Stimulation and molecular characterization of bacterial perchlorate degradation by plant-produced electron donors.
Identifieur interne : 003D20 ( Main/Exploration ); précédent : 003D19; suivant : 003D21Stimulation and molecular characterization of bacterial perchlorate degradation by plant-produced electron donors.
Auteurs : Joshua D. Shrout [États-Unis] ; Garrett C. Struckhoff ; Gene F. Parkin ; Jerald L. SchnoorSource :
- Environmental science & technology [ 0013-936X ] ; 2006.
Descripteurs français
- KwdFr :
- Alimentation en eau (MeSH), Anaérobiose (MeSH), Bactéries (métabolisme), Carbone (métabolisme), Dépollution biologique de l'environnement (MeSH), Facteurs temps (MeSH), Microbiologie du sol (MeSH), Perchlorates (métabolisme), Polluants du sol (analyse), Polluants du sol (métabolisme), Racines de plante (composition chimique), Racines de plante (métabolisme), Texas (MeSH), Électrons (MeSH).
- MESH :
- analyse : Polluants du sol.
- composition chimique : Racines de plante.
- métabolisme : Bactéries, Carbone, Perchlorates, Polluants du sol, Racines de plante.
- Alimentation en eau, Anaérobiose, Dépollution biologique de l'environnement, Facteurs temps, Microbiologie du sol, Texas, Électrons.
English descriptors
- KwdEn :
- Anaerobiosis (MeSH), Bacteria (metabolism), Biodegradation, Environmental (MeSH), Carbon (metabolism), Electrons (MeSH), Perchlorates (metabolism), Plant Roots (chemistry), Plant Roots (metabolism), Soil Microbiology (MeSH), Soil Pollutants (analysis), Soil Pollutants (metabolism), Texas (MeSH), Time Factors (MeSH), Water Supply (MeSH).
- MESH :
- chemical , analysis : Soil Pollutants.
- chemical , metabolism : Carbon, Perchlorates, Soil Pollutants.
- geographic : Texas.
- chemistry : Plant Roots.
- metabolism : Bacteria, Plant Roots.
- Anaerobiosis, Biodegradation, Environmental, Electrons, Soil Microbiology, Time Factors, Water Supply.
Abstract
Root homogenate from poplar trees (Populus deltoides x nigra DN34, Imperial Carolina) stimulated perchlorate degradation in microcosms of soil and water samples collected at a perchlorate contaminated site, the Longhorn Army Ammunition Plant (LHAAP), located outside Karnack, Texas. Direct use of root products by perchlorate-degrading bacteria was shown for the first time as six pureculture bacteria isolated from LHAAP perchlorate-degrading microcosms degraded perchlorate when given root products as the sole exogenous source of carbon and electron donor. Nonenriched environmental consortia were able to utilize root products for perchlorate degradation, regardless of prior exposure to perchlorate. Microcosms that contained perchlorate-contaminated groundwater (MW-3) or uncontaminated surface water (Harrison Bayou) as inoculum degraded approximately 240 and 160 mg L(-1) perchlorate, respectively, using root products (approximately 440 mg L(-1) as COD) over 38 days. The predominant bacterial species in these aqueous microcosms, identified by DGGE, depended only upon the source inoculum as similar sequences were obtained whether root products or lactate was the electron donor. Sequences from DGGE bands that matched species within Dechloromonas, a genus consisting of many perchlorate degraders, were identified in all perchlorate-degrading microcosms. This study demonstrates the ability of root products to drive perchlorate respiration by bacteria and the potential for successful achievement of perchlorate rhizodegradation using in situ phytoremediation.
