Moderating mycorrhizas: arbuscular mycorrhizas modify rhizosphere chemistry and maintain plant phosphorus status within narrow boundaries.
Identifieur interne : 001A88 ( Main/Corpus ); précédent : 001A87; suivant : 001A89Moderating mycorrhizas: arbuscular mycorrhizas modify rhizosphere chemistry and maintain plant phosphorus status within narrow boundaries.
Auteurs : Nazanin K. Nazeri ; Hans Lambers ; Mark Tibbett ; Megan H. RyanSource :
- Plant, cell & environment [ 1365-3040 ] ; 2014.
English descriptors
- KwdEn :
- Analysis of Variance (MeSH), Carboxylic Acids (metabolism), Colony Count, Microbial (MeSH), Hydrogen-Ion Concentration (MeSH), Linear Models (MeSH), Manganese (metabolism), Mycorrhizae (growth & development), Mycorrhizae (physiology), Nitrogen (metabolism), Phosphorus (metabolism), Plant Leaves (anatomy & histology), Plant Shoots (metabolism), Plants (metabolism), Plants (microbiology), Rhizosphere (MeSH), Seedlings (anatomy & histology), Species Specificity (MeSH).
- MESH :
- chemical , metabolism : Carboxylic Acids, Manganese, Nitrogen, Phosphorus.
- anatomy & histology : Plant Leaves, Seedlings.
- growth & development : Mycorrhizae.
- metabolism : Plant Shoots, Plants.
- microbiology : Plants.
- physiology : Mycorrhizae.
- Analysis of Variance, Colony Count, Microbial, Hydrogen-Ion Concentration, Linear Models, Rhizosphere, Species Specificity.
Abstract
Pastures often experience a pulse of phosphorus (P) when fertilized. We examined the role of arbuscular mycorrhizal fungi (AMF) in the uptake of P from a pulse. Five legumes (Kennedia prostrata, Cullen australasicum, Bituminaria bituminosa, Medicago sativa and Trifolium subterraneum) were grown in a moderate P, sterilized field soil, either with (+AMF) or without (-AMF) addition of unsterilized field soil. After 9-10 weeks, half the pots received 15 mg P kg(-1) of soil. One week later, we measured: shoot and root dry weights; percentage of root length colonized by AMF; plant P, nitrogen and manganese (Mn) concentrations; and rhizosphere carboxylates, pH and plant-available P. The P pulse raised root P concentration by a similar amount in uncolonized and colonized plants, but shoot P concentration increased by 143% in uncolonized plants and 53% in colonized plants. Inoculation with AMF decreased the amount of rhizosphere carboxylates by 52%, raised rhizosphere pH by ∼0.2-0.7 pH units and lowered shoot Mn concentration by 38%. We conclude that AMF are not simply a means for plants to enhance P uptake when P is limiting, but also act to maintain shoot P within narrow boundaries and can affect nutrient uptake through their influence on rhizosphere chemistry.
DOI: 10.1111/pce.12207
PubMed: 24112081
Links to Exploration step
pubmed:24112081Le document en format XML
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Nazeri</name><affiliation><nlm:affiliation>School of Plant Biology and Institute of Agriculture, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia, 6009, Australia; Future Farm Industries Cooperative Research Centre, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia, 6009, Australia.</nlm:affiliation></affiliation></author><author><name sortKey="Lambers, Hans" sort="Lambers, Hans" uniqKey="Lambers H" first="Hans" last="Lambers">Hans Lambers</name></author><author><name sortKey="Tibbett, Mark" sort="Tibbett, Mark" uniqKey="Tibbett M" first="Mark" last="Tibbett">Mark Tibbett</name></author><author><name sortKey="Ryan, Megan H" sort="Ryan, Megan H" uniqKey="Ryan M" first="Megan H" last="Ryan">Megan H. 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Nazeri</name><affiliation><nlm:affiliation>School of Plant Biology and Institute of Agriculture, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia, 6009, Australia; Future Farm Industries Cooperative Research Centre, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia, 6009, Australia.</nlm:affiliation></affiliation></author><author><name sortKey="Lambers, Hans" sort="Lambers, Hans" uniqKey="Lambers H" first="Hans" last="Lambers">Hans Lambers</name></author><author><name sortKey="Tibbett, Mark" sort="Tibbett, Mark" uniqKey="Tibbett M" first="Mark" last="Tibbett">Mark Tibbett</name></author><author><name sortKey="Ryan, Megan H" sort="Ryan, Megan H" uniqKey="Ryan M" first="Megan H" last="Ryan">Megan H. 