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Differential Water Deficit in Leaves Is a Principal Factor Modifying Barley Response to Drought Stress

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cris.virtual.author-orcid0000-0002-0102-0084
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cris.virtualsource.author-orcid51a5a68b-106b-4e9d-bd9b-79d15d3ec0c1
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dc.abstract.enIn response to environmental stress, plants activate complex signalling, including being dependent on reactive oxygen–nitrogen–sulphur species. One of the key abiotic stresses is drought. As a result of drought, changes in the level of hydration of the plant occur, which obviously entails various metabolic alternations. The primary aim of this study was to determine the relationship between the response of barley to drought and the intensity of stress, therefore investigations were performed under various levels of water saturation deficit (WSD) in leaves at 15%, 30%, and 50%. In barley subjected to drought, most significant changes occurred under a slight dehydration level at 15%. It was observed that the gene expression of 9-cis-epoxycarotenoid dioxygenases, enzymes involved in ABA biosynthesis, increased significantly, and led to a higher concentration of ABA. This was most likely the result of an increase in the gene expression and enzyme activity of L-cysteine desulfhydrase, which is responsible for H2S synthesis. Our results suggest that the differential water deficit in leaves underlies the activation of an appropriate defence, with ABA metabolism at the centre of these processes. Furthermore, at 15% WSD, a dominant contribution of H2O2-dependent signalling was noted, but at 30% and 50% WSD, significant NO-dependent signalling occurred.
dc.affiliationWydział Rolnictwa, Ogrodnictwa i Bioinżynierii
dc.affiliation.instituteKatedra Metod Matematycznych i Statystycznych
dc.contributor.authorNykiel, Małgorzata
dc.contributor.authorGietler, Marta
dc.contributor.authorFidler, Justyna
dc.contributor.authorGraska, Jakub
dc.contributor.authorRybarczyk-Płońska, Anna
dc.contributor.authorPrabucka, Beata
dc.contributor.authorMuszyńska, Ewa
dc.contributor.authorBocianowski, Jan
dc.contributor.authorLabudda, Mateusz
dc.date.access2025-11-04
dc.date.accessioned2025-11-04T09:29:17Z
dc.date.available2025-11-04T09:29:17Z
dc.date.copyright2022-12-03
dc.date.issued2022
dc.description.abstract<jats:p>In response to environmental stress, plants activate complex signalling, including being dependent on reactive oxygen–nitrogen–sulphur species. One of the key abiotic stresses is drought. As a result of drought, changes in the level of hydration of the plant occur, which obviously entails various metabolic alternations. The primary aim of this study was to determine the relationship between the response of barley to drought and the intensity of stress, therefore investigations were performed under various levels of water saturation deficit (WSD) in leaves at 15%, 30%, and 50%. In barley subjected to drought, most significant changes occurred under a slight dehydration level at 15%. It was observed that the gene expression of 9-cis-epoxycarotenoid dioxygenases, enzymes involved in ABA biosynthesis, increased significantly, and led to a higher concentration of ABA. This was most likely the result of an increase in the gene expression and enzyme activity of L-cysteine desulfhydrase, which is responsible for H2S synthesis. Our results suggest that the differential water deficit in leaves underlies the activation of an appropriate defence, with ABA metabolism at the centre of these processes. Furthermore, at 15% WSD, a dominant contribution of H2O2-dependent signalling was noted, but at 30% and 50% WSD, significant NO-dependent signalling occurred.</jats:p>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if5,6
dc.description.number23
dc.description.points140
dc.description.versionfinal_published
dc.description.volume23
dc.identifier.doi10.3390/ijms232315240
dc.identifier.issn1422-0067
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/5706
dc.identifier.weblinkhttps://www.mdpi.com/1422-0067/23/23/15240
dc.languageen
dc.pbn.affiliationagriculture and horticulture
dc.relation.ispartofInternational Journal of Molecular Sciences
dc.relation.pagesart. 15240
dc.rightsCC-BY
dc.sciencecloudnosend
dc.share.typeOPEN_JOURNAL
dc.subject.enbarley
dc.subject.endrought
dc.subject.ennitrate reductase
dc.subject.enL-cysteine desulfhydrase
dc.subject.enlipid peroxidation
dc.subject.enalert phase
dc.titleDifferential Water Deficit in Leaves Is a Principal Factor Modifying Barley Response to Drought Stress
dc.title.volumeSpecial Issue Drought Stress Tolerance in Plants in 2022
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue23
oaire.citation.volume23