Differences in carbon and nitrogen metabolism between male and female Populus cathayana in response to deficient nitrogen.
Identifieur interne : 000481 ( Main/Exploration ); précédent : 000480; suivant : 000482Differences in carbon and nitrogen metabolism between male and female Populus cathayana in response to deficient nitrogen.
Auteurs : Xiaoyi Wu [République populaire de Chine] ; Jiantong Liu [République populaire de Chine] ; Qiqi Meng [République populaire de Chine] ; Shiyan Fang [République populaire de Chine] ; Jieyu Kang [République populaire de Chine] ; Qingxue Guo [République populaire de Chine]Source :
- Tree physiology [ 1758-4469 ] ; 2020.
Abstract
Sexual dimorphism occurs regarding carbon and nitrogen metabolic processes in response to nitrogen supply. Differences in fixation and remobilization of carbon and allocation and assimilation of nitrogen between sexes may differ under severe defoliation. The dioecious species Populus cathayana was studied after two defoliation treatments with two N levels. Males had higher capacity of carbon fixation because of higher gas exchange and fluorescence traits of leaves after severe long-term defoliation under deficient N. Males had higher leaf abscisic acid, stomatal conductance, and leaf sucrose phosphate synthase activity increasing transport of sucrose to sinks. Males had a higher carbon sink than females, because under N-deficient conditions, males accumulated more than 131.10% and 90.65% root starch than males in the control, whereas females accumulated more than 40.55% and 52.81%, respectively, than females in the control group. Males allocated less non-protein N (NNon-p) to leaves, having higher nitrogen use efficiency (PNUE), higher glutamate dehydrogenase (GDH), and higher leaf GDH expression, even after long-term severe defoliation under deficient N. Females had higher leaf jasmonic acid concentration and NNon-p. The present study suggested that females allocated more carbon and nitrogen to defense chemicals than males after long-term severe defoliation under deficient N.
DOI: 10.1093/treephys/tpaa108
PubMed: 32822497
Affiliations:
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311121</wicri:regionArea><placeName><settlement type="city">Hangzhou</settlement><region type="province">Zhejiang</region></placeName></affiliation></author><author><name sortKey="Liu, Jiantong" sort="Liu, Jiantong" uniqKey="Liu J" first="Jiantong" last="Liu">Jiantong Liu</name><affiliation wicri:level="1"><nlm:affiliation>College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121</wicri:regionArea><placeName><settlement type="city">Hangzhou</settlement><region type="province">Zhejiang</region></placeName></affiliation></author><author><name sortKey="Meng, Qiqi" sort="Meng, Qiqi" uniqKey="Meng Q" first="Qiqi" last="Meng">Qiqi Meng</name><affiliation wicri:level="1"><nlm:affiliation>College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 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Differences in fixation and remobilization of carbon and allocation and assimilation of nitrogen between sexes may differ under severe defoliation. The dioecious species Populus cathayana was studied after two defoliation treatments with two N levels. Males had higher capacity of carbon fixation because of higher gas exchange and fluorescence traits of leaves after severe long-term defoliation under deficient N. Males had higher leaf abscisic acid, stomatal conductance, and leaf sucrose phosphate synthase activity increasing transport of sucrose to sinks. Males had a higher carbon sink than females, because under N-deficient conditions, males accumulated more than 131.10% and 90.65% root starch than males in the control, whereas females accumulated more than 40.55% and 52.81%, respectively, than females in the control group. Males allocated less non-protein N (NNon-p) to leaves, having higher nitrogen use efficiency (PNUE), higher glutamate dehydrogenase (GDH), and higher leaf GDH expression, even after long-term severe defoliation under deficient N. Females had higher leaf jasmonic acid concentration and NNon-p. The present study suggested that females allocated more carbon and nitrogen to defense chemicals than males after long-term severe defoliation under deficient N.</div></front></TEI><pubmed><MedlineCitation Status="Publisher" Owner="NLM"><PMID Version="1">32822497</PMID><DateRevised><Year>2020</Year><Month>08</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><PubDate><Year>2020</Year><Month>Aug</Month><Day>21</Day></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Differences in carbon and nitrogen metabolism between male and female Populus cathayana in response to deficient nitrogen.