Sex-specific responses of Populus deltoides to interaction of cadmium and salinity in root systems.
Identifieur interne : 000123 ( Main/Exploration ); précédent : 000122; suivant : 000124Sex-specific responses of Populus deltoides to interaction of cadmium and salinity in root systems.
Auteurs : Linting Hao [République populaire de Chine] ; Lianghua Chen [République populaire de Chine] ; Peng Zhu [République populaire de Chine] ; Jian Zhang [République populaire de Chine] ; Danju Zhang [République populaire de Chine] ; Jiujin Xiao [République populaire de Chine] ; Zhenfeng Xu [République populaire de Chine] ; Li Zhang [République populaire de Chine] ; Yang Liu [République populaire de Chine] ; Han Li [République populaire de Chine] ; Hanbo Yang [République populaire de Chine] ; Guoxing Cao [République populaire de Chine]Source :
- Ecotoxicology and environmental safety [ 1090-2414 ] ; 2020.
Descripteurs français
- KwdFr :
- Biomasse (MeSH), Cadmium (toxicité), Chlorure de sodium (toxicité), Polluants du sol (toxicité), Populus (croissance et développement), Populus (effets des médicaments et des substances chimiques), Populus (physiologie), Racines de plante (croissance et développement), Racines de plante (effets des médicaments et des substances chimiques), Racines de plante (physiologie), Salinité (MeSH), Sexe (MeSH), Sol (MeSH).
- MESH :
- croissance et développement : Populus, Racines de plante.
- effets des médicaments et des substances chimiques : Populus, Racines de plante.
- physiologie : Populus, Racines de plante.
- toxicité : Cadmium, Chlorure de sodium, Polluants du sol.
- Biomasse, Salinité, Sexe, Sol.
English descriptors
- KwdEn :
- Biomass (MeSH), Cadmium (toxicity), Plant Roots (drug effects), Plant Roots (growth & development), Plant Roots (physiology), Populus (drug effects), Populus (growth & development), Populus (physiology), Salinity (MeSH), Sex (MeSH), Sodium Chloride (toxicity), Soil (MeSH), Soil Pollutants (toxicity).
- MESH :
- chemical , toxicity : Cadmium, Sodium Chloride, Soil Pollutants.
- drug effects : Plant Roots, Populus.
- growth & development : Plant Roots, Populus.
- physiology : Plant Roots, Populus.
- Biomass, Salinity, Sex, Soil.
Abstract
More research about branch order-specific accumulation of toxic ions in root systems is needed to know root branch-related responses in growth and physiology. In this study, we used Populus deltoides females and males as a model to detect sex-specific differences in physiology, biochemistry, ultrastructure of absorbing roots and distribution of toxic ions in heterogeneous root systems under Cd, salinity and combined stress. Healthy annual male and female plants of P. deltoides were cultivated in soils including 5 mg kg-1 of Cd, 0.2% (w/w) of NaCl and their combination for a growth season. Our results are mainly as follows: (1) females suffered more growth inhibition, root biomass decline, root viability depression, and damage to distal root cells, but lower ability to scavenge reactive oxygen species (ROS) than the males under all stresses; (2) In both sexes, salinity adopted in the present study caused more significant negative effects on growth and organelles integrity than Cd stress, while interaction treatment did not induced a further depression in growth or more impairments in root cells of both sexes in comparison to salinity, indicating influence of combined stress was not equal simply to a superposition of the effects caused by single factors; (3) Cd and Na accumulation in root systems is highly heterogeneous and branch order-specific, with lower-order roots containing more Cd2+ but less Na+, and higher-order roots accumulating more Na+ but less Cd2+. Besides, it is noteworthy that females accumulated more Cd2+ in 1-2 order roots and more Na+ in 1-3 order roots than males under the interaction treatment. These results indicated that strategies in toxic ions accumulation in heterogeneous root systems of P. deltoides was highly branch order-specific, and may closely correlate with sex-specific root growth and physiological responses to the interaction of Cd and salinity.
