The Comparative Photosynthetic Responses of Pinus caribaea var. caribaea and Pinus tropicalis, from Western Cuba

Detalhes bibliográficos
Autor(a) principal: García-Quintana,Yudel
Data de Publicação: 2020
Outros Autores: Arteaga-Crespo,Yasiel, Decker,María de, Vega-Rosete,Sonia, Geada-López,Gretel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Floresta e Ambiente
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872020000100111
Resumo: Abstract This study aimed to evaluate the photosynthetic responses of Pinus caribaea Morelet var. caribaea Barret & Golfari and Pinus tropicalis Morelet in the ecological conditions of Pinar del Río, Cuba. Data were collected in March 2015 using an open system IRGA-porometer LI-6400. The response of both species was measured by increasing concentrations of carbon dioxide and photosynthetically active radiation. Results indicated that under the same environmental conditions, P. caribaea var. caribaea is more productive than P. tropicalis, since P. caribaea var. caribaea, showed higher values of net CO2 assimilation and reaching the CO2 compensation point at 77 μmol mol-1, against the 113 μmol mol-1 registered by P. tropicalis. The species P. caribaea var. caribaea reached light saturation at lower values than P. tropicalis, and showed greater efficiency for the carboxylation of Rubisco. The results indicated that both species perform C3 photosynthetic mechanism.
id UFRJ-3_5649c1bb1eb22e4777d64be0ae834de0
oai_identifier_str oai:scielo:S2179-80872020000100111
network_acronym_str UFRJ-3
network_name_str Floresta e Ambiente
repository_id_str
spelling The Comparative Photosynthetic Responses of Pinus caribaea var. caribaea and Pinus tropicalis, from Western CubaCO2 compensation pointphotosynthesisPinusnet assimilation ratephotosynthetic active radiationAbstract This study aimed to evaluate the photosynthetic responses of Pinus caribaea Morelet var. caribaea Barret & Golfari and Pinus tropicalis Morelet in the ecological conditions of Pinar del Río, Cuba. Data were collected in March 2015 using an open system IRGA-porometer LI-6400. The response of both species was measured by increasing concentrations of carbon dioxide and photosynthetically active radiation. Results indicated that under the same environmental conditions, P. caribaea var. caribaea is more productive than P. tropicalis, since P. caribaea var. caribaea, showed higher values of net CO2 assimilation and reaching the CO2 compensation point at 77 μmol mol-1, against the 113 μmol mol-1 registered by P. tropicalis. The species P. caribaea var. caribaea reached light saturation at lower values than P. tropicalis, and showed greater efficiency for the carboxylation of Rubisco. The results indicated that both species perform C3 photosynthetic mechanism.Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872020000100111Floresta e Ambiente v.27 n.1 2020reponame:Floresta e Ambienteinstname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJ10.1590/2179-8087.038617info:eu-repo/semantics/openAccessGarcía-Quintana,YudelArteaga-Crespo,YasielDecker,María deVega-Rosete,SoniaGeada-López,Greteleng2020-08-31T00:00:00Zoai:scielo:S2179-80872020000100111Revistahttps://www.floram.org/PUBhttps://old.scielo.br/oai/scielo-oai.phpfloramjournal@gmail.com||floram@ufrrj.br||2179-80871415-0980opendoar:2020-08-31T00:00Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.none.fl_str_mv The Comparative Photosynthetic Responses of Pinus caribaea var. caribaea and Pinus tropicalis, from Western Cuba
title The Comparative Photosynthetic Responses of Pinus caribaea var. caribaea and Pinus tropicalis, from Western Cuba
spellingShingle The Comparative Photosynthetic Responses of Pinus caribaea var. caribaea and Pinus tropicalis, from Western Cuba
García-Quintana,Yudel
CO2 compensation point
photosynthesis
Pinus
net assimilation rate
photosynthetic active radiation
title_short The Comparative Photosynthetic Responses of Pinus caribaea var. caribaea and Pinus tropicalis, from Western Cuba
title_full The Comparative Photosynthetic Responses of Pinus caribaea var. caribaea and Pinus tropicalis, from Western Cuba
title_fullStr The Comparative Photosynthetic Responses of Pinus caribaea var. caribaea and Pinus tropicalis, from Western Cuba
title_full_unstemmed The Comparative Photosynthetic Responses of Pinus caribaea var. caribaea and Pinus tropicalis, from Western Cuba
title_sort The Comparative Photosynthetic Responses of Pinus caribaea var. caribaea and Pinus tropicalis, from Western Cuba
author García-Quintana,Yudel
author_facet García-Quintana,Yudel
Arteaga-Crespo,Yasiel
Decker,María de
Vega-Rosete,Sonia
Geada-López,Gretel
author_role author
author2 Arteaga-Crespo,Yasiel
Decker,María de
Vega-Rosete,Sonia
Geada-López,Gretel
author2_role author
author
author
author
dc.contributor.author.fl_str_mv García-Quintana,Yudel
Arteaga-Crespo,Yasiel
Decker,María de
Vega-Rosete,Sonia
Geada-López,Gretel
dc.subject.por.fl_str_mv CO2 compensation point
photosynthesis
Pinus
net assimilation rate
photosynthetic active radiation
topic CO2 compensation point
photosynthesis
Pinus
net assimilation rate
photosynthetic active radiation
description Abstract This study aimed to evaluate the photosynthetic responses of Pinus caribaea Morelet var. caribaea Barret & Golfari and Pinus tropicalis Morelet in the ecological conditions of Pinar del Río, Cuba. Data were collected in March 2015 using an open system IRGA-porometer LI-6400. The response of both species was measured by increasing concentrations of carbon dioxide and photosynthetically active radiation. Results indicated that under the same environmental conditions, P. caribaea var. caribaea is more productive than P. tropicalis, since P. caribaea var. caribaea, showed higher values of net CO2 assimilation and reaching the CO2 compensation point at 77 μmol mol-1, against the 113 μmol mol-1 registered by P. tropicalis. The species P. caribaea var. caribaea reached light saturation at lower values than P. tropicalis, and showed greater efficiency for the carboxylation of Rubisco. The results indicated that both species perform C3 photosynthetic mechanism.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
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=S2179-80872020000100111
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872020000100111
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2179-8087.038617
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 Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
publisher.none.fl_str_mv Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
dc.source.none.fl_str_mv Floresta e Ambiente v.27 n.1 2020
reponame:Floresta e Ambiente
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Floresta e Ambiente
collection Floresta e Ambiente
repository.name.fl_str_mv Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)
repository.mail.fl_str_mv floramjournal@gmail.com||floram@ufrrj.br||
_version_ 1750128143269625856

Registros relacionados