Isoprene and nitric oxide reduce damages in leaves exposed to oxidative stress.
Identifieur interne : 003881 ( Main/Exploration ); précédent : 003880; suivant : 003882Isoprene and nitric oxide reduce damages in leaves exposed to oxidative stress.
Auteurs : Violeta Velikova [Bulgarie] ; Silvano Fares ; Francesco LoretoSource :
- Plant, cell & environment [ 1365-3040 ] ; 2008.
Descripteurs français
- KwdFr :
- Butadiènes (métabolisme), Composés organiques volatils (métabolisme), Feuilles de plante (effets des médicaments et des substances chimiques), Feuilles de plante (métabolisme), Fosfomycine (analogues et dérivés), Fosfomycine (pharmacologie), Hémiterpènes (métabolisme), Monoxyde d'azote (métabolisme), Monoxyde d'azote (pharmacologie), Ozone (pharmacologie), Pentanes (métabolisme), Photosensibilisants (pharmacologie), Poaceae (effets des médicaments et des substances chimiques), Poaceae (métabolisme), Populus (effets des médicaments et des substances chimiques), Populus (métabolisme), Stomates de plante (effets des médicaments et des substances chimiques), Stomates de plante (métabolisme), Stress oxydatif (MeSH).
- MESH :
- analogues et dérivés : Fosfomycine.
- effets des médicaments et des substances chimiques : Feuilles de plante, Poaceae, Populus, Stomates de plante.
- métabolisme : Butadiènes, Composés organiques volatils, Feuilles de plante, Hémiterpènes, Monoxyde d'azote, Pentanes, Poaceae, Populus, Stomates de plante.
- pharmacologie : Fosfomycine, Monoxyde d'azote, Ozone, Photosensibilisants.
- Stress oxydatif.
English descriptors
- KwdEn :
- Butadienes (metabolism), Fosfomycin (analogs & derivatives), Fosfomycin (pharmacology), Hemiterpenes (metabolism), Nitric Oxide (metabolism), Nitric Oxide (pharmacology), Oxidative Stress (MeSH), Ozone (pharmacology), Pentanes (metabolism), Photosensitizing Agents (pharmacology), Plant Leaves (drug effects), Plant Leaves (metabolism), Plant Stomata (drug effects), Plant Stomata (metabolism), Poaceae (drug effects), Poaceae (metabolism), Populus (drug effects), Populus (metabolism), Volatile Organic Compounds (metabolism).
- MESH :
- chemical , analogs & derivatives : Fosfomycin.
- chemical , metabolism : Butadienes, Hemiterpenes, Nitric Oxide, Pentanes, Volatile Organic Compounds.
- chemical , pharmacology : Fosfomycin, Nitric Oxide, Ozone, Photosensitizing Agents.
- drug effects : Plant Leaves, Plant Stomata, Poaceae, Populus.
- metabolism : Plant Leaves, Plant Stomata, Poaceae, Populus.
- Oxidative Stress.
Abstract
Isoprene and nitric oxide (NO) are two volatile molecules that are produced in leaves. Both compounds were suggested to have an important protective role against stresses. We tested, in two isoprene-emitting species, Populus nigra and Phragmites australis, whether: (1) NO emission outside leaves is measurable and is affected by oxidative stresses; and (2) isoprene and NO protect leaves against oxidative stresses, both singularly and in combination. The emission of NO was undetectable, and the compensation point was very low in control poplar leaves. Both emission and compensation point increased dramatically in stressed leaves. NO emission was inversely associated with stomatal conductance. More NO was emitted in leaves that were isoprene-inhibited, and more isoprene was emitted when NO was reduced by NO scavenger c-PTIO. Both isoprene and NO reduced oxidative damages. Isoprene-emitting leaves which were also fumigated with NO, or treated with NO donor, showed low damage to photosynthesis, a reduced accumulation of H(2)O(2) and a reduced membrane denaturation. We conclude that measurable amounts of NO are only produced and emitted by stressed leaves, that both isoprene and NO are effective antioxidant molecules and that an additional protection is achieved when both molecules are released.