DOI: 10.1016/j.ecoenv.2020.110437
PubMed: 32193020
Affiliations:
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Le document en format XML
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Electronic address: sicauchenlh@126.com.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Zhu, Peng" sort="Zhu, Peng" uniqKey="Zhu P" first="Peng" last="Zhu">Peng Zhu</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Zhang, Jian" sort="Zhang, Jian" uniqKey="Zhang J" first="Jian" last="Zhang">Jian Zhang</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Zhang, Danju" sort="Zhang, Danju" uniqKey="Zhang D" first="Danju" last="Zhang">Danju Zhang</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; 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Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Zhang, Li" sort="Zhang, Li" uniqKey="Zhang L" first="Li" last="Zhang">Li Zhang</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Liu, Yang" sort="Liu, Yang" uniqKey="Liu Y" first="Yang" last="Liu">Yang Liu</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Li, Han" sort="Li, Han" uniqKey="Li H" first="Han" last="Li">Han Li</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Yang, Hanbo" sort="Yang, Hanbo" uniqKey="Yang H" first="Hanbo" last="Yang">Hanbo Yang</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Cao, Guoxing" sort="Cao, Guoxing" uniqKey="Cao G" first="Guoxing" last="Cao">Guoxing Cao</name><affiliation wicri:level="1"><nlm:affiliation>College of Forestry, Sichuan Agricultural University, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Forestry, Sichuan Agricultural University, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2020">2020</date><idno type="RBID">pubmed:32193020</idno><idno type="pmid">32193020</idno><idno type="doi">10.1016/j.ecoenv.2020.110437</idno><idno type="wicri:Area/Main/Corpus">000383</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000383</idno><idno type="wicri:Area/Main/Curation">000383</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">000383</idno><idno type="wicri:Area/Main/Exploration">000383</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Sex-specific responses of Populus deltoides to interaction of cadmium and salinity in root systems.</title><author><name sortKey="Hao, Linting" sort="Hao, Linting" uniqKey="Hao L" first="Linting" last="Hao">Linting Hao</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Chen, Lianghua" sort="Chen, Lianghua" uniqKey="Chen L" first="Lianghua" last="Chen">Lianghua Chen</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China. Electronic address: sicauchenlh@126.com.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Zhu, Peng" sort="Zhu, Peng" uniqKey="Zhu P" first="Peng" last="Zhu">Peng Zhu</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Zhang, Jian" sort="Zhang, Jian" uniqKey="Zhang J" first="Jian" last="Zhang">Jian Zhang</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Zhang, Danju" sort="Zhang, Danju" uniqKey="Zhang D" first="Danju" last="Zhang">Danju Zhang</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Xiao, Jiujin" sort="Xiao, Jiujin" uniqKey="Xiao J" first="Jiujin" last="Xiao">Jiujin Xiao</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Xu, Zhenfeng" sort="Xu, Zhenfeng" uniqKey="Xu Z" first="Zhenfeng" last="Xu">Zhenfeng Xu</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Zhang, Li" sort="Zhang, Li" uniqKey="Zhang L" first="Li" last="Zhang">Li Zhang</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Liu, Yang" sort="Liu, Yang" uniqKey="Liu Y" first="Yang" last="Liu">Yang Liu</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Li, Han" sort="Li, Han" uniqKey="Li H" first="Han" last="Li">Han Li</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Yang, Hanbo" sort="Yang, Hanbo" uniqKey="Yang H" first="Hanbo" last="Yang">Hanbo Yang</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author><author><name sortKey="Cao, Guoxing" sort="Cao, Guoxing" uniqKey="Cao G" first="Guoxing" last="Cao">Guoxing Cao</name><affiliation wicri:level="1"><nlm:affiliation>College of Forestry, Sichuan Agricultural University, Chengdu, 611130, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Forestry, Sichuan Agricultural University, Chengdu, 611130</wicri:regionArea><wicri:noRegion>611130</wicri:noRegion></affiliation></author></analytic><series><title level="j">Ecotoxicology and environmental safety</title><idno type="eISSN">1090-2414</idno><imprint><date when="2020" type="published">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biomass (MeSH)</term><term>Cadmium (toxicity)</term><term>Plant Roots (drug effects)</term><term>Plant Roots (growth & development)</term><term>Plant Roots (physiology)</term><term>Populus (drug effects)</term><term>Populus (growth & development)</term><term>Populus (physiology)</term><term>Salinity (MeSH)</term><term>Sex (MeSH)</term><term>Sodium Chloride (toxicity)</term><term>Soil (MeSH)</term><term>Soil Pollutants (toxicity)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Biomasse (MeSH)</term><term>Cadmium (toxicité)</term><term>Chlorure de sodium (toxicité)</term><term>Polluants du sol (toxicité)</term><term>Populus (croissance et développement)</term><term>Populus (effets des médicaments et des substances chimiques)</term><term>Populus (physiologie)</term><term>Racines de plante (croissance et développement)</term><term>Racines de plante (effets des médicaments et des substances chimiques)</term><term>Racines de plante (physiologie)</term><term>Salinité (MeSH)</term><term>Sexe (MeSH)</term><term>Sol (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="toxicity" xml:lang="en"><term>Cadmium</term><term>Sodium