Optimising the linear electron transport rate measured by chlorophyll a fluorescence to empirically match the gross rate of oxygen evolution in white light: towards improved estimation of the cyclic electron flux around photosystem I in leaves.
Identifieur interne : 000D62 ( Main/Exploration ); précédent : 000D61; suivant : 000D63Optimising the linear electron transport rate measured by chlorophyll a fluorescence to empirically match the gross rate of oxygen evolution in white light: towards improved estimation of the cyclic electron flux around photosystem I in leaves.
Auteurs : Meng-Meng Zhang [République populaire de Chine] ; Da-Yong Fan [Australie] ; Guang-Yu Sun [République populaire de Chine] ; Wah Soon Chow [Australie]Source :
- Functional plant biology : FPB [ 1445-4416 ] ; 2018.
Abstract
The cyclic electron flux (CEF) around photosystem I (PSI) was discovered in isolated chloroplasts more than six decades ago, but its quantification has been hampered by the absence of net formation of a product or net consumption of a substrate. We estimated in vivo CEF in leaves as the difference (ΔFlux) between the total electron flux through PSI (ETR1) measured by a near infrared signal, and the linear electron flux through both photosystems by optimised measurement of chlorophyll a fluorescence (LEFfl). Chlorophyll fluorescence was excited by modulated green light from a light-emitting diode at an optimal average irradiance, and the fluorescence was detected at wavelengths >710nm. In this way, LEFfl matched the gross rate of oxygen evolution multiplied by 4 (LEFO2) in broad-spectrum white actinic irradiance up to half (spinach, poplar and rice) or one third (cotton) of full sunlight irradiance. This technique of estimating CEF can be applied to leaves attached to a plant.
DOI: 10.1071/FP18039
PubMed: 32290975
Affiliations:
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Da Yong" uniqKey="Fan D" first="Da-Yong" last="Fan">Da-Yong Fan</name><affiliation wicri:level="1"><nlm:affiliation>Division of Plant Sciences, Research School of Biology, The Australian National University, Acton, ACT 2601, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Division of Plant Sciences, Research School of Biology, The Australian National University, Acton, ACT 2601</wicri:regionArea><wicri:noRegion>ACT 2601</wicri:noRegion></affiliation></author><author><name sortKey="Sun, Guang Yu" sort="Sun, Guang Yu" uniqKey="Sun G" first="Guang-Yu" last="Sun">Guang-Yu Sun</name><affiliation wicri:level="1"><nlm:affiliation>College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, 150040, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, 150040</wicri:regionArea><wicri:noRegion>150040</wicri:noRegion></affiliation></author><author><name sortKey="Chow, Wah Soon" sort="Chow, Wah Soon" uniqKey="Chow W" first="Wah Soon" last="Chow">Wah Soon Chow</name><affiliation wicri:level="1"><nlm:affiliation>Division of Plant Sciences, Research School of Biology, The Australian National University, Acton, ACT 2601, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Division of Plant Sciences, Research School of Biology, The Australian National University, Acton, ACT 2601</wicri:regionArea><wicri:noRegion>ACT 2601</wicri:noRegion></affiliation></author></analytic><series><title level="j">Functional plant biology : FPB</title><idno type="eISSN">1445-4416</idno><imprint><date when="2018" type="published">2018</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The cyclic electron flux (CEF) around photosystem I (PSI) was discovered in isolated chloroplasts more than six decades ago, but its quantification has been hampered by the absence of net formation of a product or net consumption of a substrate. We estimated in vivo CEF in leaves as the difference (ΔFlux) between the total electron flux through PSI (ETR1) measured by a near infrared signal, and the linear electron flux through both photosystems by optimised measurement of chlorophyll a fluorescence (LEFfl). Chlorophyll fluorescence was excited by modulated green light from a light-emitting diode at an optimal average irradiance, and the fluorescence was detected at wavelengths >710nm. In this way, LEFfl matched the gross rate of oxygen evolution multiplied by 4 (LEFO2) in broad-spectrum white actinic irradiance up to half (spinach, poplar and rice) or one third (cotton) of full sunlight irradiance. This technique of estimating CEF can be applied to leaves attached to a plant.