Gas exchanges and photosynthetic efficiency in sub-forest species from Atlantic Forest

Detalhes bibliográficos
Autor(a) principal: Alves, Magnólia Martins
Data de Publicação: 2020
Outros Autores: Albuquerque, Manoel Bandeira de, Cruz, Renata Ranielly Pedroza, Cavalcanti, Mário Luiz Farias
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/2870
Resumo: The availability of light is one of the factors that most limits the photosynthesis of juvenile trees in the understory of the forest. The study was carried out in the Mata do Pau-Ferro State Park, located in the city of Areia, PB. The objective of this study was to evaluate how gas exchanges occur in individuals of Psychotria colorata (Willd. Ex Roem & Schult.), Senna georgica Irwin & Barneby, Himatanthus phagedaenicus (Mart.) Woodson, Solanum swartzianum Roem. & Schult, Psychotria carthagenensis Jacq.e Psychotria hoffmannseggiana (Willd. ex Schult.) in the understory of a remnant of Mata Atlântica. The rate of photosynthesis (A), transpiration (E), stomatal conductance (Gs), internal CO2 concentration (Ci) leaf temperature-air temperature (°C), and internal carbon (Ci), instantaneous efficiency of water use (EUA) (A/E), Intrinsic efficiency of water use (EiUC) (A/Gs) and the intrinsic efficiency of carboxylation (ratio A/Ci). The rates of maximum photosynthesis (A), photosynthesis (E) and stomatal conductance (Gs) were shown to be influenced by the time of day, as there was no interference of external factors in the diurnal patterns of gas exchange, variations are due to endogenous factors, probably due to the circadian rhythm. The parameter of the gas exchange of sub-forest species responds differently, in the small variations in the luminosity levels of the forest understory
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spelling Gas exchanges and photosynthetic efficiency in sub-forest species from Atlantic ForestIntercambios de gases y eficiencia fotosintética en especies de sotobosque en el Bosque AtlánticoTrocas gasosas e eficiência fotossintética em espécies de sub-bosque em Mata AtlânticaCaracterísticas fotosintéticasVariación diurnaTasas de carboxilación.Características fotossintéticasVariação diurnaTaxas de carboxilação.Photosynthetic characteristicsDiurnal variationCarboxylation rate.The availability of light is one of the factors that most limits the photosynthesis of juvenile trees in the understory of the forest. The study was carried out in the Mata do Pau-Ferro State Park, located in the city of Areia, PB. The objective of this study was to evaluate how gas exchanges occur in individuals of Psychotria colorata (Willd. Ex Roem & Schult.), Senna georgica Irwin & Barneby, Himatanthus phagedaenicus (Mart.) Woodson, Solanum swartzianum Roem. & Schult, Psychotria carthagenensis Jacq.e Psychotria hoffmannseggiana (Willd. ex Schult.) in the understory of a remnant of Mata Atlântica. The rate of photosynthesis (A), transpiration (E), stomatal conductance (Gs), internal CO2 concentration (Ci) leaf temperature-air temperature (°C), and internal carbon (Ci), instantaneous efficiency of water use (EUA) (A/E), Intrinsic efficiency of water use (EiUC) (A/Gs) and the intrinsic efficiency of carboxylation (ratio A/Ci). The rates of maximum photosynthesis (A), photosynthesis (E) and stomatal conductance (Gs) were shown to be influenced by the time of day, as there was no interference of external factors in the diurnal patterns of gas exchange, variations are due to endogenous factors, probably due to the circadian rhythm. The parameter of the gas exchange of sub-forest species responds differently, in the small variations in the luminosity levels of the forest understoryLa disponibilidad de luz es uno de los factores que más limitan la fotosíntesis de árboles jóvenes en el sotobosque. El estudio se realizó en el Parque Estatal Mata do Pau-Ferro, ubicado en la ciudad de Areia, PB. El objetivo de este estudio fue evaluar cómo se produce el intercambio de gases en individuos de Psychotria colorata (Willd. Ex Roem & Schult.), Senna georgica Irwin & Barneby, Himatanthus phagedaenicus (Mart.) Woodson, Solanum swartzianum Roem. & Schult, Psychotria carthagenensis Jacq. e Psychotria hoffmannseggiana (Willd. Ex Schult.). La tasa de fotosíntesis (A), transpiración (E), conductancia estomática (Gs), concentración interna de CO2 (Ci) temperatura de la hoja a temperatura del aire (°C) y carbono interno (Ci), eficiencia instantánea del uso del agua (EUA) (A/E), eficiencia de uso intrínseco del agua (EiUC) (A/Gs) y eficiencia de carboxilación intrínseca (relación A / Ci). Las tasas de fotosíntesis máxima (A), fotosíntesis (E) y conductancia estomática (Gs) fueron influenciadas por la hora del día, ya que no hubo interferencia de factores externos en los patrones diurnos de intercambio de gases; factores endógenos, probablemente debido al ritmo circadiano. El parámetro de intercambio de gases de las especies sub-forestales responde de manera diferente, en las pequeñas variaciones en los niveles de luz del sotobosque.A disponibilidade de luz é um dos fatores que mais limitam a fotossíntese de árvores juvenis no sub-bosque. O estudo foi realizado no Parque Estadual Mata do Pau-Ferro, localizado na cidade de Areia, PB. O objetivo deste estudo foi avaliar como ocorrem as trocas gasosas em indivíduos de Psychotria colorata (Willd. Ex Roem & Schult.), Senna georgica Irwin & Barneby, Himatanthus phagedaenicus (Mart.) Woodson, Solanum swartzianum Roem. & Schult, Psychotria carthagenensis Jacq.e Psychotria hoffmannseggiana (Willd. Ex Schult.). A taxa de fotossíntese (A), transpiração (E), condutância