Effects of plant roots and arbuscular mycorrhizas on soil phosphorus leaching.
Identifieur interne : 000177 ( Main/Exploration ); précédent : 000176; suivant : 000178Effects of plant roots and arbuscular mycorrhizas on soil phosphorus leaching.
Auteurs : Cuc T K. Tran [Australie] ; Stephanie J. Watts-Williams [Australie] ; Ronald J. Smernik [Australie] ; Timothy R. Cavagnaro [Australie]Source :
- The Science of the total environment [ 1879-1026 ] ; 2020.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical : Phosphorus, Soil.
- Lycopersicon esculentum, Mycorrhizae, Plant Roots, Soil Microbiology.
Abstract
While the impact of arbuscular mycorrhizal fungi (AMF) on phosphorus (P) uptake is well understood, the mechanism(s) of how these fungi affect P leaching from soil is still unclear. Here we present results of a study in which we grew a mycorrhiza-defective tomato (Solanum lycopersicum L.) genotype (named rmc) and its mycorrhizal wild-type progenitor (named 76R) in microcosms containing non-sterile soil, to examine the influence of roots and AMF on P leaching. More P was leached from the planted microcosms as compared to the plant-free controls. Further, although there was more plant biomass and greater P uptake in the mycorrhizal plant treatments, these treatments were associated with the most leaching of total P, reactive P, and dissolved organic carbon (DOC). There was a strong correlation between the total P and DOC leached, suggesting that root and fungal exudates may have affected P leaching. These findings provide new insights into the impact of roots and AMF on nutrient leaching in soils.
DOI: 10.1016/j.scitotenv.2020.137847
PubMed: 32199376
Affiliations:
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Tran</name><affiliation wicri:level="1"><nlm:affiliation>The Waite Research Institute and The School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, PMB1, Glen Osmond, SA 5064, Australia. Electronic address: cuc.tran@adelaide.edu.au.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>The Waite Research Institute and The School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, PMB1, Glen Osmond, SA 5064</wicri:regionArea><wicri:noRegion>SA 5064</wicri:noRegion></affiliation></author><author><name sortKey="Watts Williams, Stephanie J" sort="Watts Williams, Stephanie J" uniqKey="Watts Williams S" first="Stephanie J" last="Watts-Williams">Stephanie J. 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Cavagnaro</name><affiliation wicri:level="1"><nlm:affiliation>The Waite Research Institute and The School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, PMB1, Glen Osmond, SA 5064, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>The Waite Research Institute and The School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, PMB1, Glen Osmond, SA 5064</wicri:regionArea><wicri:noRegion>SA 5064</wicri:noRegion></affiliation></author></analytic><series><title level="j">The Science of the total environment</title><idno type="eISSN">1879-1026</idno><imprint><date when="2020" type="published">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Lycopersicon esculentum (MeSH)</term><term>Mycorrhizae (MeSH)</term><term>Phosphorus (MeSH)</term><term>Plant Roots (MeSH)</term><term>Soil (MeSH)</term><term>Soil Microbiology (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Lycopersicon esculentum (MeSH)</term><term>Microbiologie du sol (MeSH)</term><term>Mycorhizes (MeSH)</term><term>Phosphore (MeSH)</term><term>Racines de plante (MeSH)</term><term>Sol (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Phosphorus</term><term>Soil</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Lycopersicon esculentum</term><term>Mycorrhizae</term><term>Plant Roots</term><term>Soil Microbiology</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Lycopersicon esculentum</term><term>Microbiologie du sol</term><term>Mycorhizes</term><term>Phosphore</term><term>Racines de plante</term><term>Sol</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">While the impact of arbuscular mycorrhizal fungi (AMF) on phosphorus (P) uptake is well understood, the mechanism(s) of how these fungi affect P leaching from soil is still unclear. Here we present results of a study in which we grew a mycorrhiza-defective tomato (Solanum lycopersicum L.) genotype (named rmc) and its mycorrhizal wild-type progenitor (named 76R) in microcosms containing non-sterile soil, to examine the influence of roots and AMF on P leaching. More P was leached from the planted microcosms as compared to the plant-free controls. Further, although there was more plant biomass and greater P uptake in the mycorrhizal plant treatments, these treatments were associated with the most leaching of total P, reactive P, and dissolved organic carbon (DOC). There was a strong correlation between the total P and DOC leached, suggesting that root and fungal exudates may have affected P leaching. These findings provide new insights into the impact of roots and AMF on nutrient leaching in soils.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">32199376</PMID><DateCompleted><Year>2020</Year><Month>06</Month><Day>29</Day></DateCompleted><DateRevised><Year>2020</Year><Month>06</Month><Day>29</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1879-1026</ISSN><JournalIssue CitedMedium="Internet"><Volume>722</Volume><PubDate><Year>2020</Year><Month>Jun</Month><Day>20</Day></PubDate></JournalIssue><Title>The Science of the total environment</Title><ISOAbbreviation>Sci Total Environ</ISOAbbreviation></Journal><ArticleTitle>Effects of plant roots and arbuscular mycorrhizas on soil phosphorus leaching.