Sexual competition affects biomass partitioning, carbon-nutrient balance, Cd allocation and ultrastructure of Populus cathayana females and males exposed to Cd stress.
Identifieur interne : 001676 ( Main/Exploration ); précédent : 001675; suivant : 001677Sexual competition affects biomass partitioning, carbon-nutrient balance, Cd allocation and ultrastructure of Populus cathayana females and males exposed to Cd stress.
Auteurs : Juan Chen [République populaire de Chine] ; Baoli Duan [République populaire de Chine] ; Gang Xu [République populaire de Chine] ; Helena Korpelainen [Finlande] ; Ülo Niinemets [Estonie] ; Chunyang Li [République populaire de Chine]Source :
- Tree physiology [ 1758-4469 ] ; 2016.
Descripteurs français
- KwdFr :
- Adaptation physiologique (MeSH), Arbres (métabolisme), Arbres (ultrastructure), Biomasse (MeSH), Cadmium (métabolisme), Carbone (métabolisme), Développement des plantes (MeSH), Polluants chimiques de l'eau (métabolisme), Populus (métabolisme), Populus (ultrastructure), Reproduction (MeSH), Stress physiologique (MeSH), Écosystème (MeSH).
- MESH :
- métabolisme : Arbres, Cadmium, Carbone, Polluants chimiques de l'eau, Populus.
- ultrastructure : Adaptation physiologique, Arbres, Biomasse, Développement des plantes, Populus, Reproduction, Stress physiologique, Écosystème.
English descriptors
- KwdEn :
- Adaptation, Physiological (MeSH), Biomass (MeSH), Cadmium (metabolism), Carbon (metabolism), Ecosystem (MeSH), Plant Development (MeSH), Populus (metabolism), Populus (ultrastructure), Reproduction (MeSH), Stress, Physiological (MeSH), Trees (metabolism), Trees (ultrastructure), Water Pollutants, Chemical (metabolism).
- MESH :
- chemical , metabolism : Cadmium, Carbon, Water Pollutants, Chemical.
- metabolism : Populus, Trees.
- ultrastructure : Populus, Trees.
- Adaptation, Physiological, Biomass, Ecosystem, Plant Development, Reproduction, Stress, Physiological.
Abstract
Although increasing attention has been paid to plant adaptation to soil heavy metal contamination, competition and neighbor effects have been largely overlooked, especially in dioecious plants. In this study, we investigated growth as well as biochemical and ultrastructural responses of Populus cathayana Rehder females and males to cadmium (Cd) stress under different sexual competition patterns. The results showed that competition significantly affects biomass partitioning, photosynthetic capacity, leaf and root ultrastructure, Cd accumulation, the contents of polyphenols, and structural and nonstructural carbohydrates. Compared with single-sex cultivation, plants of opposite sexes exposed to sexual competition accumulated more Cd in tissues and their growth was more strongly inhibited, indicating enhanced Cd toxicity under sexual competition. Under intrasexual competition, females showed greater Cd accumulation, more serious damage at the ultrastructural level and greater reduction in physiological activity than under intersexual competition, while males performed better under intrasexual competition than under intersexual competition. Males improved the female microenvironment by greater Cd uptake and lower resource consumption under intersexual competition. These results demonstrate that the sex of neighbor plants and competition affect sexual differences in growth and in key physiological processes under Cd stress. The asymmetry of sexual competition highlighted here might regulate population structure, and spatial segregation and phytoremediation potential of both sexes in P. cathayana growing in heavy metal-contaminated soils.
