Impact of combined heat and salt stresses on tomato plants-insights into nutrient uptake and redox homeostasis
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/79129 |
Resumo: | Currently, salinity and heat are two critical threats to crop production and food security which are being aggravated by the global climatic instability. In this scenario, it is imperative to understand plant responses to simultaneous exposure to different stressors and the cross-talk between underlying functional mechanisms. Thus, in this study, the physiological and biochemical responses of tomato plants (Solanum lycopersicum L.) to the combination of salinity (100 mM NaCl) and heat (42 degrees C; 4 h/day) stress were evaluated. After 21 days of co-exposure, the accumulation of Na+ in plant tissues was superior when salt-treated plants were also exposed to high temperatures compared to the individual saline treatment, leading to the depletion of other nutrients and a harsher negative effect on plant growth. Despite that, neither oxidative damage nor a major accumulation of reactive oxygen species took place under stress conditions, mostly due to the accumulation of antioxidant (AOX) metabolites alongside the activation of several AOX enzymes. Nonetheless, the plausible allocation of resources towards the defense pathways related to oxidative and osmotic stress, along with severe Na toxicity, heavily compromised the ability of plants to grow properly when the combination of salinity and heat was imposed. |
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Impact of combined heat and salt stresses on tomato plants-insights into nutrient uptake and redox homeostasisoxidative stressantioxidant systemSolanum lycopersicumclimate changesalinityhigh temperaturescombined stressCiências Naturais::Ciências BiológicasScience & TechnologyCurrently, salinity and heat are two critical threats to crop production and food security which are being aggravated by the global climatic instability. In this scenario, it is imperative to understand plant responses to simultaneous exposure to different stressors and the cross-talk between underlying functional mechanisms. Thus, in this study, the physiological and biochemical responses of tomato plants (Solanum lycopersicum L.) to the combination of salinity (100 mM NaCl) and heat (42 degrees C; 4 h/day) stress were evaluated. After 21 days of co-exposure, the accumulation of Na+ in plant tissues was superior when salt-treated plants were also exposed to high temperatures compared to the individual saline treatment, leading to the depletion of other nutrients and a harsher negative effect on plant growth. Despite that, neither oxidative damage nor a major accumulation of reactive oxygen species took place under stress conditions, mostly due to the accumulation of antioxidant (AOX) metabolites alongside the activation of several AOX enzymes. Nonetheless, the plausible allocation of resources towards the defense pathways related to oxidative and osmotic stress, along with severe Na toxicity, heavily compromised the ability of plants to grow properly when the combination of salinity and heat was imposed.This research was partially supported through national funds by the Foundation for Science and Technology (FCT), within the scope of UIDB/05748/2020 and UIDP/05748/2020 (GreenUPorto), UIDB/04050/2020 (CBMA), UIDB/50006/2020 (LAQV-REQUIMTE), as well as the PEST(bio)CIDE project (PCIF/GVB/0150/2018) and the Val-Wrack project (POCI-01-0145-FEDER-029818). The work was also supported by the FCT and European funds (FEDER/POCI/COMPETE2020) through the research project "BerryPlastid" with ref. POCI-01-0145-FEDER-028165 and ref. PTDC/BIA-FBT/28165/2017. The authors also acknowledge the support by the I&D project "AgriFood XXI", ref. NORTE-01-0145-FEDER-000041, co-financed by the European Regional Development Fund (FEDER), as well as the support given through NORTE 2020 (Northern Regional Operational Program 2014/2020).MDPIUniversidade do MinhoSousa, BrunoRodrigues, FranciscaSoares, CristianoMartins, MariaAzenha, ManuelLino-Neto, T.Santos, ConceicaoCunha, AnaFidalgo, Fernanda20222022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/79129engSousa, B.; Rodrigues, F.; Soares, C.; Martins, M.; Azenha, M.; Lino-Neto, T.; Santos, C.; Cunha, A.; Fidalgo, F. Impact of Combined Heat and Salt Stresses on Tomato Plants—Insights into Nutrient Uptake and Redox Homeostasis. Antioxidants 2022, 11, 478. https://doi.org/10.3390/antiox110304782076-392110.3390/antiox11030478https://www.mdpi.com/2076-3921/11/3/478info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:17:02Zoai:repositorium.sdum.uminho.pt:1822/79129Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:09:35.439338Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Impact of combined heat and salt stresses on tomato plants-insights into nutrient uptake and redox homeostasis |
