Isoprene emission is not temperature-dependent during and after severe drought-stress: a physiological and biochemical analysis.
Identifieur interne : 003880 ( Main/Exploration ); précédent : 003879; suivant : 003881Isoprene emission is not temperature-dependent during and after severe drought-stress: a physiological and biochemical analysis.
Auteurs : Alessio Fortunati [Italie] ; Csengele Barta ; Federico Brilli ; Mauro Centritto ; Ina Zimmer ; Jörg-Peter Schnitzler ; Francesco LoretoSource :
- The Plant journal : for cell and molecular biology [ 1365-313X ] ; 2008.
Descripteurs français
- KwdFr :
- Alkyl et aryl transferases (génétique), Alkyl et aryl transferases (métabolisme), Butadiènes (métabolisme), Cinétique (MeSH), Facteurs temps (MeSH), Hémiterpènes (métabolisme), Pentanes (métabolisme), Photosynthèse (physiologie), Populus (génétique), Populus (métabolisme), Populus (physiologie), Régulation de l'expression des gènes végétaux (MeSH), Sécheresses (MeSH), Température (MeSH).
- MESH :
- génétique : Alkyl et aryl transferases, Populus.
- métabolisme : Alkyl et aryl transferases, Butadiènes, Hémiterpènes, Pentanes, Populus.
- physiologie : Photosynthèse, Populus.
- Cinétique, Facteurs temps, Régulation de l'expression des gènes végétaux, Sécheresses, Température.
English descriptors
- KwdEn :
- Alkyl and Aryl Transferases (genetics), Alkyl and Aryl Transferases (metabolism), Butadienes (metabolism), Droughts (MeSH), Gene Expression Regulation, Plant (MeSH), Hemiterpenes (metabolism), Kinetics (MeSH), Pentanes (metabolism), Photosynthesis (physiology), Populus (genetics), Populus (metabolism), Populus (physiology), Temperature (MeSH), Time Factors (MeSH).
- MESH :
- chemical , genetics : Alkyl and Aryl Transferases.
- chemical , metabolism : Alkyl and Aryl Transferases, Butadienes, Hemiterpenes, Pentanes.
- genetics : Populus.
- metabolism : Populus.
- physiology : Photosynthesis, Populus.
- Droughts, Gene Expression Regulation, Plant, Kinetics, Temperature, Time Factors.
Abstract
SUMMARY
Black poplar (Populus nigra L.) plants grown at 25 and 35 degrees C were subjected to drought stress to assess the combined impact of two consequences of global climate change--rising temperature and drought--on isoprene biosynthesis and emission. At both temperatures, photosynthesis was inhibited by moderate drought, but isoprene emission only decreased when drought was prolonged. The mRNA transcript level, protein concentration and activity of isoprene synthase (ISPS) changed in concert with isoprene emission during drought stress. However, ISPS activity decreased before isoprene emission during drought development, indicating a tighter control of the emission at a transcriptional or post-transcriptional level under moderate drought stress, and at both temperatures. A residual isoprene emission was measured when photosynthesis was totally inhibited after 35 days of drought. This photosynthesis-independent emission of isoprene was probably dependent on a cytosolic carbon supply as all the properties of ISPS were drastically inhibited. Isoprene emission was associated with dark respiration during the entire drought stress period, and at both temperatures, indicating that the two processes are sustained by, but do not compete for, the same carbon source. Isoprene emission was directly related to phosphoenolpyruvate carboxylase activity in plants grown at 25 degrees C and inversely related in plants grown at 35 degrees C, suggesting a strong temperature control on the regulation of the pyruvate flowing from the cytosol to the plastidic isoprenoid biosynthetic pathway under drought stress and recovery. In re-watered plants, the temperature control on isoprene emission was suppressed, despite complete recovery of photosynthesis and ISPS activity similar to levels in plants subjected to mild drought stress. Our results reveal the overriding effects of drought on isoprene emission, possibly affecting protein level or substrate supply. These effects may largely offset the predicted impact of rising temperatures on the emission of isoprene in terrestrial ecosystems.
