Repression of Pseudomonas putida phenanthrene-degrading activity by plant root extracts and exudates.
Identifieur interne : 004199 ( Main/Exploration ); précédent : 004198; suivant : 004200Repression of Pseudomonas putida phenanthrene-degrading activity by plant root extracts and exudates.
Auteurs : Jeremy A. Rentz [États-Unis] ; Pedro J J. Alvarez ; Jerald L. SchnoorSource :
- Environmental microbiology [ 1462-2912 ] ; 2004.
Descripteurs français
- KwdFr :
- Acides aminés (MeSH), Acétates (MeSH), Carbone (analyse), Dépollution biologique de l'environnement (effets des médicaments et des substances chimiques), Extraits de plantes (composition chimique), Extraits de plantes (métabolisme), Extraits de plantes (pharmacologie), Facteurs temps (MeSH), Glucose (MeSH), Magnoliopsida (métabolisme), Phénanthrènes (métabolisme), Pseudomonas putida (croissance et développement), Pseudomonas putida (métabolisme), Racines de plante (métabolisme).
- MESH :
- analyse : Carbone.
- composition chimique : Extraits de plantes.
- croissance et développement : Pseudomonas putida.
- effets des médicaments et des substances chimiques : Dépollution biologique de l'environnement.
- métabolisme : Extraits de plantes, Magnoliopsida, Phénanthrènes, Pseudomonas putida, Racines de plante.
- pharmacologie : Extraits de plantes.
- Acides aminés, Acétates, Facteurs temps, Glucose.
English descriptors
- KwdEn :
- Acetates (MeSH), Amino Acids (MeSH), Biodegradation, Environmental (drug effects), Carbon (analysis), Glucose (MeSH), Magnoliopsida (metabolism), Phenanthrenes (metabolism), Plant Extracts (chemistry), Plant Extracts (metabolism), Plant Extracts (pharmacology), Plant Roots (metabolism), Pseudomonas putida (growth & development), Pseudomonas putida (metabolism), Time Factors (MeSH).
- MESH :
- chemical , analysis : Carbon.
- chemical , chemistry : Plant Extracts.
- chemical , metabolism : Phenanthrenes, Plant Extracts.
- chemical , pharmacology : Plant Extracts.
- chemical : Acetates, Amino Acids, Glucose.
- drug effects : Biodegradation, Environmental.
- growth & development : Pseudomonas putida.
- metabolism : Magnoliopsida, Plant Roots, Pseudomonas putida.
- Time Factors.
Abstract
The phenanthrene-degrading activity (PDA) of Pseudomonas putida ATCC 17484 was repressed after incubation with plant root extracts of oat (Avena sativa), osage orange (Maclura pomifera), hybrid willow (Salix alba x matsudana), kou (Cordia subcordata) and milo (Thespesia populnea) and plant root exudates of oat (Avena sativa) and hybrid poplar (Populus deltoides x nigra DN34). Total organic carbon content of root extracts ranged from 103 to 395 mg l(-1). Characterization of root extracts identified acetate (not detectable to 8.0 mg l(-1)), amino acids (1.7-17.3 mg l(-1)) and glucose (1.6-14.0 mg l(-1)), indicating a complex mixture of substrates. Repression was also observed after exposure to potential root-derived substrates, including organic acids, glucose (carbohydrate) and glutamate (amino acid). Carbon source regulation (e.g. catabolite repression) was apparently responsible for the observed repression of P. putida PDA by root extracts. However, we showed that P. putida grows on root extracts and exudates as sole carbon and energy sources. Enhanced growth on root products may compensate for partial repression, because larger microbial populations are conducive to faster degradation rates. This would explain the commonly reported increase in phenanthrene removal in the rhizosphere.
