The dctA gene of Pseudomonas chlororaphis O6 is under RpoN control and is required for effective root colonization and induction of systemic resistance
Abstract Transcription from the dctA gene, which encodes an organic acid transporter in the root-colonizing bacterium Pseudomonas chlororaphis O6, is under complex regulatory control. Promoter sequence analysis revealed an RpoN binding site. The regulation of transcript accumulation by the level of...
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| Veröffentlicht in: | FEMS microbiology letters 2006-03, Vol.256 (1), p.98-104 |
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| creator | Nam, Hyo Song Anderson, Anne J. Yang, Kwang Yeol Cho, Baik Ho Kim, Young Cheol |
| description | Abstract
Transcription from the dctA gene, which encodes an organic acid transporter in the root-colonizing bacterium Pseudomonas chlororaphis O6, is under complex regulatory control. Promoter sequence analysis revealed an RpoN binding site. The regulation of transcript accumulation by the level of ammonium ions in the growth medium confirmed RpoN regulation, even in the presence of glucose. A dctA mutant colonized tobacco roots to a lesser extent than the wild-type mutant during early seedling development. Colonization by the dctA mutant, as compared to the wild type, also reduced the level of systemically induced resistance against the soft rot pathogen Erwinia carotovora SCC1. We ascribe this reduced colonization to the inability of the mutant to utilize certain organic acid components in the root exudates. The dctA mutant failed to grow on succinate and fumarate, and showed reduced growth on malate. All altered properties of the mutant were complemented by the full-length dctA gene. We propose that organic acids in root exudates may provide important nutrient sources for the beneficial root-colonizing pseudomonad. |
| doi_str_mv | 10.1111/j.1574-6968.2006.00092.x |
| format | Article |
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Transcription from the dctA gene, which encodes an organic acid transporter in the root-colonizing bacterium Pseudomonas chlororaphis O6, is under complex regulatory control. Promoter sequence analysis revealed an RpoN binding site. The regulation of transcript accumulation by the level of ammonium ions in the growth medium confirmed RpoN regulation, even in the presence of glucose. A dctA mutant colonized tobacco roots to a lesser extent than the wild-type mutant during early seedling development. Colonization by the dctA mutant, as compared to the wild type, also reduced the level of systemically induced resistance against the soft rot pathogen Erwinia carotovora SCC1. We ascribe this reduced colonization to the inability of the mutant to utilize certain organic acid components in the root exudates. The dctA mutant failed to grow on succinate and fumarate, and showed reduced growth on malate. All altered properties of the mutant were complemented by the full-length dctA gene. We propose that organic acids in root exudates may provide important nutrient sources for the beneficial root-colonizing pseudomonad.</description><identifier>ISSN: 0378-1097</identifier><identifier>EISSN: 1574-6968</identifier><identifier>DOI: 10.1111/j.1574-6968.2006.00092.x</identifier><identifier>PMID: 16487325</identifier><identifier>CODEN: FMLED7</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Ammonium ; Ammonium Chloride - analysis ; Bacteria ; Bacterial Proteins - physiology ; Bacteriology ; Binding sites ; Biological and medical sciences ; Colonization ; Colony Count, Microbial - methods ; Control ; dicarboxylates ; Dicarboxylic Acid Transporters - genetics ; Dicarboxylic Acid Transporters - physiology ; Escherichia coli Proteins - genetics ; Escherichia coli Proteins - physiology ; Exudates ; Exudation ; Fundamental and applied biological sciences. Psychology ; Gene Expression Regulation, Bacterial - drug effects ; Gene Expression Regulation, Bacterial - physiology ; Genetic Complementation Test - methods ; Genetics ; Immunity, Innate - genetics ; Immunity, Innate - physiology ; induced systemic resistance ; Malate ; Metabolism. Enzymes ; Microbiology ; Molecular Sequence Data ; Mutants ; Mutation - physiology ; Nicotiana - physiology ; Nutrient sources ; organic acid