DOI: 10.1111/j.1365-313X.2008.03538.x
PubMed: 18445130
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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last="Loreto">Francesco Loreto</name></author></analytic><series><title level="j">The Plant journal : for cell and molecular biology</title><idno type="eISSN">1365-313X</idno><imprint><date when="2008" type="published">2008</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alkyl and Aryl Transferases (genetics)</term><term>Alkyl and Aryl Transferases (metabolism)</term><term>Butadienes (metabolism)</term><term>Droughts (MeSH)</term><term>Gene Expression Regulation, Plant (MeSH)</term><term>Hemiterpenes (metabolism)</term><term>Kinetics (MeSH)</term><term>Pentanes (metabolism)</term><term>Photosynthesis (physiology)</term><term>Populus (genetics)</term><term>Populus (metabolism)</term><term>Populus (physiology)</term><term>Temperature (MeSH)</term><term>Time Factors (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Alkyl et aryl transferases (génétique)</term><term>Alkyl et aryl transferases (métabolisme)</term><term>Butadiènes (métabolisme)</term><term>Cinétique (MeSH)</term><term>Facteurs temps (MeSH)</term><term>Hémiterpènes (métabolisme)</term><term>Pentanes (métabolisme)</term><term>Photosynthèse (physiologie)</term><term>Populus (génétique)</term><term>Populus (métabolisme)</term><term>Populus (physiologie)</term><term>Régulation de l'expression des gènes végétaux (MeSH)</term><term>Sécheresses (MeSH)</term><term>Température (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Alkyl and Aryl Transferases</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Alkyl and Aryl Transferases</term><term>Butadienes</term><term>Hemiterpenes</term><term>Pentanes</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Alkyl et aryl transferases</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Alkyl et aryl transferases</term><term>Butadiènes</term><term>Hémiterpènes</term><term>Pentanes</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Photosynthèse</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Photosynthesis</term><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Droughts</term><term>Gene Expression Regulation, Plant</term><term>Kinetics</term><term>Temperature</term><term>Time Factors</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Cinétique</term><term>Facteurs temps</term><term>Régulation de l'expression des gènes végétaux</term><term>Sécheresses</term><term>Température</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><b>SUMMARY</b></p><p>Black poplar (Populus nigra L.) plants grown at 25 and 35 degrees C were subjected to drought stress to assess the combined impact of two consequences of global climate change--rising temperature and drought--on isoprene biosynthesis and emission. At both temperatures, photosynthesis was inhibited by moderate drought, but isoprene emission only decreased when drought was prolonged. The mRNA transcript level, protein concentration and activity of isoprene synthase (ISPS) changed in concert with isoprene emission during drought stress. However, ISPS activity decreased before isoprene emission during drought development, indicating a tighter control of the emission at a transcriptional or post-transcriptional level under moderate drought stress, and at both temperatures. A residual isoprene emission was measured when photosynthesis was totally inhibited after 35 days of drought. This photosynthesis-independent emission of isoprene was probably dependent on a cytosolic carbon supply as all the properties of ISPS were drastically inhibited. Isoprene emission was associated with dark respiration during the entire drought stress period, and at both temperatures, indicating that the two processes are sustained by, but do not compete for, the same carbon source. Isoprene emission was directly related to phosphoenolpyruvate carboxylase activity in plants grown at 25 degrees C and inversely related in plants grown at 35 degrees C, suggesting a strong temperature control on the regulation of the pyruvate flowing from the cytosol to the plastidic isoprenoid biosynthetic pathway under drought stress and recovery. In re-watered plants, the temperature control on isoprene emission was suppressed, despite complete recovery of photosynthesis and ISPS activity similar to levels in plants subjected to mild drought stress. Our results reveal the overriding effects of drought on isoprene emission, possibly affecting protein level or substrate supply. These effects may largely offset the predicted impact of rising temperatures on the emission of isoprene in terrestrial ecosystems.</p></div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">18445130</PMID><DateCompleted><Year>2008</Year><Month>12</Month><Day>01</Day></DateCompleted><DateRevised><Year>2013</Year><Month>05</Month><Day>20</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-313X</ISSN><JournalIssue CitedMedium="Internet"><Volume>55</Volume><Issue>4</Issue><PubDate><Year>2008</Year><Month>Aug</Month></PubDate></JournalIssue><Title>The Plant journal : for cell and molecular biology</Title><ISOAbbreviation>Plant J</ISOAbbreviation></Journal><ArticleTitle>Isoprene emission is not temperature-dependent during and after severe drought-stress: a physiological and biochemical analysis.