Substantial role for carbonic anhydrase in latitudinal variation in mesophyll conductance of Populus trichocarpa Torr. & Gray.
Identifieur interne : 001183 ( Main/Exploration ); précédent : 001182; suivant : 001184Substantial role for carbonic anhydrase in latitudinal variation in mesophyll conductance of Populus trichocarpa Torr. & Gray.
Auteurs : Mina Momayyezi [Canada] ; Robert D. Guy [Canada]Source :
- Plant, cell & environment [ 1365-3040 ] ; 2017.
Descripteurs français
- KwdFr :
- Acétazolamide (pharmacologie), Caractère quantitatif héréditaire (MeSH), Carbonic anhydrases (métabolisme), Cellules du mésophylle (effets des médicaments et des substances chimiques), Cellules du mésophylle (métabolisme), Génotype (MeSH), Photosynthèse (effets des médicaments et des substances chimiques), Populus (effets des médicaments et des substances chimiques), Populus (enzymologie), Populus (génétique), Stomates de plante (effets des médicaments et des substances chimiques), Stomates de plante (physiologie).
- MESH :
- effets des médicaments et des substances chimiques : Cellules du mésophylle, Photosynthèse, Populus, Stomates de plante.
- enzymologie : Populus.
- génétique : Populus.
- métabolisme : Carbonic anhydrases, Cellules du mésophylle.
- pharmacologie : Acétazolamide.
- physiologie : Stomates de plante.
- Caractère quantitatif héréditaire, Génotype.
English descriptors
- KwdEn :
- Acetazolamide (pharmacology), Carbonic Anhydrases (metabolism), Genotype (MeSH), Mesophyll Cells (drug effects), Mesophyll Cells (metabolism), Photosynthesis (drug effects), Plant Stomata (drug effects), Plant Stomata (physiology), Populus (drug effects), Populus (enzymology), Populus (genetics), Quantitative Trait, Heritable (MeSH).
- MESH :
- chemical , metabolism : Carbonic Anhydrases.
- chemical , pharmacology : Acetazolamide.
- drug effects : Mesophyll Cells, Photosynthesis, Plant Stomata, Populus.
- enzymology : Populus.
- genetics : Populus.
- metabolism : Mesophyll Cells.
- physiology : Plant Stomata.
- Genotype, Quantitative Trait, Heritable.
Abstract
In Populus trichocarpa (black cottonwood), net photosynthesis (An ) varies with latitude and, in northern genotypes, is supported by higher stomatal conductance (gs ). We report here a parallel cline in mesophyll conductance (gm ) and link this variation to carbonic anhydrase (CA) activity. Using concurrent carbon isotope discrimination and chlorophyll fluorescence methods, we examined the effects of acetazolamide, an inhibitor of CA, on gm in six representative genotypes (three from either end of the north-south cline). Acetazolamide reduced CA activity, gm , gs , chloroplast CO2 concentration (Cc ) and An at normal CO2 (400 μmol mol-1 ), the latter being reversible at saturating CO2 . Absolute reductions in An , gm and CA activity were greater in northern genotypes than in southern genotypes (P < 0.025) but percent reductions were similar. In contrast, northern genotypes showed lower percent reduction in Cc compared to southern genotypes (P < 0.025). The northern genotypes had greater CA activity relative to both leaf area (two-fold) and mass (1.8-fold) (P < 0.016). The relationship between CA activity and gm was similar whether the variation was inherent or inhibitor induced. We suggest that greater CA activity contributes to higher gm in northern P. trichocarpa genotypes, but other diffusion pathway components may also be involved.
