Different methods of silicon application attenuate salt stress in sorghum and sunflower by modifying the antioxidative defense mechanism
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.ecoenv.2020.110964 http://hdl.handle.net/11449/200755 |
Resumo: | Soil salinization is the most common abiotic stress limiting agricultural productivity worldwide. Recent research has suggested that the application of silicon (Si) has beneficial effects against salt stress in sorghum (Sorghum bicolor L. Moench) and sunflower (Helianthus annuus L.) by regulating the antioxidant system, mineral nutrients, and other important mechanisms. However, whether these effects can be achieved through foliar application of Si, or whether Si application affects Si-accumulating (e.g., sorghum), and intermediate-Si-accumulating (e.g., sunflower) plant species differently, remains unclear. This study investigated different methods of Si application in attenuating the detrimental effects of salt stress, based on the biological responses of two distinct species of Si accumulators, under greenhouse conditions. Two pot experiments were designed as a factorial (2 × 4), randomized complete blocks design (RCBD) with control and salt-stress groups (0 and 100 mmol.L−1 NaCl), and four Si-treatment groups: control (no Si), foliar application (28.6 mmol.L−1), root application (2 mmol.L−1), and combined foliar and root applications. Our results showed that the harmful effects of salt stress were attenuated by Si treatments in both plant species, which decreased Na+ uptake and lipid peroxidation, and increased Si and K+ uptake, relative leaf water content, antioxidant enzyme activities, leaf area, and shoot dry matter. These results were more prominent when Si was applied via nutrient solution in the sorghum plants, and the combined foliar and root applications of Si in sunflower plants. In addition, foliar application of Si alone is an efficient alternative in attenuating the effects of salinity in both plant species when Si is not available in the growth medium. These results suggest that the Si application method plays an important role in Na+ detoxification by modifying the antioxidative defense mechanism, which could actively mediate some important physiological and biochemical processes and helps to increase the shoot dry matter production in sorghum and sunflower plants under salt stress. |
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Different methods of silicon application attenuate salt stress in sorghum and sunflower by modifying the antioxidative defense mechanismFoliar applicationHelianthus annuusRoot supplementationSalt stress remediationSiliconSorghum bicolorSoil salinization is the most common abiotic stress limiting agricultural productivity worldwide. Recent research has suggested that the application of silicon (Si) has beneficial effects against salt stress in sorghum (Sorghum bicolor L. Moench) and sunflower (Helianthus annuus L.) by regulating the antioxidant system, mineral nutrients, and other important mechanisms. However, whether these effects can be achieved through foliar application of Si, or whether Si application affects Si-accumulating (e.g., sorghum), and intermediate-Si-accumulating (e.g., sunflower) plant species differently, remains unclear. This study investigated different methods of Si application in attenuating the detrimental effects of salt stress, based on the biological responses of two distinct species of Si accumulators, under greenhouse conditions. Two pot experiments were designed as a factorial (2 × 4), randomized complete blocks design (RCBD) with control and salt-stress groups (0 and 100 mmol.L−1 NaCl), and four Si-treatment groups: control (no Si), foliar application (28.6 mmol.L−1), root application (2 mmol.L−1), and combined foliar and root applications. Our results showed that the harmful effects of salt stress were attenuated by Si treatments in both plant species, which decreased Na+ uptake and lipid peroxidation, and increased Si and K+ uptake, relative leaf water content, antioxidant enzyme activities, leaf area, and shoot dry matter. These results were more prominent when Si was applied via nutrient solution in the sorghum plants, and the combined foliar and root applications of Si in sunflower plants. In addition, foliar application of Si alone is an efficient alternative in attenuating the effects of salinity in both plant species when Si is not available in the growth medium. These results suggest that the Si application method plays an important role in Na+ detoxification by modifying the antioxidative defense mechanism, which could actively mediate some important physiological and biochemical processes and helps to increase the shoot dry matter production in sorghum and sunflower plants under salt stress.Department of Soil and Fertilizer São Paulo State University (UNESP) School of Agricultural and Veterinarian Sciences, Prof. Paulo Donato Castellane Avenue S/n, P. C. 14884900, JaboticabalDepartment of Biology São Paulo State University (UNESP) School of Agricultural and Veterinarian Sciences, Prof. Paulo Donato Castellane Avenue S/n, P. C. 14884900, JaboticabalDepartment of Soil and Fertilizer São Paulo State University (UNESP) School of Agricultural and Veterinarian Sciences, Prof. Paulo Donato Castellane Avenue S/n, P. C. 14884900, JaboticabalDepartment of Biology São Paulo State University (UNESP) School of Agricultural and Veterinarian Sciences, Prof. Paulo Donato Castellane Avenue S/n, P. C. 14884900, JaboticabalUniversidade Estadual Paulista (Unesp)Calero Hurtado, Alexander [UNESP]Chiconato, Denise Aparecida [UNESP]Prado, Renato de Mello [UNESP]Sousa Junior, Gilmar da Silveira [UNESP]Gratão, Priscila Lupino [UNESP]Felisberto, Guilherme [UNESP]Olivera Viciedo, Dilier [UNESP]Mathias dos Santos, Durvalina Maria [UNESP]2020-12-12T02:15:11Z2020-12-12T02:15:11Z2020-10-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.ecoenv.2020.110964Ecotoxicology and Environmental Safety, v. 203.1090-24140147-6513http://hdl.handle.net/11449/20075510.1016/j.ecoenv.2020.1109642-s2.0-85087929780Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEcotoxicology and Environmental Safetyinfo:eu-repo/semantics/openAccess2024-06-07T14:23:27Zoai:repositorio.unesp.br:11449/200755Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:55:05.953325Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Different methods of silicon application attenuate salt stress in sorghum and sunflower by modifying the antioxidative defense mechanism |
