Morpho-physiological performance of Mikania glomerata Spreng. and Mikania laevigata Sch. Bip ex Baker plants under different light conditions

Detalhes bibliográficos
Autor(a) principal: Contin, Daniele Ribeiro
Data de Publicação: 2021
Outros Autores: Habermann, Eduardo, Alves, Vani Maria, Martinez, Carlos Alberto
Tipo de documento: preprint
Idioma: eng
Título da fonte: SciELO Preprints
Texto Completo: https://preprints.scielo.org/index.php/scielo/preprint/view/2059
Resumo: In tropical and subtropical zones, lianas play important roles in the process of ecological succession. This study aims to evaluate the photosynthetic and morpho-physiological performance between two lianas species from Mikania genus in response to different levels of radiation: full sun (I0), 25% (I25), 50% (I50), and 75% (I75) retention of solar radiation flux. Plants grown under I75 showed a reduced net photosynthetic rate (A). We observed dynamic photoinhibition at I0 during hours of high irradiation and temperature. The highest and lowest leaf chlorophyll content occurred at I75 and I0, respectively, while carotenoids/total chlorophyll and leaf thickness increased under I0. Total dry mass was higher in plants grown at I0 and I25. However, A values and biomass production of Mikania laevigata were higher at I25, while for Mikania glomerata greater biomass accumulation was observed between I0-I50. Therefore, we concluded that M. laevigata and M. glomerata have different morpho-physiological performances under same the radiation conditions.
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spelling Morpho-physiological performance of Mikania glomerata Spreng. and Mikania laevigata Sch. Bip ex Baker plants under different light conditionsDesempenho morfo-fisiológico de Mikania glomerata Spreng. e Mikania laevigata Sch. Bip ex Baker sob diferentes condições de luminosidadefluorescência da clorofila afotossínteseinterferência da irradiaçãolianastrocas gasosaschlorophyll a fluorescencegas exchangeirradiation interferencelianasphotosynthesisIn tropical and subtropical zones, lianas play important roles in the process of ecological succession. This study aims to evaluate the photosynthetic and morpho-physiological performance between two lianas species from Mikania genus in response to different levels of radiation: full sun (I0), 25% (I25), 50% (I50), and 75% (I75) retention of solar radiation flux. Plants grown under I75 showed a reduced net photosynthetic rate (A). We observed dynamic photoinhibition at I0 during hours of high irradiation and temperature. The highest and lowest leaf chlorophyll content occurred at I75 and I0, respectively, while carotenoids/total chlorophyll and leaf thickness increased under I0. Total dry mass was higher in plants grown at I0 and I25. However, A values and biomass production of Mikania laevigata were higher at I25, while for Mikania glomerata greater biomass accumulation was observed between I0-I50. Therefore, we concluded that M. laevigata and M. glomerata have different morpho-physiological performances under same the radiation conditions.Em regiões tropical e subtropical, lianas desempenham um papel importante no processo de sucessão ecológica. O objetivo deste estudo foi avaliar as respostas fotossintéticas e morfo-fisiológicas entre duas espécies de Mikania em diferentes níveis de radiação: sol pleno (I0), 25% (I25), 50% (I50) e 75% (I75) de retenção do fluxo da radiação solar. Plantas crescidas sob I75 mostraram reduzida taxa fotossintética (A). Nós observamos fotoinibição dinâmica em plantas crescidas sob I0 durante as horas de alta irradiação e temperatura. O maior e menor conteúdo de clorofila ocorreu em plantas sob I75 e I0, respectivamente; enquanto carotenoides/clorofila total e espessuras da epiderme e mesofilo aumentaram sob I0. A massa seca total foi maior em plantas crescidas sob I0 e I25. No entanto, os valores de A e a produção de biomassa de M. laevigata foram maiores sob I25; enquanto para M. glomerata, maior acúmulo de biomassa foi observado entre I0-I50. Portanto, nós concluímos que M. laevigata e M. glomerata apresentaram diferentes respostas morfo-fisiológicas sob mesma condição de radiação.SciELO PreprintsSciELO PreprintsSciELO Preprints2021-04-12info:eu-repo/semantics/preprintinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://preprints.scielo.org/index.php/scielo/preprint/view/205910.1590/2236-8906-74/2020enghttps://preprints.scielo.org/index.php/scielo/article/view/2059/3397Copyright (c) 2021 Daniele Ribeiro Contin, Eduardo Habermann, Vani Maria Alves, Carlos Alberto Martinezhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessContin, Daniele Ribeiro Habermann, Eduardo Alves, Vani Maria Martinez, Carlos Alberto reponame:SciELO Preprintsinstname:SciELOinstacron:SCI2021-03-30T13:16:44Zoai:ops.preprints.scielo.org:preprint/2059Servidor de preprintshttps://preprints.scielo.org/index.php/scieloONGhttps://preprints.scielo.org/index.php/scielo/oaiscielo.submission@scielo.orgopendoar:2021-03-30T13:16:44SciELO Preprints - SciELOfalse
