Strategies of two tropical woody species to tolerate salt stress

Detalhes bibliográficos
Autor(a) principal: Lustosa, Bruno Melo
Data de Publicação: 2017
Outros Autores: Souza, Lígia Gomes Ferreira, Frosi, Gabriella, Falcão, Hiram Marinho, Pereira, Silvia, Oliveira, Marciel Teixeira, Santos, Mauro Guida
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Florestal Brasileira (Online)
Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1332
Resumo: This study aimed to evaluate the leaf primary metabolism in two woody species, Sterculia foetida and Bombacopsis glabra. Both species have seeds rich in oil and they are largely found in regions with irregularities in water availability. Seedlings were grown in a greenhouse from seeds. At 140 days after emergence, 50% of the plants were subjected to salt stress for 23 days, daily receiving 100 mM of NaCl solution. In both species, leaf stomata conductance and water potential decreased quickly under salt stress. The two species showed different strategies in photosynthetic pigment concentration and components of nitrogen metabolism. S. foetida kept the pigment concentration unchanged after 23 days of stress, while B. glabra increased concentration of chlorophyll a and carotenoids. S. foetida showed a high leaf concentration of K+ in stressed plants and a Na+/K+ ratio without differences when compared to control. Thus, S. foetida presented a better ionic balance, while B. glabra invested in photoprotection. Therefore, both species present potential to be planted in Brazilian Northeast, where water deficit and salt stress are challenging for annual crops.
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spelling Strategies of two tropical woody species to tolerate salt stressEstratégias para tolerar o estresse salino em duas espécies lenhosas tropicaisBiochemical analysisLeaf gas exchangeLeaf water potentialAnálises bioquímicasTrocas gasosas foliaresPotencial hídrico foliarThis study aimed to evaluate the leaf primary metabolism in two woody species, Sterculia foetida and Bombacopsis glabra. Both species have seeds rich in oil and they are largely found in regions with irregularities in water availability. Seedlings were grown in a greenhouse from seeds. At 140 days after emergence, 50% of the plants were subjected to salt stress for 23 days, daily receiving 100 mM of NaCl solution. In both species, leaf stomata conductance and water potential decreased quickly under salt stress. The two species showed different strategies in photosynthetic pigment concentration and components of nitrogen metabolism. S. foetida kept the pigment concentration unchanged after 23 days of stress, while B. glabra increased concentration of chlorophyll a and carotenoids. S. foetida showed a high leaf concentration of K+ in stressed plants and a Na+/K+ ratio without differences when compared to control. Thus, S. foetida presented a better ionic balance, while B. glabra invested in photoprotection. Therefore, both species present potential to be planted in Brazilian Northeast, where water deficit and salt stress are challenging for annual crops.O estudo teve como principal objetivo avaliar o metabolismo primário foliar de duas espécies lenhosas, Sterculia foetida e Bombacopsis glabra, de sementes ricas em óleo e amplamente encontradas em regiões com disponibilidade hídrica irregular. As duas espécies foram cultivadas em casa de vegetação a partir de sementes. Aos 140 dias após a emergência, 50% das plantas foram submetidas ao estresse salino durante 23 dias, recebendo diariamente uma solução de 100 mM de NaCl. As duas espécies rapidamente reduziram a sua condutância estomática e o potencial hídrico foliar, em relação às plantas controle. S. foetida e B. glabra apresentaram estratégias diferentes quanto ao conteúdo de pigmentos fotossintéticos e componentes do metabolismo do nitrogênio. S. foetida manteve seus pigmentos intactos após 23 dias de estresse, enquanto B. glabra aumentou o conteúdo de clorofila a e carotenoides. S. foetida apresentou alto teor foliar de K+ e uma relação Na+/K+ sem diferença nas plantas estressadas comparadas com as do controle. Portanto, S. foetida apresentou um melhor em balanço iônico, enquanto B. glabra investiu em fotoproteção. Assim, as duas espécies são alternativa potencial para serem cultivadas no Nordeste brasileiro, onde condições de estresse hídrico e salinidade são restritivas para culturas anuais.Embrapa Florestas2017-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/133210.4336/2017.pfb.37.89.1332Pesquisa