Rhizobacteria of Populus euphratica Promoting Plant Growth Against Heavy Metals.
Identifieur interne : 001B54 ( Main/Exploration ); précédent : 001B53; suivant : 001B55Rhizobacteria of Populus euphratica Promoting Plant Growth Against Heavy Metals.
Auteurs : Donglin Zhu [République populaire de Chine] ; Liming Ouyang ; Zhaohui Xu ; Lili ZhangSource :
- International journal of phytoremediation [ 1549-7879 ] ; 2015.
Descripteurs français
- KwdFr :
- ADN bactérien (génétique), ARN ribosomique 16S (génétique), Analyse de séquence d'ADN (MeSH), Bactéries (classification), Bactéries (génétique), Données de séquences moléculaires (MeSH), Dépollution biologique de l'environnement (MeSH), Microbiologie du sol (MeSH), Métaux lourds (métabolisme), Phénomènes physiologiques bactériens (MeSH), Polluants du sol (métabolisme), Populus (croissance et développement), Populus (microbiologie), Populus (physiologie), Racines de plante (croissance et développement), Racines de plante (microbiologie), Racines de plante (physiologie), Rhizosphère (MeSH).
- MESH :
- croissance et développement : Populus, Racines de plante.
- génétique : ADN bactérien, ARN ribosomique 16S, Bactéries.
- microbiologie : Populus, Racines de plante.
- métabolisme : Métaux lourds, Polluants du sol.
- physiologie : Populus, Racines de plante.
- Analyse de séquence d'ADN, Données de séquences moléculaires, Dépollution biologique de l'environnement, Microbiologie du sol, Phénomènes physiologiques bactériens, Rhizosphère.
English descriptors
- KwdEn :
- Bacteria (classification), Bacteria (genetics), Bacterial Physiological Phenomena (MeSH), Biodegradation, Environmental (MeSH), DNA, Bacterial (genetics), Metals, Heavy (metabolism), Molecular Sequence Data (MeSH), Plant Roots (growth & development), Plant Roots (microbiology), Plant Roots (physiology), Populus (growth & development), Populus (microbiology), Populus (physiology), RNA, Ribosomal, 16S (genetics), Rhizosphere (MeSH), Sequence Analysis, DNA (MeSH), Soil Microbiology (MeSH), Soil Pollutants (metabolism).
- MESH :
- chemical , genetics : DNA, Bacterial, RNA, Ribosomal, 16S.
- classification : Bacteria.
- genetics : Bacteria.
- growth & development : Plant Roots, Populus.
- chemical , metabolism : Metals, Heavy, Soil Pollutants.
- microbiology : Plant Roots, Populus.
- physiology : Plant Roots, Populus.
- Bacterial Physiological Phenomena, Biodegradation, Environmental, Molecular Sequence Data, Rhizosphere, Sequence Analysis, DNA, Soil Microbiology.
Abstract
The heavy metal-resistant bacteria from rhizospheric soils of wild Populus euphratica forest growing in arid and saline area of northwestern China were investigated by cultivation-dependent methods. After screening on medium sparked with zinc, copper, nickel and lead, 146 bacteria strains with different morphology were isolated and most of them were found to be resistant to at least two kinds of heavy metals. Significant increase in fresh weight and leaf surface area of Arabidopsis thaliana seedlings under metal stress were noticed after inoculated with strains especially those having multiple-resistance to heavy metals such as Phyllobacterium sp. strain C65. Investigation on relationship between auxin production and exogenous zinc concentration revealed that Phyllobacterium sp. strain C65 produced auxin, and production decreased as the concentration of zinc in medium increased. For wheat seedlings treated with zinc of 2 mM, zinc contents in roots of inoculated plants decreased by 27% (P < 0.05) compared to the uninoculated control. Meanwhile, zinc accumulation in the above-ground tissues increased by 22% (P < 0.05). The translocation of zinc from root to above-ground tissues induced by Phyllobacterium sp. strain C65 helped host plants extract zinc from contaminated environments more efficiently thus alleviated the growth inhibition caused by heavy metals.
