene Expression Regulation, Bacterial, Plant Diseases, Virulence.

Abstract

The gram-negative bacterium Lonsdalea populi causes an emerging poplar (Populus × euramericana) canker resulting in severe losses to poplar production in China and Europe. Two-component signal transduction systems play important roles in the regulation of virulence and stress responses in phytopathogenic bacteria. We identified a two-component pair (Lqp2625-Lqp2624) in L. populi, highly homologous to DcuS-DcuR of Escherichia coli. Mutants lacking DcuS or DcuR displayed normal growth while their virulence on poplar twigs was impaired. An inability to produce flagella indicated that DcuS and DcuR are involved in biofilm formation and swimming motility. Moreover, the loss of DcuS or DcuR led to increased sensitivity to oxidative stress and chloramphenicol through downregulation of genes associated with catalases and the multidrug efflux pump, suggesting that the two-component pair contributes to cellular adaptation to oxidative and antibiotic stresses. We identified key domains and putative phosphorylation sites important for virulence and stress responses. Our findings reveal the functions of DcuS-DcuR in virulence and stress responses in L. populi and provide increasing evidence that two-component systems are crucial during the infection process and stress adaptation in bacteria.

DOI: 10.1094/PHYTO-03-20-0094-R
PubMed: 32510274

Affiliations:

Links toward previous steps (curation, corpus...)

to stream Main, to step Corpus: 000260
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Le document en format XML

