Degradation, phytoprotection and phytoremediation of phenanthrene by endophyte Pseudomonas putida, PD1.
Identifieur interne : 002298 ( Main/Exploration ); précédent : 002297; suivant : 002299Degradation, phytoprotection and phytoremediation of phenanthrene by endophyte Pseudomonas putida, PD1.
Auteurs : Zareen Khan [États-Unis] ; David Roman ; Trent Kintz ; May Delas Alas ; Raymond Yap ; Sharon DotySource :
- Environmental science & technology [ 1520-5851 ] ; 2014.
Descripteurs français
- KwdFr :
- Dépollution biologique de l'environnement (MeSH), Endophytes (métabolisme), Hydrocarbures aromatiques polycycliques (métabolisme), Phénanthrènes (métabolisme), Poaceae (MeSH), Populus (microbiologie), Pseudomonas putida (métabolisme), Racines de plante (métabolisme), Salinité (MeSH), Salix (microbiologie), Sol (MeSH), Stress physiologique (MeSH).
- MESH :
- microbiologie : Populus, Salix.
- métabolisme : Endophytes, Hydrocarbures aromatiques polycycliques, Phénanthrènes, Pseudomonas putida, Racines de plante.
- Dépollution biologique de l'environnement, Poaceae, Salinité, Sol, Stress physiologique.
English descriptors
- KwdEn :
- Biodegradation, Environmental (MeSH), Endophytes (metabolism), Phenanthrenes (metabolism), Plant Roots (metabolism), Poaceae (MeSH), Polycyclic Aromatic Hydrocarbons (metabolism), Populus (microbiology), Pseudomonas putida (metabolism), Salinity (MeSH), Salix (microbiology), Soil (MeSH), Stress, Physiological (MeSH).
- MESH :
- chemical , metabolism : Phenanthrenes, Polycyclic Aromatic Hydrocarbons.
- metabolism : Endophytes, Plant Roots, Pseudomonas putida.
- microbiology : Populus, Salix.
- Biodegradation, Environmental, Poaceae, Salinity, Soil, Stress, Physiological.
Abstract
Endophytes have been isolated from a large diversity of plants and have been shown to enhance the remediation efficiency of plants, but little information is available on the influence of endophytic bacteria on phytoremediation of widespread environmental contaminants such as polycyclic aromatic hydrocarbons (PAHs). In this study we selected a naturally occurring endophyte for its combined ability to colonize plant roots and degrade phenanthrene in vitro. Inoculation of two different willow clones and a grass with Pseudomonas putida PD1 was found to promote root and shoot growth and protect the plants against the phytotoxic effects of phenanthrene. There was an additional 25-40% removal of phenanthrene from soil by the willow and grasses, respectively inoculated with PD1 when compared to the uninoculated controls. Fluorescent microscopy using fluorescent protein tagging of PD1 confirmed the presence of bacteria inside the root tissue. Inoculation of willows with PD1 consistently improved the growth and health when grown in hydroponic systems with high concentrations of phenanthrene. To our knowledge this is the first time that the inoculation of willow plants has been shown to improve the degradation of PAHs and improve the health of the host plants, demonstrating the potential wide benefit to the field of natural endophyte-assisted phytoremediation.
