Sex-Related Responses of Populus cathayana Shoots and Roots to AM Fungi and Drought Stress.
Identifieur interne : 001417 ( Main/Corpus ); précédent : 001416; suivant : 001418Sex-Related Responses of Populus cathayana Shoots and Roots to AM Fungi and Drought Stress.
Auteurs : Zhen Li ; Na Wu ; Ting Liu ; Hui Chen ; Ming TangSource :
- PloS one [ 1932-6203 ] ; 2015.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Malondialdehyde, Peroxidase.
- microbiology : Populus.
- pathogenicity : Mycorrhizae.
- physiology : Plant Roots, Plant Shoots, Populus.
- Biomass, Droughts, Stress, Physiological.
Abstract
We investigated the impact of drought and arbuscular mycorrhizal (AM) fungi on the morphological structure and physiological function of shoots and roots of male and female seedlings of the dioecious plant Populus cathayana Rehder. Pot-grown seedlings were subjected to well watered or water-limiting conditions (drought) and were grown in soil that was either inoculated or not inoculated with the AM fungus Rhizophagus intraradices. No significant differences were found in the infection rates between the two sexes. Drought decreased root and shoot growth, biomass and root morphological characteristics, whereas superoxide radical (O2-) and hydrogen peroxide content, peroxidase (POD) activity, malondialdehyde (MDA) concentration and proline content were significantly enhanced in both sexes. Male plants that formed an AM fungal symbiosis showed a significant increase in shoot and root morphological growth, increased proline content of leaves and roots, and increased POD activity in roots under both watering regimes; however, MDA concentration in the roots decreased. By contrast, AM fungi either had no effect or a slight negative effect on the shoot and root growth of female plants, with lower root biomass, total biomass and root/shoot ration under drought. In females, MDA concentration increased in leaves and roots under both watering regimes, and the proline content and POD activity of roots increased under drought conditions; however, POD activity significantly decreased under well-watered conditions. These findings suggest that AM fungi enhanced the tolerance of male plants to drought by improving shoot and root growth, biomass and the antioxidant system. Further investigation is needed to unravel the complex effects of AM fungi on the growth and antioxidant system of female plants.
DOI: 10.1371/journal.pone.0128841
PubMed: 26102587
PubMed Central: PMC4478039
Links to Exploration step
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Sex-Related Responses of Populus cathayana Shoots and Roots to AM Fungi and Drought Stress.</title><author><name sortKey="Li, Zhen" sort="Li, Zhen" uniqKey="Li Z" first="Zhen" last="Li">Zhen Li</name><affiliation><nlm:affiliation>College of Life Science, Northwest A&F University, Yangling, China.</nlm:affiliation></affiliation></author><author><name sortKey="Wu, Na" sort="Wu, Na" uniqKey="Wu N" first="Na" last="Wu">Na Wu</name><affiliation><nlm:affiliation>College of Forestry, Northwest A&F University, Yangling, China.</nlm:affiliation></affiliation></author><author><name sortKey="Liu, Ting" sort="Liu, Ting" uniqKey="Liu T" first="Ting" last="Liu">Ting Liu</name><affiliation><nlm:affiliation>College of Life Science, Northwest A&F University, Yangling, China.</nlm:affiliation></affiliation></author><author><name sortKey="Chen, Hui" sort="Chen, Hui" uniqKey="Chen H" first="Hui" last="Chen">Hui Chen</name><affiliation><nlm:affiliation>College of Forestry, Northwest A&F University, Yangling, China.</nlm:affiliation></affiliation></author><author><name sortKey="Tang, Ming" sort="Tang, Ming" uniqKey="Tang M" first="Ming" last="Tang">Ming Tang</name><affiliation><nlm:affiliation>College of Forestry, Northwest A&F University, Yangling, China.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2015">2015</date><idno type="RBID">pubmed:26102587</idno><idno type="pmid">26102587</idno><idno type="doi">10.1371/journal.pone.0128841</idno><idno type="pmc">PMC4478039</idno><idno type="wicri:Area/Main/Corpus">001417</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001417</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Sex-Related Responses of Populus cathayana Shoots and Roots to AM Fungi and Drought Stress.</title><author><name sortKey="Li, Zhen" sort="Li, Zhen" uniqKey="Li Z" first="Zhen" last="Li">Zhen Li</name><affiliation><nlm:affiliation>College of Life Science, Northwest A&F University, Yangling, China.