Ecophysiology of caatinga native species under semi-arid conditions
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Data de Publicação: | 2018 |
Outros Autores: | , |
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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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 |