Chloride</term><term>Soil Pollutants</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Populus</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Plant Roots</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Populus</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Plant Roots</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Populus</term><term>Racines de plante</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Plant Roots</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="toxicité" xml:lang="fr"><term>Cadmium</term><term>Chlorure de sodium</term><term>Polluants du sol</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomass</term><term>Salinity</term><term>Sex</term><term>Soil</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Biomasse</term><term>Salinité</term><term>Sexe</term><term>Sol</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">More research about branch order-specific accumulation of toxic ions in root systems is needed to know root branch-related responses in growth and physiology. In this study, we used Populus deltoides females and males as a model to detect sex-specific differences in physiology, biochemistry, ultrastructure of absorbing roots and distribution of toxic ions in heterogeneous root systems under Cd, salinity and combined stress. Healthy annual male and female plants of P. deltoides were cultivated in soils including 5 mg kg<sup>-1</sup> of Cd, 0.2% (w/w) of NaCl and their combination for a growth season. Our results are mainly as follows: (1) females suffered more growth inhibition, root biomass decline, root viability depression, and damage to distal root cells, but lower ability to scavenge reactive oxygen species (ROS) than the males under all stresses; (2) In both sexes, salinity adopted in the present study caused more significant negative effects on growth and organelles integrity than Cd stress, while interaction treatment did not induced a further depression in growth or more impairments in root cells of both sexes in comparison to salinity, indicating influence of combined stress was not equal simply to a superposition of the effects caused by single factors; (3) Cd and Na accumulation in root systems is highly heterogeneous and branch order-specific, with lower-order roots containing more Cd<sup>2+</sup> but less Na<sup>+</sup>, and higher-order roots accumulating more Na<sup>+</sup> but less Cd<sup>2+</sup>. Besides, it is noteworthy that females accumulated more Cd<sup>2+</sup> in 1-2 order roots and more Na<sup>+</sup> in 1-3 order roots than males under the interaction treatment. These results indicated that strategies in toxic ions accumulation in heterogeneous root systems of P. deltoides was highly branch order-specific, and may closely correlate with sex-specific root growth and physiological responses to the interaction of Cd and salinity.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">32193020</PMID><DateCompleted><Year>2020</Year><Month>06</Month><Day>22</Day></DateCompleted><DateRevised><Year>2020</Year><Month>06</Month><Day>22</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1090-2414</ISSN><JournalIssue CitedMedium="Internet"><Volume>195</Volume><PubDate><Year>2020</Year><Month>Jun</Month><Day>01</Day></PubDate></JournalIssue><Title>Ecotoxicology and environmental safety</Title><ISOAbbreviation>Ecotoxicol Environ Saf</ISOAbbreviation></Journal><ArticleTitle>Sex-specific responses of Populus deltoides to interaction of cadmium and salinity in root systems.</ArticleTitle><Pagination><MedlinePgn>110437</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S0147-6513(20)30276-1</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.ecoenv.2020.110437</ELocationID><Abstract><AbstractText>More research about branch order-specific accumulation of toxic ions in root systems is needed to know root branch-related responses in growth and physiology. In this study, we used Populus deltoides females and males as a model to detect sex-specific differences in physiology, biochemistry, ultrastructure of absorbing roots and distribution of toxic ions in heterogeneous root systems under Cd, salinity and combined stress. Healthy annual male and female plants of P. deltoides were cultivated in soils including 5 mg kg<sup>-1</sup> of Cd, 0.2% (w/w) of NaCl and their combination for a growth season. Our results are mainly as follows: (1) females suffered more growth inhibition, root biomass decline, root viability depression, and damage to distal root cells, but lower ability to scavenge reactive oxygen species (ROS) than the males under all stresses; (2) In both sexes, salinity adopted in the present study caused more significant negative effects on growth and organelles integrity than Cd stress, while interaction treatment did not induced a further depression in growth or more impairments in root cells of both sexes in comparison to salinity, indicating influence of combined stress was not equal simply to a superposition of the effects caused by single factors; (3) Cd and Na accumulation in root systems is highly heterogeneous and branch order-specific, with lower-order roots containing more Cd<sup>2+</sup> but less Na<sup>+</sup>, and higher-order roots accumulating more Na<sup>+</sup> but less Cd<sup>2+</sup>. Besides, it is noteworthy that females accumulated more Cd<sup>2+</sup> in 1-2 order roots and more Na<sup>+</sup> in 1-3 order roots than males under the interaction treatment. These results indicated that strategies in toxic ions accumulation in heterogeneous root systems of P. deltoides was highly branch order-specific, and may closely correlate with sex-specific root growth and physiological responses to the interaction of Cd and salinity.