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We examined the role of arbuscular mycorrhizal fungi (AMF) in the uptake of P from a pulse. Five legumes (Kennedia prostrata, Cullen australasicum, Bituminaria bituminosa, Medicago sativa and Trifolium subterraneum) were grown in a moderate P, sterilized field soil, either with (+AMF) or without (-AMF) addition of unsterilized field soil. After 9-10 weeks, half the pots received 15 mg P kg(-1) of soil. One week later, we measured: shoot and root dry weights; percentage of root length colonized by AMF; plant P, nitrogen and manganese (Mn) concentrations; and rhizosphere carboxylates, pH and plant-available P. The P pulse raised root P concentration by a similar amount in uncolonized and colonized plants, but shoot P concentration increased by 143% in uncolonized plants and 53% in colonized plants. Inoculation with AMF decreased the amount of rhizosphere carboxylates by 52%, raised rhizosphere pH by ∼0.2-0.7 pH units and lowered shoot Mn concentration by 38%. We conclude that AMF are not simply a means for plants to enhance P uptake when P is limiting, but also act to maintain shoot P within narrow boundaries and can affect nutrient uptake through their influence on rhizosphere chemistry.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">24112081</PMID><DateCompleted><Year>2014</Year><Month>10</Month><Day>22</Day></DateCompleted><DateRevised><Year>2015</Year><Month>11</Month><Day>19</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-3040</ISSN><JournalIssue CitedMedium="Internet"><Volume>37</Volume><Issue>4</Issue><PubDate><Year>2014</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Plant, cell & environment</Title><ISOAbbreviation>Plant Cell Environ</ISOAbbreviation></Journal><ArticleTitle>Moderating mycorrhizas: arbuscular mycorrhizas modify rhizosphere chemistry and maintain plant phosphorus status within narrow boundaries.</ArticleTitle><Pagination><MedlinePgn>911-21</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/pce.12207</ELocationID><Abstract><AbstractText>Pastures often experience a pulse of phosphorus (P) when fertilized. We examined the role of arbuscular mycorrhizal fungi (AMF) in the uptake of P from a pulse. Five legumes (Kennedia prostrata, Cullen australasicum, Bituminaria bituminosa, Medicago sativa and Trifolium subterraneum) were grown in a moderate P, sterilized field soil, either with (+AMF) or without (-AMF) addition of unsterilized field soil. After 9-10 weeks, half the pots received 15 mg P kg(-1) of soil. One week later, we measured: shoot and root dry weights; percentage of root length colonized by AMF; plant P, nitrogen and manganese (Mn) concentrations; and rhizosphere carboxylates, pH and plant-available P. The P pulse raised root P concentration by a similar amount in uncolonized and colonized plants, but shoot P concentration increased by 143% in uncolonized plants and 53% in colonized plants. Inoculation with AMF decreased the amount of rhizosphere carboxylates by 52%, raised rhizosphere pH by ∼0.2-0.7 pH units and lowered shoot Mn concentration by 38%. We conclude that AMF are not simply a means for plants to enhance P uptake when P is limiting, but also act to maintain shoot P within narrow boundaries and can affect nutrient uptake through their influence on rhizosphere chemistry.</AbstractText><CopyrightInformation>© 2013 John Wiley & Sons Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Nazeri</LastName><ForeName>Nazanin K</ForeName><Initials>NK</Initials><AffiliationInfo><Affiliation>School of Plant Biology and Institute of Agriculture, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia, 6009, Australia; Future Farm Industries Cooperative Research Centre, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia, 6009, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lambers</LastName><ForeName>Hans</ForeName><Initials>H</Initials></Author><Author ValidYN="Y"><LastName>Tibbett</LastName><ForeName>Mark</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Ryan</LastName><ForeName>Megan H</ForeName><Initials>MH</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><ArticleDate DateType="Electronic"><Year>2013</Year><Month>10</Month><Day>25</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Cell Environ</MedlineTA><NlmUniqueID>9309004</NlmUniqueID><ISSNLinking>0140-7791</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D002264">Carboxylic Acids</NameOfSubstance></Chemical><Chemical><RegistryNumber>27YLU75U4W</RegistryNumber><NameOfSubstance 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Models</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008345" MajorTopicYN="N">Manganese</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009584" MajorTopicYN="N">Nitrogen</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010758" MajorTopicYN="N">Phosphorus</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018520" MajorTopicYN="N">Plant Shoots</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010944" MajorTopicYN="N">Plants</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D058441" MajorTopicYN="Y">Rhizosphere</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D036226" MajorTopicYN="N">Seedlings</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013045" MajorTopicYN="N">Species Specificity</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">mycorrhiza-mediated resource partitioning</Keyword><Keyword MajorTopicYN="N">phosphorus 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