DOI: 10.1021/es051130g
PubMed: 16433366
Affiliations:
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Le document en format XML
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Shrout</name><affiliation wicri:level="4"><nlm:affiliation>Department of Civil and Environmental Engineering, The University of Iowa, IA 52242, Iowa City, USA. joshua-shrout@uiowa.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Civil and Environmental Engineering, The University of Iowa, IA 52242, Iowa City</wicri:regionArea><orgName type="university">Université de l'Iowa</orgName><placeName><settlement type="city">Iowa City</settlement><region type="state">Iowa</region></placeName></affiliation></author><author><name sortKey="Struckhoff, Garrett C" sort="Struckhoff, Garrett C" uniqKey="Struckhoff G" first="Garrett C" last="Struckhoff">Garrett C. Struckhoff</name></author><author><name sortKey="Parkin, Gene F" sort="Parkin, Gene F" uniqKey="Parkin G" first="Gene F" last="Parkin">Gene F. Parkin</name></author><author><name sortKey="Schnoor, Jerald L" sort="Schnoor, Jerald L" uniqKey="Schnoor J" first="Jerald L" last="Schnoor">Jerald L. 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Shrout</name><affiliation wicri:level="4"><nlm:affiliation>Department of Civil and Environmental Engineering, The University of Iowa, IA 52242, Iowa City, USA. joshua-shrout@uiowa.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Civil and Environmental Engineering, The University of Iowa, IA 52242, Iowa City</wicri:regionArea><orgName type="university">Université de l'Iowa</orgName><placeName><settlement type="city">Iowa City</settlement><region type="state">Iowa</region></placeName></affiliation></author><author><name sortKey="Struckhoff, Garrett C" sort="Struckhoff, Garrett C" uniqKey="Struckhoff G" first="Garrett C" last="Struckhoff">Garrett C. Struckhoff</name></author><author><name sortKey="Parkin, Gene F" sort="Parkin, Gene F" uniqKey="Parkin G" first="Gene F" last="Parkin">Gene F. Parkin</name></author><author><name sortKey="Schnoor, Jerald L" sort="Schnoor, Jerald L" uniqKey="Schnoor J" first="Jerald L" last="Schnoor">Jerald L. Schnoor</name></author></analytic><series><title level="j">Environmental science & technology</title><idno type="ISSN">0013-936X</idno><imprint><date when="2006" type="published">2006</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anaerobiosis (MeSH)</term><term>Bacteria (metabolism)</term><term>Biodegradation, Environmental (MeSH)</term><term>Carbon (metabolism)</term><term>Electrons (MeSH)</term><term>Perchlorates (metabolism)</term><term>Plant Roots (chemistry)</term><term>Plant Roots (metabolism)</term><term>Soil Microbiology (MeSH)</term><term>Soil Pollutants (analysis)</term><term>Soil Pollutants (metabolism)</term><term>Texas (MeSH)</term><term>Time Factors (MeSH)</term><term>Water Supply (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Alimentation en eau (MeSH)</term><term>Anaérobiose (MeSH)</term><term>Bactéries (métabolisme)</term><term>Carbone (métabolisme)</term><term>Dépollution biologique de l'environnement (MeSH)</term><term>Facteurs temps (MeSH)</term><term>Microbiologie du sol (MeSH)</term><term>Perchlorates (métabolisme)</term><term>Polluants du sol (analyse)</term><term>Polluants du sol (métabolisme)</term><term>Racines de plante (composition chimique)</term><term>Racines de plante (métabolisme)</term><term>Texas (MeSH)</term><term>Électrons (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Soil Pollutants</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Carbon</term><term>Perchlorates</term><term>Soil Pollutants</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Texas</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Polluants du sol</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Bacteria</term><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Bactéries</term><term>Carbone</term><term>Perchlorates</term><term>Polluants du sol</term><term>Racines de plante</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Anaerobiosis</term><term>Biodegradation, Environmental</term><term>Electrons</term><term>Soil Microbiology</term><term>Time Factors</term><term>Water Supply</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Alimentation en eau</term><term>Anaérobiose</term><term>Dépollution biologique de l'environnement</term><term>Facteurs temps</term><term>Microbiologie du sol</term><term>Texas</term><term>Électrons</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Root homogenate from poplar trees (Populus deltoides x nigra DN34, Imperial Carolina) stimulated perchlorate degradation in microcosms of soil and water samples collected at a perchlorate contaminated site, the Longhorn Army Ammunition Plant (LHAAP), located outside Karnack, Texas. Direct use of root products by perchlorate-degrading bacteria was shown for the first time as six pureculture bacteria isolated from LHAAP perchlorate-degrading microcosms degraded perchlorate when given root products as the sole exogenous source of carbon and electron donor. Nonenriched environmental consortia were able to utilize root products for perchlorate degradation, regardless of prior exposure to perchlorate. Microcosms that contained perchlorate-contaminated groundwater (MW-3) or uncontaminated surface water (Harrison Bayou) as inoculum degraded approximately 240 and 160 mg L(-1) perchlorate, respectively, using root products (approximately 440 mg L(-1) as COD) over 38 days. The predominant bacterial species in these aqueous microcosms, identified by DGGE, depended only upon the source inoculum as similar sequences were obtained whether root products or lactate was the electron donor. Sequences from DGGE bands that matched species within Dechloromonas, a genus consisting of many perchlorate degraders, were identified in all perchlorate-degrading microcosms. This study demonstrates the ability of root products to drive perchlorate respiration by bacteria and the potential for successful achievement of perchlorate rhizodegradation using in situ phytoremediation.