Leaf Size modulation by cytokinins in sesame plants

Phytohormones play important roles in controlling leaf size and in the modulation of various stress responses, including drought. In this study, hormone profiling analyses by ultra high-performance liquid chromatography coupled to electrospray ionization tandem mass spectrometry (UHPLC-MS/MS) was pe...

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Autores: Mehmood, Maryam, Pérez-Llorca, Marina, Casadesús, Andrea, Farrakh, Sumaira, Munné Bosch, Sergi
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2021
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/182993
Acceso en línea:https://hdl.handle.net/2445/182993
Access Level:acceso abierto
Palabra clave:Resistència de les plantes a la sequera
Fulles
Hormones vegetals
Drought tolerance of plants
Leaves
Plant hormones
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spelling Leaf Size modulation by cytokinins in sesame plantsMehmood, MaryamPérez-Llorca, MarinaCasadesús, AndreaFarrakh, SumairaMunné Bosch, SergiResistència de les plantes a la sequeraFullesHormones vegetalsDrought tolerance of plantsLeavesPlant hormonesPhytohormones play important roles in controlling leaf size and in the modulation of various stress responses, including drought. In this study, hormone profiling analyses by ultra high-performance liquid chromatography coupled to electrospray ionization tandem mass spectrometry (UHPLC-MS/MS) was performed in leaves collected at three stages of active leaf growth to unravel which phytohormones modulate leaf size in sesame (Sesamum indicum L.) plants, an important oil-rich crop. Furthermore, endogenous contents of phytohormones were measured in parallel to various stress markers in sesame plants exposed to mild water deficit conditions by withholding water in potted plants for one week. Results revealed a major role of cytokinins and auxin in the modulation of leaf growth in sesame plants (which increased by 21.5 and 2.1-fold, respectively, with leaf growth), as well as a putative antagonistic response between jasmonic acid and salicylic acid during leaf development. Furthermore, growth arrest during water deficit stress appeared to be modulated by cytokinins, the endogenous contents of which decreased (by 48%) in parallel with ABA increases (by 59%). Reductions in the contents of the active cytokinin trans-zeatin occurred in parallel with increases in isopentenyladenine contents under drought, which suggests a partial metabolic limitation in cytokinin biosynthesis in leaves upon water deficit stress. These results provide useful information for the hormonal modulation of leaf size and the improvement of leaf growth and production in sesame plants through manipulation of the levels of key regulatory phytohormones.Elsevier Masson SAS2022202220212022info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion8 p.application/pdfapplication/pdfhttps://hdl.handle.net/2445/182993Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1016/j.plaphy.2021.09.013Plant Physiology and Biochemistry, 2021, vol. 167, p. 763-770https://doi.org/10.1016/j.plaphy.2021.09.013(c) Elsevier Masson SAS, 2021info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1829932026-05-29T05:05:01Z
dc.title.none.fl_str_mv Leaf Size modulation by cytokinins in sesame plants
title Leaf Size modulation by cytokinins in sesame plants
spellingShingle Leaf Size modulation by cytokinins in sesame plants
Mehmood, Maryam
Resistència de les plantes a la sequera
Fulles
Hormones vegetals
Drought tolerance of plants
Leaves
Plant hormones
title_short Leaf Size modulation by cytokinins in sesame plants
title_full Leaf Size modulation by cytokinins in sesame plants
title_fullStr Leaf Size modulation by cytokinins in sesame plants
title_full_unstemmed Leaf Size modulation by cytokinins in sesame plants
title_sort Leaf Size modulation by cytokinins in sesame plants
dc.creator.none.fl_str_mv Mehmood, Maryam
Pérez-Llorca, Marina
Casadesús, Andrea
Farrakh, Sumaira
Munné Bosch, Sergi
author Mehmood, Maryam
author_facet Mehmood, Maryam
Pérez-Llorca, Marina
Casadesús, Andrea
Farrakh, Sumaira
Munné Bosch, Sergi
author_role author
author2 Pérez-Llorca, Marina
Casadesús, Andrea
Farrakh, Sumaira
Munné Bosch, Sergi
author2_role author
author
author
author
dc.subject.none.fl_str_mv Resistència de les plantes a la sequera
Fulles
Hormones vegetals
Drought tolerance of plants
Leaves
Plant hormones
topic Resistència de les plantes a la sequera
Fulles
Hormones vegetals
Drought tolerance of plants
Leaves
Plant hormones
description Phytohormones play important roles in controlling leaf size and in the modulation of various stress responses, including drought. In this study, hormone profiling analyses by ultra high-performance liquid chromatography coupled to electrospray ionization tandem mass spectrometry (UHPLC-MS/MS) was performed in leaves collected at three stages of active leaf growth to unravel which phytohormones modulate leaf size in sesame (Sesamum indicum L.) plants, an important oil-rich crop. Furthermore, endogenous contents of phytohormones were measured in parallel to various stress markers in sesame plants exposed to mild water deficit conditions by withholding water in potted plants for one week. Results revealed a major role of cytokinins and auxin in the modulation of leaf growth in sesame plants (which increased by 21.5 and 2.1-fold, respectively, with leaf growth), as well as a putative antagonistic response between jasmonic acid and salicylic acid during leaf development. Furthermore, growth arrest during water deficit stress appeared to be modulated by cytokinins, the endogenous contents of which decreased (by 48%) in parallel with ABA increases (by 59%). Reductions in the contents of the active cytokinin trans-zeatin occurred in parallel with increases in isopentenyladenine contents under drought, which suggests a partial metabolic limitation in cytokinin biosynthesis in leaves upon water deficit stress. These results provide useful information for the hormonal modulation of leaf size and the improvement of leaf growth and production in sesame plants through manipulation of the levels of key regulatory phytohormones.
publishDate 2021
dc.date.none.fl_str_mv 2021
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/182993
url https://hdl.handle.net/2445/182993
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1016/j.plaphy.2021.09.013
Plant Physiology and Biochemistry, 2021, vol. 167, p. 763-770
https://doi.org/10.1016/j.plaphy.2021.09.013
dc.rights.none.fl_str_mv (c) Elsevier Masson SAS, 2021
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Elsevier Masson SAS, 2021
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 8 p.
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Masson SAS
publisher.none.fl_str_mv Elsevier Masson SAS
dc.source.none.fl_str_mv Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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