</nlm:affiliation></affiliation></author><author><name sortKey="Wu, Na" sort="Wu, Na" uniqKey="Wu N" first="Na" last="Wu">Na Wu</name><affiliation><nlm:affiliation>College of Forestry, Northwest A&F University, Yangling, China.</nlm:affiliation></affiliation></author><author><name sortKey="Liu, Ting" sort="Liu, Ting" uniqKey="Liu T" first="Ting" last="Liu">Ting Liu</name><affiliation><nlm:affiliation>College of Life Science, Northwest A&F University, Yangling, China.</nlm:affiliation></affiliation></author><author><name sortKey="Chen, Hui" sort="Chen, Hui" uniqKey="Chen H" first="Hui" last="Chen">Hui Chen</name><affiliation><nlm:affiliation>College of Forestry, Northwest A&F University, Yangling, China.</nlm:affiliation></affiliation></author><author><name sortKey="Tang, Ming" sort="Tang, Ming" uniqKey="Tang M" first="Ming" last="Tang">Ming Tang</name><affiliation><nlm:affiliation>College of Forestry, Northwest A&F University, Yangling, China.</nlm:affiliation></affiliation></author></analytic><series><title level="j">PloS one</title><idno type="eISSN">1932-6203</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biomass (MeSH)</term><term>Droughts (MeSH)</term><term>Malondialdehyde (metabolism)</term><term>Mycorrhizae (pathogenicity)</term><term>Peroxidase (metabolism)</term><term>Plant Roots (physiology)</term><term>Plant Shoots (physiology)</term><term>Populus (microbiology)</term><term>Populus (physiology)</term><term>Stress, Physiological (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Malondialdehyde</term><term>Peroxidase</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="pathogenicity" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Plant Roots</term><term>Plant Shoots</term><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomass</term><term>Droughts</term><term>Stress, Physiological</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We investigated the impact of drought and arbuscular mycorrhizal (AM) fungi on the morphological structure and physiological function of shoots and roots of male and female seedlings of the dioecious plant Populus cathayana Rehder. Pot-grown seedlings were subjected to well watered or water-limiting conditions (drought) and were grown in soil that was either inoculated or not inoculated with the AM fungus Rhizophagus intraradices. No significant differences were found in the infection rates between the two sexes. Drought decreased root and shoot growth, biomass and root morphological characteristics, whereas superoxide radical (O2-) and hydrogen peroxide content, peroxidase (POD) activity, malondialdehyde (MDA) concentration and proline content were significantly enhanced in both sexes. Male plants that formed an AM fungal symbiosis showed a significant increase in shoot and root morphological growth, increased proline content of leaves and roots, and increased POD activity in roots under both watering regimes; however, MDA concentration in the roots decreased. By contrast, AM fungi either had no effect or a slight negative effect on the shoot and root growth of female plants, with lower root biomass, total biomass and root/shoot ration under drought. In females, MDA concentration increased in leaves and roots under both watering regimes, and the proline content and POD activity of roots increased under drought conditions; however, POD activity significantly decreased under well-watered conditions. These findings suggest that AM fungi enhanced the tolerance of male plants to drought by improving shoot and root growth, biomass and the antioxidant system. Further investigation is needed to unravel the complex effects of AM fungi on the growth and antioxidant system of female plants. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">26102587</PMID><DateCompleted><Year>2016</Year><Month>04</Month><Day>05</Day></DateCompleted><DateRevised><Year>2020</Year><Month>03</Month><Day>06</Day></DateRevised><Article PubModel="Electronic-eCollection"><Journal><ISSN IssnType="Electronic">1932-6203</ISSN><JournalIssue CitedMedium="Internet"><Volume>10</Volume><Issue>6</Issue><PubDate><Year>2015</Year></PubDate></JournalIssue><Title>PloS one</Title><ISOAbbreviation>PLoS One</ISOAbbreviation></Journal><ArticleTitle>Sex-Related Responses of Populus cathayana Shoots and Roots to AM Fungi and Drought Stress.