The plasticity of the photosynthetic apparatus and antioxidant responses are critical for the dispersion of Rhizophora mangle along a salinity gradient
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.aquabot.2022.103609 http://hdl.handle.net/11449/246443 |
Resumo: | The physiological mechanisms responsible for salinity tolerance in Rhizophora mangle remain unclear. Moreover, the effects of climate change on the distribution and abundance of mangrove forests are unknown. Thus, to elucidate the possible factors responsible for saline tolerance in this species, we investigated the growth and physiological parameters in young plants cultivated in a saline gradient (0, 10, 35, and 70 ppt). Biometric indicators, water status parameters, cell integrity, ions concentrations in leaves and roots, pigment concentrations, chlorophyll a fluorescence, oxidative stress indicators, and antioxidant enzyme activities were evaluated. The results showed that R. mangle could grow in the absence (0 ppt) or moderate salinity (10 ppt). However, by increasing the salinity to sea level (35 ppt), the growth and development decreased compared to plants grown at ten ppt. In hypersalinity (70 ppt), plant growth and development are severely hampered. Under hypersalinity, the increased concentration of H2O2 promoted lipid peroxidation and membrane damage. The chlorophyll contents decreased, and accessory pigment concentrations increased. Moreover, the modulation of the quantum yield of PSII and the antioxidant system was crucial to avoiding photoinhibition and salinity tolerance in R. mangle. |
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Repositório Institucional da UNESP |
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The plasticity of the photosynthetic apparatus and antioxidant responses are critical for the dispersion of Rhizophora mangle along a salinity gradientAntioxidant metabolismClimate changeMangrovesPhotosynthetic yieldThe physiological mechanisms responsible for salinity tolerance in Rhizophora mangle remain unclear. Moreover, the effects of climate change on the distribution and abundance of mangrove forests are unknown. Thus, to elucidate the possible factors responsible for saline tolerance in this species, we investigated the growth and physiological parameters in young plants cultivated in a saline gradient (0, 10, 35, and 70 ppt). Biometric indicators, water status parameters, cell integrity, ions concentrations in leaves and roots, pigment concentrations, chlorophyll a fluorescence, oxidative stress indicators, and antioxidant enzyme activities were evaluated. The results showed that R. mangle could grow in the absence (0 ppt) or moderate salinity (10 ppt). However, by increasing the salinity to sea level (35 ppt), the growth and development decreased compared to plants grown at ten ppt. In hypersalinity (70 ppt), plant growth and development are severely hampered. Under hypersalinity, the increased concentration of H2O2 promoted lipid peroxidation and membrane damage. The chlorophyll contents decreased, and accessory pigment concentrations increased. Moreover, the modulation of the quantum yield of PSII and the antioxidant system was crucial to avoiding photoinhibition and salinity tolerance in R. mangle.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Hawk Mountain Sanctuary AssociationFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)São Paulo State University (UNESP) Biosciences Institute, Coastal Campus, 73601, SPLancaster Environment Centre Lancaster UniversitySão Paulo State University (UNESP) Biosciences Institute, Coastal Campus, 73601, SPHawk Mountain Sanctuary Association: #201919245–0FAPESP: #404707/2018–1Universidade Estadual Paulista (UNESP)Lancaster UniversitySilva, Bruno Pereira [UNESP]Saballo, Heloisa Maria [UNESP]Lobo, Ana Karla MoreiraNeto, Milton Costa Lima [UNESP]2023-07-29T12:41:00Z2023-07-29T12:41:00Z2023-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.aquabot.2022.103609Aquatic Botany, v. 185.0304-3770http://hdl.handle.net/11449/24644310.1016/j.aquabot.2022.1036092-s2.0-85143650997Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAquatic Botanyinfo:eu-repo/semantics/openAccess2023-07-29T12:41:00Zoai:repositorio.unesp.br:11449/246443Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T12:41Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The plasticity of the photosynthetic apparatus and antioxidant responses are critical for the dispersion of Rhizophora mangle along a salinity gradient |
