https://wiki.oroboros.at/index.php?title=Chlororespiration&feed=atom&action=historyChlororespiration - Revision history2024-03-28T22:35:13ZRevision history for this page on the wikiMediaWiki 1.36.1https://wiki.oroboros.at/index.php?title=Chlororespiration&diff=220192&oldid=prevGnaiger Erich at 07:42, 11 September 20212021-09-11T07:42:28Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== References ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== References ==</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>::::* Quiles MJ (2006) Stimulation of chlororespiration by heat and high light intensity in oat plants. Plant, Cell and Environment - [[Quiles_2006_Plant_Cell_Environ |»Bioblast link«]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>::::* Quiles MJ (2006) Stimulation of chlororespiration by heat and high light intensity in oat plants. Plant, Cell and Environment<ins style="font-weight: bold; text-decoration: none;">. </ins>- [[Quiles_2006_Plant_Cell_Environ |»Bioblast link«]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>::::* Peltier G, Cournat L (2002) Chlororespiration. Annual Review Plant Biol. - [[Peltier 2002 Ann Rev Plant Biol |»Bioblast link«]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>::::* Peltier G, Cournat L (2002) Chlororespiration. Annual Review Plant Biol. - [[Peltier 2002 Ann Rev Plant Biol |»Bioblast link«]]</div></td></tr>
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</table>Gnaiger Erichhttps://wiki.oroboros.at/index.php?title=Chlororespiration&diff=220191&oldid=prevGnaiger Erich at 07:42, 11 September 20212021-09-11T07:42:07Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|abbr=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|abbr=</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|description='''<del style="font-weight: bold; text-decoration: none;">Chlororespiration</del>''' </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|description=<ins style="font-weight: bold; text-decoration: none;">In </ins>'''<ins style="font-weight: bold; text-decoration: none;">chlororespiration</ins>''' oxygen is consumed by a putative respiratory electron transfer <ins style="font-weight: bold; text-decoration: none;">system </ins>(<ins style="font-weight: bold; text-decoration: none;">ETS</ins>) within the thylakoid membrane of the [[chloroplasts]] and ATP is produced. It is a process that involves the interaction with the photosynthetic <ins style="font-weight: bold; text-decoration: none;">ETS </ins>in which NAD(P)H dehydrogenase transfers electrons to oxygen with the assistance of the photosynthetic <ins style="font-weight: bold; text-decoration: none;">plastoquinone </ins>(PQ), which acts as a non-photochemical redox carrier. Initially described in the unicellular alga ''Chlamydomonas reindhartdii'', chlororespiration was highly disputed for years until the discovery of a NAD(P)H-dehydrogenase (<ins style="font-weight: bold; text-decoration: none;">NDH</ins>) complex (plastidic encoded) and plastid terminal oxidase (PTOX) (nuclear encoded) in higher-plant chloroplasts. PTOX is homologous to the plant mitochondrial alternative oxidase <ins style="font-weight: bold; text-decoration: none;">and </ins>has the role of preventing the over-reduction of the PQ pool while the <ins style="font-weight: bold; text-decoration: none;">NDH </ins>complexes provide a gateway for the electrons to form the <ins style="font-weight: bold; text-decoration: none;">ETS </ins>and consume oxygen. As a result of this process there is a cyclic electron flow around Photosystem I (PSI) that <ins style="font-weight: bold; text-decoration: none;">is </ins>activated under stress conditions acting as a photoprotection mechanism and could be involved in protecting against <ins style="font-weight: bold; text-decoration: none;">oxidative </ins>stress.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">is the phenomenon by which </del>oxygen is consumed by a putative respiratory electron transfer <del style="font-weight: bold; text-decoration: none;">chain </del>(<del style="font-weight: bold; text-decoration: none;">ETC</del>) within the thylakoid membrane of the [[chloroplasts]] and ATP is produced. It is a process that involves the interaction with the photosynthetic <del style="font-weight: bold; text-decoration: none;">ETC </del>in which <del style="font-weight: bold; text-decoration: none;">the </del>NAD(P)H dehydrogenase <del style="font-weight: bold; text-decoration: none;">enzyme </del>transfers electrons to oxygen <del style="font-weight: bold; text-decoration: none;">molecules </del>with the assistance of the photosynthetic <del style="font-weight: bold; text-decoration: none;">Plastoquinone </del>(PQ), which acts as a non-photochemical redox carrier. Initially described in the unicellular alga ''Chlamydomonas reindhartdii'', chlororespiration was highly disputed for years until the discovery of a NAD(P)H-dehydrogenase (<del style="font-weight: bold; text-decoration: none;">Ndh</del>) complex (plastidic encoded) and plastid terminal oxidase (PTOX) (nuclear encoded) in higher-plant chloroplasts. <del style="font-weight: bold; text-decoration: none;">The </del>PTOX<del