Photosynthetic induction and activity of enzymes related to carbon metabolism: insights into the varying net photosynthesis rates of coffee sun and shade leaves
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Theoretical and Experimental Plant Physiology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2197-00252013000100008 |
Resumo: | The shade leaves of coffee (Coffea arabica L.) apparently retain a robust photosynthetic machinery that is comparable to that of sun leaves and can fix CO2 at high rates when subjected to high light intensities. This raises the question of why the coffee plant would construct such a robust photosynthetic machinery despite the low photosynthetic rates achieved by the shade leaves at low light supply. Here, we grew coffee plants at 100% or 10% full sunlight and demonstrated that the shade leaves exhibited faster photosynthetic induction compared with their sun counterparts, in parallel with lower loss of induction states under dim light, and were well protected against short-term sudden increases in light supply (mimicking sunflecks). These findings were linked to similar photosynthetic capacities on a per mass basis (assessed under nonlimiting light), as well as similar extractable activities of some enzymes of the Calvin cycle, including Rubisco, when comparing the shade and sun leaves. On the one hand, these responses might represent an overinvestment of resources given the low photosynthetic rates of the shade leaves when light is limiting; on the other hand, such responses might be associated with a conservative behavior linked to the origin of the species as a shade-dwelling plant, allowing it to maximize the use of the energy from sunflecks and thus ultimately contributing to a positive carbon balance under conditions of intense shading. |
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Theoretical and Experimental Plant Physiology |
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Photosynthetic induction and activity of enzymes related to carbon metabolism: insights into the varying net photosynthesis rates of coffee sun and shade leavesCoffeaphotosynthesisphotosynthetic induction kineticssun/shade tolerancesunflecksThe shade leaves of coffee (Coffea arabica L.) apparently retain a robust photosynthetic machinery that is comparable to that of sun leaves and can fix CO2 at high rates when subjected to high light intensities. This raises the question of why the coffee plant would construct such a robust photosynthetic machinery despite the low photosynthetic rates achieved by the shade leaves at low light supply. Here, we grew coffee plants at 100% or 10% full sunlight and demonstrated that the shade leaves exhibited faster photosynthetic induction compared with their sun counterparts, in parallel with lower loss of induction states under dim light, and were well protected against short-term sudden increases in light supply (mimicking sunflecks). These findings were linked to similar photosynthetic capacities on a per mass basis (assessed under nonlimiting light), as well as similar extractable activities of some enzymes of the Calvin cycle, including Rubisco, when comparing the shade and sun leaves. On the one hand, these responses might represent an overinvestment of resources given the low photosynthetic rates of the shade leaves when light is limiting; on the other hand, such responses might be associated with a conservative behavior linked to the origin of the species as a shade-dwelling plant, allowing it to maximize the use of the energy from sunflecks and thus ultimately contributing to a positive carbon balance under conditions of intense shading.Sociedade Brasileira de Fisiologia Vegetal2013-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2197-00252013000100008Theoretical and Experimental Plant Physiology v.25 n.1 2013reponame:Theoretical and Experimental Plant Physiologyinstname:Sociedade Brasileira de Fisiologia Vegetal (SBFV)instacron:SBFV10.1590/S2197-00252013000100008info:eu-repo/semantics/openAccessMartins,Samuel Cordeiro VitorDetmann,Kelly CoutinhoReis,Josimar Vieira dosPereira,Lucas FelisbertoSanglard,Lílian Maria Vincis PereiraRogalski,MarceloDaMatta,Fábio Muriloeng2015-06-23T00:00:00Zoai:scielo:S2197-00252013000100008Revistahttps://www.springer.com/journal/40626ONGhttps://old.scielo.br/oai/scielo-oai.php||bjpp.sbfv@gmail.com2197-00252197-0025opendoar:2015-06-23T00:00Theoretical and Experimental Plant Physiology - Sociedade Brasileira de Fisiologia Vegetal (SBFV)false |
dc.title.none.fl_str_mv |
Photosynthetic induction and activity of enzymes related to carbon metabolism: insights into the varying net photosynthesis rates of coffee sun and shade leaves |
title |