</AbstractText><CopyrightInformation>Copyright © 2020 Elsevier Inc. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Hao</LastName><ForeName>Linting</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Chen</LastName><ForeName>Lianghua</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China. Electronic address: sicauchenlh@126.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zhu</LastName><ForeName>Peng</ForeName><Initials>P</Initials><AffiliationInfo><Affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zhang</LastName><ForeName>Jian</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zhang</LastName><ForeName>Danju</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Xiao</LastName><ForeName>Jiujin</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Xu</LastName><ForeName>Zhenfeng</ForeName><Initials>Z</Initials><AffiliationInfo><Affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zhang</LastName><ForeName>Li</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Liu</LastName><ForeName>Yang</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Han</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Yang</LastName><ForeName>Hanbo</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>Institute of Ecological Forestry, Sichuan Agricultural University, Chengdu, 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu, 611130, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Cao</LastName><ForeName>Guoxing</ForeName><Initials>G</Initials><AffiliationInfo><Affiliation>College of Forestry, Sichuan Agricultural University, Chengdu, 611130, China.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2020</Year><Month>03</Month><Day>17</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Ecotoxicol Environ Saf</MedlineTA><NlmUniqueID>7805381</NlmUniqueID><ISSNLinking>0147-6513</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012989">Soil Pollutants</NameOfSubstance></Chemical><Chemical><RegistryNumber>00BH33GNGH</RegistryNumber><NameOfSubstance UI="D002104">Cadmium</NameOfSubstance></Chemical><Chemical><RegistryNumber>451W47IQ8X</RegistryNumber><NameOfSubstance UI="D012965">Sodium Chloride</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002104" MajorTopicYN="N">Cadmium</DescriptorName><QualifierName UI="Q000633" MajorTopicYN="Y">toxicity</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="Y">drug effects</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="Y">drug effects</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D054712" MajorTopicYN="N">Salinity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012723" MajorTopicYN="N">Sex</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012965" MajorTopicYN="N">Sodium Chloride</DescriptorName><QualifierName UI="Q000633" MajorTopicYN="Y">toxicity</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012989" MajorTopicYN="N">Soil Pollutants</DescriptorName><QualifierName UI="Q000633" MajorTopicYN="Y">toxicity</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Combined stress</Keyword><Keyword MajorTopicYN="N">Dioecy</Keyword><Keyword MajorTopicYN="N">Root order</Keyword><Keyword MajorTopicYN="N">Toxic ion distribution</Keyword><Keyword MajorTopicYN="N">Ultrastructural integrity</Keyword></KeywordList><CoiStatement>Declaration of competing interest The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.</CoiStatement></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2019</Year><Month>11</Month><Day>21</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2020</Year><Month>03</Month><Day>02</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2020</Year><Month>03</Month><Day>03</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2020</Year><Month>3</Month><Day>21</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>6</Month><Day>23</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>3</Month><Day>21</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32193020</ArticleId><ArticleId IdType="pii">S0147-6513(20)30276-1</ArticleId><ArticleId IdType="doi">10.1016/j.ecoenv.2020.110437</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>République populaire de Chine</li></country></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Hao, Linting" sort="Hao, Linting" uniqKey="Hao L" first="Linting" last="Hao">Linting Hao</name></noRegion><name sortKey="Cao, Guoxing" sort="Cao, Guoxing" uniqKey="Cao G" first="Guoxing" last="Cao">Guoxing Cao</name><name sortKey="Chen, Lianghua" sort="Chen, Lianghua" uniqKey="Chen L" first="Lianghua" last="Chen">Lianghua Chen</name><name sortKey="Li, Han" sort="Li, Han" uniqKey="Li H" first="Han" last="Li">Han Li</name><name sortKey="Liu, Yang" sort="Liu, Yang" uniqKey="Liu Y" first="Yang" last="Liu">Yang Liu</name><name sortKey="Xiao, Jiujin" sort="Xiao, Jiujin" uniqKey="Xiao J" first="Jiujin" last="Xiao">Jiujin Xiao</name><name sortKey="Xu, Zhenfeng" sort="Xu, Zhenfeng" uniqKey="Xu Z" first="Zhenfeng" last="Xu">Zhenfeng Xu</name><name sortKey="Yang, Hanbo" sort="Yang, Hanbo" uniqKey="Yang H" first="Hanbo" last="Yang">Hanbo Yang</name><name sortKey="Zhang, Danju" sort="Zhang, Danju" uniqKey="Zhang D" first="Danju" last="Zhang">Danju Zhang</name><name sortKey="Zhang, Jian" sort="Zhang, Jian" uniqKey="Zhang J" first="Jian" last="Zhang">Jian Zhang</name><name sortKey="Zhang, Li" sort="Zhang, Li" uniqKey="Zhang L" first="Li" last="Zhang">Li Zhang</name><name sortKey="Zhu, Peng" sort="Zhu, Peng" uniqKey="Zhu P" first="Peng" last="Zhu">Peng Zhu</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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