Ecophysiology of caatinga native species under semi-arid conditions

Detalhes bibliográficos
Autor(a) principal: Mesquita, Alessandro Carlos
Data de Publicação: 2018
Outros Autores: Dantas, Barbara França, Cairo, Paulo Araquém Ramos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Bioscience journal (Online)
Texto Completo: https://seer.ufu.br/index.php/biosciencejournal/article/view/39889
Resumo: Caatinga is a biome from the Brazilian northeastern semiarid region which needs further studies for the preservation of its native species. The aim of this study was to evaluate the physiological behavior of six native species. The experiment was arranged in six treatments (native species) and three replicates in a randomized block design. Net photosynthesis, transpiration, stomatal conductance, photosynthetic photon flux density, chlorophyll content, and soil moisture were evaluated. According to the results, Mimosa spp. had the lowest levels of chlorophyll content. In all species, water deficit caused significant decrease in transpiration rate and stomatal conductance. M urundeuva and Cnidoscolus spp. can be considered the most sensitive species to drought as changes in those variables also led to the decline in net photosynthesis. The other species can be considered more tolerant to drought, since net photosynthesis did not suffer significant decrease despite the harmful effects of water deficit on transpiration and stomatal conductance.
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spelling Ecophysiology of caatinga native species under semi-arid conditions Ecofisiologia de espécies nativas da caatinga em condições semiáridasphotosynthesisplant-water relationshipdroughtbrazilian semiarid.Agricultural SciencesCaatinga is a biome from the Brazilian northeastern semiarid region which needs further studies for the preservation of its native species. The aim of this study was to evaluate the physiological behavior of six native species. The experiment was arranged in six treatments (native species) and three replicates in a randomized block design. Net photosynthesis, transpiration, stomatal conductance, photosynthetic photon flux density, chlorophyll content, and soil moisture were evaluated. According to the results, Mimosa spp. had the lowest levels of chlorophyll content. In all species, water deficit caused significant decrease in transpiration rate and stomatal conductance. M urundeuva and Cnidoscolus spp. can be considered the most sensitive species to drought as changes in those variables also led to the decline in net photosynthesis. The other species can be considered more tolerant to drought, since net photosynthesis did not suffer significant decrease despite the harmful effects of water deficit on transpiration and stomatal conductance.A Caatinga é um bioma do semiárido brasileiro que precisa ser mais estudado, para preservar suas espécies nativas. O objetivo deste estudo foi avaliar o comportamento fisiológico de seis espécies nativas. O experimento foi organizado em seis tratamentos (espécies nativas) e três repetições em um delineamento de blocos ao acaso. Foram avaliadas a fotossíntese líquida, transpiração, condutância estomática, densidade DE fluxo de fótons fotossintéticos, teor de clorofila e umidade do solo. De acordo com os resultados, Mimosa spp., mostrou os níveis mais baixos de teor de clorofila. Em todas as espécies, o déficit hídrico provoca diminuição significativa na taxa de transpiração e na condutância estomática. M. urundeuva e Cnidoscolus spp., podem ser consideradas as espécies mais sensíveis à seca, porque as mudanças nessas variáveis levaram também ao declínio da fotossíntese líquida. As outras espécies podem ser consideradas mais tolerantes à seca, pois, apesar dos efeitos nocivos do déficit de água na transpiração e na condutância estomática, a fotossíntese líquida não sofre queda significativa.EDUFU2018-12-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/3988910.14393/BJ-v34n6a2018-39889Bioscience Journal ; Vol. 34 (2018): Supplement 1; 81-89Bioscience Journal ; v. 34 (2018): Supplement 1; 81-891981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/39889/24775Brazil; ContemporaryCopyright (c) 2018 Alessandro Carlos Mesquita, Barbara França Dantas, Paulo Araquém Ramos Cairohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessMesquita, Alessandro CarlosDantas, Barbara FrançaCairo, Paulo Araquém Ramos2022-03-23T11:34:28Zoai:ojs.www.seer.ufu.br:article/39889Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-03-23T11:34:28Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false
dc.title.none.fl_str_mv Ecophysiology of caatinga native species under semi-arid conditions
Ecofisiologia de espécies nativas da caatinga em condições semiáridas
title Ecophysiology of caatinga native species under semi-arid conditions
spellingShingle Ecophysiology of caatinga native species under semi-arid conditions
Mesquita, Alessandro Carlos
photosynthesis
plant-water relationship
drought
brazilian semiarid.