DOI: 10.1111/pce.12851
PubMed: 27761902
Affiliations:
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Guy</name><affiliation wicri:level="4"><nlm:affiliation>Department of Forest and Conservation Sciences, Faculty of Forestry, University of British Columbia, Forest Sciences Centre, 2424 Main Mall, Vancouver, British Columbia, V6T 1Z4, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Forest and Conservation Sciences, Faculty of Forestry, University of British Columbia, Forest Sciences Centre, 2424 Main Mall, Vancouver, British Columbia, V6T 1Z4</wicri:regionArea><orgName type="university">Université de la Colombie-Britannique</orgName><placeName><settlement type="city">Vancouver</settlement><region type="state">Colombie-Britannique </region></placeName></affiliation></author></analytic><series><title level="j">Plant, cell & environment</title><idno type="eISSN">1365-3040</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acetazolamide (pharmacology)</term><term>Carbonic Anhydrases (metabolism)</term><term>Genotype (MeSH)</term><term>Mesophyll Cells (drug effects)</term><term>Mesophyll Cells (metabolism)</term><term>Photosynthesis (drug effects)</term><term>Plant Stomata (drug effects)</term><term>Plant Stomata (physiology)</term><term>Populus (drug effects)</term><term>Populus (enzymology)</term><term>Populus (genetics)</term><term>Quantitative Trait, Heritable (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acétazolamide (pharmacologie)</term><term>Caractère quantitatif héréditaire (MeSH)</term><term>Carbonic anhydrases (métabolisme)</term><term>Cellules du mésophylle (effets des médicaments et des substances chimiques)</term><term>Cellules du mésophylle (métabolisme)</term><term>Génotype (MeSH)</term><term>Photosynthèse (effets des médicaments et des substances chimiques)</term><term>Populus (effets des médicaments et des substances chimiques)</term><term>Populus (enzymologie)</term><term>Populus (génétique)</term><term>Stomates de plante (effets des médicaments et des substances chimiques)</term><term>Stomates de plante (physiologie)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Carbonic Anhydrases</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Acetazolamide</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Mesophyll Cells</term><term>Photosynthesis</term><term>Plant Stomata</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Cellules du mésophylle</term><term>Photosynthèse</term><term>Populus</term><term>Stomates de plante</term></keywords><keywords scheme="MESH" qualifier="enzymologie" xml:lang="fr"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="enzymology" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Mesophyll Cells</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Carbonic anhydrases</term><term>Cellules du mésophylle</term></keywords><keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Acétazolamide</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Stomates de plante</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Plant Stomata</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Genotype</term><term>Quantitative Trait, Heritable</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Caractère quantitatif héréditaire</term><term>Génotype</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In Populus trichocarpa (black cottonwood), net photosynthesis (A<sub>n</sub> ) varies with latitude and, in northern genotypes, is supported by higher stomatal conductance (g<sub>s</sub> ). We report here a parallel cline in mesophyll conductance (g<sub>m</sub> ) and link this variation to carbonic anhydrase (CA) activity. Using concurrent carbon isotope discrimination and chlorophyll fluorescence methods, we examined the effects of acetazolamide, an inhibitor of CA, on g<sub>m</sub> in six representative genotypes (three from either end of the north-south cline). Acetazolamide reduced CA activity, g<sub>m</sub> , g<sub>s</sub> , chloroplast CO<sub>2</sub> concentration (C<sub>c</sub> ) and A<sub>n</sub> at normal CO<sub>2</sub> (400 μmol mol<sup>-1</sup> ), the latter being reversible at saturating CO<sub>2</sub> . Absolute reductions in A<sub>n</sub> , g<sub>m</sub> and CA activity were greater in northern genotypes than in southern genotypes (P < 0.025) but percent reductions were similar. In contrast, northern genotypes showed lower percent reduction in C<sub>c</sub> compared to southern genotypes (P < 0.025). The northern genotypes had greater CA activity relative to both leaf area (two-fold) and mass (1.8-fold) (P < 0.016). The relationship between CA activity and g<sub>m</sub> was similar whether the variation was inherent or inhibitor induced. We suggest that greater CA activity contributes to higher g<sub>m</sub> in northern P. trichocarpa genotypes, but other diffusion pathway components may also be involved.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">27761902</PMID><DateCompleted><Year>2017</Year><Month>12</Month><Day>12</Day></DateCompleted><DateRevised><Year>2018</Year><Month>09</Month><Day>12</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-3040</ISSN><JournalIssue CitedMedium="Internet"><Volume>40</Volume><Issue>1</Issue><PubDate><Year>2017</Year><Month>01</Month></PubDate></JournalIssue><Title>Plant, cell & environment</Title><ISOAbbreviation>Plant Cell Environ</ISOAbbreviation></Journal><ArticleTitle>Substantial role for carbonic anhydrase in latitudinal variation in mesophyll conductance of Populus trichocarpa Torr. & Gray.