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.</title>
<author><name sortKey="Zheng, Zeyang" sort="Zheng, Zeyang" uniqKey="Zheng Z" first="Zeyang" last="Zheng">Zeyang Zheng</name>
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<author><name sortKey="Deng, Chaoying" sort="Deng, Chaoying" uniqKey="Deng C" first="Chaoying" last="Deng">Chaoying Deng</name>
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<author><name sortKey="Qian, Wei" sort="Qian, Wei" uniqKey="Qian W" first="Wei" last="Qian">Wei Qian</name>
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<author><name sortKey="Li, Aining" sort="Li, Aining" uniqKey="Li A" first="Aining" last="Li">Aining Li</name>
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<series><title level="j">Phytopathology</title>
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<imprint><date when="2020" type="published">2020</date>
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<term>DNA-Binding Proteins (genetics)</term>
<term>Escherichia coli Proteins (genetics)</term>
<term>Escherichia coli Proteins (metabolism)</term>
<term>Europe (MeSH)</term>
<term>Gammaproteobacteria (MeSH)</term>
<term>Gene Expression Regulation, Bacterial (MeSH)</term>
<term>Plant Diseases (MeSH)</term>
<term>Populus (metabolism)</term>
<term>Transcription Factors (genetics)</term>
<term>Virulence (MeSH)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Chine (MeSH)</term>
<term>Europe (MeSH)</term>
<term>Facteurs de transcription (génétique)</term>
<term>Gammaproteobacteria (MeSH)</term>
<term>Maladies des plantes (MeSH)</term>
<term>Populus (métabolisme)</term>
<term>Protéines Escherichia coli (génétique)</term>
<term>Protéines Escherichia coli (métabolisme)</term>
<term>Protéines de liaison à l'ADN (génétique)</term>
<term>Régulation de l'expression des gènes bactériens (MeSH)</term>
<term>Virulence (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>DNA-Binding Proteins</term>
<term>Escherichia coli Proteins</term>
<term>Transcription Factors</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Escherichia coli Proteins</term>
</keywords>
<keywords scheme="MESH" type="geographic" xml:lang="en"><term>China</term>
<term>Europe</term>
</keywords>
<keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Facteurs de transcription</term>
<term>Protéines Escherichia coli</term>
<term>Protéines de liaison à l'ADN</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Populus</term>
<term>Protéines Escherichia coli</term>
</keywords>
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<term>Gene Expression Regulation, Bacterial</term>
<term>Plant Diseases</term>
<term>Virulence</term>
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<term>Europe</term>
<term>Gammaproteobacteria</term>
<term>Maladies des plantes</term>
<term>Régulation de l'expression des gènes bactériens</term>
<term>Virulence</term>
</keywords>
<keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>République populaire de Chine</term>
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<front><div type="abstract" xml:lang="en">The gram-negative bacterium <i>Lonsdalea populi</i>
 causes an emerging poplar (<i>Populus</i>
 × <i>euramericana</i>
) canker resulting in severe losses to poplar production in China and Europe. Two-component signal transduction systems play important roles in the regulation of virulence and stress responses in phytopathogenic bacteria. We identified a two-component pair (Lqp2625-Lqp2624) in <i>L. populi</i>
, highly homologous to DcuS-DcuR of <i>Escherichia coli</i>
. Mutants lacking <i>DcuS</i>
 or <i>DcuR</i>
 displayed normal growth while their virulence on poplar twigs was impaired. An inability to produce flagella indicated that <i>DcuS</i>
 and <i>DcuR</i>
 are involved in biofilm formation and swimming motility. Moreover, the loss of <i>DcuS</i>
 or <i>DcuR</i>
 led to increased sensitivity to oxidative stress and chloramphenicol through downregulation of genes associated with catalases and the multidrug efflux pump, suggesting that the two-component pair contributes to cellular adaptation to oxidative and antibiotic stresses. We identified key domains and putative phosphorylation sites important for virulence and stress responses. Our findings reveal the functions of DcuS-DcuR in virulence and stress responses in <i>L. populi</i>
 and provide increasing evidence that two-component systems are crucial during the infection process and stress adaptation in bacteria.</div>
</front>
</TEI>
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<DateCompleted><Year>2020</Year>
<Month>11</Month>
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<Month>11</Month>
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<Month>Nov</Month>
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<Title>Phytopathology</Title>
<ISOAbbreviation>Phytopathology</ISOAbbreviation>
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<ArticleTitle>The Two-Component System DcuS-DcuR Is Involved in Virulence and Stress Tolerance in the Poplar Canker Bacterium <i>Lonsdalea populi</i>
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<Abstract><AbstractText>The gram-negative bacterium <i>Lonsdalea populi</i>
 causes an emerging poplar (<i>Populus</i>
 × <i>euramericana</i>
) canker resulting in severe losses to poplar production in China and Europe. Two-component signal transduction systems play important roles in the regulation of virulence and stress responses in phytopathogenic bacteria. We identified a two-component pair (Lqp2625-Lqp2624) in <i>L. populi</i>
, highly homologous to DcuS-DcuR of <i>Escherichia coli</i>
. Mutants lacking <i>DcuS</i>
 or <i>DcuR</i>
 displayed normal growth while their virulence on poplar twigs was impaired. An inability to produce flagella indicated that <i>DcuS</i>
 and <i>DcuR</i>
 are involved in biofilm formation and swimming motility. Moreover, the loss of <i>DcuS</i>
 or <i>DcuR</i>
 led to increased sensitivity to oxidative stress and chloramphenicol through downregulation of genes associated with catalases and the multidrug efflux pump, suggesting that the two-component pair contributes to cellular adaptation to oxidative and antibiotic stresses. We identified key domains and putative phosphorylation sites important for virulence and stress responses. Our findings reveal the functions of DcuS-DcuR in virulence and stress responses in <i>L. populi</i>
 and provide increasing evidence that two-component systems are crucial during the infection process and stress adaptation in bacteria.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Zheng</LastName>
<ForeName>Zeyang</ForeName>
<Initials>Z</Initials>
<AffiliationInfo><Affiliation>Beijing Key Laboratory for Forest Pest Control, College of Forestry, Beijing Forestry University, Beijing, China.</Affiliation>
</AffiliationInfo>
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<Author ValidYN="Y"><LastName>Deng</LastName>
<ForeName>Chaoying</ForeName>
<Initials>C</Initials>
<AffiliationInfo><Affiliation>State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.</Affiliation>
</AffiliationInfo>
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<Author ValidYN="Y"><LastName>Li</LastName>
<ForeName>Aining</ForeName>
<Initials>A</Initials>
<Identifier Source="ORCID">http://orcid.org/0000-0003-0576-6876</Identifier>
<AffiliationInfo><Affiliation>Beijing Key Laboratory for Forest Pest Control, College of Forestry, Beijing Forestry University, Beijing, China.</Affiliation>
</AffiliationInfo>
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<Language>eng</Language>
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<MedlineTA>Phytopathology</MedlineTA>
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<KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Lonsdalea populi</Keyword>
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<Keyword MajorTopicYN="N">stress tolerance</Keyword>
<Keyword MajorTopicYN="N">two-component system</Keyword>
<Keyword MajorTopicYN="N">virulence</Keyword>
</KeywordList>
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<PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2020</Year>
<Month>6</Month>
<Day>9</Day>
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<Month>11</Month>
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<tree><country name="République populaire de Chine"><noRegion><name sortKey="Zheng, Zeyang" sort="Zheng, Zeyang" uniqKey="Zheng Z" first="Zeyang" last="Zheng">Zeyang Zheng</name>
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<name sortKey="Deng, Chaoying" sort="Deng, Chaoying" uniqKey="Deng C" first="Chaoying" last="Deng">Chaoying Deng</name>
<name sortKey="He, Wei" sort="He, Wei" uniqKey="He W" first="Wei" last="He">Wei He</name>
<name sortKey="Li, Aining" sort="Li, Aining" uniqKey="Li A" first="Aining" last="Li">Aining Li</name>
<name sortKey="Qian, Wei" sort="Qian, Wei" uniqKey="Qian W" first="Wei" last="Qian">Wei Qian</name>
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The Two-Component System DcuS-DcuR Is Involved in Virulence and Stress Tolerance in the Poplar Canker Bacterium Lonsdalea populi.

The Two-Component System DcuS-DcuR Is Involved in Virulence and Stress Tolerance in the Poplar Canker Bacterium Lonsdalea populi.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

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