Investigations concerning cavitation and frost fatigue in clonal 84K poplar using high-resolution cavitron measurements.
Identifieur interne : 001C80 ( Main/Exploration ); précédent : 001C79; suivant : 001C81Investigations concerning cavitation and frost fatigue in clonal 84K poplar using high-resolution cavitron measurements.
Auteurs : Feng Feng [République populaire de Chine] ; Fei Ding [République populaire de Chine] ; Melvin T. Tyree [Éthiopie]Source :
- Plant physiology [ 1532-2548 ] ; 2015.
Descripteurs français
- KwdFr :
- Air (MeSH), Chlorure de calcium (pharmacologie), Chlorure de potassium (pharmacologie), Congélation (MeSH), Eau (MeSH), Populus (effets des médicaments et des substances chimiques), Populus (physiologie), Température (MeSH), Tiges de plante (effets des médicaments et des substances chimiques), Tiges de plante (physiologie).
- MESH :
- effets des médicaments et des substances chimiques : Populus, Tiges de plante.
- pharmacologie : Chlorure de calcium, Chlorure de potassium.
- physiologie : Populus, Tiges de plante.
- Air, Congélation, Eau, Température.
English descriptors
- KwdEn :
- MESH :
- chemical , pharmacology : Calcium Chloride, Potassium Chloride.
- drug effects : Plant Stems, Populus.
- physiology : Plant Stems, Populus.
- Air, Freezing, Temperature, Water.
Abstract
Both drought and freezing-thawing of stems induce a loss of hydraulic conductivity (percentage loss of conductivity [PLC]) in woody plants. Drought-induced PLC is often accompanied by physical damage to pit membranes, causing a shift in vulnerability curves (cavitation fatigue). Hence, if cavitated stems are flushed to remove embolisms, the next vulnerability curve is different (shifted to lower tensions). The 84K poplar (Populus alba × Populus glandulosa) clone has small vessels that should be immune from frost-induced PLC, but results demonstrated that freezing-thawing in combination with tension synergistically increased PLC. Frost fatigue has already been defined, which is similar to cavitation fatigue but induced by freezing. Frost fatigue caused a transition from a single to a dual Weibull curve, but drought-fatigued stems had single Weibull curves shifted to lower tensions. Studying the combined impact of tension plus freezing on fatigue provided evidence that the mechanism of frost fatigue may be the extra water tension induced by freezing or thawing while spinning stems in a centrifuge rather than direct ice damage. A hypothesis is advanced that tension is enhanced as ice crystals grow or melt during the freeze or thaw event, respectively, causing a nearly identical fatigue event to that induced by drought.
DOI: 10.1104/pp.114.256271
PubMed: 25786827
PubMed Central: PMC4424019
Affiliations:
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Tyree</name><affiliation wicri:level="1"><nlm:affiliation>College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China mel.tyree@cantab.net.</nlm:affiliation><country wicri:rule="url">Éthiopie</country><wicri:regionArea>College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100</wicri:regionArea><wicri:noRegion>Shaanxi 712100</wicri:noRegion></affiliation></author></analytic><series><title level="j">Plant physiology</title><idno type="eISSN">1532-2548</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Air (MeSH)</term><term>Calcium Chloride (pharmacology)</term><term>Freezing (MeSH)</term><term>Plant Stems (drug effects)</term><term>Plant Stems (physiology)</term><term>Populus (drug effects)</term><term>Populus (physiology)</term><term>Potassium Chloride (pharmacology)</term><term>Temperature (MeSH)</term><term>Water (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Air (MeSH)</term><term>Chlorure de calcium (pharmacologie)</term><term>Chlorure de potassium (pharmacologie)</term><term>Congélation (MeSH)</term><term>Eau (MeSH)</term><term>Populus (effets des médicaments et des substances chimiques)</term><term>Populus (physiologie)</term><term>Température (MeSH)</term><term>Tiges de plante (effets des médicaments et des substances chimiques)</term><term>Tiges de plante (physiologie)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Calcium Chloride</term><term>Potassium Chloride</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Plant Stems</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Populus</term><term>Tiges de plante</term></keywords><keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Chlorure de calcium</term><term>Chlorure de potassium</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Populus</term><term>Tiges de plante</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Plant Stems</term><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Air</term><term>Freezing</term><term>Temperature</term><term>Water</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Air</term><term>Congélation</term><term>Eau</term><term>Température</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Both drought and freezing-thawing of stems induce a loss of hydraulic conductivity (percentage loss of conductivity [PLC]) in