High daytime temperature delays autumnal bud formation in Populus tremula under field conditions.
Identifieur interne : 001359 ( Main/Exploration ); précédent : 001358; suivant : 001360High daytime temperature delays autumnal bud formation in Populus tremula under field conditions.
Auteurs : Christian Bianchi Str Mme [Norvège] ; Riitta Julkunen-Tiitto [Finlande] ; Jorunn Elisabeth Olsen [Norvège] ; Line Nybakken [Norvège] ; Roberto TognettiSource :
- Tree physiology [ 1758-4469 ] ; 2017.
Descripteurs français
- KwdFr :
- MESH :
- croissance et développement : Populus.
- Altitude, Finlande, Photopériode, Saisons, Température élevée.
English descriptors
- KwdEn :
- MESH :
- growth & development : Populus.
- Altitude, Finland, Hot Temperature, Photoperiod, Seasons.
Abstract
The effects of warming on autumnal growth cessation and bud formation in trees remain ambiguous due to contrasting observations between a range of studies under controlled conditions and field experiments. High night temperature has been reported to advance growth cessation and bud formation in several tree species grown under controlled conditions. On the other hand, some recent field experiments have shown that autumn warming delays bud formation, although the temperature parameters that could account for this effect have not been identified. In addition, dioecious species have been shown to respond differently to environmental change, and differential warming effects on the sexes have received limited attention, even more so in relation to phenology. In a data set including three separate field experiments employing either experimental warming or an elevational gradient, we tested the effect of different temperature parameters on apical, vegetative bud formation and transitions between bud stages in female and male clones of Eurasian aspen (Populus tremula). Increased temperature was found to delay bud formation, and this process was best explained by maximum daily temperature. Males were significantly delayed compared with females in forming green closed buds, a process best explained by mean 24 h temperature. Bud maturation was best explained by mean daytime temperature, and buds matured significantly faster in males than in females, possibly explaining why females and males did not differ in terms of overall bud formation. In conclusion, our data show that delayed bud formation in Eurasian aspen during autumn can be attributed to the effect of high temperature, and this effect is in contrast to most of the evidence from studies of bud development in controlled environments.
DOI: 10.1093/treephys/tpw089
PubMed: 28173533
Affiliations:
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Tiitto, Riitta" sort="Julkunen Tiitto, Riitta" uniqKey="Julkunen Tiitto R" first="Riitta" last="Julkunen-Tiitto">Riitta Julkunen-Tiitto</name><affiliation wicri:level="1"><nlm:affiliation>Department of Biology, University of Eastern Finland, Joensuu, Finland.</nlm:affiliation><country xml:lang="fr">Finlande</country><wicri:regionArea>Department of Biology, University of Eastern Finland, Joensuu</wicri:regionArea><wicri:noRegion>Joensuu</wicri:noRegion></affiliation></author><author><name sortKey="Olsen, Jorunn Elisabeth" sort="Olsen, Jorunn Elisabeth" uniqKey="Olsen J" first="Jorunn Elisabeth" last="Olsen">Jorunn Elisabeth Olsen</name><affiliation wicri:level="1"><nlm:affiliation>Department of Plant Sciences, Norwegian University of Life Sciences, Norway.</nlm:affiliation><country xml:lang="fr">Norvège</country><wicri:regionArea>Department of Plant Sciences, Norwegian University of Life Sciences</wicri:regionArea><wicri:noRegion>Norwegian University of Life 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scheme="KwdEn" xml:lang="en"><term>Altitude (MeSH)</term><term>Finland (MeSH)</term><term>Hot Temperature (MeSH)</term><term>Photoperiod (MeSH)</term><term>Populus (growth & development)</term><term>Seasons (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Altitude (MeSH)</term><term>Finlande (MeSH)</term><term>Photopériode (MeSH)</term><term>Populus (croissance et développement)</term><term>Saisons (MeSH)</term><term>Température élevée (MeSH)</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Altitude</term><term>Finland</term><term>Hot Temperature</term><term>Photoperiod</term><term>Seasons</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Altitude</term><term>Finlande</term><term>Photopériode</term><term>Saisons</term><term>Température élevée</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The effects of warming on autumnal growth cessation and bud formation in trees remain ambiguous due to contrasting observations between a range of studies under controlled conditions and field experiments. High night temperature has been reported to advance growth cessation and bud formation in several tree species grown under controlled conditions. On the other hand, some recent field experiments have shown that autumn warming delays bud formation, although the temperature parameters that could account for this effect have not been identified. In addition, dioecious species have been shown to respond differently to environmental change, and differential warming effects on the sexes have received limited attention, even more so in relation to phenology. In a data set including three separate field experiments employing either experimental warming or an elevational gradient, we tested the effect of different temperature parameters on apical, vegetative bud formation and transitions between bud stages in female and male clones of Eurasian aspen (Populus tremula). Increased temperature was found to delay bud formation, and this process was best explained by maximum daily temperature. Males were significantly delayed compared with females in forming green closed buds, a process best explained by mean 24 h temperature. Bud maturation was best explained by mean daytime temperature, and buds matured significantly faster in males than in females, possibly explaining why females and males did not differ in terms of overall bud formation. In conclusion, our data show that delayed bud formation in Eurasian aspen during autumn can be attributed to the effect of high temperature, and this effect is in contrast to most of the evidence from studies of bud development in controlled environments.