DOI: 10.1093/treephys/tpw054
PubMed: 27344063
Affiliations:
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Box 27, FI-00014 University of Helsinki, Finland.</nlm:affiliation><country xml:lang="fr">Finlande</country><wicri:regionArea>Department of Agricultural Sciences, Viikki Plant Science Centre, P.O. Box 27, FI-00014 University of Helsinki</wicri:regionArea><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName><orgName type="university">Université d'Helsinki</orgName></affiliation></author><author><name sortKey="Niinemets, Ulo" sort="Niinemets, Ulo" uniqKey="Niinemets U" first="Ülo" last="Niinemets">Ülo Niinemets</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51014 Tartu, Estonia.</nlm:affiliation><country xml:lang="fr">Estonie</country><wicri:regionArea>Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51014 Tartu</wicri:regionArea><wicri:noRegion>51014 Tartu</wicri:noRegion></affiliation></author><author><name sortKey="Li, Chunyang" sort="Li, Chunyang" uniqKey="Li C" first="Chunyang" last="Li">Chunyang Li</name><affiliation wicri:level="1"><nlm:affiliation>The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an 311300, Zhejiang, China licy@zafu.edu.cn.</nlm:affiliation><country wicri:rule="url">République populaire de Chine</country><wicri:regionArea>The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an 311300, Zhejiang</wicri:regionArea><wicri:noRegion>Zhejiang</wicri:noRegion></affiliation></author></analytic><series><title level="j">Tree physiology</title><idno type="eISSN">1758-4469</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adaptation, Physiological (MeSH)</term><term>Biomass (MeSH)</term><term>Cadmium (metabolism)</term><term>Carbon (metabolism)</term><term>Ecosystem (MeSH)</term><term>Plant Development (MeSH)</term><term>Populus (metabolism)</term><term>Populus (ultrastructure)</term><term>Reproduction (MeSH)</term><term>Stress, Physiological (MeSH)</term><term>Trees (metabolism)</term><term>Trees (ultrastructure)</term><term>Water Pollutants, Chemical (metabolism)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adaptation physiologique (MeSH)</term><term>Arbres (métabolisme)</term><term>Arbres (ultrastructure)</term><term>Biomasse (MeSH)</term><term>Cadmium (métabolisme)</term><term>Carbone (métabolisme)</term><term>Développement des plantes (MeSH)</term><term>Polluants chimiques de l'eau (métabolisme)</term><term>Populus (métabolisme)</term><term>Populus (ultrastructure)</term><term>Reproduction (MeSH)</term><term>Stress physiologique (MeSH)</term><term>Écosystème (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Cadmium</term><term>Carbon</term><term>Water Pollutants, Chemical</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Populus</term><term>Trees</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Arbres</term><term>Cadmium</term><term>Carbone</term><term>Polluants chimiques de l'eau</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="en"><term>Populus</term><term>Trees</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adaptation, Physiological</term><term>Biomass</term><term>Ecosystem</term><term>Plant Development</term><term>Reproduction</term><term>Stress, Physiological</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="fr"><term>Adaptation physiologique</term><term>Arbres</term><term>Biomasse</term><term>Développement des plantes</term><term>Populus</term><term>Reproduction</term><term>Stress physiologique</term><term>Écosystème</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Although increasing attention has been paid to plant adaptation to soil heavy metal contamination, competition and neighbor effects have been largely overlooked, especially in dioecious plants. In this study, we investigated growth as well as biochemical and ultrastructural responses of Populus cathayana Rehder females and males to cadmium (Cd) stress under different sexual competition patterns. The results showed that competition significantly affects biomass partitioning, photosynthetic capacity, leaf and root ultrastructure, Cd accumulation, the contents of polyphenols, and structural and nonstructural carbohydrates. Compared with single-sex cultivation, plants of opposite sexes exposed to sexual competition accumulated more Cd in tissues and their growth was more strongly inhibited, indicating enhanced Cd toxicity under sexual competition. Under intrasexual competition, females showed greater Cd accumulation, more serious damage at the ultrastructural level and greater reduction in physiological activity than under intersexual competition, while males performed better under intrasexual competition than under intersexual competition. Males improved the female microenvironment by greater Cd uptake and lower resource consumption under intersexual competition. These results demonstrate that the sex of neighbor plants and competition affect sexual differences in growth and in key physiological processes under Cd stress. The asymmetry of sexual competition highlighted here might regulate population structure, and spatial segregation and phytoremediation potential of both sexes in P. cathayana growing in heavy metal-contaminated soils.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">27344063</PMID><DateCompleted><Year>2017</Year><Month>08</Month><Day>23</Day></DateCompleted><DateRevised><Year>2017</Year><Month>12</Month><Day>18</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><Volume>36</Volume><Issue>11</Issue><PubDate><Year>2016</Year><Month>11</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Sexual competition affects biomass partitioning, carbon-nutrient balance, Cd allocation and ultrastructure of Populus cathayana females and males exposed to Cd stress.