Ectomycorrhizal fungi may not act as a barrier inhibiting host plant absorption of heavy metals.
Identifieur interne : 000713 ( Main/Corpus ); précédent : 000712; suivant : 000714Ectomycorrhizal fungi may not act as a barrier inhibiting host plant absorption of heavy metals.
Auteurs : Yangze Tang ; Liang Shi ; Kecheng Zhong ; Zhenguo Shen ; Yahua ChenSource :
- Chemosphere [ 1879-1298 ] ; 2019.
English descriptors
- KwdEn :
- Basidiomycota (physiology), Biological Transport (MeSH), Biomass (MeSH), Drug Tolerance (MeSH), Environmental Restoration and Remediation (MeSH), Metals, Heavy (toxicity), Mycorrhizae (drug effects), Mycorrhizae (metabolism), Pinus (drug effects), Pinus (metabolism), Pinus (microbiology), Seedlings (drug effects), Seedlings (metabolism), Seedlings (microbiology), Soil (chemistry), Soil Pollutants (toxicity).
- MESH :
- chemical , chemistry : Soil.
- chemical , toxicity : Metals, Heavy, Soil Pollutants.
- drug effects : Mycorrhizae, Pinus, Seedlings.
- metabolism : Mycorrhizae, Pinus, Seedlings.
- microbiology : Pinus, Seedlings.
- physiology : Basidiomycota.
- Biological Transport, Biomass, Drug Tolerance, Environmental Restoration and Remediation.
Abstract
Whether the huge external hyphal system of ectomycorrhizae that promotes host plants' acquisition of water and nutrients can selectively inhibit their transport of heavy metals at the same time remains unclear. In this experiment, we designed and conducted two types of soil-pot test to clarify the effects of EMF on the absorption and transport of copper (Cu) and cadmium (Cd) by host Pinus thunbergii seedlings. In the root-bag test, external hyphae took the initiative into the Cu/Cd-contaminated bulk soil, absorb and transport Cu and Cd to the rhizosphere soils and further transport it to the shoots of the host plants. Inoculation with EMF also promoted the uptake of nutrients by host plants, thereby increasing their biomass and improving Cu/Cd tolerance compared with non-inoculated plants. Inoculation with EMF species with higher Cu or Cd tolerance generated more phytostabilization and phytoextraction of Cu or Cd by host plants. In a short-term exposure test, inoculation with EMF accelerated the absorption of Cu and Cd by P. thunbergii within 12 h of Cu or Cd irrigation. Therefore, we concluded that EMF do not act as a barrier inhibiting the absorption of heavy metals by host plants, but rather promote this absorption. Improving the plant's nutritional status and promoting growth, diluting heavy metal concentrations, thereby reducing the toxic effects of heavy metals on host plants. These results provide the theoretical basis for the application of EMF in plant-microbial combinations for the phytostabilization and phytoextraction of heavy metal-contaminated soils.
DOI: 10.1016/j.chemosphere.2018.09.143
PubMed: 30316153
Links to Exploration step
pubmed:30316153Le document en format XML
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Electronic address: yahuachen@njau.edu.cn.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Chemosphere</title><idno type="eISSN">1879-1298</idno><imprint><date when="2019" type="published">2019</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Basidiomycota (physiology)</term><term>Biological Transport (MeSH)</term><term>Biomass (MeSH)</term><term>Drug Tolerance (MeSH)</term><term>Environmental Restoration and Remediation (MeSH)</term><term>Metals, Heavy (toxicity)</term><term>Mycorrhizae (drug effects)</term><term>Mycorrhizae (metabolism)</term><term>Pinus (drug effects)</term><term>Pinus (metabolism)</term><term>Pinus (microbiology)</term><term>Seedlings (drug effects)</term><term>Seedlings (metabolism)</term><term>Seedlings (microbiology)</term><term>Soil (chemistry)</term><term>Soil Pollutants (toxicity)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Soil</term></keywords><keywords scheme="MESH" type="chemical" qualifier="toxicity" xml:lang="en"><term>Metals, Heavy</term><term>Soil Pollutants</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Mycorrhizae</term><term>Pinus</term><term>Seedlings</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Mycorrhizae</term><term>Pinus</term><term>Seedlings</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Pinus</term><term>Seedlings</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Basidiomycota</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biological Transport</term><term>Biomass</term><term>Drug Tolerance</term><term>Environmental Restoration and Remediation</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Whether the huge external hyphal system of ectomycorrhizae that promotes host plants' acquisition of water and nutrients can selectively inhibit their transport of heavy metals at the same time remains unclear. In this experiment, we designed and conducted two types of soil-pot test to clarify the effects of EMF on the absorption and transport of copper (Cu) and cadmium (Cd) by host Pinus thunbergii seedlings. In the root-bag test, external hyphae took the initiative into the Cu/Cd-contaminated bulk soil, absorb and transport Cu and Cd to the rhizosphere soils and further transport it to the shoots of the host plants. Inoculation with EMF also promoted the uptake of nutrients by host plants, thereby increasing their biomass and improving Cu/Cd tolerance compared with non-inoculated plants. Inoculation with EMF species with higher Cu or Cd tolerance generated more phytostabilization and phytoextraction of Cu or Cd by host plants. In a short-term exposure test, inoculation with EMF accelerated the absorption of Cu and Cd by P. thunbergii within 12 h of Cu or Cd irrigation. Therefore, we concluded that EMF do not act as a barrier inhibiting the absorption of heavy metals by host plants, but rather promote this absorption. Improving the plant's nutritional status and promoting growth, diluting heavy metal concentrations, thereby reducing the toxic effects of heavy metals on host plants. These results provide the theoretical basis for the application of EMF in plant-microbial combinations for the phytostabilization and phytoextraction of heavy metal-contaminated soils.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">30316153</PMID><DateCompleted><Year>2018</Year><Month>12</Month><Day>21</Day></DateCompleted><DateRevised><Year>2018</Year><Month>12</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1879-1298</ISSN><JournalIssue CitedMedium="Internet"><Volume>215</Volume><PubDate><Year>2019</Year><Month>Jan</Month></PubDate></JournalIssue><Title>Chemosphere</Title><ISOAbbreviation>Chemosphere</ISOAbbreviation></Journal><ArticleTitle>Ectomycorrhizal fungi may not act as a barrier inhibiting host plant absorption of heavy metals.