Fluorescence of chlorophyll a and photosynthetic pigments in Atriplex nummularia under abiotic stresses

Detalhes bibliográficos
Autor(a) principal: Melo,Hidelblandi F. de
Data de Publicação: 2017
Outros Autores: Souza,Edivan R. de, Cunha,Jailson C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000400232
Resumo: ABSTRACT Chlorophyll a fluorescence is a very useful tool in ecophysiological studies to analyze the photosynthetic performance of plants under biotic and abiotic stresses. This research aimed to evaluate the parameters of the fluorescence of chlorophyll a, contents of chlorophyll a, b and total, and carotenoids in Atriplex nummularia cultivated under water stress (37 and 70% of field capacity) and salt stress (irrigation water with electrical conductivity of 0, 5, 10, 20, 30 and 40 dS m-1), besides two sources of salts: NaCl and a mixture of salts of Ca2+, Mg+2, K+, Na+ and Cl-, in a 6 x 2 x 2 factorial, with 4 replicates, totaling 96 experimental plots. At 91 days after transplanting, the initial fluorescence (F0), maximum fluorescence (Fm), potential quantum efficiency of photosystem II (Fv/Fm), Fv/F0 ratio and the contents of chlorophyll a, b, and total and carotenoids were determined. All assessed parameters decreased as a standard response to salt stress, except F0, which had, as a characteristic, the increase in its values under stress conditions. The emission parameters for Atriplex nummularia varied with the type of salt present in the irrigation water.
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spelling Fluorescence of chlorophyll a and photosynthetic pigments in Atriplex nummularia under abiotic stressesphotosynthesiswater and salt stresshalophyteABSTRACT Chlorophyll a fluorescence is a very useful tool in ecophysiological studies to analyze the photosynthetic performance of plants under biotic and abiotic stresses. This research aimed to evaluate the parameters of the fluorescence of chlorophyll a, contents of chlorophyll a, b and total, and carotenoids in Atriplex nummularia cultivated under water stress (37 and 70% of field capacity) and salt stress (irrigation water with electrical conductivity of 0, 5, 10, 20, 30 and 40 dS m-1), besides two sources of salts: NaCl and a mixture of salts of Ca2+, Mg+2, K+, Na+ and Cl-, in a 6 x 2 x 2 factorial, with 4 replicates, totaling 96 experimental plots. At 91 days after transplanting, the initial fluorescence (F0), maximum fluorescence (Fm), potential quantum efficiency of photosystem II (Fv/Fm), Fv/F0 ratio and the contents of chlorophyll a, b, and total and carotenoids were determined. All assessed parameters decreased as a standard response to salt stress, except F0, which had, as a characteristic, the increase in its values under stress conditions. The emission parameters for Atriplex nummularia varied with the type of salt present in the irrigation water.Departamento de Engenharia Agrícola - UFCG2017-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000400232Revista Brasileira de Engenharia Agrícola e Ambiental v.21 n.4 2017reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v21n4p232-237info:eu-repo/semantics/openAccessMelo,Hidelblandi F. deSouza,Edivan R. deCunha,Jailson C.eng2017-04-18T00:00:00Zoai:scielo:S1415-43662017000400232Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2017-04-18T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false
dc.title.none.fl_str_mv Fluorescence of chlorophyll a and photosynthetic pigments in Atriplex nummularia under abiotic stresses
title Fluorescence of chlorophyll a and photosynthetic pigments in Atriplex nummularia under abiotic stresses
spellingShingle Fluorescence of chlorophyll a and photosynthetic pigments in Atriplex nummularia under abiotic stresses
Melo,Hidelblandi F. de
photosynthesis
water and salt stress
halophyte
title_short Fluorescence of chlorophyll a and photosynthetic pigments in Atriplex nummularia under abiotic stresses
title_full Fluorescence of chlorophyll a and photosynthetic pigments in Atriplex nummularia under abiotic stresses
title_fullStr Fluorescence of chlorophyll a and photosynthetic pigments in Atriplex nummularia under abiotic stresses
title_full_unstemmed Fluorescence of chlorophyll a and photosynthetic pigments in Atriplex nummularia under abiotic stresses
title_sort Fluorescence of chlorophyll a and photosynthetic pigments in Atriplex nummularia under abiotic stresses
author Melo,Hidelblandi F. de
author_facet Melo,Hidelblandi F. de
Souza,Edivan R. de
Cunha,Jailson C.
author_role author
author2 Souza,Edivan R. de
Cunha,Jailson C.
author2_role author
author
dc.contributor.author.fl_str_mv Melo,Hidelblandi F. de
Souza,Edivan R. de
Cunha,Jailson C.
dc.subject.por.fl_str_mv photosynthesis
water and salt stress
halophyte
topic photosynthesis
water and salt stress
halophyte
description ABSTRACT Chlorophyll a fluorescence is a very useful tool in ecophysiological studies to analyze the photosynthetic performance of plants under biotic and abiotic stresses. This research aimed to evaluate the parameters of the fluorescence of chlorophyll a, contents of chlorophyll a, b and total, and carotenoids in Atriplex nummularia cultivated under water stress (37 and 70% of field capacity) and salt stress (irrigation water with electrical conductivity of 0, 5, 10, 20, 30 and 40 dS m-1), besides two sources of salts: NaCl and a mixture of salts of Ca2+, Mg+2, K+, Na+ and Cl-, in a 6 x 2 x 2 factorial, with 4 replicates, totaling 96 experimental plots. At 91 days after transplanting, the initial fluorescence (F0), maximum fluorescence (Fm), potential quantum efficiency of photosystem II (Fv/Fm), Fv/F0 ratio and the contents of chlorophyll a, b, and total and carotenoids were determined. All assessed parameters decreased as a standard response to salt stress, except F0, which had, as a characteristic, the increase in its values under stress conditions. The emission parameters for Atriplex nummularia varied with the type of salt present in the irrigation water.
publishDate 2017
dc.date.none.fl_str_mv 2017-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000400232
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1807-1929/agriambi.v21n4p232-237
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dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
dc.source.none.fl_str_mv Revista Brasileira de Engenharia Agrícola e Ambiental v.21 n.4 2017
reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
instname:Universidade Federal de Campina Grande (UFCG)
instacron:UFCG
instname_str Universidade Federal de Campina Grande (UFCG)
instacron_str UFCG
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reponame_str Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
collection Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
repository.name.fl_str_mv Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)
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