Linking Auxin with Photosynthetic Rate via Leaf Venation.
Identifieur interne : 000531 ( PubMed/Curation ); précédent : 000530; suivant : 000532Linking Auxin with Photosynthetic Rate via Leaf Venation.
Auteurs : Scott A M. Mcadam [Australie] ; Morgane P. Eléouët [Royaume-Uni] ; Melanie Best ; Timothy J. Brodribb [Australie] ; Madeline Carins Murphy [Australie] ; Sam D. Cook [Australie] ; Marion Dalmais [France] ; Theodore Dimitriou [Australie] ; Ariane Gélinas-Marion [Australie] ; Warwick M. Gill [Australie] ; Matthew Hegarty [Royaume-Uni] ; Julie M I. Hofer [Royaume-Uni] ; Mary Maconochie [Australie] ; Erin L. Mcadam [Australie] ; Peter Mcguiness [Australie] ; David S. Nichols [Australie] ; John J. Ross [Australie] ; Frances C. Sussmilch [Australie] ; Shelley Urquhart [Australie]Source :
- Plant physiology [ 1532-2548 ] ; 2017.
Abstract
Land plants lose vast quantities of water to the atmosphere during photosynthetic gas exchange. In angiosperms, a complex network of veins irrigates the leaf, and it is widely held that the density and placement of these veins determines maximum leaf hydraulic capacity and thus maximum photosynthetic rate. This theory is largely based on interspecific comparisons and has never been tested using vein mutants to examine the specific impact of leaf vein morphology on plant water relations. Here we characterize mutants at the Crispoid (Crd) locus in pea (Pisum sativum), which have altered auxin homeostasis and activity in developing leaves, as well as reduced leaf vein density and aberrant placement of free-ending veinlets. This altered vein phenotype in crd mutant plants results in a significant reduction in leaf hydraulic conductance and leaf gas exchange. We find Crispoid to be a member of the YUCCA family of auxin biosynthetic genes. Our results link auxin biosynthesis with maximum photosynthetic rate through leaf venation and substantiate the theory that an increase in the density of leaf veins coupled with their efficient placement can drive increases in leaf photosynthetic capacity.
DOI: 10.1104/pp.17.00535
PubMed: 28733387
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Mcadam</name><affiliation wicri:level="1"><nlm:affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Eleouet, Morgane P" sort="Eleouet, Morgane P" uniqKey="Eleouet M" first="Morgane P" last="Eléouët">Morgane P. Eléouët</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth SY23 3EE, United Kingdom.</nlm:affiliation><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth SY23 3EE</wicri:regionArea></affiliation></author><author><name sortKey="Best, Melanie" sort="Best, Melanie" uniqKey="Best M" first="Melanie" last="Best">Melanie Best</name></author><author><name sortKey="Brodribb, Timothy J" sort="Brodribb, Timothy J" uniqKey="Brodribb T" first="Timothy J" last="Brodribb">Timothy J. Brodribb</name><affiliation wicri:level="1"><nlm:affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Murphy, Madeline Carins" sort="Murphy, Madeline Carins" uniqKey="Murphy M" first="Madeline Carins" last="Murphy">Madeline Carins Murphy</name><affiliation wicri:level="1"><nlm:affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Cook, Sam D" sort="Cook, Sam D" uniqKey="Cook S" first="Sam D" last="Cook">Sam D. Cook</name><affiliation wicri:level="1"><nlm:affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Dalmais, Marion" sort="Dalmais, Marion" uniqKey="Dalmais M" first="Marion" last="Dalmais">Marion Dalmais</name><affiliation wicri:level="1"><nlm:affiliation>Institue of Plant Sciences, Paris Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Baitment 630, 91405 Orsay, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Institue of Plant Sciences, Paris Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Baitment 630, 91405 Orsay</wicri:regionArea></affiliation></author><author><name sortKey="Dimitriou, Theodore" sort="Dimitriou, Theodore" uniqKey="Dimitriou T" first="Theodore" last="Dimitriou">Theodore Dimitriou</name><affiliation wicri:level="1"><nlm:affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Gelinas Marion, Ariane" sort="Gelinas Marion, Ariane" uniqKey="Gelinas Marion A" first="Ariane" last="Gélinas-Marion">Ariane Gélinas-Marion</name><affiliation wicri:level="1"><nlm:affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Gill, Warwick M" sort="Gill, Warwick M" uniqKey="Gill W" first="Warwick M" last="Gill">Warwick M. Gill</name><affiliation wicri:level="1"><nlm:affiliation>Tasmanian Institute of Agriculture and School of Land and Food, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Tasmanian Institute of Agriculture and School of Land and Food, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Hegarty, Matthew" sort="Hegarty, Matthew" uniqKey="Hegarty M" first="Matthew" last="Hegarty">Matthew Hegarty</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth SY23 3EE, United Kingdom.