dc.title.none.fl_str_mv Morpho-physiological performance of Mikania glomerata Spreng. and Mikania laevigata Sch. Bip ex Baker plants under different light conditions
Desempenho morfo-fisiológico de Mikania glomerata Spreng. e Mikania laevigata Sch. Bip ex Baker sob diferentes condições de luminosidade
title Morpho-physiological performance of Mikania glomerata Spreng. and Mikania laevigata Sch. Bip ex Baker plants under different light conditions
spellingShingle Morpho-physiological performance of Mikania glomerata Spreng. and Mikania laevigata Sch. Bip ex Baker plants under different light conditions
Contin, Daniele Ribeiro
fluorescência da clorofila a
fotossíntese
interferência da irradiação
lianas
trocas gasosas
chlorophyll a fluorescence
gas exchange
irradiation interference
lianas
photosynthesis
title_short Morpho-physiological performance of Mikania glomerata Spreng. and Mikania laevigata Sch. Bip ex Baker plants under different light conditions
title_full Morpho-physiological performance of Mikania glomerata Spreng. and Mikania laevigata Sch. Bip ex Baker plants under different light conditions
title_fullStr Morpho-physiological performance of Mikania glomerata Spreng. and Mikania laevigata Sch. Bip ex Baker plants under different light conditions
title_full_unstemmed Morpho-physiological performance of Mikania glomerata Spreng. and Mikania laevigata Sch. Bip ex Baker plants under different light conditions
title_sort Morpho-physiological performance of Mikania glomerata Spreng. and Mikania laevigata Sch. Bip ex Baker plants under different light conditions
author Contin, Daniele Ribeiro
author_facet Contin, Daniele Ribeiro
Habermann, Eduardo
Alves, Vani Maria
Martinez, Carlos Alberto
author_role author
author2 Habermann, Eduardo
Alves, Vani Maria
Martinez, Carlos Alberto
author2_role author
author
author
dc.contributor.author.fl_str_mv Contin, Daniele Ribeiro
Habermann, Eduardo
Alves, Vani Maria
Martinez, Carlos Alberto
dc.subject.por.fl_str_mv fluorescência da clorofila a
fotossíntese
interferência da irradiação
lianas
trocas gasosas
chlorophyll a fluorescence
gas exchange
irradiation interference
lianas
photosynthesis
topic fluorescência da clorofila a
fotossíntese
interferência da irradiação
lianas
trocas gasosas
chlorophyll a fluorescence
gas exchange
irradiation interference
lianas
photosynthesis
description In tropical and subtropical zones, lianas play important roles in the process of ecological succession. This study aims to evaluate the photosynthetic and morpho-physiological performance between two lianas species from Mikania genus in response to different levels of radiation: full sun (I0), 25% (I25), 50% (I50), and 75% (I75) retention of solar radiation flux. Plants grown under I75 showed a reduced net photosynthetic rate (A). We observed dynamic photoinhibition at I0 during hours of high irradiation and temperature. The highest and lowest leaf chlorophyll content occurred at I75 and I0, respectively, while carotenoids/total chlorophyll and leaf thickness increased under I0. Total dry mass was higher in plants grown at I0 and I25. However, A values and biomass production of Mikania laevigata were higher at I25, while for Mikania glomerata greater biomass accumulation was observed between I0-I50. Therefore, we concluded that M. laevigata and M. glomerata have different morpho-physiological performances under same the radiation conditions.
publishDate 2021
dc.date.none.fl_str_mv 2021-04-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/preprint
info:eu-repo/semantics/publishedVersion
format preprint
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://preprints.scielo.org/index.php/scielo/preprint/view/2059
10.1590/2236-8906-74/2020
url https://preprints.scielo.org/index.php/scielo/preprint/view/2059
identifier_str_mv 10.1590/2236-8906-74/2020
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://preprints.scielo.org/index.php/scielo/article/view/2059/3397
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv SciELO Preprints
SciELO Preprints
SciELO Preprints
publisher.none.fl_str_mv SciELO Preprints
SciELO Preprints
SciELO Preprints
dc.source.none.fl_str_mv reponame:SciELO Preprints
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instname_str SciELO
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