</ArticleTitle><ELocationID EIdType="pii" ValidYN="Y">tpaa108</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpaa108</ELocationID><Abstract><AbstractText>Sexual dimorphism occurs regarding carbon and nitrogen metabolic processes in response to nitrogen supply. Differences in fixation and remobilization of carbon and allocation and assimilation of nitrogen between sexes may differ under severe defoliation. The dioecious species Populus cathayana was studied after two defoliation treatments with two N levels. Males had higher capacity of carbon fixation because of higher gas exchange and fluorescence traits of leaves after severe long-term defoliation under deficient N. Males had higher leaf abscisic acid, stomatal conductance, and leaf sucrose phosphate synthase activity increasing transport of sucrose to sinks. Males had a higher carbon sink than females, because under N-deficient conditions, males accumulated more than 131.10% and 90.65% root starch than males in the control, whereas females accumulated more than 40.55% and 52.81%, respectively, than females in the control group. Males allocated less non-protein N (NNon-p) to leaves, having higher nitrogen use efficiency (PNUE), higher glutamate dehydrogenase (GDH), and higher leaf GDH expression, even after long-term severe defoliation under deficient N. Females had higher leaf jasmonic acid concentration and NNon-p. The present study suggested that females allocated more carbon and nitrogen to defense chemicals than males after long-term severe defoliation under deficient N.</AbstractText><CopyrightInformation>© The Author(s) 2020. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permission@oup.com.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Wu</LastName><ForeName>Xiaoyi</ForeName><Initials>X</Initials><AffiliationInfo><Affiliation>College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Liu</LastName><ForeName>Jiantong</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Meng</LastName><ForeName>Qiqi</ForeName><Initials>Q</Initials><AffiliationInfo><Affiliation>College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fang</LastName><ForeName>Shiyan</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kang</LastName><ForeName>Jieyu</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Guo</LastName><ForeName>Qingxue</ForeName><Initials>Q</Initials><AffiliationInfo><Affiliation>College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2020</Year><Month>08</Month><Day>21</Day></ArticleDate></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">defense chemicals</Keyword><Keyword MajorTopicYN="N">non-structural carbohydrates</Keyword><Keyword MajorTopicYN="N">sexual dimorphism</Keyword><Keyword MajorTopicYN="N">storage and allocation</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2020</Year><Month>04</Month><Day>13</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2020</Year><Month>07</Month><Day>03</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2020</Year><Month>08</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>8</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2020</Year><Month>8</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>8</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>aheadofprint</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32822497</ArticleId><ArticleId IdType="pii">5895366</ArticleId><ArticleId IdType="doi">10.1093/treephys/tpaa108</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>République populaire de Chine</li></country><region><li>Zhejiang</li></region><settlement><li>Hangzhou</li></settlement></list><tree><country name="République populaire de Chine"><region name="Zhejiang"><name sortKey="Wu, Xiaoyi" sort="Wu, Xiaoyi" uniqKey="Wu X" first="Xiaoyi" last="Wu">Xiaoyi Wu</name></region><name sortKey="Fang, Shiyan" sort="Fang, Shiyan" uniqKey="Fang S" first="Shiyan" last="Fang">Shiyan Fang</name><name sortKey="Guo, Qingxue" sort="Guo, Qingxue" uniqKey="Guo Q" first="Qingxue" last="Guo">Qingxue Guo</name><name sortKey="Kang, Jieyu" sort="Kang, Jieyu" uniqKey="Kang J" first="Jieyu" last="Kang">Jieyu Kang</name><name sortKey="Liu, Jiantong" sort="Liu, Jiantong" uniqKey="Liu J" first="Jiantong" last="Liu">Jiantong Liu</name><name sortKey="Meng, Qiqi" sort="Meng, Qiqi" uniqKey="Meng Q" first="Qiqi" last="Meng">Qiqi Meng</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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