DOI: 10.1111/j.1365-3040.2008.01893.x
PubMed: 18811730
Affiliations:
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Both compounds were suggested to have an important protective role against stresses. We tested, in two isoprene-emitting species, Populus nigra and Phragmites australis, whether: (1) NO emission outside leaves is measurable and is affected by oxidative stresses; and (2) isoprene and NO protect leaves against oxidative stresses, both singularly and in combination. The emission of NO was undetectable, and the compensation point was very low in control poplar leaves. Both emission and compensation point increased dramatically in stressed leaves. NO emission was inversely associated with stomatal conductance. More NO was emitted in leaves that were isoprene-inhibited, and more isoprene was emitted when NO was reduced by NO scavenger c-PTIO. Both isoprene and NO reduced oxidative damages. Isoprene-emitting leaves which were also fumigated with NO, or treated with NO donor, showed low damage to photosynthesis, a reduced accumulation of H(2)O(2) and a reduced membrane denaturation. We conclude that measurable amounts of NO are only produced and emitted by stressed leaves, that both isoprene and NO are effective antioxidant molecules and that an additional protection is achieved when both molecules are released.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">18811730</PMID><DateCompleted><Year>2008</Year><Month>12</Month><Day>31</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-3040</ISSN><JournalIssue CitedMedium="Internet"><Volume>31</Volume><Issue>12</Issue><PubDate><Year>2008</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Plant, cell & environment</Title><ISOAbbreviation>Plant Cell Environ</ISOAbbreviation></Journal><ArticleTitle>Isoprene and nitric oxide reduce damages in leaves exposed to oxidative stress.</ArticleTitle><Pagination><MedlinePgn>1882-94</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-3040.2008.01893.x</ELocationID><Abstract><AbstractText>Isoprene and nitric oxide (NO) are two volatile molecules that are produced in leaves. Both compounds were suggested to have an important protective role against stresses. We tested, in two isoprene-emitting species, Populus nigra and Phragmites australis, whether: (1) NO emission outside leaves is measurable and is affected by oxidative stresses; and (2) isoprene and NO protect leaves against oxidative stresses, both singularly and in combination. The emission of NO was undetectable, and the compensation point was very low in control poplar leaves. Both emission and compensation point increased dramatically in stressed leaves. NO emission was inversely associated with stomatal conductance. More NO was emitted in leaves that were isoprene-inhibited, and more isoprene was emitted when NO was reduced by NO scavenger c-PTIO. Both isoprene and NO reduced oxidative damages. Isoprene-emitting leaves which were also fumigated with NO, or treated with NO donor, showed low damage to photosynthesis, a reduced accumulation of H(2)O(2) and a reduced membrane denaturation. We conclude that measurable amounts of NO are only produced and emitted by stressed leaves, that both isoprene and NO are effective antioxidant molecules and that an additional protection is achieved when both molecules are released.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Velikova</LastName><ForeName>Violeta</ForeName><Initials>V</Initials><AffiliationInfo><Affiliation>Bulgarian Academy of Sciences - Institute of Plant Physiology, Sofia, Bulgaria.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fares</LastName><ForeName>Silvano</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Loreto</LastName><ForeName>Francesco</ForeName><Initials>F</Initials></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>2008</Year><Month>09</Month><Day>22</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Cell Environ</MedlineTA><NlmUniqueID>9309004</NlmUniqueID><ISSNLinking>0140-7791</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D002070">Butadienes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D045782">Hemiterpenes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010420">Pentanes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D017319">Photosensitizing Agents</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D055549">Volatile Organic Compounds</NameOfSubstance></Chemical><Chemical><RegistryNumber>0A62964IBU</RegistryNumber><NameOfSubstance 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MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D045782" MajorTopicYN="N">Hemiterpenes</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009569" MajorTopicYN="N">Nitric Oxide</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018384" MajorTopicYN="Y">Oxidative Stress</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010126" MajorTopicYN="N">Ozone</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010420" MajorTopicYN="N">Pentanes</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017319" MajorTopicYN="N">Photosensitizing Agents</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D054046" MajorTopicYN="N">Plant Stomata</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006109" MajorTopicYN="N">Poaceae</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D055549" MajorTopicYN="N">Volatile Organic Compounds</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2008</Year><Month>9</Month><Day>25</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2008</Year><Month>9</Month><Day>25</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2009</Year><Month>1</Month><Day>1</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">18811730</ArticleId><ArticleId IdType="pii">PCE1893</ArticleId><ArticleId IdType="doi">10.1111/j.1365-3040.2008.01893.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Bulgarie</li></country><region><li>Sofia-ville (oblast)</li></region><settlement><li>Sofia</li></settlement></list><tree><noCountry><name sortKey="Fares, Silvano" sort="Fares, Silvano" uniqKey="Fares S" first="Silvano" last="Fares">Silvano Fares</name><name sortKey="Loreto, Francesco" sort="Loreto, Francesco" uniqKey="Loreto F" first="Francesco" last="Loreto">Francesco Loreto</name></noCountry><country name="Bulgarie"><region name="Sofia-ville (oblast)"><name sortKey="Velikova, Violeta" sort="Velikova, Violeta" uniqKey="Velikova V" first="Violeta" last="Velikova">Violeta Velikova</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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