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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Lethal heat stress-dependent volatile emissions from tobacco leaves: what happens beyond the thermal edge?</title><author><name sortKey="Turan, Satpal" sort="Turan, Satpal" uniqKey="Turan S" first="Satpal" last="Turan">Satpal Turan</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Kask, Kaia" sort="Kask, Kaia" uniqKey="Kask K" first="Kaia" last="Kask">Kaia Kask</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Kanagendran, Arooran" sort="Kanagendran, Arooran" uniqKey="Kanagendran A" first="Arooran" last="Kanagendran">Arooran Kanagendran</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Li, Shuai" sort="Li, Shuai" uniqKey="Li S" first="Shuai" last="Li">Shuai Li</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Anni, Rinaldo" sort="Anni, Rinaldo" uniqKey="Anni R" first="Rinaldo" last="Anni">Rinaldo Anni</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Talts, Eero" sort="Talts, Eero" uniqKey="Talts E" first="Eero" last="Talts">Eero Talts</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Rasulov, Bahtijor" sort="Rasulov, Bahtijor" uniqKey="Rasulov B" first="Bahtijor" last="Rasulov">Bahtijor Rasulov</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="K Nnaste, Astrid" sort="K Nnaste, Astrid" uniqKey="K Nnaste A" first="Astrid" last="K Nnaste">Astrid K Nnaste</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Niinemets, Ulo" sort="Niinemets, Ulo" uniqKey="Niinemets U" first="Ülo" last="Niinemets">Ülo Niinemets</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation><affiliation><nlm:aff id="A2">Estonian Academy of Sciences, Kohtu 6, 10130 Tallinn, Estonia</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">31289830</idno><idno type="pmc">6850906</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6850906</idno><idno type="RBID">PMC:6850906</idno><idno type="doi">10.1093/jxb/erz255</idno><date when="2019">2019</date><idno type="wicri:Area/Pmc/Corpus">000564</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000564</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Lethal heat stress-dependent volatile emissions from tobacco leaves: what happens beyond the thermal edge?</title><author><name sortKey="Turan, Satpal" sort="Turan, Satpal" uniqKey="Turan S" first="Satpal" last="Turan">Satpal Turan</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Kask, Kaia" sort="Kask, Kaia" uniqKey="Kask K" first="Kaia" last="Kask">Kaia Kask</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Kanagendran, Arooran" sort="Kanagendran, Arooran" uniqKey="Kanagendran A" first="Arooran" last="Kanagendran">Arooran Kanagendran</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Li, Shuai" sort="Li, Shuai" uniqKey="Li S" first="Shuai" last="Li">Shuai Li</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Anni, Rinaldo" sort="Anni, Rinaldo" uniqKey="Anni R" first="Rinaldo" last="Anni">Rinaldo Anni</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Talts, Eero" sort="Talts, Eero" uniqKey="Talts E" first="Eero" last="Talts">Eero Talts</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Rasulov, Bahtijor" sort="Rasulov, Bahtijor" uniqKey="Rasulov B" first="Bahtijor" last="Rasulov">Bahtijor Rasulov</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="K Nnaste, Astrid" sort="K Nnaste, Astrid" uniqKey="K Nnaste A" first="Astrid" last="K Nnaste">Astrid K Nnaste</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation></author><author><name sortKey="Niinemets, Ulo" sort="Niinemets, Ulo" uniqKey="Niinemets U" first="Ülo" last="Niinemets">Ülo Niinemets</name><affiliation><nlm:aff id="A1">Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</nlm:aff></affiliation><affiliation><nlm:aff id="A2">Estonian Academy of Sciences, Kohtu 6, 10130 Tallinn, Estonia</nlm:aff></affiliation></author></analytic><series><title level="j">Journal of experimental botany</title><idno type="ISSN">0022-0957</idno><idno type="eISSN">1460-2431</idno><imprint><date when="2019">2019</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p id="P1">Natural vegetation is predicted to suffer from extreme heat events as a result of global warming. In this study, we focused on the immediate response to heat stress. Photosynthesis and volatile emissions were measured in the leaves of tobacco (<italic>Nicotiana tabacum</italic> cv. Wisconsin 38) after exposure to heat shock treatments between 46-55 °C. Exposure to 46 °C decreased photosynthetic carbon assimilation rates (<italic>A</italic>) by more than three-fold. Complete inhibition of <italic>A</italic> was observed at 49 °C, together with a simultaneous decrease in the maximum quantum efficiency of photosystem II, measured as the <italic>F</italic><sub>v</sub>/<italic>F</italic><sub>m</sub> ratio. A large increase in volatile emissions was observed at 52 °C. Heat stress resulted in only minor effects on the emission of monoterpenes, but volatiles associated with membrane damage such as propanal and (<italic>E</italic>)-2-hexenal, (<italic>Z</italic>)-3-hexenol were greatly increased. Heat-induced changes in the levels of methanol, 2–ethylfuran that are indicative of modification of cell walls. In addition, the oxidation of metabolites in the volatile profiles was strongly enhanced, suggesting the acceleration of oxidative processes at high temperatures that are beyond the thermal tolerance limit.