</ArticleTitle><Pagination><MedlinePgn>115-123</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S0045-6535(18)31805-8</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.chemosphere.2018.09.143</ELocationID><Abstract><AbstractText>Whether the huge external hyphal system of ectomycorrhizae that promotes host plants' acquisition of water and nutrients can selectively inhibit their transport of heavy metals at the same time remains unclear. In this experiment, we designed and conducted two types of soil-pot test to clarify the effects of EMF on the absorption and transport of copper (Cu) and cadmium (Cd) by host Pinus thunbergii seedlings. In the root-bag test, external hyphae took the initiative into the Cu/Cd-contaminated bulk soil, absorb and transport Cu and Cd to the rhizosphere soils and further transport it to the shoots of the host plants. Inoculation with EMF also promoted the uptake of nutrients by host plants, thereby increasing their biomass and improving Cu/Cd tolerance compared with non-inoculated plants. Inoculation with EMF species with higher Cu or Cd tolerance generated more phytostabilization and phytoextraction of Cu or Cd by host plants. In a short-term exposure test, inoculation with EMF accelerated the absorption of Cu and Cd by P. thunbergii within 12 h of Cu or Cd irrigation. Therefore, we concluded that EMF do not act as a barrier inhibiting the absorption of heavy metals by host plants, but rather promote this absorption. Improving the plant's nutritional status and promoting growth, diluting heavy metal concentrations, thereby reducing the toxic effects of heavy metals on host plants. These results provide the theoretical basis for the application of EMF in plant-microbial combinations for the phytostabilization and phytoextraction of heavy metal-contaminated soils.</AbstractText><CopyrightInformation>Copyright © 2018 Elsevier Ltd. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Tang</LastName><ForeName>Yangze</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource, Nanjing Agricultural University, Nanjing 210095, China; National Joint Local Engineering Research Center for Rural Land Resources Use and Consolidation, Nanjing Agricultural University, Nanjing 210095, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Shi</LastName><ForeName>Liang</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource, Nanjing Agricultural University, Nanjing 210095, China; National Joint Local Engineering Research Center for Rural Land Resources Use and Consolidation, Nanjing Agricultural University, Nanjing 210095, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zhong</LastName><ForeName>Kecheng</ForeName><Initials>K</Initials><AffiliationInfo><Affiliation>College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource, Nanjing Agricultural University, Nanjing 210095, China; National Joint Local Engineering Research Center for Rural Land Resources Use and Consolidation, Nanjing Agricultural University, Nanjing 210095, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Shen</LastName><ForeName>Zhenguo</ForeName><Initials>Z</Initials><AffiliationInfo><Affiliation>College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource, Nanjing Agricultural University, Nanjing 210095, China; National Joint Local Engineering Research Center for Rural Land Resources Use and Consolidation, Nanjing Agricultural University, Nanjing 210095, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Chen</LastName><ForeName>Yahua</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource, Nanjing Agricultural University, Nanjing 210095, China; National Joint Local Engineering Research Center for Rural Land Resources Use and Consolidation, Nanjing Agricultural University, Nanjing 210095, China. Electronic address: yahuachen@njau.edu.cn.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2018</Year><Month>10</Month><Day>04</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Chemosphere</MedlineTA><NlmUniqueID>0320657</NlmUniqueID><ISSNLinking>0045-6535</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D019216">Metals, Heavy</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012989">Soil Pollutants</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001487" MajorTopicYN="N">Basidiomycota</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001692" MajorTopicYN="N">Biological Transport</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004361" MajorTopicYN="Y">Drug Tolerance</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D052918" MajorTopicYN="N">Environmental Restoration and Remediation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019216" MajorTopicYN="N">Metals, Heavy</DescriptorName><QualifierName UI="Q000633" MajorTopicYN="Y">toxicity</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D028223" MajorTopicYN="N">Pinus</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D036226" MajorTopicYN="N">Seedlings</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012989" MajorTopicYN="N">Soil Pollutants</DescriptorName><QualifierName UI="Q000633" MajorTopicYN="Y">toxicity</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Barrier</Keyword><Keyword MajorTopicYN="N">Ectomycorrhizal fungi</Keyword><Keyword MajorTopicYN="N">Heavy metals</Keyword><Keyword MajorTopicYN="N">Host plants</Keyword><Keyword MajorTopicYN="N">Phytoremediation</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2018</Year><Month>06</Month><Day>09</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2018</Year><Month>09</Month><Day>07</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2018</Year><Month>09</Month><Day>24</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2018</Year><Month>10</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2018</Year><Month>12</Month><Day>24</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2018</Year><Month>10</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">30316153</ArticleId><ArticleId IdType="pii">S0045-6535(18)31805-8</ArticleId><ArticleId IdType="doi">10.1016/j.chemosphere.2018.09.143</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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