</ArticleTitle><Pagination><MedlinePgn>687-97</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-313X.2008.03538.x</ELocationID><Abstract><AbstractText Label="SUMMARY" NlmCategory="CONCLUSIONS">Black poplar (Populus nigra L.) plants grown at 25 and 35 degrees C were subjected to drought stress to assess the combined impact of two consequences of global climate change--rising temperature and drought--on isoprene biosynthesis and emission. At both temperatures, photosynthesis was inhibited by moderate drought, but isoprene emission only decreased when drought was prolonged. The mRNA transcript level, protein concentration and activity of isoprene synthase (ISPS) changed in concert with isoprene emission during drought stress. However, ISPS activity decreased before isoprene emission during drought development, indicating a tighter control of the emission at a transcriptional or post-transcriptional level under moderate drought stress, and at both temperatures. A residual isoprene emission was measured when photosynthesis was totally inhibited after 35 days of drought. This photosynthesis-independent emission of isoprene was probably dependent on a cytosolic carbon supply as all the properties of ISPS were drastically inhibited. Isoprene emission was associated with dark respiration during the entire drought stress period, and at both temperatures, indicating that the two processes are sustained by, but do not compete for, the same carbon source. Isoprene emission was directly related to phosphoenolpyruvate carboxylase activity in plants grown at 25 degrees C and inversely related in plants grown at 35 degrees C, suggesting a strong temperature control on the regulation of the pyruvate flowing from the cytosol to the plastidic isoprenoid biosynthetic pathway under drought stress and recovery. In re-watered plants, the temperature control on isoprene emission was suppressed, despite complete recovery of photosynthesis and ISPS activity similar to levels in plants subjected to mild drought stress. Our results reveal the overriding effects of drought on isoprene emission, possibly affecting protein level or substrate supply. These effects may largely offset the predicted impact of rising temperatures on the emission of isoprene in terrestrial ecosystems.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Fortunati</LastName><ForeName>Alessio</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Istituto di Biologia Agroambientale e Forestale, Consiglio Nazionale delle Ricerche, Monterotondo, Roma, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Barta</LastName><ForeName>Csengele</ForeName><Initials>C</Initials></Author><Author ValidYN="Y"><LastName>Brilli</LastName><ForeName>Federico</ForeName><Initials>F</Initials></Author><Author ValidYN="Y"><LastName>Centritto</LastName><ForeName>Mauro</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Zimmer</LastName><ForeName>Ina</ForeName><Initials>I</Initials></Author><Author ValidYN="Y"><LastName>Schnitzler</LastName><ForeName>Jörg-Peter</ForeName><Initials>JP</Initials></Author><Author ValidYN="Y"><LastName>Loreto</LastName><ForeName>Francesco</ForeName><Initials>F</Initials></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>2008</Year><Month>04</Month><Day>25</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Plant J</MedlineTA><NlmUniqueID>9207397</NlmUniqueID><ISSNLinking>0960-7412</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D002070">Butadienes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D045782">Hemiterpenes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010420">Pentanes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0A62964IBU</RegistryNumber><NameOfSubstance UI="C005059">isoprene</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 2.5.-</RegistryNumber><NameOfSubstance UI="D019883">Alkyl and Aryl Transferases</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 2.5.1.-</RegistryNumber><NameOfSubstance UI="C093854">isoprene synthase</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D019883" MajorTopicYN="N">Alkyl and Aryl Transferases</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002070" MajorTopicYN="N">Butadienes</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D055864" MajorTopicYN="Y">Droughts</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018506" MajorTopicYN="N">Gene Expression Regulation, Plant</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D045782" MajorTopicYN="N">Hemiterpenes</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D007700" MajorTopicYN="N">Kinetics</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010420" MajorTopicYN="N">Pentanes</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010788" MajorTopicYN="N">Photosynthesis</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013696" MajorTopicYN="N">Temperature</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013997" MajorTopicYN="N">Time Factors</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2008</Year><Month>5</Month><Day>1</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2008</Year><Month>12</Month><Day>17</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2008</Year><Month>5</Month><Day>1</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">18445130</ArticleId><ArticleId IdType="pii">TPJ3538</ArticleId><ArticleId IdType="doi">10.1111/j.1365-313X.2008.03538.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Italie</li></country><region><li>Latium</li></region><settlement><li>Rome</li></settlement></list><tree><noCountry><name sortKey="Barta, Csengele" sort="Barta, Csengele" uniqKey="Barta C" first="Csengele" last="Barta">Csengele Barta</name><name sortKey="Brilli, Federico" sort="Brilli, Federico" uniqKey="Brilli F" first="Federico" last="Brilli">Federico Brilli</name><name sortKey="Centritto, Mauro" sort="Centritto, Mauro" uniqKey="Centritto M" first="Mauro" last="Centritto">Mauro Centritto</name><name sortKey="Loreto, Francesco" sort="Loreto, Francesco" uniqKey="Loreto F" first="Francesco" last="Loreto">Francesco Loreto</name><name sortKey="Schnitzler, Jorg Peter" sort="Schnitzler, Jorg Peter" uniqKey="Schnitzler J" first="Jörg-Peter" last="Schnitzler">Jörg-Peter Schnitzler</name><name sortKey="Zimmer, Ina" sort="Zimmer, Ina" uniqKey="Zimmer I" first="Ina" last="Zimmer">Ina Zimmer</name></noCountry><country name="Italie"><region name="Latium"><name sortKey="Fortunati, Alessio" sort="Fortunati, Alessio" uniqKey="Fortunati A" first="Alessio" last="Fortunati">Alessio Fortunati</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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