Carbon trading for phosphorus gain: the balance between rhizosphere carboxylates and arbuscular mycorrhizal symbiosis in plant phosphorus acquisition.
Identifieur interne : 001F63 ( Main/Corpus ); précédent : 001F62; suivant : 001F64Carbon trading for phosphorus gain: the balance between rhizosphere carboxylates and arbuscular mycorrhizal symbiosis in plant phosphorus acquisition.
Auteurs : M H Ryan ; M. Tibbett ; T. Edmonds-Tibbett ; L D B. Suriyagoda ; H. Lambers ; G R Cawthray ; J. PangSource :
- Plant, cell & environment [ 1365-3040 ] ; 2012.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Carbon, Carboxylic Acids, Phosphorus.
- metabolism : Phaseolus.
- microbiology : Phaseolus.
- physiology : Mycorrhizae.
- Rhizosphere, Symbiosis.
Abstract
Two key plant adaptations for phosphorus (P) acquisition are carboxylate exudation into the rhizosphere and mycorrhizal symbioses. These target different soil P resources, presumably with different plant carbon costs. We examined the effect of inoculation with arbuscular mycorrhizal fungi (AMF) on amount of rhizosphere carboxylates and plant P uptake for 10 species of low-P adapted Kennedia grown for 23 weeks in low-P sand. Inoculation decreased carboxylates in some species (up to 50%), decreased plant dry weight (21%) and increased plant P content (23%). There was a positive logarithmic relationship between plant P content and the amount of rhizosphere citric acid for inoculated and uninoculated plants. Causality was indicated by experiments using sand where little citric acid was lost from the soil solution over 2 h and citric acid at low concentrations desorbed P into the soil solution. Senesced leaf P concentration was often low and P-resorption efficiencies reached >90%. In conclusion, we propose that mycorrhizally mediated resource partitioning occurred because inoculation reduced rhizosphere carboxylates, but increased plant P uptake. Hence, presumably, the proportion of plant P acquired from strongly sorbed sources decreased with inoculation, while the proportion from labile inorganic P increased. Implications for plant fitness under field conditions now require investigation.
DOI: 10.1111/j.1365-3040.2012.02547.x
PubMed: 22632405
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Suriyagoda</name></author><author><name sortKey="Lambers, H" sort="Lambers, H" uniqKey="Lambers H" first="H" last="Lambers">H. Lambers</name></author><author><name sortKey="Cawthray, G R" sort="Cawthray, G R" uniqKey="Cawthray G" first="G R" last="Cawthray">G R Cawthray</name></author><author><name sortKey="Pang, J" sort="Pang, J" uniqKey="Pang J" first="J" last="Pang">J. Pang</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:22632405</idno><idno type="pmid">22632405</idno><idno type="doi">10.1111/j.1365-3040.2012.02547.x</idno><idno type="wicri:Area/Main/Corpus">001F63</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001F63</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Carbon trading for phosphorus gain: the balance between rhizosphere carboxylates and arbuscular mycorrhizal symbiosis in plant phosphorus acquisition.</title><author><name sortKey="Ryan, M H" sort="Ryan, M H" uniqKey="Ryan M" first="M H" last="Ryan">M H Ryan</name><affiliation><nlm:affiliation>Schools of Plant Biology, Institute of Agriculture, Future Farm Industries Cooperative Research Centre, The University of Western Australia, Crawley, WA 6009. megan.ryan@uwa.edu.au</nlm:affiliation></affiliation></author><author><name sortKey="Tibbett, M" sort="Tibbett, M" uniqKey="Tibbett M" first="M" last="Tibbett">M. Tibbett</name></author><author><name sortKey="Edmonds Tibbett, T" sort="Edmonds Tibbett, T" uniqKey="Edmonds Tibbett T" first="T" last="Edmonds-Tibbett">T. Edmonds-Tibbett</name></author><author><name sortKey="Suriyagoda, L D B" sort="Suriyagoda, L D B" uniqKey="Suriyagoda L" first="L D B" last="Suriyagoda">L D B. Suriyagoda</name></author><author><name sortKey="Lambers, H" sort="Lambers, H" uniqKey="Lambers H" first="H" last="Lambers">H. Lambers</name></author><author><name sortKey="Cawthray, G R" sort="Cawthray, G R" uniqKey="Cawthray G" first="G R" last="Cawthray">G R Cawthray</name></author><author><name sortKey="Pang, J" sort="Pang, J" uniqKey="Pang J" first="J" last="Pang">J. Pang</name></author></analytic><series><title level="j">Plant, cell & environment</title><idno type="eISSN">1365-3040</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Carbon (metabolism)</term><term>Carboxylic Acids (metabolism)</term><term>Mycorrhizae (physiology)</term><term>Phaseolus (metabolism)</term><term>Phaseolus (microbiology)</term><term>Phosphorus (metabolism)</term><term>Rhizosphere (MeSH)</term><term>Symbiosis (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Carbon</term><term>Carboxylic Acids</term><term>Phosphorus</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Phaseolus</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Phaseolus</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Rhizosphere</term><term>Symbiosis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Two key plant adaptations for phosphorus (P) acquisition are carboxylate exudation into the rhizosphere and mycorrhizal symbioses. These target different soil P resources, presumably with different plant carbon costs. We examined the effect of inoculation with arbuscular mycorrhizal fungi (AMF) on amount of rhizosphere carboxylates and plant P uptake for 10 species of