Role of mycorrhizal fungi and phosphorus in the arsenic tolerance of basin wildrye.
Identifieur interne : 003833 ( Main/Exploration ); précédent : 003832; suivant : 003834Role of mycorrhizal fungi and phosphorus in the arsenic tolerance of basin wildrye.
Auteurs : J A Knudson [États-Unis] ; T. Meikle ; T H DelucaSource :
- Journal of environmental quality [ 0047-2425 ]
Descripteurs français
- KwdFr :
- Arsenic (analyse), Arsenic (métabolisme), Dépollution biologique de l'environnement (MeSH), Humains (MeSH), Lolium (croissance et développement), Lolium (microbiologie), Lolium (métabolisme), Microbiologie du sol (MeSH), Mycorhizes (croissance et développement), Phosphore (analyse), Phosphore (métabolisme), Polluants du sol (analyse), Polluants du sol (métabolisme), Pousses de plante (croissance et développement), Pousses de plante (microbiologie), Pousses de plante (métabolisme), Racines de plante (croissance et développement), Racines de plante (microbiologie), Racines de plante (métabolisme), Symbiose (MeSH).
- MESH :
- analyse : Arsenic, Phosphore, Polluants du sol.
- croissance et développement : Lolium, Mycorhizes, Pousses de plante, Racines de plante.
- microbiologie : Lolium, Pousses de plante, Racines de plante.
- métabolisme : Arsenic, Lolium, Phosphore, Polluants du sol, Pousses de plante, Racines de plante.
- Dépollution biologique de l'environnement, Humains, Microbiologie du sol, Symbiose.
English descriptors
- KwdEn :
- Arsenic (analysis), Arsenic (metabolism), Biodegradation, Environmental (MeSH), Humans (MeSH), Lolium (growth & development), Lolium (metabolism), Lolium (microbiology), Mycorrhizae (growth & development), Phosphorus (analysis), Phosphorus (metabolism), Plant Roots (growth & development), Plant Roots (metabolism), Plant Roots (microbiology), Plant Shoots (growth & development), Plant Shoots (metabolism), Plant Shoots (microbiology), Soil Microbiology (MeSH), Soil Pollutants (analysis), Soil Pollutants (metabolism), Symbiosis (MeSH).
- MESH :
- chemical , analysis : Arsenic, Phosphorus, Soil Pollutants.
- chemical , metabolism : Arsenic, Phosphorus, Soil Pollutants.
- growth & development : Lolium, Mycorrhizae, Plant Roots, Plant Shoots.
- metabolism : Lolium, Plant Roots, Plant Shoots.
- microbiology : Lolium, Plant Roots, Plant Shoots.
- Biodegradation, Environmental, Humans, Soil Microbiology, Symbiosis.
Abstract
Revegetation of arsenic (As)-rich mine spoils is often impeded by the lack of plant species tolerant of high As concentrations and low nutrient availability. Basin wildrye [Leymus cinereus (Scribner & Merr.) A. Löve] has been observed to establish naturally in soils with elevated As content and thus may be useful for the stabilization of As-contaminated soils. An experiment was conducted to evaluate how variable phosphorus (P) concentrations and inoculation with site-specific arbuscular mycorrhizal fungi influence As tolerance of basin wildrye. Basin wildrye was grown in sterile sand in the greenhouse for 16 weeks. Pots of sterile sand were amended to create one of four rates of As (0, 3, 15, or 50 mg As kg(-1)), two rates of P (3 or 15 mg P kg(-1)), and +/-mycorrhizal inoculation in a 2 x 4 x 2 factorial arrangement. After 16 weeks of growth, plants were harvested, shoots and roots thoroughly washed, and the tissue analyzed for total shoot biomass, total root and shoot As and P concentrations, and degree of mycorrhizal infection. Basin wildrye was found to be tolerant of high As concentrations allowing for vigorous plant growth at application levels of 3 or 15 mg As kg(-1). Arsenic was sequestered in the roots, with 30 to 50 times more As in the roots than shoots under low P conditions. Mycorrhizal infection did not confer As tolerance in basin wildrye nor did mycorrhizal fungi influence biomass production. Phosphorus concentrations of 15 mg kg(-1) effectively inhibited As accumulation in basin wildrye. Basin wildrye has the potential to be used for stabilization of As-rich soils while minimizing exposure to grazing animals following reclamation.
