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dc.creatorAntonić, Dragana
dc.creatorMilošević, Snežana
dc.creatorCingel, Aleksandar
dc.creatorLojić, M.
dc.creatorTrifunović-Momčilov, Milana
dc.creatorMarković, Marija
dc.creatorSubotić, Angelina
dc.creatorSimonović, Ana
dc.date.accessioned2016-11-28T12:51:18Z
dc.date.available2016-11-28T12:51:18Z
dc.date.issued2016
dc.identifier.issn0254-6299
dc.identifier.urihttp://www.scopus.com/inward/record.url?eid=2-s2.0-84963773069&partnerID=tZOtx3y1
dc.identifier.urihttps://ibiss-r.rcub.bg.ac.rs/handle/123456789/2470
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0254629915326594?via%3Dihub
dc.description.abstractWe describe the responses of Impatiens walleriana to polyethylene glycol (PEG)-induced physiological drought and the potential of exogenous salicylic acid (SA) as stress-ameliorating agent. Impatiens shoot culture was established on 16 different media containing 0-3% PEG and 0-3 mM SA. After prolonged drought (60 days), water relation parameters, oxidative stress indicators, and growth responses of the shoots to PEG and/or SA were recorded. PEG reduced growth, fresh weight, the number of developed leaves and shoots (proliferation rate, PR), relative water content, and chlorophyll content. PEG increased leaf water loss (LWL) and caused accumulation of proline, H2O2, and malondialdehyde. The activities of catalase, superoxide dismutase, and peroxidase were increased in response to PEG in a dose-dependent manner, with specific peroxidase isoforms induced by drought. Exogenous SA counteracted the effects of PEG on growth, physiological and biochemical parameters, except on proline accumulation. SA was particularly effective in enhancing PR, preserving LWL, and protecting photosynthetic pigments and membranes from oxidative damage. Proline accumulation was strongly enhanced by both PEG and SA. SA had differential effects on different peroxidase isoforms. SA may be safely used in 2-3 mM concentration for drought protection of Impatiens with no negative effects.
dc.publisherElsevier
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/31019/RS//
dc.rightsopenAccess
dc.sourceSouth African Journal of Botany
dc.subjectDrought
dc.subjectImpatiens walleriana
dc.subjectPolyethylene glycol
dc.subjectReactive oxygen species
dc.subjectSalicylic acid
dc.subjectWater stress
dc.titleEffects of exogenous salicylic acid on Impatiens walleriana L. grown in vitro under polyethylene glycol-imposed drought
dc.typearticle
dc.rights.licenseBY
dcterms.abstractПетрић, М.; Лојић, М.; Aнтонић, Д.; Трифуновић-Момчилов, М.; Цингел, A.; Милошевић, С.; Симоновић, A.; Суботић, Aнгелина;
dc.rights.holder© 2016 South African Association of Botanists.
dc.citation.volume105
dc.identifier.doi10.1016/j.sajb.2016.04.002
dc.identifier.scopus2-s2.0-84963773069
dc.identifier.wos000377302600025
dc.citation.spage226
dc.citation.epage233
dc.type.versionpublishedVersionen
dc.identifier.fulltexthttp://ibiss-r.rcub.bg.ac.rs/bitstream/id/7340/1-s2.0-S0254629915326594-main.pdf
dc.citation.rankM22


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