transporter ; Organic acids ; Pectobacterium carotovorum - growth & development ; Plant Roots - microbiology ; Pseudomonas ; Pseudomonas - genetics ; Pseudomonas - growth & development ; Pseudomonas - physiology ; Pseudomonas chlororaphis ; Regulatory sequences ; Reverse Transcriptase Polymerase Chain Reaction - methods ; RNA Polymerase Sigma 54 - genetics ; RNA Polymerase Sigma 54 - physiology ; root colonization ; Seedlings ; Soft rot ; Tobacco ; Transcription</subject><ispartof>FEMS microbiology letters, 2006-03, Vol.256 (1), p.98-104</ispartof><rights>2006 Federation of European Microbiological Societies 2006</rights><rights>2006 INIST-CNRS</rights><rights>2006 Federation of European Microbiological Societies</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3982-3f2603b334ac16fa1641881d4eb13bbeb59403ee3b74fe3338be3b67ffe90ef73</citedby><cites>FETCH-LOGICAL-c3982-3f2603b334ac16fa1641881d4eb13bbeb59403ee3b74fe3338be3b67ffe90ef73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1574-6968.2006.00092.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1574-6968.2006.00092.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17666622$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16487325$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Nam, Hyo Song</creatorcontrib><creatorcontrib>Anderson, Anne J.</creatorcontrib><creatorcontrib>Yang, Kwang Yeol</creatorcontrib><creatorcontrib>Cho, Baik Ho</creatorcontrib><creatorcontrib>Kim, Young Cheol</creatorcontrib><title>The dctA gene of Pseudomonas chlororaphis O6 is under RpoN control and is required for effective root colonization and induction of systemic resistance</title><title>FEMS microbiology letters</title><addtitle>FEMS Microbiol Lett</addtitle><description>Abstract
Transcription from the dctA gene, which encodes an organic acid transporter in the root-colonizing bacterium Pseudomonas chlororaphis O6, is under complex regulatory control. Promoter sequence analysis revealed an RpoN binding site. The regulation of transcript accumulation by the level of ammonium ions in the growth medium confirmed RpoN regulation, even in the presence of glucose. A dctA mutant colonized tobacco roots to a lesser extent than the wild-type mutant during early seedling development. Colonization by the dctA mutant, as compared to the wild type, also reduced the level of systemically induced resistance against the soft rot pathogen Erwinia carotovora SCC1. We ascribe this reduced colonization to the inability of the mutant to utilize certain organic acid components in the root exudates. The dctA mutant failed to grow on succinate and fumarate, and showed reduced growth on malate. All altered properties of the mutant were complemented by the full-length dctA gene. We propose that organic acids in root exudates may provide important nutrient sources for the beneficial root-colonizing pseudomonad.</description><subject>Ammonium</subject><subject>Ammonium Chloride - analysis</subject><subject>Bacteria</subject><subject>Bacterial Proteins - physiology</subject><subject>Bacteriology</subject><subject>Binding sites</subject><subject>Biological and medical sciences</subject><subject>Colonization</subject><subject>Colony Count, Microbial - methods</subject><subject>Control</subject><subject>dicarboxylates</subject><subject>Dicarboxylic Acid Transporters - genetics</subject><subject>Dicarboxylic Acid Transporters - physiology</subject><subject>Escherichia coli Proteins - genetics</subject><subject>Escherichia coli Proteins - physiology</subject><subject>Exudates</subject><subject>Exudation</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gene Expression Regulation, Bacterial - drug effects</subject><subject>Gene Expression Regulation, Bacterial - physiology</subject><subject>Genetic Complementation Test - methods</subject><subject>Genetics</subject><subject>Immunity, Innate - genetics</subject><subject>Immunity, Innate - physiology</subject><subject>induced systemic resistance</subject><subject>Malate</subject><subject>Metabolism. Enzymes</subject><subject>Microbiology</subject><subject>Molecular Sequence Data</subject><subject>Mutants</subject><subject>Mutation - physiology</subject><subject>Nicotiana - physiology</subject><subject>Nutrient sources</subject><subject>organic acid