</ArticleTitle><Pagination><MedlinePgn>138-149</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/pce.12851</ELocationID><Abstract><AbstractText>In Populus trichocarpa (black cottonwood), net photosynthesis (A<sub>n</sub> ) varies with latitude and, in northern genotypes, is supported by higher stomatal conductance (g<sub>s</sub> ). We report here a parallel cline in mesophyll conductance (g<sub>m</sub> ) and link this variation to carbonic anhydrase (CA) activity. Using concurrent carbon isotope discrimination and chlorophyll fluorescence methods, we examined the effects of acetazolamide, an inhibitor of CA, on g<sub>m</sub> in six representative genotypes (three from either end of the north-south cline). Acetazolamide reduced CA activity, g<sub>m</sub> , g<sub>s</sub> , chloroplast CO<sub>2</sub> concentration (C<sub>c</sub> ) and A<sub>n</sub> at normal CO<sub>2</sub> (400 μmol mol<sup>-1</sup> ), the latter being reversible at saturating CO<sub>2</sub> . Absolute reductions in A<sub>n</sub> , g<sub>m</sub> and CA activity were greater in northern genotypes than in southern genotypes (P < 0.025) but percent reductions were similar. In contrast, northern genotypes showed lower percent reduction in C<sub>c</sub> compared to southern genotypes (P < 0.025). The northern genotypes had greater CA activity relative to both leaf area (two-fold) and mass (1.8-fold) (P < 0.016). The relationship between CA activity and g<sub>m</sub> was similar whether the variation was inherent or inhibitor induced. We suggest that greater CA activity contributes to higher g<sub>m</sub> in northern P. trichocarpa genotypes, but other diffusion pathway components may also be involved.</AbstractText><CopyrightInformation>© 2016 John Wiley & Sons Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Momayyezi</LastName><ForeName>Mina</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Department of Forest and Conservation Sciences, Faculty of Forestry, University of British Columbia, Forest Sciences Centre, 2424 Main Mall, Vancouver, British Columbia, V6T 1Z4, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Guy</LastName><ForeName>Robert D</ForeName><Initials>RD</Initials><AffiliationInfo><Affiliation>Department of Forest and Conservation Sciences, Faculty of Forestry, University of British Columbia, Forest Sciences Centre, 2424 Main Mall, Vancouver, British Columbia, V6T 1Z4, Canada.</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></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2016</Year><Month>11</Month><Day>28</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Cell Environ</MedlineTA><NlmUniqueID>9309004</NlmUniqueID><ISSNLinking>0140-7791</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>EC 4.2.1.1</RegistryNumber><NameOfSubstance UI="D002256">Carbonic Anhydrases</NameOfSubstance></Chemical><Chemical><RegistryNumber>O3FX965V0I</RegistryNumber><NameOfSubstance UI="D000086">Acetazolamide</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000086" MajorTopicYN="N">Acetazolamide</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002256" MajorTopicYN="N">Carbonic Anhydrases</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005838" MajorTopicYN="N">Genotype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D058503" MajorTopicYN="N">Mesophyll Cells</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010788" MajorTopicYN="N">Photosynthesis</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D054046" MajorTopicYN="N">Plant Stomata</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000201" MajorTopicYN="Y">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D019655" MajorTopicYN="N">Quantitative Trait, Heritable</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">internal conductance</Keyword><Keyword MajorTopicYN="Y">local adaptation</Keyword><Keyword MajorTopicYN="Y">poplar</Keyword><Keyword MajorTopicYN="Y">transfer resistance</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2016</Year><Month>08</Month><Day>04</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2016</Year><Month>10</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2016</Year><Month>10</Month><Day>16</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2016</Year><Month>10</Month><Day>21</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2017</Year><Month>12</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2016</Year><Month>10</Month><Day>21</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">27761902</ArticleId><ArticleId IdType="doi">10.1111/pce.12851</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country><region><li>Colombie-Britannique </li></region><settlement><li>Vancouver</li></settlement><orgName><li>Université de la Colombie-Britannique</li></orgName></list><tree><country name="Canada"><region name="Colombie-Britannique "><name sortKey="Momayyezi, Mina" sort="Momayyezi, Mina" uniqKey="Momayyezi M" first="Mina" last="Momayyezi">Mina Momayyezi</name></region><name sortKey="Guy, Robert D" sort="Guy, Robert D" uniqKey="Guy R" first="Robert D" last="Guy">Robert D. 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