title |
The plasticity of the photosynthetic apparatus and antioxidant responses are critical for the dispersion of Rhizophora mangle along a salinity gradient |
spellingShingle |
The plasticity of the photosynthetic apparatus and antioxidant responses are critical for the dispersion of Rhizophora mangle along a salinity gradient Silva, Bruno Pereira [UNESP] Antioxidant metabolism Climate change Mangroves Photosynthetic yield |
title_short |
The plasticity of the photosynthetic apparatus and antioxidant responses are critical for the dispersion of Rhizophora mangle along a salinity gradient |
title_full |
The plasticity of the photosynthetic apparatus and antioxidant responses are critical for the dispersion of Rhizophora mangle along a salinity gradient |
title_fullStr |
The plasticity of the photosynthetic apparatus and antioxidant responses are critical for the dispersion of Rhizophora mangle along a salinity gradient |
title_full_unstemmed |
The plasticity of the photosynthetic apparatus and antioxidant responses are critical for the dispersion of Rhizophora mangle along a salinity gradient |
title_sort |
The plasticity of the photosynthetic apparatus and antioxidant responses are critical for the dispersion of Rhizophora mangle along a salinity gradient |
author |
Silva, Bruno Pereira [UNESP] |
author_facet |
Silva, Bruno Pereira [UNESP] Saballo, Heloisa Maria [UNESP] Lobo, Ana Karla Moreira Neto, Milton Costa Lima [UNESP] |
author_role |
author |
author2 |
Saballo, Heloisa Maria [UNESP] Lobo, Ana Karla Moreira Neto, Milton Costa Lima [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Lancaster University |
dc.contributor.author.fl_str_mv |
Silva, Bruno Pereira [UNESP] Saballo, Heloisa Maria [UNESP] Lobo, Ana Karla Moreira Neto, Milton Costa Lima [UNESP] |
dc.subject.por.fl_str_mv |
Antioxidant metabolism Climate change Mangroves Photosynthetic yield |
topic |
Antioxidant metabolism Climate change Mangroves Photosynthetic yield |
description |
The physiological mechanisms responsible for salinity tolerance in Rhizophora mangle remain unclear. Moreover, the effects of climate change on the distribution and abundance of mangrove forests are unknown. Thus, to elucidate the possible factors responsible for saline tolerance in this species, we investigated the growth and physiological parameters in young plants cultivated in a saline gradient (0, 10, 35, and 70 ppt). Biometric indicators, water status parameters, cell integrity, ions concentrations in leaves and roots, pigment concentrations, chlorophyll a fluorescence, oxidative stress indicators, and antioxidant enzyme activities were evaluated. The results showed that R. mangle could grow in the absence (0 ppt) or moderate salinity (10 ppt). However, by increasing the salinity to sea level (35 ppt), the growth and development decreased compared to plants grown at ten ppt. In hypersalinity (70 ppt), plant growth and development are severely hampered. Under hypersalinity, the increased concentration of H2O2 promoted lipid peroxidation and membrane damage. The chlorophyll contents decreased, and accessory pigment concentrations increased. Moreover, the modulation of the quantum yield of PSII and the antioxidant system was crucial to avoiding photoinhibition and salinity tolerance in R. mangle. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T12:41:00Z 2023-07-29T12:41:00Z 2023-03-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.aquabot.2022.103609 Aquatic Botany, v. 185. 0304-3770 http://hdl.handle.net/11449/246443 10.1016/j.aquabot.2022.103609 2-s2.0-85143650997 |
url |
http://dx.doi.org/10.1016/j.aquabot.2022.103609 http://hdl.handle.net/11449/246443 |
identifier_str_mv |
Aquatic Botany, v. 185. 0304-3770 10.1016/j.aquabot.2022.103609 2-s2.0-85143650997 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Aquatic Botany |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964774255034368 |