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Silicon-induced photosynthetic adaptations in common buckwheat under salt stress revealed by prompt chlorophyll a fluorescence analysis

cris.lastimport.scopus2025-10-23T06:55:08Z
cris.virtual.author-orcid0000-0003-0901-9894
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cris.virtual.author-orcid0000-0002-5212-7383
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cris.virtual.author-orcid0000-0002-0953-7045
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cris.virtualsource.author-orcid900a556c-9e6b-49d2-a457-b54a87bccd7c
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cris.virtualsource.author-orcid039c5639-27fb-49d1-97b9-e20f4c473688
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dc.abstract.enThis study aimed at investigating the protective role of silicon (Si) in mitigating salt-induced damage in common buckwheat plants (Fagopyrum esculentum cv. Smuga). Twenty one-day-old seedlings were subjected to salt stress by irrigating 50 mM sodium chloride solutions for seven days, with or without Si (two foliar applications with 1 mM sodium metasilicate nonahydrate). Salt stress significantly altered the chlorophyll a fluorescence transient (OJIP) curve, disrupting energy flow and electron transport in photosystem II (PSII), as reflected in the O-J, J-I, and I-P phases, along with the emergence of a positive K-band indicating damage to the oxygen-evolving complex (OEC). Silicon application mitigated these effects, stabilizing the OEC and thylakoid membrane integrity while improving JIP test parameters and reducing excessive energy absorption, dissipation, and unregulated energy loss per reaction center. Silicon-treated plants under salt stress exhibited enhanced photochemical quenching, reduced regulatory energy dissipation, and decreased photosystem I (PSI) over-reduction. A significant increase in open PSI centers was observed, improving the balance and functionality between PSI and photosystem II. The application of Si resulted in significant photosynthetic improvements, which were also paired with enhanced morphological traits, such as increased root length and leaf thickness in saline conditions. Overall, findings indicate that exogenous Si helps to reduce salt-induced stress by enhancing photosynthetic efficiency in plants, positioning it as a promising strategy for improving crop performance in saline environments.
dc.affiliationWydział Inżynierii Środowiska i Inżynierii Mechanicznej
dc.affiliation.instituteKatedra Bioklimatologii
dc.contributor.authorRaihan, Md. Rakib Hossain
dc.contributor.authorAntala, Michał
dc.contributor.authorStróżecki, Marcin Grzegorz
dc.contributor.authorHaque, Mohammad Intesaful
dc.contributor.authorHasanuzzaman, Mirza
dc.contributor.authorJuszczak, Radosław
dc.contributor.authorRastogi, Anshu
dc.date.access2025-10-10
dc.date.accessioned2025-10-10T09:35:42Z
dc.date.available2025-10-10T09:35:42Z
dc.date.copyright2025-06-02
dc.date.issued2025
dc.description.abstract<jats:title>Abstract</jats:title> <jats:p>This study aimed at investigating the protective role of silicon (Si) in mitigating salt-induced damage in common buckwheat plants (<jats:italic>Fagopyrum esculentum</jats:italic> cv. Smuga). Twenty one-day-old seedlings were subjected to salt stress by irrigating 50 mM sodium chloride solutions for seven days, with or without Si (two foliar applications with 1 mM sodium metasilicate nonahydrate). Salt stress significantly altered the chlorophyll <jats:italic>a</jats:italic> fluorescence transient (OJIP) curve, disrupting energy flow and electron transport in photosystem II (PSII), as reflected in the O-J, J-I, and I-P phases, along with the emergence of a positive K-band indicating damage to the oxygen-evolving complex (OEC). Silicon application mitigated these effects, stabilizing the OEC and thylakoid membrane integrity while improving JIP test parameters and reducing excessive energy absorption, dissipation, and unregulated energy loss per reaction center. Silicon-treated plants under salt stress exhibited enhanced photochemical quenching, reduced regulatory energy dissipation, and decreased photosystem I (PSI) over-reduction. A significant increase in open PSI centers was observed, improving the balance and functionality between PSI and photosystem II. The application of Si resulted in significant photosynthetic improvements, which were also paired with enhanced morphological traits, such as increased root length and leaf thickness in saline conditions. Overall, findings indicate that exogenous Si helps to reduce salt-induced stress by enhancing photosynthetic efficiency in plants, positioning it as a promising strategy for improving crop performance in saline environments.</jats:p>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if3,9
dc.description.points140
dc.description.versionfinal_published
dc.description.volume15
dc.identifier.doi10.1038/s41598-025-04159-1
dc.identifier.issn2045-2322
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/5368
dc.identifier.weblinkhttps://www.nature.com/articles/s41598-025-04159-1
dc.languageen
dc.relation.ispartofScientific Reports
dc.relation.pagesart. 19343
dc.rightsCC-BY
dc.sciencecloudnosend
dc.share.typeOPEN_JOURNAL
dc.subject.ensalinity
dc.subject.enionic stress
dc.subject.enoxidative stress
dc.subject.enOJIP transient
dc.subject.enJIP test
dc.subject.enphotosynthesis
dc.titleSilicon-induced photosynthetic adaptations in common buckwheat under salt stress revealed by prompt chlorophyll a fluorescence analysis
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue1
oaire.citation.volume15