title |
Impact of combined heat and salt stresses on tomato plants-insights into nutrient uptake and redox homeostasis |
spellingShingle |
Impact of combined heat and salt stresses on tomato plants-insights into nutrient uptake and redox homeostasis Sousa, Bruno oxidative stress antioxidant system Solanum lycopersicum climate change salinity high temperatures combined stress Ciências Naturais::Ciências Biológicas Science & Technology |
title_short |
Impact of combined heat and salt stresses on tomato plants-insights into nutrient uptake and redox homeostasis |
title_full |
Impact of combined heat and salt stresses on tomato plants-insights into nutrient uptake and redox homeostasis |
title_fullStr |
Impact of combined heat and salt stresses on tomato plants-insights into nutrient uptake and redox homeostasis |
title_full_unstemmed |
Impact of combined heat and salt stresses on tomato plants-insights into nutrient uptake and redox homeostasis |
title_sort |
Impact of combined heat and salt stresses on tomato plants-insights into nutrient uptake and redox homeostasis |
author |
Sousa, Bruno |
author_facet |
Sousa, Bruno Rodrigues, Francisca Soares, Cristiano Martins, Maria Azenha, Manuel Lino-Neto, T. Santos, Conceicao Cunha, Ana Fidalgo, Fernanda |
author_role |
author |
author2 |
Rodrigues, Francisca Soares, Cristiano Martins, Maria Azenha, Manuel Lino-Neto, T. Santos, Conceicao Cunha, Ana Fidalgo, Fernanda |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Sousa, Bruno Rodrigues, Francisca Soares, Cristiano Martins, Maria Azenha, Manuel Lino-Neto, T. Santos, Conceicao Cunha, Ana Fidalgo, Fernanda |
dc.subject.por.fl_str_mv |
oxidative stress antioxidant system Solanum lycopersicum climate change salinity high temperatures combined stress Ciências Naturais::Ciências Biológicas Science & Technology |
topic |
oxidative stress antioxidant system Solanum lycopersicum climate change salinity high temperatures combined stress Ciências Naturais::Ciências Biológicas Science & Technology |
description |
Currently, salinity and heat are two critical threats to crop production and food security which are being aggravated by the global climatic instability. In this scenario, it is imperative to understand plant responses to simultaneous exposure to different stressors and the cross-talk between underlying functional mechanisms. Thus, in this study, the physiological and biochemical responses of tomato plants (Solanum lycopersicum L.) to the combination of salinity (100 mM NaCl) and heat (42 degrees C; 4 h/day) stress were evaluated. After 21 days of co-exposure, the accumulation of Na+ in plant tissues was superior when salt-treated plants were also exposed to high temperatures compared to the individual saline treatment, leading to the depletion of other nutrients and a harsher negative effect on plant growth. Despite that, neither oxidative damage nor a major accumulation of reactive oxygen species took place under stress conditions, mostly due to the accumulation of antioxidant (AOX) metabolites alongside the activation of several AOX enzymes. Nonetheless, the plausible allocation of resources towards the defense pathways related to oxidative and osmotic stress, along with severe Na toxicity, heavily compromised the ability of plants to grow properly when the combination of salinity and heat was imposed. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022 2022-01-01T00:00:00Z |
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 |
https://hdl.handle.net/1822/79129 |
url |
https://hdl.handle.net/1822/79129 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Sousa, B.; Rodrigues, F.; Soares, C.; Martins, M.; Azenha, M.; Lino-Neto, T.; Santos, C.; Cunha, A.; Fidalgo, F. Impact of Combined Heat and Salt Stresses on Tomato Plants—Insights into Nutrient Uptake and Redox Homeostasis. Antioxidants 2022, 11, 478. https://doi.org/10.3390/antiox11030478 2076-3921 10.3390/antiox11030478 https://www.mdpi.com/2076-3921/11/3/478 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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