DOI: 10.1111/j.1462-2920.2004.00589.x
PubMed: 15142245
Affiliations:
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Total organic carbon content of root extracts ranged from 103 to 395 mg l(-1). Characterization of root extracts identified acetate (not detectable to 8.0 mg l(-1)), amino acids (1.7-17.3 mg l(-1)) and glucose (1.6-14.0 mg l(-1)), indicating a complex mixture of substrates. Repression was also observed after exposure to potential root-derived substrates, including organic acids, glucose (carbohydrate) and glutamate (amino acid). Carbon source regulation (e.g. catabolite repression) was apparently responsible for the observed repression of P. putida PDA by root extracts. However, we showed that P. putida grows on root extracts and exudates as sole carbon and energy sources. Enhanced growth on root products may compensate for partial repression, because larger microbial populations are conducive to faster degradation rates. This would explain the commonly reported increase in phenanthrene removal in the rhizosphere.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15142245</PMID><DateCompleted><Year>2004</Year><Month>07</Month><Day>16</Day></DateCompleted><DateRevised><Year>2017</Year><Month>11</Month><Day>16</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">1462-2912</ISSN><JournalIssue CitedMedium="Print"><Volume>6</Volume><Issue>6</Issue><PubDate><Year>2004</Year><Month>Jun</Month></PubDate></JournalIssue><Title>Environmental microbiology</Title><ISOAbbreviation>Environ Microbiol</ISOAbbreviation></Journal><ArticleTitle>Repression of Pseudomonas putida phenanthrene-degrading activity by plant root extracts and exudates.</ArticleTitle><Pagination><MedlinePgn>574-83</MedlinePgn></Pagination><Abstract><AbstractText>The phenanthrene-degrading activity (PDA) of Pseudomonas putida ATCC 17484 was repressed after incubation with plant root extracts of oat (Avena sativa), osage orange (Maclura pomifera), hybrid willow (Salix alba x matsudana), kou (Cordia subcordata) and milo (Thespesia populnea) and plant root exudates of oat (Avena sativa) and hybrid poplar (Populus deltoides x nigra DN34). Total organic carbon content of root extracts ranged from 103 to 395 mg l(-1). Characterization of root extracts identified acetate (not detectable to 8.0 mg l(-1)), amino acids (1.7-17.3 mg l(-1)) and glucose (1.6-14.0 mg l(-1)), indicating a complex mixture of substrates. Repression was also observed after exposure to potential root-derived substrates, including organic acids, glucose (carbohydrate) and glutamate (amino acid). Carbon source regulation (e.g. catabolite repression) was apparently responsible for the observed repression of P. putida PDA by root extracts. However, we showed that P. putida grows on root extracts and exudates as sole carbon and energy sources. Enhanced growth on root products may compensate for partial repression, because larger microbial populations are conducive to faster degradation rates. This would explain the commonly reported increase in phenanthrene removal in the rhizosphere.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Rentz</LastName><ForeName>Jeremy A</ForeName><Initials>JA</Initials><AffiliationInfo><Affiliation>Civil and Environmental Engineering, University of Iowa, Iowa City, IA 52242, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Alvarez</LastName><ForeName>Pedro J J</ForeName><Initials>PJ</Initials></Author><Author ValidYN="Y"><LastName>Schnoor</LastName><ForeName>Jerald L</ForeName><Initials>JL</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Environ Microbiol</MedlineTA><NlmUniqueID>100883692</NlmUniqueID><ISSNLinking>1462-2912</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D000085">Acetates</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D000596">Amino Acids</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010616">Phenanthrenes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010936">Plant Extracts</NameOfSubstance></Chemical><Chemical><RegistryNumber>448J8E5BST</RegistryNumber><NameOfSubstance UI="C031181">phenanthrene</NameOfSubstance></Chemical><Chemical><RegistryNumber>7440-44-0</RegistryNumber><NameOfSubstance UI="D002244">Carbon</NameOfSubstance></Chemical><Chemical><RegistryNumber>IY9XDZ35W2</RegistryNumber><NameOfSubstance UI="D005947">Glucose</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000085" MajorTopicYN="N">Acetates</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000596" MajorTopicYN="N">Amino Acids</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001673" MajorTopicYN="N">Biodegradation, Environmental</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002244" MajorTopicYN="N">Carbon</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005947" MajorTopicYN="N">Glucose</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019684" MajorTopicYN="N">Magnoliopsida</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010616" MajorTopicYN="N">Phenanthrenes</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010936" MajorTopicYN="N">Plant Extracts</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D016958" MajorTopicYN="N">Pseudomonas putida</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013997" MajorTopicYN="N">Time Factors</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2004</Year><Month>5</Month><Day>15</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2004</Year><Month>7</Month><Day>17</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2004</Year><Month>5</Month><Day>15</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">15142245</ArticleId><ArticleId IdType="doi">10.1111/j.1462-2920.2004.00589.x</ArticleId><ArticleId IdType="pii">EMI589</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Iowa</li></region><settlement><li>Iowa City</li></settlement><orgName><li>Université de l'Iowa</li></orgName></list><tree><noCountry><name sortKey="Alvarez, Pedro J J" sort="Alvarez, Pedro J J" uniqKey="Alvarez P" first="Pedro J J" last="Alvarez">Pedro J J. Alvarez</name><name sortKey="Schnoor, Jerald L" sort="Schnoor, Jerald L" uniqKey="Schnoor J" first="Jerald L" last="Schnoor">Jerald L. Schnoor</name></noCountry><country name="États-Unis"><region name="Iowa"><name sortKey="Rentz, Jeremy A" sort="Rentz, Jeremy A" uniqKey="Rentz J" first="Jeremy A" last="Rentz">Jeremy A. Rentz</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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