style="font-weight: bold; text-decoration: none;">, which </del>is homologous to the plant mitochondrial alternative oxidase<del style="font-weight: bold; text-decoration: none;">, </del>has the role of preventing the over-reduction of the PQ pool while the <del style="font-weight: bold; text-decoration: none;">Ndh </del>complexes provide a gateway for the electrons to form the <del style="font-weight: bold; text-decoration: none;">ETC </del>and consume oxygen. As a result of this process there is a cyclic electron flow around <del style="font-weight: bold; text-decoration: none;">the </del>Photosystem I (PSI) that <del style="font-weight: bold; text-decoration: none;">has been reported to be </del>activated under stress conditions acting as a photoprotection mechanism and could be involved in protecting against <del style="font-weight: bold; text-decoration: none;">any other </del>stress <del style="font-weight: bold; text-decoration: none;">that implies the increase of ROS formation</del>.</div></td><td colspan="2"></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== References ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== References ==</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>::::* Quiles MJ (2006) Stimulation of chlororespiration by heat and high light intensity in oat plants. Plant, Cell and Environment - [<del style="font-weight: bold; text-decoration: none;">https://wiki.oroboros.at/index.php/Quiles_Plant_Cell_and_Environment Bioblast link</del>]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>::::* Quiles MJ (2006) Stimulation of chlororespiration by heat and high light intensity in oat plants. Plant, Cell and Environment - [<ins style="font-weight: bold; text-decoration: none;">[Quiles_2006_Plant_Cell_Environ |»Bioblast link«]</ins>]</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>::::* Peltier G, Cournat L (2002) Chlororespiration. Annual <ins style="font-weight: bold; text-decoration: none;">Review Plant Biol. </ins>- [<ins style="font-weight: bold; text-decoration: none;">[Peltier 2002 Ann Rev Plant Biol |»Bioblast link«]</ins>]</div></td></tr>
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</table>Gnaiger Erichhttps://wiki.oroboros.at/index.php?title=Chlororespiration&diff=210761&oldid=prevGnaiger Erich at 11:09, 20 November 20202020-11-20T11:09:05Z<p></p>
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</table>Gnaiger Erichhttps://wiki.oroboros.at/index.php?title=Chlororespiration&diff=210758&oldid=prevGnaiger Erich at 11:07, 20 November 20202020-11-20T11:07:19Z<p></p>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">{{Labeling</del></div></td><td colspan="2"></td></tr>
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</table>Gnaiger Erichhttps://wiki.oroboros.at/index.php?title=Chlororespiration&diff=204432&oldid=prevTindle Lisa at 07:26, 2 July 20202020-07-02T07:26:19Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|description='''Chlororespiration''' </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|description='''Chlororespiration''' </div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>is the phenomenon by which oxygen is consumed by a putative respiratory electron transfer chain (ETC) within the thylakoid membrane of the [[chloroplasts]] and ATP is produced. It is a process that involves the interaction with the photosynthetic ETC in which the NAD(P)H dehydrogenase enzyme transfers electrons to oxygen molecules with the assistance of the photosynthetic Plastoquinone (PQ) which acts as a non-photochemical redox carrier. Initially described <del style="font-weight: bold; text-decoration: none;">for </del>the unicellular alga ''Chlamydomonas reindhartdii'', <del style="font-weight: bold; text-decoration: none;">it </del>was highly disputed <del style="font-weight: bold; text-decoration: none;">during </del>years until the discovery <del style="font-weight: bold; text-decoration: none;">in higher-plant chloroplasts </del>of a NAD(P)H-dehydrogenase (Ndh) complex (plastidic encoded) and plastid terminal oxidase (PTOX) (nuclear encoded) homologous to the plant mitochondrial alternative oxidase<del style="font-weight: bold; text-decoration: none;">. The PTOX would have </del>the role of preventing the over-reduction of the PQ pool while the Ndh complexes <del style="font-weight: bold; text-decoration: none;">would </del>provide a <del style="font-weight: bold; text-decoration: none;">gateaway </del>for the electrons to form the ETC and consume oxygen. As a result of this process there is a cyclic electron flow around the Photosystem I (PSI) that has been reported to be activated under stress conditions acting as a photoprotection mechanism and could be involved in protecting against any other stress that implies the increase of ROS formation.