DOI: 10.1080/15226514.2014.981242
PubMed: 26208544
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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arid and saline area of northwestern China were investigated by cultivation-dependent methods. After screening on medium sparked with zinc, copper, nickel and lead, 146 bacteria strains with different morphology were isolated and most of them were found to be resistant to at least two kinds of heavy metals. Significant increase in fresh weight and leaf surface area of Arabidopsis thaliana seedlings under metal stress were noticed after inoculated with strains especially those having multiple-resistance to heavy metals such as Phyllobacterium sp. strain C65. Investigation on relationship between auxin production and exogenous zinc concentration revealed that Phyllobacterium sp. strain C65 produced auxin, and production decreased as the concentration of zinc in medium increased. For wheat seedlings treated with zinc of 2 mM, zinc contents in roots of inoculated plants decreased by 27% (P < 0.05) compared to the uninoculated control. Meanwhile, zinc accumulation in the above-ground tissues increased by 22% (P < 0.05). The translocation of zinc from root to above-ground tissues induced by Phyllobacterium sp. strain C65 helped host plants extract zinc from contaminated environments more efficiently thus alleviated the growth inhibition caused by heavy metals.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">26208544</PMID><DateCompleted><Year>2016</Year><Month>08</Month><Day>16</Day></DateCompleted><DateRevised><Year>2015</Year><Month>07</Month><Day>25</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1549-7879</ISSN><JournalIssue CitedMedium="Internet"><Volume>17</Volume><Issue>10</Issue><PubDate><Year>2015</Year></PubDate></JournalIssue><Title>International journal of phytoremediation</Title><ISOAbbreviation>Int J Phytoremediation</ISOAbbreviation></Journal><ArticleTitle>Rhizobacteria of Populus euphratica Promoting Plant Growth Against Heavy Metals.</ArticleTitle><Pagination><MedlinePgn>973-80</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1080/15226514.2014.981242</ELocationID><Abstract><AbstractText>The heavy metal-resistant bacteria from rhizospheric soils of wild Populus euphratica forest growing in arid and saline area of northwestern China were investigated by cultivation-dependent methods. After screening on medium sparked with zinc, copper, nickel and lead, 146 bacteria strains with different morphology were isolated and most of them were found to be resistant to at least two kinds of heavy metals. Significant increase in fresh weight and leaf surface area of Arabidopsis thaliana seedlings under metal stress were noticed after inoculated with strains especially those having multiple-resistance to heavy metals such as Phyllobacterium sp. strain C65. Investigation on relationship between auxin production and exogenous zinc concentration revealed that Phyllobacterium sp. strain C65 produced auxin, and production decreased as the concentration of zinc in medium increased. For wheat seedlings treated with zinc of 2 mM, zinc contents in roots of inoculated plants decreased by 27% (P < 0.05) compared to the uninoculated control. Meanwhile, zinc accumulation in the above-ground tissues increased by 22% (P < 0.05). The translocation of zinc from root to above-ground tissues induced by Phyllobacterium sp. strain C65 helped host plants extract zinc from contaminated environments more efficiently thus alleviated the growth inhibition caused by heavy metals.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Zhu</LastName><ForeName>Donglin</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>a State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology , Shanghai , China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ouyang</LastName><ForeName>Liming</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Xu</LastName><ForeName>Zhaohui</ForeName><Initials>Z</Initials></Author><Author ValidYN="Y"><LastName>Zhang</LastName><ForeName>Lili</ForeName><Initials>L</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Int J Phytoremediation</MedlineTA><NlmUniqueID>101136878</NlmUniqueID><ISSNLinking>1522-6514</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D004269">DNA, Bacterial</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D019216">Metals, Heavy</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012336">RNA, Ribosomal, 16S</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012989">Soil Pollutants</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001419" MajorTopicYN="N">Bacteria</DescriptorName><QualifierName UI="Q000145" 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PubStatus="medline"><Year>2016</Year><Month>8</Month><Day>17</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">26208544</ArticleId><ArticleId IdType="doi">10.1080/15226514.2014.981242</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>République populaire de Chine</li></country></list><tree><noCountry><name sortKey="Ouyang, Liming" sort="Ouyang, Liming" uniqKey="Ouyang L" first="Liming" last="Ouyang">Liming Ouyang</name><name sortKey="Xu, Zhaohui" sort="Xu, Zhaohui" uniqKey="Xu Z" first="Zhaohui" last="Xu">Zhaohui Xu</name><name sortKey="Zhang, Lili" sort="Zhang, Lili" uniqKey="Zhang L" first="Lili" last="Zhang">Lili Zhang</name></noCountry><country name="République populaire de Chine"><noRegion><name sortKey="Zhu, Donglin" sort="Zhu, Donglin" uniqKey="Zhu D" first="Donglin" last="Zhu">Donglin 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