Does freezing and dynamic flexing of frozen branches impact the cavitation resistance of Malus domestica and the Populus clone Walker?
Identifieur interne : 002729 ( Main/Exploration ); précédent : 002728; suivant : 002730Does freezing and dynamic flexing of frozen branches impact the cavitation resistance of Malus domestica and the Populus clone Walker?
Auteurs : Karen K. Christensen-Dalsgaard [Canada] ; Melvin T. TyreeSource :
- Oecologia [ 1432-1939 ] ; 2013.
Descripteurs français
- KwdFr :
- Congélation (effets indésirables), Maladies des plantes (immunologie), Malus (physiologie), Phénomènes biomécaniques (MeSH), Populus (physiologie), Résistance à la maladie (physiologie), Spécificité d'espèce (MeSH), Statistique non paramétrique (MeSH), Tiges de plante (physiologie), Xylème (anatomie et histologie), Xylème (physiologie).
- MESH :
- anatomie et histologie : Xylème.
- effets indésirables : Congélation.
- immunologie : Maladies des plantes.
- physiologie : Malus, Populus, Résistance à la maladie, Tiges de plante, Xylème.
- Phénomènes biomécaniques, Spécificité d'espèce, Statistique non paramétrique.
English descriptors
- KwdEn :
- Biomechanical Phenomena (MeSH), Disease Resistance (physiology), Freezing (adverse effects), Malus (physiology), Plant Diseases (immunology), Plant Stems (physiology), Populus (physiology), Species Specificity (MeSH), Statistics, Nonparametric (MeSH), Xylem (anatomy & histology), Xylem (physiology).
- MESH :
- adverse effects : Freezing.
- anatomy & histology : Xylem.
- immunology : Plant Diseases.
- physiology : Disease Resistance, Malus, Plant Stems, Populus, Xylem.
- Biomechanical Phenomena, Species Specificity, Statistics, Nonparametric.
Abstract
Frost damage to the xylem conduits of trees is a phenomenon of eco-physiological importance. It is often documented in terms of the percentage loss of conductivity (PLC), an indicator of air filling of the conduits. However, trees that refill their conduits in spring could be impacted more by damage to the conduits that reduce cavitation resistance, making them more susceptible to future drought events. We investigated whether ice formation, dynamic flexing of frozen branches or freeze-thaw events could reduce the cavitation resistance (cause "frost fatigue") in first-year shoots of apple (Malus domestica) and clonal hybrid cottonwood (Walker). Frost fatigue was measured in terms of P50 (the negative xylem pressure required to cause a 50 % loss of conductivity). All treatment groups showed significant frost fatigue, with the exception of the pre-flushed, constantly frozen poplar branches. The P50 following freeze treatments was approximately 50 % of the pre-freeze values. The effect tended to be greater in freeze-thawed branches. Dynamic bending of the branches had no effect on either PLC or P50. In three out of four cases, there was a significant correlation between P50 and PLC. Frost fatigue occurred in both apple and poplar, two unrelated species with different drought and frost tolerances, suggesting that it may be a widespread phenomenon that could impact the ecophysiology of temperate forests.
DOI: 10.1007/s00442-013-2656-1
PubMed: 23624704
Affiliations:
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Le document en format XML
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Tyree</name></author></analytic><series><title level="j">Oecologia</title><idno type="eISSN">1432-1939</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biomechanical Phenomena (MeSH)</term><term>Disease Resistance (physiology)</term><term>Freezing (adverse effects)</term><term>Malus (physiology)</term><term>Plant Diseases (immunology)</term><term>Plant Stems (physiology)</term><term>Populus (physiology)</term><term>Species Specificity (MeSH)</term><term>Statistics, Nonparametric (MeSH)</term><term>Xylem (anatomy & histology)</term><term>Xylem (physiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Congélation (effets indésirables)</term><term>Maladies des plantes (immunologie)</term><term>Malus (physiologie)</term><term>Phénomènes biomécaniques (MeSH)</term><term>Populus (physiologie)</term><term>Résistance à la maladie (physiologie)</term><term>Spécificité d'espèce (MeSH)</term><term>Statistique non paramétrique (MeSH)</term><term>Tiges de plante (physiologie)</term><term>Xylème (anatomie et histologie)</term><term>Xylème (physiologie)</term></keywords><keywords scheme="MESH" qualifier="adverse effects" xml:lang="en"><term>Freezing</term></keywords><keywords scheme="MESH" qualifier="anatomie et histologie" xml:lang="fr"><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Xylem</term></keywords><keywords scheme="MESH" qualifier="effets indésirables" xml:lang="fr"><term>Congélation</term></keywords><keywords scheme="MESH" qualifier="immunologie" xml:lang="fr"><term>Maladies des plantes</term></keywords><keywords scheme="MESH" qualifier="immunology" xml:lang="en"><term>Plant Diseases</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Malus</term><term>Populus</term><term>Résistance à la maladie</term><term>Tiges de plante</term><term>Xylème</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Disease Resistance</term><term>Malus</term><term>Plant Stems</term><term>Populus</term><term>Xylem</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomechanical Phenomena</term><term>Species Specificity</term><term>Statistics, Nonparametric</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Phénomènes biomécaniques</term><term>Spécificité d'espèce</term><term>Statistique non paramétrique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Frost damage to the xylem conduits of trees is a phenomenon of eco-physiological importance. It is often documented in terms of the percentage loss of conductivity (PLC), an indicator of air filling of the conduits. However, trees that refill their conduits in spring could be impacted more