</ArticleTitle><Pagination><MedlinePgn>1353-1368</MedlinePgn></Pagination><Abstract><AbstractText>Although increasing attention has been paid to plant adaptation to soil heavy metal contamination, competition and neighbor effects have been largely overlooked, especially in dioecious plants. In this study, we investigated growth as well as biochemical and ultrastructural responses of Populus cathayana Rehder females and males to cadmium (Cd) stress under different sexual competition patterns. The results showed that competition significantly affects biomass partitioning, photosynthetic capacity, leaf and root ultrastructure, Cd accumulation, the contents of polyphenols, and structural and nonstructural carbohydrates. Compared with single-sex cultivation, plants of opposite sexes exposed to sexual competition accumulated more Cd in tissues and their growth was more strongly inhibited, indicating enhanced Cd toxicity under sexual competition. Under intrasexual competition, females showed greater Cd accumulation, more serious damage at the ultrastructural level and greater reduction in physiological activity than under intersexual competition, while males performed better under intrasexual competition than under intersexual competition. Males improved the female microenvironment by greater Cd uptake and lower resource consumption under intersexual competition. These results demonstrate that the sex of neighbor plants and competition affect sexual differences in growth and in key physiological processes under Cd stress. The asymmetry of sexual competition highlighted here might regulate population structure, and spatial segregation and phytoremediation potential of both sexes in P. cathayana growing in heavy metal-contaminated soils.</AbstractText><CopyrightInformation>© The Author 2016. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Chen</LastName><ForeName>Juan</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, China.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Duan</LastName><ForeName>Baoli</ForeName><Initials>B</Initials><AffiliationInfo><Affiliation>Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Xu</LastName><ForeName>Gang</ForeName><Initials>G</Initials><AffiliationInfo><Affiliation>School of Life Sciences, Southwest University of Science and Technology, Mianyang 621010, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Korpelainen</LastName><ForeName>Helena</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>Department of Agricultural Sciences, Viikki Plant Science Centre, P.O. Box 27, FI-00014 University of Helsinki, Finland.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Niinemets</LastName><ForeName>Ülo</ForeName><Initials>Ü</Initials><AffiliationInfo><Affiliation>Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51014 Tartu, Estonia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Chunyang</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an 311300, Zhejiang, China licy@zafu.edu.cn.</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>2016</Year><Month>06</Month><Day>24</Day></ArticleDate></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D014874">Water Pollutants, Chemical</NameOfSubstance></Chemical><Chemical><RegistryNumber>00BH33GNGH</RegistryNumber><NameOfSubstance UI="D002104">Cadmium</NameOfSubstance></Chemical><Chemical><RegistryNumber>7440-44-0</RegistryNumber><NameOfSubstance UI="D002244">Carbon</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000222" MajorTopicYN="N">Adaptation, Physiological</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002104" MajorTopicYN="N">Cadmium</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002244" MajorTopicYN="N">Carbon</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017753" MajorTopicYN="N">Ecosystem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D063245" MajorTopicYN="N">Plant Development</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012098" MajorTopicYN="N">Reproduction</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013312" MajorTopicYN="N">Stress, Physiological</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014874" MajorTopicYN="N">Water Pollutants, Chemical</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">Cd accumulation</Keyword><Keyword MajorTopicYN="Y">carbohydrates</Keyword><Keyword MajorTopicYN="Y">dioecy</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2016</Year><Month>01</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2016</Year><Month>05</Month><Day>23</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2016</Year><Month>6</Month><Day>28</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2017</Year><Month>8</Month><Day>24</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2016</Year><Month>6</Month><Day>26</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">27344063</ArticleId><ArticleId IdType="pii">tpw054</ArticleId><ArticleId IdType="doi">10.1093/treephys/tpw054</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Estonie</li><li>Finlande</li><li>République populaire de Chine</li></country><region><li>Uusimaa</li></region><settlement><li>Helsinki</li></settlement><orgName><li>Université d'Helsinki</li></orgName></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Chen, Juan" sort="Chen, Juan" uniqKey="Chen J" first="Juan" last="Chen">Juan Chen</name></noRegion><name sortKey="Chen, Juan" sort="Chen, Juan" uniqKey="Chen J" first="Juan" last="Chen">Juan Chen</name><name sortKey="Duan, Baoli" sort="Duan, Baoli" uniqKey="Duan B" first="Baoli" last="Duan">Baoli Duan</name><name sortKey="Li, Chunyang" sort="Li, Chunyang" uniqKey="Li C" first="Chunyang" last="Li">Chunyang Li</name><name sortKey="Xu, Gang" sort="Xu, Gang" uniqKey="Xu G" first="Gang" last="Xu">Gang Xu</name></country><country name="Finlande"><region name="Uusimaa"><name sortKey="Korpelainen, Helena" sort="Korpelainen, Helena" uniqKey="Korpelainen H" first="Helena" last="Korpelainen">Helena Korpelainen</name></region></country><country name="Estonie"><noRegion><name sortKey="Niinemets, Ulo" sort="Niinemets, Ulo" uniqKey="Niinemets U" first="Ülo" last="Niinemets">Ülo Niinemets</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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