DOI: 10.2134/jeq2003.2001
PubMed: 14674521
Affiliations:
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Meikle</name></author><author><name sortKey="Deluca, T H" sort="Deluca, T H" uniqKey="Deluca T" first="T H" last="Deluca">T H Deluca</name></author></analytic><series><title level="j">Journal of environmental quality</title><idno type="ISSN">0047-2425</idno></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Arsenic (analysis)</term><term>Arsenic (metabolism)</term><term>Biodegradation, Environmental (MeSH)</term><term>Humans (MeSH)</term><term>Lolium (growth & development)</term><term>Lolium (metabolism)</term><term>Lolium (microbiology)</term><term>Mycorrhizae (growth & development)</term><term>Phosphorus (analysis)</term><term>Phosphorus (metabolism)</term><term>Plant Roots (growth & development)</term><term>Plant Roots (metabolism)</term><term>Plant Roots (microbiology)</term><term>Plant Shoots (growth & development)</term><term>Plant Shoots (metabolism)</term><term>Plant Shoots (microbiology)</term><term>Soil Microbiology (MeSH)</term><term>Soil Pollutants (analysis)</term><term>Soil Pollutants (metabolism)</term><term>Symbiosis (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Arsenic (analyse)</term><term>Arsenic (métabolisme)</term><term>Dépollution biologique de l'environnement (MeSH)</term><term>Humains (MeSH)</term><term>Lolium (croissance et développement)</term><term>Lolium (microbiologie)</term><term>Lolium (métabolisme)</term><term>Microbiologie du sol (MeSH)</term><term>Mycorhizes (croissance et développement)</term><term>Phosphore (analyse)</term><term>Phosphore (métabolisme)</term><term>Polluants du sol (analyse)</term><term>Polluants du sol (métabolisme)</term><term>Pousses de plante (croissance et développement)</term><term>Pousses de plante (microbiologie)</term><term>Pousses de plante (métabolisme)</term><term>Racines de plante (croissance et développement)</term><term>Racines de plante (microbiologie)</term><term>Racines de plante (métabolisme)</term><term>Symbiose (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Arsenic</term><term>Phosphorus</term><term>Soil Pollutants</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Arsenic</term><term>Phosphorus</term><term>Soil Pollutants</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Arsenic</term><term>Phosphore</term><term>Polluants du sol</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Lolium</term><term>Mycorhizes</term><term>Pousses de plante</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Lolium</term><term>Mycorrhizae</term><term>Plant Roots</term><term>Plant Shoots</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Lolium</term><term>Plant Roots</term><term>Plant Shoots</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Lolium</term><term>Pousses de plante</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Lolium</term><term>Plant Roots</term><term>Plant Shoots</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Arsenic</term><term>Lolium</term><term>Phosphore</term><term>Polluants du sol</term><term>Pousses de plante</term><term>Racines de plante</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biodegradation, Environmental</term><term>Humans</term><term>Soil Microbiology</term><term>Symbiosis</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Dépollution biologique de l'environnement</term><term>Humains</term><term>Microbiologie du sol</term><term>Symbiose</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Revegetation of arsenic (As)-rich mine spoils is often impeded by the lack of plant species tolerant of high As concentrations and low nutrient availability. Basin wildrye [Leymus cinereus (Scribner & Merr.) A. Löve] has been observed to establish naturally in soils with elevated As content and thus may be useful for the stabilization of As-contaminated soils. An experiment was conducted to evaluate how variable phosphorus (P) concentrations and inoculation with site-specific arbuscular mycorrhizal fungi influence As tolerance of basin wildrye. Basin wildrye was grown in sterile sand in the greenhouse for 16 weeks. Pots of sterile sand were amended to create one of four rates of As (0, 3, 15, or 50 mg As kg(-1)), two rates of P (3 or 15 mg P kg(-1)), and +/-mycorrhizal inoculation in a 2 x 4 x 2 factorial arrangement. After 16 weeks of growth, plants were harvested, shoots and roots thoroughly washed, and the tissue analyzed for total shoot biomass, total root and shoot As and P concentrations, and degree of mycorrhizal infection. Basin wildrye was found to be tolerant of high As concentrations allowing for vigorous plant growth at application levels of 3 or 15 mg As kg(-1). Arsenic was sequestered in the roots, with 30 to 50 times more As in the roots than shoots under low P conditions. Mycorrhizal infection did not confer As tolerance in basin wildrye nor did mycorrhizal fungi influence biomass production. Phosphorus concentrations of 15 mg kg(-1) effectively inhibited As accumulation in basin wildrye. Basin wildrye has the potential to be used for stabilization of As-rich soils while minimizing exposure to grazing animals following reclamation.