</ArticleTitle><Pagination><MedlinePgn>e0128841</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1371/journal.pone.0128841</ELocationID><Abstract><AbstractText>We investigated the impact of drought and arbuscular mycorrhizal (AM) fungi on the morphological structure and physiological function of shoots and roots of male and female seedlings of the dioecious plant Populus cathayana Rehder. Pot-grown seedlings were subjected to well watered or water-limiting conditions (drought) and were grown in soil that was either inoculated or not inoculated with the AM fungus Rhizophagus intraradices. No significant differences were found in the infection rates between the two sexes. Drought decreased root and shoot growth, biomass and root morphological characteristics, whereas superoxide radical (O2-) and hydrogen peroxide content, peroxidase (POD) activity, malondialdehyde (MDA) concentration and proline content were significantly enhanced in both sexes. Male plants that formed an AM fungal symbiosis showed a significant increase in shoot and root morphological growth, increased proline content of leaves and roots, and increased POD activity in roots under both watering regimes; however, MDA concentration in the roots decreased. By contrast, AM fungi either had no effect or a slight negative effect on the shoot and root growth of female plants, with lower root biomass, total biomass and root/shoot ration under drought. In females, MDA concentration increased in leaves and roots under both watering regimes, and the proline content and POD activity of roots increased under drought conditions; however, POD activity significantly decreased under well-watered conditions. These findings suggest that AM fungi enhanced the tolerance of male plants to drought by improving shoot and root growth, biomass and the antioxidant system. Further investigation is needed to unravel the complex effects of AM fungi on the growth and antioxidant system of female plants. </AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Zhen</ForeName><Initials>Z</Initials><AffiliationInfo><Affiliation>College of Life Science, Northwest A&F University, Yangling, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Wu</LastName><ForeName>Na</ForeName><Initials>N</Initials><AffiliationInfo><Affiliation>College of Forestry, Northwest A&F University, Yangling, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Liu</LastName><ForeName>Ting</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>College of Life Science, Northwest A&F University, Yangling, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Chen</LastName><ForeName>Hui</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>College of Forestry, Northwest A&F University, Yangling, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Tang</LastName><ForeName>Ming</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>College of Forestry, Northwest A&F University, Yangling, China.</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>06</Month><Day>23</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>PLoS One</MedlineTA><NlmUniqueID>101285081</NlmUniqueID><ISSNLinking>1932-6203</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>4Y8F71G49Q</RegistryNumber><NameOfSubstance UI="D008315">Malondialdehyde</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 1.11.1.7</RegistryNumber><NameOfSubstance UI="D009195">Peroxidase</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><CommentsCorrectionsList><CommentsCorrections RefType="ErratumIn"><RefSource>PLoS One. 2015;10(11):e0142356</RefSource><PMID Version="1">26528724</PMID></CommentsCorrections></CommentsCorrectionsList><MeshHeadingList><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D055864" MajorTopicYN="Y">Droughts</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008315" MajorTopicYN="N">Malondialdehyde</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000472" MajorTopicYN="Y">pathogenicity</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009195" MajorTopicYN="N">Peroxidase</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018520" MajorTopicYN="N">Plant Shoots</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013312" MajorTopicYN="Y">Stress, Physiological</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2014</Year><Month>12</Month><Day>21</Day></PubMedPubDate><PubMedPubDate 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