transporter</subject><subject>Organic acids</subject><subject>Pectobacterium carotovorum - growth & development</subject><subject>Plant Roots - microbiology</subject><subject>Pseudomonas</subject><subject>Pseudomonas - genetics</subject><subject>Pseudomonas - growth & development</subject><subject>Pseudomonas - physiology</subject><subject>Pseudomonas chlororaphis</subject><subject>Regulatory sequences</subject><subject>Reverse Transcriptase Polymerase Chain Reaction - methods</subject><subject>RNA Polymerase Sigma 54 - genetics</subject><subject>RNA Polymerase Sigma 54 - physiology</subject><subject>root colonization</subject><subject>Seedlings</subject><subject>Soft rot</subject><subject>Tobacco</subject><subject>Transcription</subject><issn>0378-1097</issn><issn>1574-6968</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNqNkdtu1DAQhi1ERZfCKyBLiMsEHxInkbipqh6Qlhahcm05zpj1KmundgLdvkhfF6dZ0QuExFzYY833z8GDEKYkp8k-bnNaVkUmGlHnjBCRE0Ialt-_QKs_gZdoRXhVZ5Q01TF6HeM2QQUj4hU6pqKoK87KFXq83QDu9HiKf4AD7A3-GmHq_M47FbHe9D74oIaNjfhG4HROroOAvw3-GmvvxuB7rFw3RwLcTTZAh40PGIwBPdqfgIP3Y0J77-yDGq13C--6ST-9Usm4jyPsrE4poo2jchreoCOj-ghvD_cJ-n5xfnt2la1vLj-fna4zzZuaZdwwQXjLeaE0FUalwWhd066AlvK2hbZsCsIBeFsVBjjndZt8UaXuGgKm4ifo_ZJ3CP5ugjjKrZ-CSyUl40SUpaCVSFS9UDr4GAMYOQS7U2EvKZHzRuRWzh8v54-X80bk00bkfZK-OxSY2h10z8LDChLw4QCoqFVvQhrfxmeuEskYS9ynhftle9j_dwPy4ss6OUnOF7mfhn-Is7-7_w0dhLgQ</recordid><startdate>200603</startdate><enddate>200603</enddate><creator>Nam, Hyo Song</creator><creator>Anderson, Anne J.</creator><creator>Yang, Kwang Yeol</creator><creator>Cho, Baik Ho</creator><creator>Kim, Young Cheol</creator><general>Blackwell Publishing Ltd</general><general>Blackwell Science Ltd</general><general>Blackwell</general><general>Oxford University Press</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QL</scope><scope>7T7</scope><scope>7TK</scope><scope>7TM</scope><scope>7U9</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>RC3</scope></search><sort><creationdate>200603</creationdate><title>The dctA gene of Pseudomonas chlororaphis O6 is under RpoN control and is required for effective root colonization and induction of systemic resistance</title><author>Nam, Hyo Song ; Anderson, Anne J. ; Yang, Kwang Yeol ; Cho, Baik Ho ; Kim, Young Cheol</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3982-3f2603b334ac16fa1641881d4eb13bbeb59403ee3b74fe3338be3b67ffe90ef73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Ammonium</topic><topic>Ammonium Chloride - analysis</topic><topic>Bacteria</topic><topic>Bacterial Proteins - physiology</topic><topic>Bacteriology</topic><topic>Binding sites</topic><topic>Biological and medical sciences</topic><topic>Colonization</topic><topic>Colony Count, Microbial - methods</topic><topic>Control</topic><topic>dicarboxylates</topic><topic>Dicarboxylic Acid Transporters - genetics</topic><topic>Dicarboxylic Acid Transporters - physiology</topic><topic>Escherichia coli Proteins - genetics</topic><topic>Escherichia coli Proteins - physiology</topic><topic>Exudates</topic><topic>Exudation</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gene Expression Regulation, Bacterial - drug effects</topic><topic>Gene Expression Regulation, Bacterial - physiology</topic><topic>Genetic Complementation Test - methods</topic><topic>Genetics</topic><topic>Immunity, Innate - genetics</topic><topic>Immunity, Innate - physiology</topic><topic>induced systemic resistance</topic><topic>Malate</topic><topic>Metabolism. Enzymes</topic><topic>Microbiology</topic><topic>Molecular Sequence Data</topic><topic>Mutants</topic><topic>Mutation - physiology</topic><topic>Nicotiana - physiology</topic><topic>Nutrient sources</topic><topic>organic acid transporter</topic><topic>Organic acids</topic><topic>Pectobacterium carotovorum - growth & development</topic><topic>Plant Roots - microbiology</topic><topic>Pseudomonas</topic><topic>Pseudomonas - genetics</topic><topic>Pseudomonas - growth & development</topic><topic>Pseudomonas - physiology</topic><topic>Pseudomonas chlororaphis</topic><topic>Regulatory sequences</topic><topic>Reverse Transcriptase Polymerase Chain Reaction - methods</topic><topic>RNA Polymerase Sigma 54 - genetics</topic><topic>RNA Polymerase Sigma 54 - physiology</topic><topic>root colonization</topic><topic>Seedlings</topic><topic>Soft rot</topic><topic>Tobacco</topic><topic>Transcription</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nam, Hyo Song</creatorcontrib><creatorcontrib>Anderson, Anne J.