Photosynthetic induction and activity of enzymes related to carbon metabolism: insights into the varying net photosynthesis rates of coffee sun and shade leaves |
spellingShingle |
Photosynthetic induction and activity of enzymes related to carbon metabolism: insights into the varying net photosynthesis rates of coffee sun and shade leaves Martins,Samuel Cordeiro Vitor Coffea photosynthesis photosynthetic induction kinetics sun/shade tolerance sunflecks |
title_short |
Photosynthetic induction and activity of enzymes related to carbon metabolism: insights into the varying net photosynthesis rates of coffee sun and shade leaves |
title_full |
Photosynthetic induction and activity of enzymes related to carbon metabolism: insights into the varying net photosynthesis rates of coffee sun and shade leaves |
title_fullStr |
Photosynthetic induction and activity of enzymes related to carbon metabolism: insights into the varying net photosynthesis rates of coffee sun and shade leaves |
title_full_unstemmed |
Photosynthetic induction and activity of enzymes related to carbon metabolism: insights into the varying net photosynthesis rates of coffee sun and shade leaves |
title_sort |
Photosynthetic induction and activity of enzymes related to carbon metabolism: insights into the varying net photosynthesis rates of coffee sun and shade leaves |
author |
Martins,Samuel Cordeiro Vitor |
author_facet |
Martins,Samuel Cordeiro Vitor Detmann,Kelly Coutinho Reis,Josimar Vieira dos Pereira,Lucas Felisberto Sanglard,Lílian Maria Vincis Pereira Rogalski,Marcelo DaMatta,Fábio Murilo |
author_role |
author |
author2 |
Detmann,Kelly Coutinho Reis,Josimar Vieira dos Pereira,Lucas Felisberto Sanglard,Lílian Maria Vincis Pereira Rogalski,Marcelo DaMatta,Fábio Murilo |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Martins,Samuel Cordeiro Vitor Detmann,Kelly Coutinho Reis,Josimar Vieira dos Pereira,Lucas Felisberto Sanglard,Lílian Maria Vincis Pereira Rogalski,Marcelo DaMatta,Fábio Murilo |
dc.subject.por.fl_str_mv |
Coffea photosynthesis photosynthetic induction kinetics sun/shade tolerance sunflecks |
topic |
Coffea photosynthesis photosynthetic induction kinetics sun/shade tolerance sunflecks |
description |
The shade leaves of coffee (Coffea arabica L.) apparently retain a robust photosynthetic machinery that is comparable to that of sun leaves and can fix CO2 at high rates when subjected to high light intensities. This raises the question of why the coffee plant would construct such a robust photosynthetic machinery despite the low photosynthetic rates achieved by the shade leaves at low light supply. Here, we grew coffee plants at 100% or 10% full sunlight and demonstrated that the shade leaves exhibited faster photosynthetic induction compared with their sun counterparts, in parallel with lower loss of induction states under dim light, and were well protected against short-term sudden increases in light supply (mimicking sunflecks). These findings were linked to similar photosynthetic capacities on a per mass basis (assessed under nonlimiting light), as well as similar extractable activities of some enzymes of the Calvin cycle, including Rubisco, when comparing the shade and sun leaves. On the one hand, these responses might represent an overinvestment of resources given the low photosynthetic rates of the shade leaves when light is limiting; on the other hand, such responses might be associated with a conservative behavior linked to the origin of the species as a shade-dwelling plant, allowing it to maximize the use of the energy from sunflecks and thus ultimately contributing to a positive carbon balance under conditions of intense shading. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2197-00252013000100008 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2197-00252013000100008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S2197-00252013000100008 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Fisiologia Vegetal |
publisher.none.fl_str_mv |
Sociedade Brasileira de Fisiologia Vegetal |
dc.source.none.fl_str_mv |
Theoretical and Experimental Plant Physiology v.25 n.1 2013 reponame:Theoretical and Experimental Plant Physiology instname:Sociedade Brasileira de Fisiologia Vegetal (SBFV) instacron:SBFV |
instname_str |
Sociedade Brasileira de Fisiologia Vegetal (SBFV) |
instacron_str |
SBFV |
institution |
SBFV |
reponame_str |
Theoretical and Experimental Plant Physiology |
collection |
Theoretical and Experimental Plant Physiology |
repository.name.fl_str_mv |
Theoretical and Experimental Plant Physiology - Sociedade Brasileira de Fisiologia Vegetal (SBFV) |
repository.mail.fl_str_mv |
||bjpp.sbfv@gmail.com |
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1754824595229114368 |