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">16433366</PMID><DateCompleted><Year>2006</Year><Month>04</Month><Day>17</Day></DateCompleted><DateRevised><Year>2019</Year><Month>07</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0013-936X</ISSN><JournalIssue CitedMedium="Print"><Volume>40</Volume><Issue>1</Issue><PubDate><Year>2006</Year><Month>Jan</Month><Day>01</Day></PubDate></JournalIssue><Title>Environmental science & technology</Title><ISOAbbreviation>Environ Sci Technol</ISOAbbreviation></Journal><ArticleTitle>Stimulation and molecular characterization of bacterial perchlorate degradation by plant-produced electron donors.</ArticleTitle><Pagination><MedlinePgn>310-7</MedlinePgn></Pagination><Abstract><AbstractText>Root homogenate from poplar trees (Populus deltoides x nigra DN34, Imperial Carolina) stimulated perchlorate degradation in microcosms of soil and water samples collected at a perchlorate contaminated site, the Longhorn Army Ammunition Plant (LHAAP), located outside Karnack, Texas. Direct use of root products by perchlorate-degrading bacteria was shown for the first time as six pureculture bacteria isolated from LHAAP perchlorate-degrading microcosms degraded perchlorate when given root products as the sole exogenous source of carbon and electron donor. Nonenriched environmental consortia were able to utilize root products for perchlorate degradation, regardless of prior exposure to perchlorate. Microcosms that contained perchlorate-contaminated groundwater (MW-3) or uncontaminated surface water (Harrison Bayou) as inoculum degraded approximately 240 and 160 mg L(-1) perchlorate, respectively, using root products (approximately 440 mg L(-1) as COD) over 38 days. The predominant bacterial species in these aqueous microcosms, identified by DGGE, depended only upon the source inoculum as similar sequences were obtained whether root products or lactate was the electron donor. Sequences from DGGE bands that matched species within Dechloromonas, a genus consisting of many perchlorate degraders, were identified in all perchlorate-degrading microcosms. This study demonstrates the ability of root products to drive perchlorate respiration by bacteria and the potential for successful achievement of perchlorate rhizodegradation using in situ phytoremediation.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Shrout</LastName><ForeName>Joshua D</ForeName><Initials>JD</Initials><AffiliationInfo><Affiliation>Department of Civil and Environmental Engineering, The University of Iowa, IA 52242, Iowa City, USA. joshua-shrout@uiowa.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Struckhoff</LastName><ForeName>Garrett C</ForeName><Initials>GC</Initials></Author><Author ValidYN="Y"><LastName>Parkin</LastName><ForeName>Gene F</ForeName><Initials>GF</Initials></Author><Author ValidYN="Y"><LastName>Schnoor</LastName><ForeName>Jerald L</ForeName><Initials>JL</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><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>United States</Country><MedlineTA>Environ Sci Technol</MedlineTA><NlmUniqueID>0213155</NlmUniqueID><ISSNLinking>0013-936X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010472">Perchlorates</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012989">Soil Pollutants</NameOfSubstance></Chemical><Chemical><RegistryNumber>7440-44-0</RegistryNumber><NameOfSubstance UI="D002244">Carbon</NameOfSubstance></Chemical><Chemical><RegistryNumber>VLA4NZX2P4</RegistryNumber><NameOfSubstance UI="C494474">perchlorate</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000693" MajorTopicYN="N">Anaerobiosis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001419" MajorTopicYN="N">Bacteria</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001673" MajorTopicYN="N">Biodegradation, Environmental</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002244" MajorTopicYN="N">Carbon</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D004583" MajorTopicYN="Y">Electrons</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010472" MajorTopicYN="N">Perchlorates</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="Y">Soil Microbiology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012989" MajorTopicYN="N">Soil Pollutants</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013781" MajorTopicYN="N" Type="Geographic">Texas</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013997" MajorTopicYN="N">Time Factors</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014881" MajorTopicYN="N">Water Supply</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2006</Year><Month>1</Month><Day>26</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2006</Year><Month>4</Month><Day>18</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2006</Year><Month>1</Month><Day>26</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">16433366</ArticleId><ArticleId IdType="doi">10.1021/es051130g</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="Parkin, Gene F" sort="Parkin, Gene F" uniqKey="Parkin G" first="Gene F" last="Parkin">Gene F. Parkin</name><name sortKey="Schnoor, Jerald L" sort="Schnoor, Jerald L" uniqKey="Schnoor J" first="Jerald L" last="Schnoor">Jerald L. Schnoor</name><name sortKey="Struckhoff, Garrett C" sort="Struckhoff, Garrett C" uniqKey="Struckhoff G" first="Garrett C" last="Struckhoff">Garrett C. Struckhoff</name></noCountry><country name="États-Unis"><region name="Iowa"><name sortKey="Shrout, Joshua D" sort="Shrout, Joshua D" uniqKey="Shrout J" first="Joshua D" last="Shrout">Joshua D. Shrout</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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