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">14674521</PMID><DateCompleted><Year>2004</Year><Month>01</Month><Day>29</Day></DateCompleted><DateRevised><Year>2019</Year><Month>09</Month><Day>22</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0047-2425</ISSN><JournalIssue CitedMedium="Print"><Volume>32</Volume><Issue>6</Issue><PubDate><MedlineDate>2003 Nov-Dec</MedlineDate></PubDate></JournalIssue><Title>Journal of environmental quality</Title><ISOAbbreviation>J Environ Qual</ISOAbbreviation></Journal><ArticleTitle>Role of mycorrhizal fungi and phosphorus in the arsenic tolerance of basin wildrye.</ArticleTitle><Pagination><MedlinePgn>2001-6</MedlinePgn></Pagination><Abstract><AbstractText>Revegetation of arsenic (As)-rich mine spoils is often impeded by the lack of plant species tolerant of high As concentrations and low nutrient availability. Basin wildrye [Leymus cinereus (Scribner & Merr.) A. Löve] has been observed to establish naturally in soils with elevated As content and thus may be useful for the stabilization of As-contaminated soils. An experiment was conducted to evaluate how variable phosphorus (P) concentrations and inoculation with site-specific arbuscular mycorrhizal fungi influence As tolerance of basin wildrye. Basin wildrye was grown in sterile sand in the greenhouse for 16 weeks. Pots of sterile sand were amended to create one of four rates of As (0, 3, 15, or 50 mg As kg(-1)), two rates of P (3 or 15 mg P kg(-1)), and +/-mycorrhizal inoculation in a 2 x 4 x 2 factorial arrangement. After 16 weeks of growth, plants were harvested, shoots and roots thoroughly washed, and the tissue analyzed for total shoot biomass, total root and shoot As and P concentrations, and degree of mycorrhizal infection. Basin wildrye was found to be tolerant of high As concentrations allowing for vigorous plant growth at application levels of 3 or 15 mg As kg(-1). Arsenic was sequestered in the roots, with 30 to 50 times more As in the roots than shoots under low P conditions. Mycorrhizal infection did not confer As tolerance in basin wildrye nor did mycorrhizal fungi influence biomass production. Phosphorus concentrations of 15 mg kg(-1) effectively inhibited As accumulation in basin wildrye. Basin wildrye has the potential to be used for stabilization of As-rich soils while minimizing exposure to grazing animals following reclamation.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Knudson</LastName><ForeName>J A</ForeName><Initials>JA</Initials><AffiliationInfo><Affiliation>Department of Ecosystem and Conservation Sciences, College of Forestry and Conservation, The University of Montana, Missoula, MT 59812, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Meikle</LastName><ForeName>T</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>DeLuca</LastName><ForeName>T H</ForeName><Initials>TH</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>J Environ Qual</MedlineTA><NlmUniqueID>0330666</NlmUniqueID><ISSNLinking>0047-2425</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012989">Soil Pollutants</NameOfSubstance></Chemical><Chemical><RegistryNumber>27YLU75U4W</RegistryNumber><NameOfSubstance UI="D010758">Phosphorus</NameOfSubstance></Chemical><Chemical><RegistryNumber>N712M78A8G</RegistryNumber><NameOfSubstance UI="D001151">Arsenic</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001151" MajorTopicYN="N">Arsenic</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001673" MajorTopicYN="N">Biodegradation, Environmental</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008129" MajorTopicYN="N">Lolium</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010758" MajorTopicYN="N">Phosphorus</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018520" MajorTopicYN="N">Plant Shoots</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="N">Soil Microbiology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012989" MajorTopicYN="N">Soil Pollutants</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013559" MajorTopicYN="N">Symbiosis</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2003</Year><Month>12</Month><Day>17</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2004</Year><Month>1</Month><Day>30</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2003</Year><Month>12</Month><Day>17</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">14674521</ArticleId><ArticleId IdType="doi">10.2134/jeq2003.2001</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Montana</li></region></list><tree><noCountry><name sortKey="Deluca, T H" sort="Deluca, T H" uniqKey="Deluca T" first="T H" last="Deluca">T H Deluca</name><name sortKey="Meikle, T" sort="Meikle, T" uniqKey="Meikle T" first="T" last="Meikle">T. Meikle</name></noCountry><country name="États-Unis"><region name="Montana"><name sortKey="Knudson, J A" sort="Knudson, J A" uniqKey="Knudson J" first="J A" last="Knudson">J A Knudson</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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