</p></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">9882906</journal-id><journal-id journal-id-type="nlm-ta">J Exp Bot</journal-id><journal-id journal-id-type="iso-abbrev">J. Exp. Bot.</journal-id><journal-title-group><journal-title>Journal of experimental botany</journal-title></journal-title-group><issn pub-type="ppub">0022-0957</issn><issn pub-type="epub">1460-2431</issn></journal-meta><article-meta><article-id pub-id-type="pmid">31289830</article-id><article-id pub-id-type="pmc">6850906</article-id><article-id pub-id-type="doi">10.1093/jxb/erz255</article-id><article-id pub-id-type="manuscript">EMS84833</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Lethal heat stress-dependent volatile emissions from tobacco leaves: what happens beyond the thermal edge?</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Turan</surname><given-names>Satpal</given-names></name><pmc-comment>satpalturan@gmail.com </pmc-comment>
<xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Kask</surname><given-names>Kaia</given-names></name><pmc-comment>kaia.kask@emu.ee </pmc-comment>
<xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Kanagendran</surname><given-names>Arooran</given-names></name><pmc-comment>kanagendran.arooran@unine.ch </pmc-comment>
<xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Li</surname><given-names>Shuai</given-names></name><pmc-comment>shuaili@illinois.edu </pmc-comment>
<xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Anni</surname><given-names>Rinaldo</given-names></name><pmc-comment>elektrofiil@gmail.com </pmc-comment>
<xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Talts</surname><given-names>Eero</given-names></name><pmc-comment>eero.talts@emu.ee </pmc-comment>
<xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Rasulov</surname><given-names>Bahtijor</given-names></name><pmc-comment>bahtijor.rasulov@emu.ee </pmc-comment>
<xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Kännaste</surname><given-names>Astrid</given-names></name><pmc-comment>astrid.kannaste@emu.ee </pmc-comment>
<xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Niinemets</surname><given-names>Ülo</given-names></name><xref ref-type="aff" rid="A1">1</xref><xref ref-type="aff" rid="A2">2</xref><xref ref-type="corresp" rid="CR1">*</xref></contrib></contrib-group><aff id="A1"><label>1</label>Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia</aff><aff id="A2"><label>2</label>Estonian Academy of Sciences, Kohtu 6, 10130 Tallinn, Estonia</aff><author-notes><corresp id="CR1"><label>*</label>Corresponding author: Ülo Niinemets, <email>ylo.niinemets@emu.ee</email>, Fax: +372 7313738</corresp><fn fn-type="COI-statement" id="FN2"><p id="P41"><bold>Conflicts of interest</bold></p><p id="P42">The authors declare that they have no conflicts of interest.</p></fn></author-notes><pub-date pub-type="ppub"><day>24</day><month>9</month><year>2019</year></pub-date><pub-date pub-type="nihms-submitted"><day>06</day><month>11</month><year>2019</year></pub-date><pub-date pub-type="pmc-release"><day>12</day><month>11</month><year>2019</year></pub-date><volume>70</volume><issue>18</issue><fpage>5017</fpage><lpage>5030</lpage><pmc-comment>elocation-id from pubmed: 10.1093/jxb/erz255</pmc-comment>
<abstract><p id="P1">Natural vegetation is predicted to suffer from extreme heat events as a result of global warming. In this study, we focused on the immediate response to heat stress. Photosynthesis and volatile emissions were measured in the leaves of tobacco (<italic>Nicotiana tabacum</italic> cv. Wisconsin 38) after exposure to heat shock treatments between 46-55 °C. Exposure to 46 °C decreased photosynthetic carbon assimilation rates (<italic>A</italic>) by more than three-fold. Complete inhibition of <italic>A</italic> was observed at 49 °C, together with a simultaneous decrease in the maximum quantum efficiency of photosystem II, measured as the <italic>F</italic><sub>v</sub>/<italic>F</italic><sub>m</sub> ratio. A large increase in volatile emissions was observed at 52 °C. Heat stress resulted in only minor effects on the emission of monoterpenes, but volatiles associated with membrane damage such as propanal and (<italic>E</italic>)-2-hexenal, (<italic>Z</italic>)-3-hexenol were greatly increased. Heat-induced changes in the levels of methanol, 2–ethylfuran that are indicative of modification of cell walls. In addition, the oxidation of metabolites in the volatile profiles was strongly enhanced, suggesting the acceleration of oxidative processes at high temperatures that are beyond the thermal tolerance limit.</p></abstract><kwd-group><kwd>Chlorophyll fluorescence</kwd><kwd>heat stress</kwd><kwd>isoprene</kwd><kwd>methacrolein</kwd><kwd>methanol</kwd><kwd>monoterpenes</kwd><kwd>lipoxygenase pathway</kwd><kwd>photosynthesis</kwd><kwd>stress severity</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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