Photosynthetic responses of Arabidopsis to SO2 were related to photosynthetic pigments, photosynthesis gene expression and redox regulation.
Identifieur interne : 000031 ( Main/Exploration ); précédent : 000030; suivant : 000032Photosynthetic responses of Arabidopsis to SO2 were related to photosynthetic pigments, photosynthesis gene expression and redox regulation.
Auteurs : Lijuan Li [République populaire de Chine] ; Huilan Yi [République populaire de Chine]Source :
- Ecotoxicology and environmental safety [ 1090-2414 ] ; 2020.
Descripteurs français
- KwdFr :
- Arabidopsis (effets des médicaments et des substances chimiques), Arabidopsis (génétique), Arabidopsis (métabolisme), Chloroplastes (métabolisme), Complexe protéique du photosystème I (métabolisme), Complexe protéique du photosystème II (métabolisme), Dioxyde de soufre (toxicité), Expression des gènes (effets des médicaments et des substances chimiques), Feuilles de plante (effets des médicaments et des substances chimiques), Feuilles de plante (métabolisme), Photosynthèse (effets des médicaments et des substances chimiques), Photosynthèse (génétique), Pigments biologiques (métabolisme), Polluants atmosphériques (toxicité), Régulation négative (MeSH), Régulation positive (MeSH), Stress oxydatif (effets des médicaments et des substances chimiques).
- MESH :
- effets des médicaments et des substances chimiques : Arabidopsis, Expression des gènes, Feuilles de plante, Photosynthèse, Stress oxydatif.
- génétique : Arabidopsis, Photosynthèse.
- métabolisme : Arabidopsis, Chloroplastes, Complexe protéique du photosystème I, Complexe protéique du photosystème II, Feuilles de plante, Pigments biologiques.
- toxicité : Dioxyde de soufre, Polluants atmosphériques.
- Régulation négative, Régulation positive.
English descriptors
- KwdEn :
- Air Pollutants (toxicity), Arabidopsis (drug effects), Arabidopsis (genetics), Arabidopsis (metabolism), Chloroplasts (metabolism), Down-Regulation (MeSH), Gene Expression (drug effects), Oxidative Stress (drug effects), Photosynthesis (drug effects), Photosynthesis (genetics), Photosystem I Protein Complex (metabolism), Photosystem II Protein Complex (metabolism), Pigments, Biological (metabolism), Plant Leaves (drug effects), Plant Leaves (metabolism), Sulfur Dioxide (toxicity), Up-Regulation (MeSH).
- MESH :
- chemical , metabolism : Photosystem I Protein Complex, Photosystem II Protein Complex, Pigments, Biological.
- chemical , toxicity : Air Pollutants, Sulfur Dioxide.
- drug effects : Arabidopsis, Gene Expression, Oxidative Stress, Photosynthesis, Plant Leaves.
- genetics : Arabidopsis, Photosynthesis.
- metabolism : Arabidopsis, Chloroplasts, Plant Leaves.
- Down-Regulation, Up-Regulation.
Abstract
Sulfur dioxide (SO2) is one of the most common and harmful air pollutants. High concentrations of SO2 can induce a series of defensive responses in Arabidopsis plants. However, the role of photosynthesis in the plant response to SO2 stress is not clear. Here, we report the photosynthetic responses of Arabidopsis plants to SO2 stress. Exposure to 30 mg/m3 SO2 decreased stomatal conductance (Gs) and transpiration rate (Tr) but increased photosynthetic pigments and net photosynthetic rate (Pn). The contents of carbohydrates and sucrose were not altered. The transcript levels of most genes related to photosystem II (PSII), cytochrome b6/f (Cytb6f), photosystem I (PSI) and carbon fixation were upregulated, revealing one important regulatory circuit for the maintenance of chloroplast homeostasis under SO2 stress. Exposure to SO2 triggered reactive oxygen species (ROS) generation, accompanied by increases in superoxide dismutase (SOD) activity and the contents of cysteine (Cys), glutathione (GSH) and non-protein thiol (NPT), which maintained cellular redox homeostasis. Together, our results indicated that chloroplast photosynthesis was involved in the plant response to SO2 stress. The photosynthetic responses were related to photosynthetic pigments, photosynthesis gene expression and redox regulation.