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>is the phenomenon by which oxygen is consumed by a putative respiratory electron transfer chain (ETC) within the thylakoid membrane of the [[chloroplasts]] and ATP is produced. It is a process that involves the interaction with the photosynthetic ETC in which the NAD(P)H dehydrogenase enzyme transfers electrons to oxygen molecules with the assistance of the photosynthetic Plastoquinone (PQ)<ins style="font-weight: bold; text-decoration: none;">, </ins>which acts as a non-photochemical redox carrier. Initially described <ins style="font-weight: bold; text-decoration: none;">in </ins>the unicellular alga ''Chlamydomonas reindhartdii'', <ins style="font-weight: bold; text-decoration: none;">chlororespiration </ins>was highly disputed <ins style="font-weight: bold; text-decoration: none;">for </ins>years until the discovery of a NAD(P)H-dehydrogenase (Ndh) complex (plastidic encoded) and plastid terminal oxidase (PTOX) (nuclear encoded) <ins style="font-weight: bold; text-decoration: none;">in higher-plant chloroplasts. The PTOX, which is </ins>homologous to the plant mitochondrial alternative oxidase<ins style="font-weight: bold; text-decoration: none;">, has </ins>the role of preventing the over-reduction of the PQ pool while the Ndh complexes provide a <ins style="font-weight: bold; text-decoration: none;">gateway </ins>for the electrons to form the ETC and consume oxygen. As a result of this process there is a cyclic electron flow around the Photosystem I (PSI) that has been reported to be activated under stress conditions acting as a photoprotection mechanism and could be involved in protecting against any other stress that implies the increase of ROS formation.</div></td></tr>
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</table>Tindle Lisahttps://wiki.oroboros.at/index.php?title=Chlororespiration&diff=204430&oldid=prevHuete-Ortega Maria at 06:28, 2 July 20202020-07-02T06:28:38Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|description='''Chlororespiration''' </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|description='''Chlororespiration''' </div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>is the phenomenon by which oxygen is consumed by a putative respiratory electron transfer chain (ETC) within the thylakoid membrane of the chloroplasts and ATP is produced. It is a process that involves the interaction with the photosynthetic ETC in which the NAD(P)H dehydrogenase enzyme transfers electrons to oxygen <del style="font-weight: bold; text-decoration: none;">modules </del>with the assistance of the photosynthetic Plastoquinone (PQ) which acts as a non-photochemical redox carrier. Initially described for the unicellular alga ''Chlamydomonas reindhartdii'', it was highly disputed during years until the discovery in higher-plant chloroplasts of a NAD(P)H-dehydrogenase (Ndh) complex (<del style="font-weight: bold; text-decoration: none;">plastdic </del>encoded) and plastid terminal oxidase (PTOX) (nuclear encoded) homologous to the plant mitochondrial alternative oxidase. The PTOX would have the role of preventing the over-reduction of the PQ pool while the Ndh complexes would provide a gateaway for the electrons to form the ETC and consume oxygen. As a result of this process there is a cyclic electron flow around the Photosystem I (PSI) that has been reported to be activated under stress conditions acting as a photoprotection mechanism and could be involved in protecting against any other stress that implies the increase of ROS formation.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>is the phenomenon by which oxygen is consumed by a putative respiratory electron transfer chain (ETC) within the thylakoid membrane of the <ins style="font-weight: bold; text-decoration: none;">[[</ins>chloroplasts<ins style="font-weight: bold; text-decoration: none;">]] </ins>and ATP is produced. It is a process that involves the interaction with the photosynthetic ETC in which the NAD(P)H dehydrogenase enzyme transfers electrons to oxygen <ins style="font-weight: bold; text-decoration: none;">molecules </ins>with the assistance of the photosynthetic Plastoquinone (PQ) which acts as a non-photochemical redox carrier. Initially described for the unicellular alga ''Chlamydomonas reindhartdii'', it was highly disputed during years until the discovery in higher-plant chloroplasts of a NAD(P)H-dehydrogenase (Ndh) complex (<ins style="font-weight: bold; text-decoration: none;">plastidic </ins>encoded) and plastid terminal oxidase (PTOX) (nuclear encoded) homologous to the plant mitochondrial alternative oxidase. The PTOX would have the role of preventing the over-reduction of the PQ pool while the Ndh complexes would provide a gateaway for the electrons to form the ETC and consume oxygen. As a result of this process there is a cyclic electron flow around the Photosystem I (PSI) that has been reported to be activated under stress conditions acting as a photoprotection mechanism and could be involved in protecting against any other stress that implies the increase of ROS formation.</div></td></tr>
