Hydrogen peroxide is involved in drought stress long-distance signaling controlling early stomatal closure in tomato plants
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1519-6984.267343 http://hdl.handle.net/11449/246353 |
Resumo: | It has long been hypothesized that hydrogen peroxide (H2 O2) may play an essential role in root-to-shoot long-distance signaling during drought conditions. Thus, to better understand the involvement of H2 O2 in drought signaling, two experiments were carried out using tomato plants. In the first experiment, a split-root scheme was used, while in the second experiment, the tomato plants were grown in a single pot and subjected to drought stress. In both experiments, H2 O2 and catalase were applied together with irrigation. Control plants continued to be irrigated according to the water loss. In the split-root experiment, it was verified that the application of H2 O2 to roots induced a clear reduction in plant transpiration compared to untreated or catalase-treated plants. In the second experiment, we observed that H2 O2-treated plants exhibited similar transpiration when compared to untreated and catalase-treated plants under drought stress. Similarly, no difference in water use efficiency was observed. Thus, we conclude that the increase in H2 O2 in the root system can act as a long-distance signal leading to reduced transpiration even when there is no water limitation in the shoot. But it has little effect when there is a reduction in the shoot water potential. |
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Repositório Institucional da UNESP |
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Hydrogen peroxide is involved in drought stress long-distance signaling controlling early stomatal closure in tomato plantsO peróxido de hidrogênio está envolvido na sinalização de longa distância do déficit hídrico controlando o fechamento estomático precoce em plantas de tomatereactive oxygen speciesroot-to-shoot communicationsplit-rootwater losswater relationsIt has long been hypothesized that hydrogen peroxide (H2 O2) may play an essential role in root-to-shoot long-distance signaling during drought conditions. Thus, to better understand the involvement of H2 O2 in drought signaling, two experiments were carried out using tomato plants. In the first experiment, a split-root scheme was used, while in the second experiment, the tomato plants were grown in a single pot and subjected to drought stress. In both experiments, H2 O2 and catalase were applied together with irrigation. Control plants continued to be irrigated according to the water loss. In the split-root experiment, it was verified that the application of H2 O2 to roots induced a clear reduction in plant transpiration compared to untreated or catalase-treated plants. In the second experiment, we observed that H2 O2-treated plants exhibited similar transpiration when compared to untreated and catalase-treated plants under drought stress. Similarly, no difference in water use efficiency was observed. Thus, we conclude that the increase in H2 O2 in the root system can act as a long-distance signal leading to reduced transpiration even when there is no water limitation in the shoot. But it has little effect when there is a reduction in the shoot water potential.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade de Marília – UNIMAR Center of Agrarian Sciences, SPUniversidade Estadual Paulista – UNESP Department of Biology Applied to Agriculture, SPUniversidade Estadual Paulista – UNESP Department of Biology Applied to Agriculture, SPFAPESP: 2019/20339-9Center of Agrarian SciencesUniversidade Estadual Paulista (UNESP)Reis, A. D.P.Carvalho, R. F. [UNESP]Costa, I. B.Girio, R. J.S.Gualberto, R.Spers, R. C.Gaion, L. A.2023-07-29T12:38:36Z2023-07-29T12:38:36Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1590/1519-6984.267343Brazilian Journal of Biology, v. 82.1678-43751519-6984http://hdl.handle.net/11449/24635310.1590/1519-6984.2673432-s2.0-85142401824Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal of Biologyinfo:eu-repo/semantics/openAccess2023-07-29T12:38:36Zoai:repositorio.unesp.br:11449/246353Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T12:38:36Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Hydrogen peroxide is involved in drought stress long-distance signaling controlling early stomatal closure in tomato plants O peróxido de hidrogênio está envolvido na sinalização de longa distância do déficit hídrico controlando o fechamento estomático precoce em plantas de tomate |
title |
Hydrogen peroxide is involved in drought stress long-distance signaling controlling early stomatal closure in tomato plants |
spellingShingle |
Hydrogen peroxide is involved in drought stress long-distance signaling controlling early stomatal closure in tomato plants Reis, A. D.P. reactive oxygen species root-to-shoot communication split-root water loss water relations |
title_short |
Hydrogen peroxide is involved in drought stress long-distance signaling controlling early stomatal closure in tomato plants |
title_full |
Hydrogen peroxide is involved in drought stress long-distance signaling controlling early stomatal closure in tomato plants |
title_fullStr |
Hydrogen peroxide is involved in drought stress long-distance signaling controlling early stomatal closure in tomato plants |
title_full_unstemmed |
Hydrogen peroxide is involved in drought stress long-distance signaling controlling early stomatal closure in tomato plants |
title_sort |
Hydrogen peroxide is involved in drought stress long-distance signaling controlling early stomatal closure in tomato plants |
author |
Reis, A. D.P. |
author_facet |
Reis, A. D.P. Carvalho, R. F. [UNESP] Costa, I. B. Girio, R. J.S. Gualberto, R. Spers, R. C. Gaion, L. A. |
author_role |
author |
author2 |
Carvalho, R. F. [UNESP] Costa, I. B. Girio, R. J.S. Gualberto, R. Spers, R. C. Gaion, L. A. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Center of Agrarian Sciences Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Reis, A. D.P. Carvalho, R. F. [UNESP] Costa, I. B. Girio, R. J.S. Gualberto, R. Spers, R. C. Gaion, L. A. |
dc.subject.por.fl_str_mv |
reactive oxygen species root-to-shoot communication split-root water loss water relations |
topic |
reactive oxygen species root-to-shoot communication split-root water loss water relations |
description |
It has long been hypothesized that hydrogen peroxide (H2 O2) may play an essential role in root-to-shoot long-distance signaling during drought conditions. Thus, to better understand the involvement of H2 O2 in drought signaling, two experiments were carried out using tomato plants. In the first experiment, a split-root scheme was used, while in the second experiment, the tomato plants were grown in a single pot and subjected to drought stress. In both experiments, H2 O2 and catalase were applied together with irrigation. Control plants continued to be irrigated according to the water loss. In the split-root experiment, it was verified that the application of H2 O2 to roots induced a clear reduction in plant transpiration compared to untreated or catalase-treated plants. In the second experiment, we observed that H2 O2-treated plants exhibited similar transpiration when compared to untreated and catalase-treated plants under drought stress. Similarly, no difference in water use efficiency was observed. Thus, we conclude that the increase in H2 O2 in the root system can act as a long-distance signal leading to reduced transpiration even when there is no water limitation in the shoot. But it has little effect when there is a reduction in the shoot water potential. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 2023-07-29T12:38:36Z 2023-07-29T12:38:36Z |
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/10.1590/1519-6984.267343 Brazilian Journal of Biology, v. 82. 1678-4375 1519-6984 http://hdl.handle.net/11449/246353 10.1590/1519-6984.267343 2-s2.0-85142401824 |
url |
http://dx.doi.org/10.1590/1519-6984.267343 http://hdl.handle.net/11449/246353 |
identifier_str_mv |
Brazilian Journal of Biology, v. 82. 1678-4375 1519-6984 10.1590/1519-6984.267343 2-s2.0-85142401824 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Journal of Biology |
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_ |
1797789466639728640 |