by damage to the conduits that reduce cavitation resistance, making them more susceptible to future drought events. We investigated whether ice formation, dynamic flexing of frozen branches or freeze-thaw events could reduce the cavitation resistance (cause "frost fatigue") in first-year shoots of apple (Malus domestica) and clonal hybrid cottonwood (Walker). Frost fatigue was measured in terms of P50 (the negative xylem pressure required to cause a 50 % loss of conductivity). All treatment groups showed significant frost fatigue, with the exception of the pre-flushed, constantly frozen poplar branches. The P50 following freeze treatments was approximately 50 % of the pre-freeze values. The effect tended to be greater in freeze-thawed branches. Dynamic bending of the branches had no effect on either PLC or P50. In three out of four cases, there was a significant correlation between P50 and PLC. Frost fatigue occurred in both apple and poplar, two unrelated species with different drought and frost tolerances, suggesting that it may be a widespread phenomenon that could impact the ecophysiology of temperate forests.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23624704</PMID><DateCompleted><Year>2014</Year><Month>05</Month><Day>19</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-1939</ISSN><JournalIssue CitedMedium="Internet"><Volume>173</Volume><Issue>3</Issue><PubDate><Year>2013</Year><Month>Nov</Month></PubDate></JournalIssue><Title>Oecologia</Title><ISOAbbreviation>Oecologia</ISOAbbreviation></Journal><ArticleTitle>Does freezing and dynamic flexing of frozen branches impact the cavitation resistance of Malus domestica and the Populus clone Walker?</ArticleTitle><Pagination><MedlinePgn>665-74</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00442-013-2656-1</ELocationID><Abstract><AbstractText>Frost damage to the xylem conduits of trees is a phenomenon of eco-physiological importance. It is often documented in terms of the percentage loss of conductivity (PLC), an indicator of air filling of the conduits. However, trees that refill their conduits in spring could be impacted more by damage to the conduits that reduce cavitation resistance, making them more susceptible to future drought events. We investigated whether ice formation, dynamic flexing of frozen branches or freeze-thaw events could reduce the cavitation resistance (cause "frost fatigue") in first-year shoots of apple (Malus domestica) and clonal hybrid cottonwood (Walker). Frost fatigue was measured in terms of P50 (the negative xylem pressure required to cause a 50 % loss of conductivity). All treatment groups showed significant frost fatigue, with the exception of the pre-flushed, constantly frozen poplar branches. The P50 following freeze treatments was approximately 50 % of the pre-freeze values. The effect tended to be greater in freeze-thawed branches. Dynamic bending of the branches had no effect on either PLC or P50. In three out of four cases, there was a significant correlation between P50 and PLC. Frost fatigue occurred in both apple and poplar, two unrelated species with different drought and frost tolerances, suggesting that it may be a widespread phenomenon that could impact the ecophysiology of temperate forests.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Christensen-Dalsgaard</LastName><ForeName>Karen K</ForeName><Initials>KK</Initials><AffiliationInfo><Affiliation>Department of Renewable Resources, 4-44 ESB, University of Alberta, Edmonton, AB, T6G 2E3, Canada, kkcdalsgaard@yahoo.ca.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Tyree</LastName><ForeName>Melvin T</ForeName><Initials>MT</Initials></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>2013</Year><Month>04</Month><Day>28</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Oecologia</MedlineTA><NlmUniqueID>0150372</NlmUniqueID><ISSNLinking>0029-8549</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001696" MajorTopicYN="N">Biomechanical Phenomena</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D060467" MajorTopicYN="N">Disease Resistance</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005615" MajorTopicYN="N">Freezing</DescriptorName><QualifierName UI="Q000009" MajorTopicYN="Y">adverse effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D027845" MajorTopicYN="N">Malus</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010935" MajorTopicYN="N">Plant Diseases</DescriptorName><QualifierName UI="Q000276" MajorTopicYN="Y">immunology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013045" MajorTopicYN="N">Species Specificity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018709" MajorTopicYN="N">Statistics, Nonparametric</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D052584" MajorTopicYN="N">Xylem</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2012</Year><Month>07</Month><Day>27</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2013</Year><Month>04</Month><Day>05</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2013</Year><Month>4</Month><Day>30</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2013</Year><Month>4</Month><Day>30</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2014</Year><Month>5</Month><Day>20</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">23624704</ArticleId><ArticleId IdType="doi">10.1007/s00442-013-2656-1</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>Planta. 2003 Jul;217(3):436-41</Citation><ArticleIdList><ArticleId 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Tyree</name></noCountry><country name="Canada"><noRegion><name sortKey="Christensen Dalsgaard, Karen K" sort="Christensen Dalsgaard, Karen K" uniqKey="Christensen Dalsgaard K" first="Karen K" last="Christensen-Dalsgaard">Karen K. Christensen-Dalsgaard</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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