Fluorescence of chlorophyll a and photosynthetic pigments in Atriplex nummularia under abiotic stresses
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
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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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 |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000400232 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000400232 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1807-1929/agriambi.v21n4p232-237 |
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 |
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 |
institution |
UFCG |
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) |
repository.mail.fl_str_mv |
||agriambi@agriambi.com.br |
_version_ |
1750297685214101504 |