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">28173533</PMID><DateCompleted><Year>2018</Year><Month>05</Month><Day>14</Day></DateCompleted><DateRevised><Year>2018</Year><Month>06</Month><Day>19</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><Volume>37</Volume><Issue>1</Issue><PubDate><Year>2017</Year><Month>01</Month><Day>31</Day></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>High daytime temperature delays autumnal bud formation in Populus tremula under field conditions.</ArticleTitle><Pagination><MedlinePgn>71-81</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpw089</ELocationID><Abstract><AbstractText>The effects of warming on autumnal growth cessation and bud formation in trees remain ambiguous due to contrasting observations between a range of studies under controlled conditions and field experiments. High night temperature has been reported to advance growth cessation and bud formation in several tree species grown under controlled conditions. On the other hand, some recent field experiments have shown that autumn warming delays bud formation, although the temperature parameters that could account for this effect have not been identified. In addition, dioecious species have been shown to respond differently to environmental change, and differential warming effects on the sexes have received limited attention, even more so in relation to phenology. In a data set including three separate field experiments employing either experimental warming or an elevational gradient, we tested the effect of different temperature parameters on apical, vegetative bud formation and transitions between bud stages in female and male clones of Eurasian aspen (Populus tremula). Increased temperature was found to delay bud formation, and this process was best explained by maximum daily temperature. Males were significantly delayed compared with females in forming green closed buds, a process best explained by mean 24 h temperature. Bud maturation was best explained by mean daytime temperature, and buds matured significantly faster in males than in females, possibly explaining why females and males did not differ in terms of overall bud formation. In conclusion, our data show that delayed bud formation in Eurasian aspen during autumn can be attributed to the effect of high temperature, and this effect is in contrast to most of the evidence from studies of bud development in controlled environments.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Strømme</LastName><ForeName>Christian Bianchi</ForeName><Initials>CB</Initials><AffiliationInfo><Affiliation>Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, Norway.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Julkunen-Tiitto</LastName><ForeName>Riitta</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>Department of Biology, University of Eastern Finland, Joensuu, Finland.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Olsen</LastName><ForeName>Jorunn Elisabeth</ForeName><Initials>JE</Initials><AffiliationInfo><Affiliation>Department of Plant Sciences, Norwegian University of Life Sciences, Norway.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Nybakken</LastName><ForeName>Line</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, Norway.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Tognetti</LastName><ForeName>Roberto</ForeName><Initials>R</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000531" MajorTopicYN="Y">Altitude</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005387" MajorTopicYN="N">Finland</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006358" MajorTopicYN="Y">Hot Temperature</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017440" MajorTopicYN="N">Photoperiod</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012621" MajorTopicYN="N">Seasons</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">climate change</Keyword><Keyword MajorTopicYN="Y">dioecious</Keyword><Keyword MajorTopicYN="Y">environmental signals</Keyword><Keyword MajorTopicYN="Y">field experiments</Keyword><Keyword MajorTopicYN="Y">phenology</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2016</Year><Month>03</Month><Day>18</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2016</Year><Month>07</Month><Day>28</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2016</Year><Month>10</Month><Day>03</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2017</Year><Month>2</Month><Day>8</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2017</Year><Month>2</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2018</Year><Month>5</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28173533</ArticleId><ArticleId IdType="pii">2354595</ArticleId><ArticleId IdType="doi">10.1093/treephys/tpw089</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Finlande</li><li>Norvège</li></country></list><tree><noCountry><name sortKey="Tognetti, Roberto" sort="Tognetti, Roberto" uniqKey="Tognetti R" first="Roberto" last="Tognetti">Roberto Tognetti</name></noCountry><country name="Norvège"><noRegion><name sortKey="Str Mme, Christian Bianchi" sort="Str Mme, Christian Bianchi" uniqKey="Str Mme C" first="Christian Bianchi" last="Str Mme">Christian Bianchi Str Mme</name></noRegion><name sortKey="Nybakken, Line" sort="Nybakken, Line" uniqKey="Nybakken L" first="Line" last="Nybakken">Line Nybakken</name><name sortKey="Olsen, Jorunn Elisabeth" sort="Olsen, Jorunn Elisabeth" uniqKey="Olsen J" first="Jorunn Elisabeth" last="Olsen">Jorunn Elisabeth Olsen</name></country><country name="Finlande"><noRegion><name sortKey="Julkunen Tiitto, Riitta" sort="Julkunen Tiitto, Riitta" uniqKey="Julkunen Tiitto R" first="Riitta" last="Julkunen-Tiitto">Riitta Julkunen-Tiitto</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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