estomática (Gs), concentração interna de CO2 (Ci) temperatura da folha na temperatura do ar (°C) e carbono interno (Ci), eficiência instantânea do uso da água (EUA) (A/E), eficiência intrínseca do uso da água (EiUC) (A/Gs) e eficiência intrínseca da carboxilação (razão A/Ci). As taxas de fotossíntese máxima (A), fotossíntese (E) e condutância estomática (Gs) mostraram-se influenciadas pela hora do dia, pois não houve interferência de fatores externos nos padrões diurnos das trocas gasosas; fatores endógenos, provavelmente devido ao ritmo circadiano. O parâmetro das trocas gasosas das espécies sub-florestais responde diferentemente, nas pequenas variações nos níveis de luminosidade do sub-bosque.Research, Society and Development2020-03-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/287010.33448/rsd-v9i5.2870Research, Society and Development; Vol. 9 No. 5; e43952870Research, Society and Development; Vol. 9 Núm. 5; e43952870Research, Society and Development; v. 9 n. 5; e439528702525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/2870/5360Copyright (c) 2020 Magnólia Martins Alves, Manoel Bandeira de Albuquerque, Renata Ranielly Pedroza Cruz, Mário Luiz Farias Cavalcantiinfo:eu-repo/semantics/openAccessAlves, Magnólia MartinsAlbuquerque, Manoel Bandeira deCruz, Renata Ranielly PedrozaCavalcanti, Mário Luiz Farias2020-08-20T18:06:36Zoai:ojs.pkp.sfu.ca:article/2870Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:27:17.147683Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Gas exchanges and photosynthetic efficiency in sub-forest species from Atlantic Forest
Intercambios de gases y eficiencia fotosintética en especies de sotobosque en el Bosque Atlántico
Trocas gasosas e eficiência fotossintética em espécies de sub-bosque em Mata Atlântica
title Gas exchanges and photosynthetic efficiency in sub-forest species from Atlantic Forest
spellingShingle Gas exchanges and photosynthetic efficiency in sub-forest species from Atlantic Forest
Alves, Magnólia Martins
Características fotosintéticas
Variación diurna
Tasas de carboxilación.
Características fotossintéticas
Variação diurna
Taxas de carboxilação.
Photosynthetic characteristics
Diurnal variation
Carboxylation rate.
title_short Gas exchanges and photosynthetic efficiency in sub-forest species from Atlantic Forest
title_full Gas exchanges and photosynthetic efficiency in sub-forest species from Atlantic Forest
title_fullStr Gas exchanges and photosynthetic efficiency in sub-forest species from Atlantic Forest
title_full_unstemmed Gas exchanges and photosynthetic efficiency in sub-forest species from Atlantic Forest
title_sort Gas exchanges and photosynthetic efficiency in sub-forest species from Atlantic Forest
author Alves, Magnólia Martins
author_facet Alves, Magnólia Martins
Albuquerque, Manoel Bandeira de
Cruz, Renata Ranielly Pedroza
Cavalcanti, Mário Luiz Farias
author_role author
author2 Albuquerque, Manoel Bandeira de
Cruz, Renata Ranielly Pedroza
Cavalcanti, Mário Luiz Farias
author2_role author
author
author
dc.contributor.author.fl_str_mv Alves, Magnólia Martins
Albuquerque, Manoel Bandeira de
Cruz, Renata Ranielly Pedroza
Cavalcanti, Mário Luiz Farias
dc.subject.por.fl_str_mv Características fotosintéticas
Variación diurna
Tasas de carboxilación.
Características fotossintéticas
Variação diurna
Taxas de carboxilação.
Photosynthetic characteristics
Diurnal variation
Carboxylation rate.
topic Características fotosintéticas
Variación diurna
Tasas de carboxilación.
Características fotossintéticas
Variação diurna
Taxas de carboxilação.
Photosynthetic characteristics
Diurnal variation
Carboxylation rate.
description The availability of light is one of the factors that most limits the photosynthesis of juvenile trees in the understory of the forest. The study was carried out in the Mata do Pau-Ferro State Park, located in the city of Areia, PB. The objective of this study was to evaluate how gas exchanges occur in individuals of Psychotria colorata (Willd. Ex Roem & Schult.), Senna georgica Irwin & Barneby, Himatanthus phagedaenicus (Mart.) Woodson, Solanum swartzianum Roem. & Schult, Psychotria carthagenensis Jacq.e Psychotria hoffmannseggiana (Willd. ex Schult.) in the understory of a remnant of Mata Atlântica. The rate of photosynthesis (A), transpiration (E), stomatal conductance (Gs), internal CO2 concentration (Ci) leaf temperature-air temperature (°C), and internal carbon (Ci), instantaneous efficiency of water use (EUA) (A/E), Intrinsic efficiency of water use (EiUC) (A/Gs) and the intrinsic efficiency of carboxylation (ratio A/Ci). The rates of maximum photosynthesis (A), photosynthesis (E) and stomatal conductance (Gs) were shown to be influenced by the time of day, as there was no interference of external factors in the diurnal patterns of gas exchange, variations are due to endogenous factors, probably due to the circadian rhythm. The parameter of the gas exchange of sub-forest species responds differently, in the small variations in the luminosity levels of the forest understory
publishDate 2020
dc.date.none.fl_str_mv 2020-03-28
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/2870
10.33448/rsd-v9i5.2870
url https://rsdjournal.org/index.php/rsd/article/view/2870
identifier_str_mv 10.33448/rsd-v9i5.2870
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/2870/5360
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 9 No. 5; e43952870
Research, Society and Development; Vol. 9 Núm. 5; e43952870
Research, Society and Development; v. 9 n. 5; e43952870
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
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