Agricultural Sciences
title_short Ecophysiology of caatinga native species under semi-arid conditions
title_full Ecophysiology of caatinga native species under semi-arid conditions
title_fullStr Ecophysiology of caatinga native species under semi-arid conditions
title_full_unstemmed Ecophysiology of caatinga native species under semi-arid conditions
title_sort Ecophysiology of caatinga native species under semi-arid conditions
author Mesquita, Alessandro Carlos
author_facet Mesquita, Alessandro Carlos
Dantas, Barbara França
Cairo, Paulo Araquém Ramos
author_role author
author2 Dantas, Barbara França
Cairo, Paulo Araquém Ramos
author2_role author
author
dc.contributor.author.fl_str_mv Mesquita, Alessandro Carlos
Dantas, Barbara França
Cairo, Paulo Araquém Ramos
dc.subject.por.fl_str_mv photosynthesis
plant-water relationship
drought
brazilian semiarid.
Agricultural Sciences
topic photosynthesis
plant-water relationship
drought
brazilian semiarid.
Agricultural Sciences
description Caatinga is a biome from the Brazilian northeastern semiarid region which needs further studies for the preservation of its native species. The aim of this study was to evaluate the physiological behavior of six native species. The experiment was arranged in six treatments (native species) and three replicates in a randomized block design. Net photosynthesis, transpiration, stomatal conductance, photosynthetic photon flux density, chlorophyll content, and soil moisture were evaluated. According to the results, Mimosa spp. had the lowest levels of chlorophyll content. In all species, water deficit caused significant decrease in transpiration rate and stomatal conductance. M urundeuva and Cnidoscolus spp. can be considered the most sensitive species to drought as changes in those variables also led to the decline in net photosynthesis. The other species can be considered more tolerant to drought, since net photosynthesis did not suffer significant decrease despite the harmful effects of water deficit on transpiration and stomatal conductance.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-06
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://seer.ufu.br/index.php/biosciencejournal/article/view/39889
10.14393/BJ-v34n6a2018-39889
url https://seer.ufu.br/index.php/biosciencejournal/article/view/39889
identifier_str_mv 10.14393/BJ-v34n6a2018-39889
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.ufu.br/index.php/biosciencejournal/article/view/39889/24775
dc.rights.driver.fl_str_mv Copyright (c) 2018 Alessandro Carlos Mesquita, Barbara França Dantas, Paulo Araquém Ramos Cairo
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Alessandro Carlos Mesquita, Barbara França Dantas, Paulo Araquém Ramos Cairo
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv Brazil; Contemporary
dc.publisher.none.fl_str_mv EDUFU
publisher.none.fl_str_mv EDUFU
dc.source.none.fl_str_mv Bioscience Journal ; Vol. 34 (2018): Supplement 1; 81-89
Bioscience Journal ; v. 34 (2018): Supplement 1; 81-89
1981-3163
reponame:Bioscience journal (Online)
instname:Universidade Federal de Uberlândia (UFU)
instacron:UFU
instname_str Universidade Federal de Uberlândia (UFU)
instacron_str UFU
institution UFU
reponame_str Bioscience journal (Online)
collection Bioscience journal (Online)
repository.name.fl_str_mv Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)
repository.mail.fl_str_mv biosciencej@ufu.br||
_version_ 1797069079058579456

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