Are males and females of Populus cathayana differentially sensitive to Cd stress?
Identifieur interne : 000559 ( Main/Exploration ); précédent : 000558; suivant : 000560Are males and females of Populus cathayana differentially sensitive to Cd stress?
Auteurs : Miao Liu [République populaire de Chine] ; Xingxing Liu [République populaire de Chine] ; Jieyu Kang [République populaire de Chine] ; Helena Korpelainen [Finlande] ; Chunyang Li [République populaire de Chine]Source :
- Journal of hazardous materials [ 1873-3336 ] ; 2020.
Abstract
This study clarifies the mechanisms of Cd uptake, translocation and detoxification in Populus cathayana Rehder females and males, and reveals a novel strategy for dioecious plants to cope with Cd contamination. Females exhibited a high degree of Cd uptake and root-to-shoot translocation, while males showed extensive Cd accumulation in roots, elevated antioxidative capacity, and effective cellular and bark Cd sequestration. Our study also found that Cd is largely located in epidermal and cortical tissues of male roots and leaves, while in females, more Cd was present in vascular tissues of roots and leaves, as well as in leaf mesophyll. In addition, the distributions of sulphur (S) and phosphorus (P) were very similar as that of Cd in males, but the associations were weak in females. Scanning electron microscopy and energy spectroscopy analyses suggested that the amounts of tissue Cd were positively correlated with P and S amounts in males, but not in females (a weak correlation between S and Cd). Transcriptional data suggested that Cd stress promoted the upregulation of genes related to Cd uptake and translocation in females, and that of genes related to cell wall biosynthesis, metal tolerance and secondary metabolism in males. Our results indicated that coordinated physiological, microstructural and transcriptional responses to Cd stress endowed superior Cd tolerance in males compared with females, and provided new insights into mechanisms underlying sexually differential responses to Cd stress.
DOI: 10.1016/j.jhazmat.2020.122411
PubMed: 32114141
Affiliations:
- Finlande, République populaire de Chine
- Uusimaa, Zhejiang
- Hangzhou, Helsinki
- Université d'Helsinki, Université de Zhejiang
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Box 27, FI-00014, Finland.</nlm:affiliation><country xml:lang="fr">Finlande</country><wicri:regionArea>Department of Agricultural Sciences, Viikki Plant Science Centre, University of Helsinki, P.O. Box 27, FI-00014</wicri:regionArea><orgName type="university">Université d'Helsinki</orgName><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName></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>College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China. Electronic address: licy@hznu.edu.cn.</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></analytic><series><title level="j">Journal of hazardous materials</title><idno type="eISSN">1873-3336</idno><imprint><date when="2020" type="published">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This study clarifies the mechanisms of Cd uptake, translocation and detoxification in Populus cathayana Rehder females and males, and reveals a novel strategy for dioecious plants to cope with Cd contamination. Females exhibited a high degree of Cd uptake and root-to-shoot translocation, while males showed extensive Cd accumulation in roots, elevated antioxidative capacity, and effective cellular and bark Cd sequestration. Our study also found that Cd is largely located in epidermal and cortical tissues of male roots and leaves, while in females, more Cd was present in vascular tissues of roots and leaves, as well as in leaf mesophyll. In addition, the distributions of sulphur (S) and phosphorus (P) were very similar as that of Cd in males, but the associations were weak in females. Scanning electron microscopy and energy spectroscopy analyses suggested that the amounts of tissue Cd were positively correlated with P and S amounts in males, but not in females (a weak correlation between S and Cd). Transcriptional data suggested that Cd stress promoted the upregulation of genes related to Cd uptake and translocation in females, and that of genes related to cell wall biosynthesis, metal tolerance and secondary metabolism in males. Our results indicated that coordinated physiological, microstructural and transcriptional responses to Cd stress endowed superior Cd tolerance in males compared with females, and provided new insights into mechanisms underlying sexually differential responses to Cd stress.</div></front></TEI><pubmed><MedlineCitation Status="In-Process" Owner="NLM"><PMID Version="1">32114141</PMID><DateRevised><Year>2020</Year><Month>06</Month><Day>18</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1873-3336</ISSN><JournalIssue CitedMedium="Internet"><Volume>393</Volume><PubDate><Year>2020</Year><Month>07</Month><Day>05</Day></PubDate></JournalIssue><Title>Journal of hazardous materials</Title><ISOAbbreviation>J Hazard Mater</ISOAbbreviation></Journal><ArticleTitle>Are males and females of Populus cathayana differentially sensitive to Cd stress?