Reduced root cortical burden improves growth and grain yield under low phosphorus availability in maize.
Identifieur interne : 000935 ( Main/Corpus ); précédent : 000934; suivant : 000936Reduced root cortical burden improves growth and grain yield under low phosphorus availability in maize.
Auteurs : Tania Galindo-Casta Eda ; Kathleen M. Brown ; Jonathan P. LynchSource :
- Plant, cell & environment [ 1365-3040 ] ; 2018.
English descriptors
- KwdEn :
- Edible Grain (growth & development), Mycorrhizae (metabolism), Phosphorus (deficiency), Phosphorus (metabolism), Plant Roots (anatomy & histology), Plant Roots (metabolism), Plant Roots (physiology), Plant Shoots (metabolism), Plant Shoots (physiology), Zea mays (growth & development), Zea mays (metabolism).
- MESH :
- chemical , deficiency : Phosphorus.
- anatomy & histology : Plant Roots.
- growth & development : Edible Grain, Zea mays.
- metabolism : Mycorrhizae, Phosphorus, Plant Roots, Plant Shoots, Zea mays.
- physiology : Plant Roots, Plant Shoots.
Abstract
Root phenes and phene states that reduce the metabolic cost of soil exploration may improve plant growth under low phosphorus availability. We tested the hypothesis that under low phosphorus, reduced living cortical area (LCA) would increase soil exploration, phosphorus capture, biomass, and grain yield. Maize genotypes contrasting in LCA were grown in the field and in greenhouse mesocosms under optimal and suboptimal phosphorus regimes. Percent LCA in nodal roots ranged from 25% to 67%. Plants with 0.2 mm2 less LCA under low phosphorus had 75% less root segment respiration, 54% less root phosphorus content, rooted 20 cm deeper, allocated up to four times more roots between 60 and 120 cm depth, had between 20% and 150% more biomass, 35-40% greater leaf phosphorus content, and 60% greater grain yield compared with plants with high LCA. Low-LCA plants had up to 55% less arbuscular mycorrhizal colonization in axial roots, but this decrease was not correlated with biomass or phosphorus content. The LCA components cortical cell file number and cortical cell size were important for biomass and phosphorus content under low phosphorus. These results are consistent with the hypothesis that root phenes that decrease the metabolic cost of soil exploration are adaptive under phosphorus stress.
DOI: 10.1111/pce.13197
PubMed: 29574982
Links to Exploration step
pubmed:29574982Le document en format XML
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Lynch</name><affiliation><nlm:affiliation>Department of Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2018">2018</date><idno type="RBID">pubmed:29574982</idno><idno type="pmid">29574982</idno><idno type="doi">10.1111/pce.13197</idno><idno type="wicri:Area/Main/Corpus">000935</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000935</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Reduced root cortical burden improves growth and grain yield under low phosphorus availability in maize.</title><author><name sortKey="Galindo Casta Eda, Tania" sort="Galindo Casta Eda, Tania" uniqKey="Galindo Casta Eda T" first="Tania" last="Galindo-Casta Eda">Tania Galindo-Casta Eda</name><affiliation><nlm:affiliation>Department of Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Brown, Kathleen M" sort="Brown, Kathleen M" uniqKey="Brown K" first="Kathleen M" last="Brown">Kathleen M. Brown</name><affiliation><nlm:affiliation>Department of Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Lynch, Jonathan P" sort="Lynch, Jonathan P" uniqKey="Lynch J" first="Jonathan P" last="Lynch">Jonathan P. Lynch</name><affiliation><nlm:affiliation>Department of Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Plant, cell & environment</title><idno type="eISSN">1365-3040</idno><imprint><date when="2018" type="published">2018</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Edible Grain (growth & development)</term><term>Mycorrhizae (metabolism)</term><term>Phosphorus (deficiency)</term><term>Phosphorus (metabolism)</term><term>Plant Roots (anatomy & histology)</term><term>Plant Roots (metabolism)</term><term>Plant Roots (physiology)</term><term>Plant Shoots (metabolism)</term><term>Plant Shoots (physiology)</term><term>Zea mays (growth & development)</term><term>Zea mays (metabolism)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="deficiency" xml:lang="en"><term>Phosphorus</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Plant Roots</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Edible Grain</term><term>Zea mays</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Mycorrhizae</term><term>Phosphorus</term><term>Plant Roots</term><term>Plant Shoots</term><term>Zea mays</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Plant Roots</term><term>Plant Shoots</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Root phenes and phene states that reduce the metabolic cost of soil exploration may improve plant growth under low phosphorus availability. We tested the hypothesis that under low phosphorus, reduced living cortical area (LCA) would increase soil exploration, phosphorus capture, biomass, and grain yield. Maize genotypes contrasting in LCA were grown in the field and in greenhouse mesocosms under optimal and suboptimal phosphorus regimes. Percent LCA in nodal roots ranged from 25% to 67%. Plants