</nlm:affiliation><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth SY23 3EE</wicri:regionArea></affiliation></author><author><name sortKey="Hofer, Julie M I" sort="Hofer, Julie M I" uniqKey="Hofer J" first="Julie M I" last="Hofer">Julie M I. Hofer</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth SY23 3EE, United Kingdom.</nlm:affiliation><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth SY23 3EE</wicri:regionArea></affiliation></author><author><name sortKey="Maconochie, Mary" sort="Maconochie, Mary" uniqKey="Maconochie M" first="Mary" last="Maconochie">Mary Maconochie</name><affiliation wicri:level="1"><nlm:affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Mcadam, Erin L" sort="Mcadam, Erin L" uniqKey="Mcadam E" first="Erin L" last="Mcadam">Erin L. Mcadam</name><affiliation wicri:level="1"><nlm:affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Mcguiness, Peter" sort="Mcguiness, Peter" uniqKey="Mcguiness P" first="Peter" last="Mcguiness">Peter Mcguiness</name><affiliation wicri:level="1"><nlm:affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Nichols, David S" sort="Nichols, David S" uniqKey="Nichols D" first="David S" last="Nichols">David S. Nichols</name><affiliation wicri:level="1"><nlm:affiliation>Central Science Laboratory, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Central Science Laboratory, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Ross, John J" sort="Ross, John J" uniqKey="Ross J" first="John J" last="Ross">John J. Ross</name><affiliation wicri:level="1"><nlm:affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Sussmilch, Frances C" sort="Sussmilch, Frances C" uniqKey="Sussmilch F" first="Frances C" last="Sussmilch">Frances C. Sussmilch</name><affiliation wicri:level="1"><nlm:affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author><author><name sortKey="Urquhart, Shelley" sort="Urquhart, Shelley" uniqKey="Urquhart S" first="Shelley" last="Urquhart">Shelley Urquhart</name><affiliation wicri:level="1"><nlm:affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001</wicri:regionArea></affiliation></author></analytic><series><title level="j">Plant physiology</title><idno type="eISSN">1532-2548</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Land plants lose vast quantities of water to the atmosphere during photosynthetic gas exchange. In angiosperms, a complex network of veins irrigates the leaf, and it is widely held that the density and placement of these veins determines maximum leaf hydraulic capacity and thus maximum photosynthetic rate. This theory is largely based on interspecific comparisons and has never been tested using vein mutants to examine the specific impact of leaf vein morphology on plant water relations. Here we characterize mutants at the Crispoid (Crd) locus in pea (Pisum sativum), which have altered auxin homeostasis and activity in developing leaves, as well as reduced leaf vein density and aberrant placement of free-ending veinlets. This altered vein phenotype in crd mutant plants results in a significant reduction in leaf hydraulic conductance and leaf gas exchange. We find Crispoid to be a member of the YUCCA family of auxin biosynthetic genes. Our results link auxin biosynthesis with maximum photosynthetic rate through leaf venation and substantiate the theory that an increase in the density of leaf veins coupled with their efficient placement can drive increases in leaf photosynthetic capacity.</div></front></TEI><pubmed><MedlineCitation Status="In-Process" Owner="NLM"><PMID Version="1">28733387</PMID><DateCreated><Year>2017</Year><Month>07</Month><Day>22</Day></DateCreated><DateRevised><Year>2017</Year><Month>09</Month><Day>07</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1532-2548</ISSN><JournalIssue CitedMedium="Internet"><Volume>175</Volume><Issue>1</Issue><PubDate><Year>2017</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Plant physiology</Title><ISOAbbreviation>Plant Physiol.</ISOAbbreviation></Journal><ArticleTitle>Linking Auxin with Photosynthetic Rate via Leaf Venation.