</ArticleTitle><Pagination><MedlinePgn>122411</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S0304-3894(20)30399-X</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.jhazmat.2020.122411</ELocationID><Abstract><AbstractText>This study clarifies the mechanisms of Cd uptake, translocation and detoxification in Populus cathayana Rehder females and males, and reveals a novel strategy for dioecious plants to cope with Cd contamination. Females exhibited a high degree of Cd uptake and root-to-shoot translocation, while males showed extensive Cd accumulation in roots, elevated antioxidative capacity, and effective cellular and bark Cd sequestration. Our study also found that Cd is largely located in epidermal and cortical tissues of male roots and leaves, while in females, more Cd was present in vascular tissues of roots and leaves, as well as in leaf mesophyll. In addition, the distributions of sulphur (S) and phosphorus (P) were very similar as that of Cd in males, but the associations were weak in females. Scanning electron microscopy and energy spectroscopy analyses suggested that the amounts of tissue Cd were positively correlated with P and S amounts in males, but not in females (a weak correlation between S and Cd). Transcriptional data suggested that Cd stress promoted the upregulation of genes related to Cd uptake and translocation in females, and that of genes related to cell wall biosynthesis, metal tolerance and secondary metabolism in males. Our results indicated that coordinated physiological, microstructural and transcriptional responses to Cd stress endowed superior Cd tolerance in males compared with females, and provided new insights into mechanisms underlying sexually differential responses to Cd stress.</AbstractText><CopyrightInformation>Copyright © 2020 Elsevier B.V. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Liu</LastName><ForeName>Miao</ForeName><Initials>M</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>Xingxing</ForeName><Initials>X</Initials><AffiliationInfo><Affiliation>State Key Laboratory of Plant Physiology and Biochemistry, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, 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>Korpelainen</LastName><ForeName>Helena</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>Department of Agricultural Sciences, Viikki Plant Science Centre, University of Helsinki, P.O. Box 27, FI-00014, Finland.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Chunyang</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China. Electronic address: licy@hznu.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>2020</Year><Month>02</Month><Day>25</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>J Hazard Mater</MedlineTA><NlmUniqueID>9422688</NlmUniqueID><ISSNLinking>0304-3894</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">Cd sequestration</Keyword><Keyword MajorTopicYN="Y">Cd stress</Keyword><Keyword MajorTopicYN="Y">Cd uptake</Keyword><Keyword MajorTopicYN="Y">Dioecy</Keyword><Keyword MajorTopicYN="Y">Sexual differences</Keyword><Keyword MajorTopicYN="Y">Transcripts</Keyword></KeywordList><CoiStatement>Declaration of Competing Interest The authors declare that they have no conflict of interest.</CoiStatement></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2019</Year><Month>11</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2020</Year><Month>02</Month><Day>23</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2020</Year><Month>02</Month><Day>24</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2020</Year><Month>3</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>3</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>3</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32114141</ArticleId><ArticleId IdType="pii">S0304-3894(20)30399-X</ArticleId><ArticleId IdType="doi">10.1016/j.jhazmat.2020.122411</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Finlande</li><li>République populaire de Chine</li></country><region><li>Uusimaa</li><li>Zhejiang</li></region><settlement><li>Hangzhou</li><li>Helsinki</li></settlement><orgName><li>Université d'Helsinki</li><li>Université de Zhejiang</li></orgName></list><tree><country name="République populaire de Chine"><region name="Zhejiang"><name sortKey="Liu, Miao" sort="Liu, Miao" uniqKey="Liu M" first="Miao" last="Liu">Miao Liu</name></region><name sortKey="Kang, Jieyu" sort="Kang, Jieyu" uniqKey="Kang J" first="Jieyu" last="Kang">Jieyu Kang</name><name sortKey="Li, Chunyang" sort="Li, Chunyang" uniqKey="Li C" first="Chunyang" last="Li">Chunyang Li</name><name sortKey="Liu, Xingxing" sort="Liu, Xingxing" uniqKey="Liu X" first="Xingxing" last="Liu">Xingxing Liu</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></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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