with 0.2 mm<sup>2</sup> less LCA under low phosphorus had 75% less root segment respiration, 54% less root phosphorus content, rooted 20 cm deeper, allocated up to four times more roots between 60 and 120 cm depth, had between 20% and 150% more biomass, 35-40% greater leaf phosphorus content, and 60% greater grain yield compared with plants with high LCA. Low-LCA plants had up to 55% less arbuscular mycorrhizal colonization in axial roots, but this decrease was not correlated with biomass or phosphorus content. The LCA components cortical cell file number and cortical cell size were important for biomass and phosphorus content under low phosphorus. These results are consistent with the hypothesis that root phenes that decrease the metabolic cost of soil exploration are adaptive under phosphorus stress.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">29574982</PMID><DateCompleted><Year>2019</Year><Month>05</Month><Day>28</Day></DateCompleted><DateRevised><Year>2019</Year><Month>05</Month><Day>28</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-3040</ISSN><JournalIssue CitedMedium="Internet"><Volume>41</Volume><Issue>7</Issue><PubDate><Year>2018</Year><Month>07</Month></PubDate></JournalIssue><Title>Plant, cell & environment</Title><ISOAbbreviation>Plant Cell Environ</ISOAbbreviation></Journal><ArticleTitle>Reduced root cortical burden improves growth and grain yield under low phosphorus availability in maize.</ArticleTitle><Pagination><MedlinePgn>1579-1592</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/pce.13197</ELocationID><Abstract><AbstractText>Root phenes and phene states that reduce the metabolic cost of soil exploration may improve plant growth under low phosphorus availability. We tested the hypothesis that under low phosphorus, reduced living cortical area (LCA) would increase soil exploration, phosphorus capture, biomass, and grain yield. Maize genotypes contrasting in LCA were grown in the field and in greenhouse mesocosms under optimal and suboptimal phosphorus regimes. Percent LCA in nodal roots ranged from 25% to 67%. Plants with 0.2 mm<sup>2</sup> less LCA under low phosphorus had 75% less root segment respiration, 54% less root phosphorus content, rooted 20 cm deeper, allocated up to four times more roots between 60 and 120 cm depth, had between 20% and 150% more biomass, 35-40% greater leaf phosphorus content, and 60% greater grain yield compared with plants with high LCA. Low-LCA plants had up to 55% less arbuscular mycorrhizal colonization in axial roots, but this decrease was not correlated with biomass or phosphorus content. The LCA components cortical cell file number and cortical cell size were important for biomass and phosphorus content under low phosphorus. These results are consistent with the hypothesis that root phenes that decrease the metabolic cost of soil exploration are adaptive under phosphorus stress.</AbstractText><CopyrightInformation>© 2018 John Wiley & Sons Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Galindo-Castañeda</LastName><ForeName>Tania</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>Department of Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Brown</LastName><ForeName>Kathleen M</ForeName><Initials>KM</Initials><AffiliationInfo><Affiliation>Department of Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lynch</LastName><ForeName>Jonathan P</ForeName><Initials>JP</Initials><Identifier Source="ORCID">0000-0002-7265-9790</Identifier><AffiliationInfo><Affiliation>Department of Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2018</Year><Month>05</Month><Day>16</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Cell Environ</MedlineTA><NlmUniqueID>9309004</NlmUniqueID><ISSNLinking>0140-7791</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>27YLU75U4W</RegistryNumber><NameOfSubstance UI="D010758">Phosphorus</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002523" MajorTopicYN="N">Edible Grain</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010758" MajorTopicYN="N">Phosphorus</DescriptorName><QualifierName UI="Q000172" MajorTopicYN="Y">deficiency</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018520" MajorTopicYN="N">Plant Shoots</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003313" MajorTopicYN="N">Zea mays</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">living cortical area</Keyword><Keyword MajorTopicYN="Y">maize</Keyword><Keyword MajorTopicYN="Y">phosphorus</Keyword><Keyword MajorTopicYN="Y">root anatomy</Keyword><Keyword MajorTopicYN="Y">root cortical aerenchyma</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2017</Year><Month>05</Month><Day>23</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2018</Year><Month>03</Month><Day>09</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2018</Year><Month>03</Month><Day>10</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2018</Year><Month>3</Month><Day>27</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2019</Year><Month>5</Month><Day>29</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2018</Year><Month>3</Month><Day>26</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">29574982</ArticleId><ArticleId IdType="doi">10.1111/pce.13197</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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