</ArticleTitle><Pagination><MedlinePgn>351-360</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1104/pp.17.00535</ELocationID><Abstract><AbstractText>Land plants lose vast quantities of water to the atmosphere during photosynthetic gas exchange. In angiosperms, a complex network of veins irrigates the leaf, and it is widely held that the density and placement of these veins determines maximum leaf hydraulic capacity and thus maximum photosynthetic rate. This theory is largely based on interspecific comparisons and has never been tested using vein mutants to examine the specific impact of leaf vein morphology on plant water relations. Here we characterize mutants at the Crispoid (Crd) locus in pea (Pisum sativum), which have altered auxin homeostasis and activity in developing leaves, as well as reduced leaf vein density and aberrant placement of free-ending veinlets. This altered vein phenotype in crd mutant plants results in a significant reduction in leaf hydraulic conductance and leaf gas exchange. We find Crispoid to be a member of the YUCCA family of auxin biosynthetic genes. Our results link auxin biosynthesis with maximum photosynthetic rate through leaf venation and substantiate the theory that an increase in the density of leaf veins coupled with their efficient placement can drive increases in leaf photosynthetic capacity.</AbstractText><CopyrightInformation>© 2017 American Society of Plant Biologists. All Rights Reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>McAdam</LastName><ForeName>Scott A M</ForeName><Initials>SAM</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-9625-6750</Identifier><AffiliationInfo><Affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Eléouët</LastName><ForeName>Morgane P</ForeName><Initials>MP</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-1389-5654</Identifier><AffiliationInfo><Affiliation>Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth SY23 3EE, United Kingdom.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Best</LastName><ForeName>Melanie</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Brodribb</LastName><ForeName>Timothy J</ForeName><Initials>TJ</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-4964-6107</Identifier><AffiliationInfo><Affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Murphy</LastName><ForeName>Madeline Carins</ForeName><Initials>MC</Initials><Identifier Source="ORCID">http://orcid.org/0000-0003-4370-9485</Identifier><AffiliationInfo><Affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Cook</LastName><ForeName>Sam D</ForeName><Initials>SD</Initials><Identifier Source="ORCID">http://orcid.org/0000-0003-0950-6131</Identifier><AffiliationInfo><Affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Dalmais</LastName><ForeName>Marion</ForeName><Initials>M</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-1673-3095</Identifier><AffiliationInfo><Affiliation>Institue of Plant Sciences, Paris Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Baitment 630, 91405 Orsay, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Dimitriou</LastName><ForeName>Theodore</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Gélinas-Marion</LastName><ForeName>Ariane</ForeName><Initials>A</Initials><Identifier Source="ORCID">http://orcid.org/0000-0003-0446-6193</Identifier><AffiliationInfo><Affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Gill</LastName><ForeName>Warwick M</ForeName><Initials>WM</Initials><AffiliationInfo><Affiliation>Tasmanian Institute of Agriculture and School of Land and Food, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hegarty</LastName><ForeName>Matthew</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth SY23 3EE, United Kingdom.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hofer</LastName><ForeName>Julie M I</ForeName><Initials>JMI</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-0158-7574</Identifier><AffiliationInfo><Affiliation>Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth SY23 3EE, United Kingdom.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Maconochie</LastName><ForeName>Mary</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>McAdam</LastName><ForeName>Erin L</ForeName><Initials>EL</Initials><AffiliationInfo><Affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>McGuiness</LastName><ForeName>Peter</ForeName><Initials>P</Initials><Identifier Source="ORCID">http://orcid.org/0000-0003-2871-2774</Identifier><AffiliationInfo><Affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Nichols</LastName><ForeName>David S</ForeName><Initials>DS</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-8066-3132</Identifier><AffiliationInfo><Affiliation>Central Science Laboratory, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ross</LastName><ForeName>John J</ForeName><Initials>JJ</Initials><Identifier Source="ORCID">http://orcid.org/0000-0003-3665-2062</Identifier><AffiliationInfo><Affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Sussmilch</LastName><ForeName>Frances C</ForeName><Initials>FC</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-8659-1125</Identifier><AffiliationInfo><Affiliation>School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Urquhart</LastName><ForeName>Shelley</ForeName><Initials>S</Initials><Identifier 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