low-P adapted Kennedia grown for 23 weeks in low-P sand. Inoculation decreased carboxylates in some species (up to 50%), decreased plant dry weight (21%) and increased plant P content (23%). There was a positive logarithmic relationship between plant P content and the amount of rhizosphere citric acid for inoculated and uninoculated plants. Causality was indicated by experiments using sand where little citric acid was lost from the soil solution over 2 h and citric acid at low concentrations desorbed P into the soil solution. Senesced leaf P concentration was often low and P-resorption efficiencies reached >90%. In conclusion, we propose that mycorrhizally mediated resource partitioning occurred because inoculation reduced rhizosphere carboxylates, but increased plant P uptake. Hence, presumably, the proportion of plant P acquired from strongly sorbed sources decreased with inoculation, while the proportion from labile inorganic P increased. Implications for plant fitness under field conditions now require investigation.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22632405</PMID><DateCompleted><Year>2013</Year><Month>04</Month><Day>05</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-3040</ISSN><JournalIssue CitedMedium="Internet"><Volume>35</Volume><Issue>12</Issue><PubDate><Year>2012</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Plant, cell & environment</Title><ISOAbbreviation>Plant Cell Environ</ISOAbbreviation></Journal><ArticleTitle>Carbon trading for phosphorus gain: the balance between rhizosphere carboxylates and arbuscular mycorrhizal symbiosis in plant phosphorus acquisition.</ArticleTitle><Pagination><MedlinePgn>2170-80</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-3040.2012.02547.x</ELocationID><Abstract><AbstractText>Two key plant adaptations for phosphorus (P) acquisition are carboxylate exudation into the rhizosphere and mycorrhizal symbioses. These target different soil P resources, presumably with different plant carbon costs. We examined the effect of inoculation with arbuscular mycorrhizal fungi (AMF) on amount of rhizosphere carboxylates and plant P uptake for 10 species of low-P adapted Kennedia grown for 23 weeks in low-P sand. Inoculation decreased carboxylates in some species (up to 50%), decreased plant dry weight (21%) and increased plant P content (23%). There was a positive logarithmic relationship between plant P content and the amount of rhizosphere citric acid for inoculated and uninoculated plants. Causality was indicated by experiments using sand where little citric acid was lost from the soil solution over 2 h and citric acid at low concentrations desorbed P into the soil solution. Senesced leaf P concentration was often low and P-resorption efficiencies reached >90%. In conclusion, we propose that mycorrhizally mediated resource partitioning occurred because inoculation reduced rhizosphere carboxylates, but increased plant P uptake. Hence, presumably, the proportion of plant P acquired from strongly sorbed sources decreased with inoculation, while the proportion from labile inorganic P increased. Implications for plant fitness under field conditions now require investigation.</AbstractText><CopyrightInformation>© 2012 Blackwell Publishing Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Ryan</LastName><ForeName>M H</ForeName><Initials>MH</Initials><AffiliationInfo><Affiliation>Schools of Plant Biology, Institute of Agriculture, Future Farm Industries Cooperative Research Centre, The University of Western Australia, Crawley, WA 6009. megan.ryan@uwa.edu.au</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Tibbett</LastName><ForeName>M</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Edmonds-Tibbett</LastName><ForeName>T</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Suriyagoda</LastName><ForeName>L D B</ForeName><Initials>LD</Initials></Author><Author ValidYN="Y"><LastName>Lambers</LastName><ForeName>H</ForeName><Initials>H</Initials></Author><Author ValidYN="Y"><LastName>Cawthray</LastName><ForeName>G R</ForeName><Initials>GR</Initials></Author><Author ValidYN="Y"><LastName>Pang</LastName><ForeName>J</ForeName><Initials>J</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>2012</Year><Month>06</Month><Day>21</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 UI="D010758">Phosphorus</NameOfSubstance></Chemical><Chemical><RegistryNumber>7440-44-0</RegistryNumber><NameOfSubstance UI="D002244">Carbon</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002244" MajorTopicYN="N">Carbon</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002264" MajorTopicYN="N">Carboxylic Acids</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D027805" MajorTopicYN="N">Phaseolus</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010758" MajorTopicYN="N">Phosphorus</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D058441" MajorTopicYN="Y">Rhizosphere</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013559" MajorTopicYN="Y">Symbiosis</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>5</Month><Day>29</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>5</Month><Day>29</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>4</Month><Day>6</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">22632405</ArticleId><ArticleId IdType="doi">10.1111/j.1365-3040.2012.02547.x</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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