DOI: 10.1021/es503880t
PubMed: 25275224
Affiliations:
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type="abstract" xml:lang="en">Endophytes have been isolated from a large diversity of plants and have been shown to enhance the remediation efficiency of plants, but little information is available on the influence of endophytic bacteria on phytoremediation of widespread environmental contaminants such as polycyclic aromatic hydrocarbons (PAHs). In this study we selected a naturally occurring endophyte for its combined ability to colonize plant roots and degrade phenanthrene in vitro. Inoculation of two different willow clones and a grass with Pseudomonas putida PD1 was found to promote root and shoot growth and protect the plants against the phytotoxic effects of phenanthrene. There was an additional 25-40% removal of phenanthrene from soil by the willow and grasses, respectively inoculated with PD1 when compared to the uninoculated controls. Fluorescent microscopy using fluorescent protein tagging of PD1 confirmed the presence of bacteria inside the root tissue. Inoculation of willows with PD1 consistently improved the growth and health when grown in hydroponic systems with high concentrations of phenanthrene. To our knowledge this is the first time that the inoculation of willow plants has been shown to improve the degradation of PAHs and improve the health of the host plants, demonstrating the potential wide benefit to the field of natural endophyte-assisted phytoremediation. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">25275224</PMID><DateCompleted><Year>2015</Year><Month>12</Month><Day>29</Day></DateCompleted><DateRevised><Year>2018</Year><Month>12</Month><Day>02</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1520-5851</ISSN><JournalIssue CitedMedium="Internet"><Volume>48</Volume><Issue>20</Issue><PubDate><Year>2014</Year><Month>Oct</Month><Day>21</Day></PubDate></JournalIssue><Title>Environmental science & technology</Title><ISOAbbreviation>Environ Sci Technol</ISOAbbreviation></Journal><ArticleTitle>Degradation, phytoprotection and phytoremediation of phenanthrene by endophyte Pseudomonas putida, PD1.</ArticleTitle><Pagination><MedlinePgn>12221-8</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1021/es503880t</ELocationID><Abstract><AbstractText>Endophytes have been isolated from a large diversity of plants and have been shown to enhance the remediation efficiency of plants, but little information is available on the influence of endophytic bacteria on phytoremediation of widespread environmental contaminants such as polycyclic aromatic hydrocarbons (PAHs). In this study we selected a naturally occurring endophyte for its combined ability to colonize plant roots and degrade phenanthrene in vitro. Inoculation of two different willow clones and a grass with Pseudomonas putida PD1 was found to promote root and shoot growth and protect the plants against the phytotoxic effects of phenanthrene. There was an additional 25-40% removal of phenanthrene from soil by the willow and grasses, respectively inoculated with PD1 when compared to the uninoculated controls. Fluorescent microscopy using fluorescent protein tagging of PD1 confirmed the presence of bacteria inside the root tissue. Inoculation of willows with PD1 consistently improved the growth and health when grown in hydroponic systems with high concentrations of phenanthrene. To our knowledge this is the first time that the inoculation of willow plants has been shown to improve the degradation of PAHs and improve the health of the host plants, demonstrating the potential wide benefit to the field of natural endophyte-assisted phytoremediation. </AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Khan</LastName><ForeName>Zareen</ForeName><Initials>Z</Initials><AffiliationInfo><Affiliation>School of Environmental and Forest Sciences, College of the Environment, University of Washington , Seattle 98195-2100, United States.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Roman</LastName><ForeName>David</ForeName><Initials>D</Initials></Author><Author ValidYN="Y"><LastName>Kintz</LastName><ForeName>Trent</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>delas Alas</LastName><ForeName>May</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Yap</LastName><ForeName>Raymond</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Doty</LastName><ForeName>Sharon</ForeName><Initials>S</Initials></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><GrantID>2R44ES020099-02</GrantID><Acronym>ES</Acronym><Agency>NIEHS NIH HHS</Agency><Country>United States</Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D052061">Research Support, N.I.H., Extramural</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2014</Year><Month>10</Month><Day>13</Day></ArticleDate></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 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MajorTopicYN="N">Salinity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032108" MajorTopicYN="N">Salix</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013312" MajorTopicYN="N">Stress, Physiological</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2014</Year><Month>10</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2014</Year><Month>10</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2015</Year><Month>12</Month><Day>30</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">25275224</ArticleId><ArticleId IdType="doi">10.1021/es503880t</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country></list><tree><noCountry><name sortKey="Delas Alas, May" sort="Delas Alas, May" uniqKey="Delas Alas M" first="May" last="Delas Alas">May Delas Alas</name><name sortKey="Doty, Sharon" sort="Doty, Sharon" uniqKey="Doty S" first="Sharon" last="Doty">Sharon Doty</name><name sortKey="Kintz, Trent" sort="Kintz, Trent" uniqKey="Kintz T" first="Trent" last="Kintz">Trent Kintz</name><name sortKey="Roman, David" sort="Roman, David" uniqKey="Roman D" first="David" last="Roman">David Roman</name><name sortKey="Yap, Raymond" sort="Yap, Raymond" uniqKey="Yap R" first="Raymond" last="Yap">Raymond Yap</name></noCountry><country name="États-Unis"><noRegion><name sortKey="Khan, Zareen" sort="Khan, Zareen" uniqKey="Khan Z" first="Zareen" last="Khan">Zareen Khan</name></noRegion></country></tree></affiliations></record>Pour 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