Alternative electron sinks in chloroplasts and mitochondria of halophytes as a safety valve for controlling ROS production during salinity

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dc.authoridUzilday, Baris/0000-0001-8168-056X
dc.authoridDemircan, Nil/0000-0003-0962-3864
dc.authoridDietz, Karl-Josef/0000-0003-0311-2182
dc.contributor.authorDemircan, Nil
dc.contributor.authorSonmez, Mustafa Cemre
dc.contributor.authorAkyol, Turgut Yigit
dc.contributor.authorOzgur, Rengin
dc.contributor.authorTurkan, Ismail
dc.contributor.authorDietz, Karl-Josef
dc.contributor.authorUzilday, Baris
dc.date.accessioned2024-08-31T07:50:03Z
dc.date.available2024-08-31T07:50:03Z
dc.date.issued2024
dc.departmentEge Üniversitesien_US
dc.description.abstractElectron flow through the electron transport chain (ETC) is essential for oxidative phosphorylation in mitochondria and photosynthesis in chloroplasts. Electron fluxes depend on environmental parameters, e.g., ionic and osmotic conditions and endogenous factors, and this may cause severe imbalances. Plants have evolved alternative sinks to balance the reductive load on the electron transport chains in order to avoid overreduction, generation of reactive oxygen species (ROS), and to cope with environmental stresses. These sinks act primarily as valves for electron drainage and secondarily as regulators of tolerance-related metabolism, utilizing the excess reductive energy. High salinity is an environmental stressor that stimulates the generation of ROS and oxidative stress, which affects growth and development by disrupting the redox homeostasis of plants. While glycophytic plants are sensitive to high salinity, halophytic plants tolerate, grow, and reproduce at high salinity. Various studies have examined the ETC systems of glycophytic plants, however, information about the state and regulation of ETCs in halophytes under non-saline and saline conditions is scarce. This review focuses on alternative electron sinks in chloroplasts and mitochondria of halophytic plants. In cases where information on halophytes is lacking, we examined the available knowledge on the relationship between alternative sinks and gradual salinity resilience of glycophytes. To this end, transcriptional responses of involved components of photosynthetic and respiratory ETCs were compared between the glycophyte Arabidopsis thaliana and the halophyte Schrenkiella parvula, and the time-courses of these transcripts were examined in A. thaliana. The observed regulatory patterns are discussed in the context of reactive molecular species formation in halophytes and glycophytes.en_US
dc.identifier.doi10.1111/ppl.14397
dc.identifier.issn0031-9317
dc.identifier.issn1399-3054
dc.identifier.issue3en_US
dc.identifier.pmid38894507en_US
dc.identifier.scopus2-s2.0-85196202146en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1111/ppl.14397
dc.identifier.urihttps://hdl.handle.net/11454/105100
dc.identifier.volume176en_US
dc.identifier.wosWOS:001250155900001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofPhysiologia Plantarumen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240831_Uen_US
dc.subjectPlastid Terminal Oxidaseen_US
dc.subjectSalt Stress-Responseen_US
dc.subjectWater-Water Cycleen_US
dc.subjectReactive Oxygenen_US
dc.subjectUncoupling Proteinen_US
dc.subjectArabidopsis-Thalianaen_US
dc.subjectAntioxidant Responseen_US
dc.subjectPhotosynthetic Apparatusen_US
dc.subjectPlant Peroxiredoxinsen_US
dc.subjectThioredoxin Systemsen_US
dc.titleAlternative electron sinks in chloroplasts and mitochondria of halophytes as a safety valve for controlling ROS production during salinityen_US
dc.typeReview Articleen_US

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