</creatorcontrib><creatorcontrib>Yang, Kwang Yeol</creatorcontrib><creatorcontrib>Cho, Baik Ho</creatorcontrib><creatorcontrib>Kim, Young Cheol</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Neurosciences Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biological Science Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Genetics Abstracts</collection><jtitle>FEMS microbiology letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nam, Hyo Song</au><au>Anderson, Anne J.</au><au>Yang, Kwang Yeol</au><au>Cho, Baik Ho</au><au>Kim, Young Cheol</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The dctA gene of Pseudomonas chlororaphis O6 is under RpoN control and is required for effective root colonization and induction of systemic resistance</atitle><jtitle>FEMS microbiology letters</jtitle><addtitle>FEMS Microbiol Lett</addtitle><date>2006-03</date><risdate>2006</risdate><volume>256</volume><issue>1</issue><spage>98</spage><epage>104</epage><pages>98-104</pages><issn>0378-1097</issn><eissn>1574-6968</eissn><coden>FMLED7</coden><abstract>Abstract
Transcription from the dctA gene, which encodes an organic acid transporter in the root-colonizing bacterium Pseudomonas chlororaphis O6, is under complex regulatory control. Promoter sequence analysis revealed an RpoN binding site. The regulation of transcript accumulation by the level of ammonium ions in the growth medium confirmed RpoN regulation, even in the presence of glucose. A dctA mutant colonized tobacco roots to a lesser extent than the wild-type mutant during early seedling development. Colonization by the dctA mutant, as compared to the wild type, also reduced the level of systemically induced resistance against the soft rot pathogen Erwinia carotovora SCC1. We ascribe this reduced colonization to the inability of the mutant to utilize certain organic acid components in the root exudates. The dctA mutant failed to grow on succinate and fumarate, and showed reduced growth on malate. All altered properties of the mutant were complemented by the full-length dctA gene. We propose that organic acids in root exudates may provide important nutrient sources for the beneficial root-colonizing pseudomonad.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>16487325</pmid><doi>10.1111/j.1574-6968.2006.00092.x</doi><tpages>7</tpages></addata></record> |
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| ispartof | FEMS microbiology letters, 2006-03, Vol.256 (1), p.98-104 |
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| source | Oxford University Press Journals All Titles (1996-Current); MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Ammonium Ammonium Chloride - analysis Bacteria Bacterial Proteins - physiology Bacteriology Binding sites Biological and medical sciences Colonization Colony Count, Microbial - methods Control dicarboxylates Dicarboxylic Acid Transporters - genetics Dicarboxylic Acid Transporters - physiology Escherichia coli Proteins - genetics Escherichia coli Proteins - physiology Exudates Exudation Fundamental and applied biological sciences. Psychology Gene Expression Regulation, Bacterial - drug effects Gene Expression Regulation, Bacterial - physiology Genetic Complementation Test - methods Genetics Immunity, Innate - genetics Immunity, Innate - physiology induced systemic resistance Malate Metabolism. Enzymes Microbiology Molecular Sequence Data Mutants Mutation - physiology Nicotiana - physiology Nutrient sources organic acid transporter Organic acids Pectobacterium carotovorum - growth & development Plant Roots - microbiology Pseudomonas Pseudomonas - genetics Pseudomonas - growth & development Pseudomonas - physiology Pseudomonas chlororaphis Regulatory sequences Reverse Transcriptase Polymerase Chain Reaction - methods RNA Polymerase Sigma 54 - genetics RNA Polymerase Sigma 54 - physiology root colonization Seedlings Soft rot Tobacco Transcription |
| title | The dctA gene of Pseudomonas chlororaphis O6 is under RpoN control and is required for effective root colonization and induction of systemic resistance |
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