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</table>Huete-Ortega Mariahttps://wiki.oroboros.at/index.php?title=Chlororespiration&diff=204333&oldid=prevHuete-Ortega Maria at 09:27, 30 June 20202020-06-30T09:27:27Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|description='''Chlororespiration''' </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|description='''Chlororespiration''' </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>is the phenomenon by which oxygen is consumed by a putative respiratory electron transfer chain (ETC) within the thylakoid membrane of the chloroplasts and ATP is produced. It is a process that involves the interaction with the photosynthetic ETC in which the NAD(P)H dehydrogenase enzyme transfers electrons to oxygen modules with the assistance of the photosynthetic Plastoquinone (PQ) which acts as a non-photochemical redox carrier. Initially described for the unicellular alga ''Chlamydomonas reindhartdii'', it was highly disputed during years until the discovery in higher-plant chloroplasts of a NAD(P)H-dehydrogenase (Ndh) complex (plastdic encoded) and plastid terminal oxidase (PTOX) (nuclear encoded) homologous to the plant mitochondrial alternative oxidase. The PTOX would have the role of preventing the over-reduction of the PQ pool while the Ndh complexes would provide a gateaway for the electrons to form the ETC and consume oxygen. As a result of this process there is a cyclic electron flow around the Photosystem I (PSI) that has been reported to be activated under stress conditions acting as a photoprotection mechanism and could be involved in protecting against any other stress that implies the increase of ROS formation.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>is the phenomenon by which oxygen is consumed by a putative respiratory electron transfer chain (ETC) within the thylakoid membrane of the chloroplasts and ATP is produced. It is a process that involves the interaction with the photosynthetic ETC in which the NAD(P)H dehydrogenase enzyme transfers electrons to oxygen modules with the assistance of the photosynthetic Plastoquinone (PQ) which acts as a non-photochemical redox carrier. Initially described for the unicellular alga ''Chlamydomonas reindhartdii'', it was highly disputed during years until the discovery in higher-plant chloroplasts of a NAD(P)H-dehydrogenase (Ndh) complex (plastdic encoded) and plastid terminal oxidase (PTOX) (nuclear encoded) homologous to the plant mitochondrial alternative oxidase. The PTOX would have the role of preventing the over-reduction of the PQ pool while the Ndh complexes would provide a gateaway for the electrons to form the ETC and consume oxygen. As a result of this process there is a cyclic electron flow around the Photosystem I (PSI) that has been reported to be activated under stress conditions acting as a photoprotection mechanism and could be involved in protecting against any other stress that implies the increase of ROS formation.</div></td></tr>
</table>Huete-Ortega Mariahttps://wiki.oroboros.at/index.php?title=Chlororespiration&diff=204332&oldid=prevHuete-Ortega Maria: Created page with "{{MitoPedia |abbr=PB |description='''Chlororespiration''' is the phenomenon by which oxygen is consumed by a putative respiratory electron transfer chain (ETC) within the thy..."2020-06-30T09:27:16Z<p>Created page with "{{MitoPedia |abbr=PB |description='''Chlororespiration''' is the phenomenon by which oxygen is consumed by a putative respiratory electron transfer chain (ETC) within the thy..."</p>
<p><b>New page</b></p><div>{{MitoPedia<br />
|abbr=PB<br />
|description='''Chlororespiration''' <br />
is the phenomenon by which oxygen is consumed by a putative respiratory electron transfer chain (ETC) within the thylakoid membrane of the chloroplasts and ATP is produced. It is a process that involves the interaction with the photosynthetic ETC in which the NAD(P)H dehydrogenase enzyme transfers electrons to oxygen modules with the assistance of the photosynthetic Plastoquinone (PQ) which acts as a non-photochemical redox carrier. Initially described for the unicellular alga ''Chlamydomonas reindhartdii'', it was highly disputed during years until the discovery in higher-plant chloroplasts of a NAD(P)H-dehydrogenase (Ndh) complex (plastdic encoded) and plastid terminal oxidase (PTOX) (nuclear encoded) homologous to the plant mitochondrial alternative oxidase. The PTOX would have the role of preventing the over-reduction of the PQ pool while the Ndh complexes would provide a gateaway for the electrons to form the ETC and consume oxygen. As a result of this process there is a cyclic electron flow around the Photosystem I (PSI) that has been reported to be activated under stress conditions acting as a photoprotection mechanism and could be involved in protecting against any other stress that implies the increase of ROS formation.<br />
}}<br />
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Communicated by [[Huete-Ortega M]] 2020-06-30<br />
<br />
== References ==<br />
::::* Quiles MJ (2006) Stimulation of chlororespiration by heat and high light intensity in oat plants. Plant, Cell and Environment - [https://wiki.oroboros.at/index.php/Quiles_Plant_Cell_and_Environment Bioblast link]<br />
<br />
::::* Peltier G, Cournat L (2002) Chlororespiration. Annual review of plant biology - [https://wiki.oroboros.at/index.php/Peltier_G_Annual_Review_of_plant_biology Bioblast link]<br />
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{{NextGen-O2k}}<br />
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{{Labeling<br />
|additional=MitoPedia:NextGen-O2k<br />
}}</div>Huete-Ortega Maria