title |
Different methods of silicon application attenuate salt stress in sorghum and sunflower by modifying the antioxidative defense mechanism |
spellingShingle |
Different methods of silicon application attenuate salt stress in sorghum and sunflower by modifying the antioxidative defense mechanism Calero Hurtado, Alexander [UNESP] Foliar application Helianthus annuus Root supplementation Salt stress remediation Silicon Sorghum bicolor |
title_short |
Different methods of silicon application attenuate salt stress in sorghum and sunflower by modifying the antioxidative defense mechanism |
title_full |
Different methods of silicon application attenuate salt stress in sorghum and sunflower by modifying the antioxidative defense mechanism |
title_fullStr |
Different methods of silicon application attenuate salt stress in sorghum and sunflower by modifying the antioxidative defense mechanism |
title_full_unstemmed |
Different methods of silicon application attenuate salt stress in sorghum and sunflower by modifying the antioxidative defense mechanism |
title_sort |
Different methods of silicon application attenuate salt stress in sorghum and sunflower by modifying the antioxidative defense mechanism |
author |
Calero Hurtado, Alexander [UNESP] |
author_facet |
Calero Hurtado, Alexander [UNESP] Chiconato, Denise Aparecida [UNESP] Prado, Renato de Mello [UNESP] Sousa Junior, Gilmar da Silveira [UNESP] Gratão, Priscila Lupino [UNESP] Felisberto, Guilherme [UNESP] Olivera Viciedo, Dilier [UNESP] Mathias dos Santos, Durvalina Maria [UNESP] |
author_role |
author |
author2 |
Chiconato, Denise Aparecida [UNESP] Prado, Renato de Mello [UNESP] Sousa Junior, Gilmar da Silveira [UNESP] Gratão, Priscila Lupino [UNESP] Felisberto, Guilherme [UNESP] Olivera Viciedo, Dilier [UNESP] Mathias dos Santos, Durvalina Maria [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Calero Hurtado, Alexander [UNESP] Chiconato, Denise Aparecida [UNESP] Prado, Renato de Mello [UNESP] Sousa Junior, Gilmar da Silveira [UNESP] Gratão, Priscila Lupino [UNESP] Felisberto, Guilherme [UNESP] Olivera Viciedo, Dilier [UNESP] Mathias dos Santos, Durvalina Maria [UNESP] |
dc.subject.por.fl_str_mv |
Foliar application Helianthus annuus Root supplementation Salt stress remediation Silicon Sorghum bicolor |
topic |
Foliar application Helianthus annuus Root supplementation Salt stress remediation Silicon Sorghum bicolor |
description |
Soil salinization is the most common abiotic stress limiting agricultural productivity worldwide. Recent research has suggested that the application of silicon (Si) has beneficial effects against salt stress in sorghum (Sorghum bicolor L. Moench) and sunflower (Helianthus annuus L.) by regulating the antioxidant system, mineral nutrients, and other important mechanisms. However, whether these effects can be achieved through foliar application of Si, or whether Si application affects Si-accumulating (e.g., sorghum), and intermediate-Si-accumulating (e.g., sunflower) plant species differently, remains unclear. This study investigated different methods of Si application in attenuating the detrimental effects of salt stress, based on the biological responses of two distinct species of Si accumulators, under greenhouse conditions. Two pot experiments were designed as a factorial (2 × 4), randomized complete blocks design (RCBD) with control and salt-stress groups (0 and 100 mmol.L−1 NaCl), and four Si-treatment groups: control (no Si), foliar application (28.6 mmol.L−1), root application (2 mmol.L−1), and combined foliar and root applications. Our results showed that the harmful effects of salt stress were attenuated by Si treatments in both plant species, which decreased Na+ uptake and lipid peroxidation, and increased Si and K+ uptake, relative leaf water content, antioxidant enzyme activities, leaf area, and shoot dry matter. These results were more prominent when Si was applied via nutrient solution in the sorghum plants, and the combined foliar and root applications of Si in sunflower plants. In addition, foliar application of Si alone is an efficient alternative in attenuating the effects of salinity in both plant species when Si is not available in the growth medium. These results suggest that the Si application method plays an important role in Na+ detoxification by modifying the antioxidative defense mechanism, which could actively mediate some important physiological and biochemical processes and helps to increase the shoot dry matter production in sorghum and sunflower plants under salt stress. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:15:11Z 2020-12-12T02:15:11Z 2020-10-15 |
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.ecoenv.2020.110964 Ecotoxicology and Environmental Safety, v. 203. 1090-2414 0147-6513 http://hdl.handle.net/11449/200755 10.1016/j.ecoenv.2020.110964 2-s2.0-85087929780 |
url |
http://dx.doi.org/10.1016/j.ecoenv.2020.110964 http://hdl.handle.net/11449/200755 |
identifier_str_mv |
Ecotoxicology and Environmental Safety, v. 203. 1090-2414 0147-6513 10.1016/j.ecoenv.2020.110964 2-s2.0-85087929780 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ecotoxicology and Environmental Safety |
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_ |
1808128721289216000 |