Florestal Brasileira; v. 37 n. 89 (2017): jan./mar.; 63-72Pesquisa Florestal Brasileira; Vol. 37 No. 89 (2017): jan./mar.; 63-721983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1332/558Copyright (c) 2017 Bruno Melo Lustosa, Lígia Gomes Ferreira Souza, Gabriella Frosi, Hiram Marinho Falcão, Silvia Pereira, Marciel Teixeira Oliveira, Mauro Guida Santoshttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessLustosa, Bruno MeloSouza, Lígia Gomes FerreiraFrosi, GabriellaFalcão, Hiram MarinhoPereira, SilviaOliveira, Marciel TeixeiraSantos, Mauro Guida2018-01-07T18:59:59Zoai:pfb.cnpf.embrapa.br/pfb:article/1332Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2018-01-07T18:59:59Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Strategies of two tropical woody species to tolerate salt stress
Estratégias para tolerar o estresse salino em duas espécies lenhosas tropicais
title Strategies of two tropical woody species to tolerate salt stress
spellingShingle Strategies of two tropical woody species to tolerate salt stress
Lustosa, Bruno Melo
Biochemical analysis
Leaf gas exchange
Leaf water potential
Análises bioquímicas
Trocas gasosas foliares
Potencial hídrico foliar
title_short Strategies of two tropical woody species to tolerate salt stress
title_full Strategies of two tropical woody species to tolerate salt stress
title_fullStr Strategies of two tropical woody species to tolerate salt stress
title_full_unstemmed Strategies of two tropical woody species to tolerate salt stress
title_sort Strategies of two tropical woody species to tolerate salt stress
author Lustosa, Bruno Melo
author_facet Lustosa, Bruno Melo
Souza, Lígia Gomes Ferreira
Frosi, Gabriella
Falcão, Hiram Marinho
Pereira, Silvia
Oliveira, Marciel Teixeira
Santos, Mauro Guida
author_role author
author2 Souza, Lígia Gomes Ferreira
Frosi, Gabriella
Falcão, Hiram Marinho
Pereira, Silvia
Oliveira, Marciel Teixeira
Santos, Mauro Guida
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Lustosa, Bruno Melo
Souza, Lígia Gomes Ferreira
Frosi, Gabriella
Falcão, Hiram Marinho
Pereira, Silvia
Oliveira, Marciel Teixeira
Santos, Mauro Guida
dc.subject.por.fl_str_mv Biochemical analysis
Leaf gas exchange
Leaf water potential
Análises bioquímicas
Trocas gasosas foliares
Potencial hídrico foliar
topic Biochemical analysis
Leaf gas exchange
Leaf water potential
Análises bioquímicas
Trocas gasosas foliares
Potencial hídrico foliar
description This study aimed to evaluate the leaf primary metabolism in two woody species, Sterculia foetida and Bombacopsis glabra. Both species have seeds rich in oil and they are largely found in regions with irregularities in water availability. Seedlings were grown in a greenhouse from seeds. At 140 days after emergence, 50% of the plants were subjected to salt stress for 23 days, daily receiving 100 mM of NaCl solution. In both species, leaf stomata conductance and water potential decreased quickly under salt stress. The two species showed different strategies in photosynthetic pigment concentration and components of nitrogen metabolism. S. foetida kept the pigment concentration unchanged after 23 days of stress, while B. glabra increased concentration of chlorophyll a and carotenoids. S. foetida showed a high leaf concentration of K+ in stressed plants and a Na+/K+ ratio without differences when compared to control. Thus, S. foetida presented a better ionic balance, while B. glabra invested in photoprotection. Therefore, both species present potential to be planted in Brazilian Northeast, where water deficit and salt stress are challenging for annual crops.
publishDate 2017
dc.date.none.fl_str_mv 2017-03-31
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://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1332
10.4336/2017.pfb.37.89.1332
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1332
identifier_str_mv 10.4336/2017.pfb.37.89.1332
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1332/558
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Embrapa Florestas
publisher.none.fl_str_mv Embrapa Florestas
dc.source.none.fl_str_mv Pesquisa Florestal Brasileira; v. 37 n. 89 (2017): jan./mar.; 63-72
Pesquisa Florestal Brasileira; Vol. 37 No. 89 (2017): jan./mar.; 63-72
1983-2605
1809-3647
reponame:Pesquisa Florestal Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Florestal Brasileira (Online)
collection Pesquisa Florestal Brasileira (Online)
repository.name.fl_str_mv Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br
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