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">32290975</PMID><DateRevised><Year>2020</Year><Month>04</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1445-4416</ISSN><JournalIssue CitedMedium="Internet"><Volume>45</Volume><Issue>11</Issue><PubDate><Year>2018</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Functional plant biology : FPB</Title><ISOAbbreviation>Funct Plant Biol</ISOAbbreviation></Journal><ArticleTitle>Optimising the linear electron transport rate measured by chlorophyll a fluorescence to empirically match the gross rate of oxygen evolution in white light: towards improved estimation of the cyclic electron flux around photosystem I in leaves.</ArticleTitle><Pagination><MedlinePgn>1138-1148</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1071/FP18039</ELocationID><Abstract><AbstractText>The cyclic electron flux (CEF) around photosystem I (PSI) was discovered in isolated chloroplasts more than six decades ago, but its quantification has been hampered by the absence of net formation of a product or net consumption of a substrate. We estimated in vivo CEF in leaves as the difference (ΔFlux) between the total electron flux through PSI (ETR1) measured by a near infrared signal, and the linear electron flux through both photosystems by optimised measurement of chlorophyll a fluorescence (LEFfl). Chlorophyll fluorescence was excited by modulated green light from a light-emitting diode at an optimal average irradiance, and the fluorescence was detected at wavelengths >710nm. In this way, LEFfl matched the gross rate of oxygen evolution multiplied by 4 (LEFO2) in broad-spectrum white actinic irradiance up to half (spinach, poplar and rice) or one third (cotton) of full sunlight irradiance. This technique of estimating CEF can be applied to leaves attached to a plant.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Zhang</LastName><ForeName>Meng-Meng</ForeName><Initials>MM</Initials><AffiliationInfo><Affiliation>College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, 150040, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fan</LastName><ForeName>Da-Yong</ForeName><Initials>DY</Initials><AffiliationInfo><Affiliation>Division of Plant Sciences, Research School of Biology, The Australian National University, Acton, ACT 2601, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Sun</LastName><ForeName>Guang-Yu</ForeName><Initials>GY</Initials><AffiliationInfo><Affiliation>College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, 150040, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Chow</LastName><ForeName>Wah Soon</ForeName><Initials>WS</Initials><AffiliationInfo><Affiliation>Division of Plant Sciences, Research School of Biology, The Australian National University, Acton, ACT 2601, Australia.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Australia</Country><MedlineTA>Funct Plant Biol</MedlineTA><NlmUniqueID>101154361</NlmUniqueID><ISSNLinking>1445-4416</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2018</Year><Month>02</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2018</Year><Month>05</Month><Day>25</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>4</Month><Day>16</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2018</Year><Month>10</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2018</Year><Month>10</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32290975</ArticleId><ArticleId IdType="pii">FP18039</ArticleId><ArticleId IdType="doi">10.1071/FP18039</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Australie</li><li>République populaire de Chine</li></country></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Zhang, Meng Meng" sort="Zhang, Meng Meng" uniqKey="Zhang M" first="Meng-Meng" last="Zhang">Meng-Meng Zhang</name></noRegion><name sortKey="Sun, Guang Yu" sort="Sun, Guang Yu" uniqKey="Sun G" first="Guang-Yu" last="Sun">Guang-Yu Sun</name></country><country name="Australie"><noRegion><name sortKey="Fan, Da Yong" sort="Fan, Da Yong" uniqKey="Fan D" first="Da-Yong" last="Fan">Da-Yong Fan</name></noRegion><name sortKey="Chow, Wah Soon" sort="Chow, Wah Soon" uniqKey="Chow W" first="Wah Soon" last="Chow">Wah Soon Chow</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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