woody plants. Drought-induced PLC is often accompanied by physical damage to pit membranes, causing a shift in vulnerability curves (cavitation fatigue). Hence, if cavitated stems are flushed to remove embolisms, the next vulnerability curve is different (shifted to lower tensions). The 84K poplar (Populus alba × Populus glandulosa) clone has small vessels that should be immune from frost-induced PLC, but results demonstrated that freezing-thawing in combination with tension synergistically increased PLC. Frost fatigue has already been defined, which is similar to cavitation fatigue but induced by freezing. Frost fatigue caused a transition from a single to a dual Weibull curve, but drought-fatigued stems had single Weibull curves shifted to lower tensions. Studying the combined impact of tension plus freezing on fatigue provided evidence that the mechanism of frost fatigue may be the extra water tension induced by freezing or thawing while spinning stems in a centrifuge rather than direct ice damage. A hypothesis is advanced that tension is enhanced as ice crystals grow or melt during the freeze or thaw event, respectively, causing a nearly identical fatigue event to that induced by drought.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">25786827</PMID><DateCompleted><Year>2016</Year><Month>04</Month><Day>14</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1532-2548</ISSN><JournalIssue CitedMedium="Internet"><Volume>168</Volume><Issue>1</Issue><PubDate><Year>2015</Year><Month>May</Month></PubDate></JournalIssue><Title>Plant physiology</Title><ISOAbbreviation>Plant Physiol</ISOAbbreviation></Journal><ArticleTitle>Investigations concerning cavitation and frost fatigue in clonal 84K poplar using high-resolution cavitron measurements.</ArticleTitle><Pagination><MedlinePgn>144-55</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1104/pp.114.256271</ELocationID><Abstract><AbstractText>Both drought and freezing-thawing of stems induce a loss of hydraulic conductivity (percentage loss of conductivity [PLC]) in woody plants. Drought-induced PLC is often accompanied by physical damage to pit membranes, causing a shift in vulnerability curves (cavitation fatigue). Hence, if cavitated stems are flushed to remove embolisms, the next vulnerability curve is different (shifted to lower tensions). The 84K poplar (Populus alba × Populus glandulosa) clone has small vessels that should be immune from frost-induced PLC, but results demonstrated that freezing-thawing in combination with tension synergistically increased PLC. Frost fatigue has already been defined, which is similar to cavitation fatigue but induced by freezing. Frost fatigue caused a transition from a single to a dual Weibull curve, but drought-fatigued stems had single Weibull curves shifted to lower tensions. Studying the combined impact of tension plus freezing on fatigue provided evidence that the mechanism of frost fatigue may be the extra water tension induced by freezing or thawing while spinning stems in a centrifuge rather than direct ice damage. A hypothesis is advanced that tension is enhanced as ice crystals grow or melt during the freeze or thaw event, respectively, causing a nearly identical fatigue event to that induced by drought.</AbstractText><CopyrightInformation>© 2015 American Society of Plant Biologists. All Rights Reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Feng</LastName><ForeName>Feng</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ding</LastName><ForeName>Fei</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Tyree</LastName><ForeName>Melvin T</ForeName><Initials>MT</Initials><AffiliationInfo><Affiliation>College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China mel.tyree@cantab.net.</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>2015</Year><Month>03</Month><Day>18</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Physiol</MedlineTA><NlmUniqueID>0401224</NlmUniqueID><ISSNLinking>0032-0889</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>059QF0KO0R</RegistryNumber><NameOfSubstance UI="D014867">Water</NameOfSubstance></Chemical><Chemical><RegistryNumber>660YQ98I10</RegistryNumber><NameOfSubstance UI="D011189">Potassium Chloride</NameOfSubstance></Chemical><Chemical><RegistryNumber>M4I0D6VV5M</RegistryNumber><NameOfSubstance UI="D002122">Calcium Chloride</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000388" MajorTopicYN="N">Air</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002122" MajorTopicYN="N">Calcium 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Chine</li><li>Éthiopie</li></country></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Feng, Feng" sort="Feng, Feng" uniqKey="Feng F" first="Feng" last="Feng">Feng Feng</name></noRegion><name sortKey="Ding, Fei" sort="Ding, Fei" uniqKey="Ding F" first="Fei" last="Ding">Fei Ding</name></country><country name="Éthiopie"><noRegion><name sortKey="Tyree, Melvin T" sort="Tyree, Melvin T" uniqKey="Tyree M" first="Melvin T" last="Tyree">Melvin T. 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