</ArticleTitle><Pagination><MedlinePgn>137847</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S0048-9697(20)31359-0</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.scitotenv.2020.137847</ELocationID><Abstract><AbstractText>While the impact of arbuscular mycorrhizal fungi (AMF) on phosphorus (P) uptake is well understood, the mechanism(s) of how these fungi affect P leaching from soil is still unclear. Here we present results of a study in which we grew a mycorrhiza-defective tomato (Solanum lycopersicum L.) genotype (named rmc) and its mycorrhizal wild-type progenitor (named 76R) in microcosms containing non-sterile soil, to examine the influence of roots and AMF on P leaching. More P was leached from the planted microcosms as compared to the plant-free controls. Further, although there was more plant biomass and greater P uptake in the mycorrhizal plant treatments, these treatments were associated with the most leaching of total P, reactive P, and dissolved organic carbon (DOC). There was a strong correlation between the total P and DOC leached, suggesting that root and fungal exudates may have affected P leaching. These findings provide new insights into the impact of roots and AMF on nutrient leaching in soils.</AbstractText><CopyrightInformation>Copyright © 2020 Elsevier B.V. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Tran</LastName><ForeName>Cuc T K</ForeName><Initials>CTK</Initials><AffiliationInfo><Affiliation>The Waite Research Institute and The School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, PMB1, Glen Osmond, SA 5064, Australia. Electronic address: cuc.tran@adelaide.edu.au.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Watts-Williams</LastName><ForeName>Stephanie J</ForeName><Initials>SJ</Initials><AffiliationInfo><Affiliation>The Waite Research Institute and The School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, PMB1, Glen Osmond, SA 5064, Australia; Australian Research Council Centre of Excellence in Plant Energy Biology, University of Adelaide, Glen Osmond, South Australia, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Smernik</LastName><ForeName>Ronald J</ForeName><Initials>RJ</Initials><AffiliationInfo><Affiliation>The Waite Research Institute and The School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, PMB1, Glen Osmond, SA 5064, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Cavagnaro</LastName><ForeName>Timothy R</ForeName><Initials>TR</Initials><AffiliationInfo><Affiliation>The Waite Research Institute and The School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, PMB1, Glen Osmond, SA 5064, Australia.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2020</Year><Month>03</Month><Day>10</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Sci Total Environ</MedlineTA><NlmUniqueID>0330500</NlmUniqueID><ISSNLinking>0048-9697</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical><Chemical><RegistryNumber>27YLU75U4W</RegistryNumber><NameOfSubstance UI="D010758">Phosphorus</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D018551" MajorTopicYN="N">Lycopersicon esculentum</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="Y">Mycorrhizae</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010758" MajorTopicYN="N">Phosphorus</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="N">Soil Microbiology</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Arbuscular mycorrhizal fungi</Keyword><Keyword MajorTopicYN="N">Dissolved organic carbon</Keyword><Keyword MajorTopicYN="N">Mycorrhiza-defective tomato mutant</Keyword><Keyword MajorTopicYN="N">Phosphorus</Keyword><Keyword MajorTopicYN="N">Reactive phosphorus</Keyword><Keyword MajorTopicYN="N">Unreactive phosphorus</Keyword></KeywordList><CoiStatement>Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.</CoiStatement></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2019</Year><Month>11</Month><Day>01</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2020</Year><Month>02</Month><Day>13</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2020</Year><Month>03</Month><Day>09</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2020</Year><Month>3</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>7</Month><Day>1</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>3</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32199376</ArticleId><ArticleId IdType="pii">S0048-9697(20)31359-0</ArticleId><ArticleId IdType="doi">10.1016/j.scitotenv.2020.137847</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Australie</li></country></list><tree><country name="Australie"><noRegion><name sortKey="Tran, Cuc T K" sort="Tran, Cuc T K" uniqKey="Tran C" first="Cuc T K" last="Tran">Cuc T K. Tran</name></noRegion><name sortKey="Cavagnaro, Timothy R" sort="Cavagnaro, Timothy R" uniqKey="Cavagnaro T" first="Timothy R" last="Cavagnaro">Timothy R. Cavagnaro</name><name sortKey="Smernik, Ronald J" sort="Smernik, Ronald J" uniqKey="Smernik R" first="Ronald J" last="Smernik">Ronald J. Smernik</name><name sortKey="Watts Williams, Stephanie J" sort="Watts Williams, Stephanie J" uniqKey="Watts Williams S" first="Stephanie J" last="Watts-Williams">Stephanie J. Watts-Williams</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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