DOI: 10.1016/j.ecoenv.2020.111019
PubMed: 32888606
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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High concentrations of SO<sub>2</sub> can induce a series of defensive responses in Arabidopsis plants. However, the role of photosynthesis in the plant response to SO<sub>2</sub> stress is not clear. Here, we report the photosynthetic responses of Arabidopsis plants to SO<sub>2</sub> stress. Exposure to 30 mg/m<sup>3</sup> SO<sub>2</sub> decreased stomatal conductance (Gs) and transpiration rate (Tr) but increased photosynthetic pigments and net photosynthetic rate (Pn). The contents of carbohydrates and sucrose were not altered. The transcript levels of most genes related to photosystem II (PSII), cytochrome b6/f (Cytb6f), photosystem I (PSI) and carbon fixation were upregulated, revealing one important regulatory circuit for the maintenance of chloroplast homeostasis under SO<sub>2</sub> stress. Exposure to SO<sub>2</sub> triggered reactive oxygen species (ROS) generation, accompanied by increases in superoxide dismutase (SOD) activity and the contents of cysteine (Cys), glutathione (GSH) and non-protein thiol (NPT), which maintained cellular redox homeostasis. Together, our results indicated that chloroplast photosynthesis was involved in the plant response to SO<sub>2</sub> stress. The photosynthetic responses were related to photosynthetic pigments, photosynthesis gene expression and redox regulation.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">32888606</PMID><DateCompleted><Year>2020</Year><Month>10</Month><Day>21</Day></DateCompleted><DateRevised><Year>2020</Year><Month>10</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1090-2414</ISSN><JournalIssue CitedMedium="Internet"><Volume>203</Volume><PubDate><Year>2020</Year><Month>Oct</Month><Day>15</Day></PubDate></JournalIssue><Title>Ecotoxicology and environmental safety</Title><ISOAbbreviation>Ecotoxicol Environ Saf</ISOAbbreviation></Journal><ArticleTitle>Photosynthetic responses of Arabidopsis to SO<sub>2</sub> were related to photosynthetic pigments, photosynthesis gene expression and redox regulation.</ArticleTitle><Pagination><MedlinePgn>111019</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S0147-6513(20)30858-7</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.ecoenv.2020.111019</ELocationID><Abstract><AbstractText>Sulfur dioxide (SO<sub>2</sub>) is one of the most common and harmful air pollutants. High concentrations of SO<sub>2</sub> can induce a series of defensive responses in Arabidopsis plants. However, the role of photosynthesis in the plant response to SO<sub>2</sub> stress is not clear. Here, we report the photosynthetic responses of Arabidopsis plants to SO<sub>2</sub> stress. Exposure to 30 mg/m<sup>3</sup> SO<sub>2</sub> decreased stomatal conductance (Gs) and transpiration rate (Tr) but increased photosynthetic pigments and net photosynthetic rate (Pn). The contents of carbohydrates and sucrose were not altered. The transcript levels of most genes related to photosystem II (PSII), cytochrome b6/f (Cytb6f), photosystem I (PSI) and carbon fixation were upregulated, revealing one important regulatory circuit for the maintenance of chloroplast homeostasis under SO<sub>2</sub> stress. Exposure to SO<sub>2</sub> triggered reactive oxygen species (ROS) generation, accompanied by increases in superoxide dismutase (SOD) activity and the contents of cysteine (Cys), glutathione (GSH) and non-protein thiol (NPT), which maintained cellular redox homeostasis. Together, our results indicated that chloroplast photosynthesis was involved in the plant response to SO<sub>2</sub> stress. The photosynthetic responses were related to photosynthetic pigments, photosynthesis gene expression and redox regulation.</AbstractText><CopyrightInformation>Copyright © 2020 Elsevier Inc. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Lijuan</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>School of Life Science, Shanxi University, Taiyuan, 030006, Shanxi Province, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Yi</LastName><ForeName>Huilan</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>School of Life Science, Shanxi University, Taiyuan, 030006, Shanxi Province, China. Electronic address: yihl@sxu.edu.cn.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2020</Year><Month>07</Month><Day>19</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="D000393">Air Pollutants</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D045331">Photosystem I Protein Complex</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D045332">Photosystem II Protein Complex</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010860">Pigments, 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MajorTopicYN="N">Down-Regulation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D015870" MajorTopicYN="N">Gene Expression</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="Y">drug effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018384" MajorTopicYN="N">Oxidative Stress</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="Y">drug effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010788" MajorTopicYN="N">Photosynthesis</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="Y">drug effects</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D045331" MajorTopicYN="N">Photosystem I Protein Complex</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D045332" MajorTopicYN="N">Photosystem II Protein Complex</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010860" MajorTopicYN="N">Pigments, Biological</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013458" MajorTopicYN="N">Sulfur Dioxide</DescriptorName><QualifierName UI="Q000633" MajorTopicYN="Y">toxicity</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D015854" MajorTopicYN="N">Up-Regulation</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Arabidopsis thaliana</Keyword><Keyword MajorTopicYN="N">Defensive responses</Keyword><Keyword MajorTopicYN="N">Photosynthesis</Keyword><Keyword MajorTopicYN="N">SO(2)</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2019</Year><Month>12</Month><Day>11</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2020</Year><Month>07</Month><Day>01</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2020</Year><Month>07</Month><Day>07</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>9</Month><Day>5</Day><Hour>12</Hour><Minute>16</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2020</Year><Month>9</Month><Day>6</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>10</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32888606</ArticleId><ArticleId IdType="pii">S0147-6513(20)30858-7</ArticleId><ArticleId IdType="doi">10.1016/j.ecoenv.2020.111019</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="Li, Lijuan" sort="Li, Lijuan" uniqKey="Li L" first="Lijuan" last="Li">Lijuan Li</name></noRegion><name sortKey="Yi, Huilan" sort="Yi, Huilan" uniqKey="Yi H" first="Huilan" last="Yi">Huilan Yi</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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