Comparative Analysis of Morphological, Physiological, Anatomic and Biochemical Responses in Relatively Sensitive Zinnia elegans 'Zinnita Scarlet' and Relatively Tolerant Zinnia marylandica 'Double Zahara Fire Improved' under Saline Conditions

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dc.authoridyasemin, sara/0000-0003-2193-6791
dc.contributor.authorYasemin, Sara
dc.contributor.authorKoksal, Nezihe
dc.date.accessioned2024-12-24T19:33:37Z
dc.date.available2024-12-24T19:33:37Z
dc.date.issued2023
dc.departmentSiirt Üniversitesi
dc.description.abstractSalinity is one of the major abiotic stresses in plants. The aim of the present study was to determine the effects of salinity on relatively sensitive Zinnia elegans Jacq. 'Zinnita Scarlet' and relatively tolerant Zinnia marylandica D.M. Spooner et al. 'Double Zahara Fire Improved' through a comparative analysis of morphological, physiological, anatomic, and biochemical traits. Plants were irrigated at five levels of salt concentrations (0 [control], 50, 100, 150, 200 mM NaCl) for three weeks at one-day intervals in pots under greenhouse conditions. The effects of salinity stress on plant growth parameters, ion leakage, the loss of turgidity, minimum fluorescence (F-O'), plant nutrient elements, leaf anatomic parameters, stoma response to the application of light and abscisic acid perfusion, proline content, chlorophyll a, b and total chlorophyll, and carotenoid content were investigated. Differences in the stages and levels of plant response in the relatively sensitive and relatively tolerant cultivar were determined. Proline accumulation appeared to be higher in Double Zahara Fire Improved (D.Za.F.I.) than Zinnita Scarlet (Zi.S.) in the low concentration of salinity. After the application of abscsic acid perfusion to intact leaf surfaces, the stomata of the relatively tolerant cultivar D.Za.F.I. closed earlier (7 min) than Zi.S. (29 min). Ion leakage (32.3%) and Na accumulation (0.9%) in the aerial parts increased dramatically for Zi.S in the 50 mM NaCl treatment. Moreover, values of plant growth parameters, minimum fluorescence (F-O'), photosynthetic pigments, and plant nutrient elements all showed a greater decreasing percentage in Zi.S. compared to D.Za.F.I. Stomatal densities for both the abaxial and adaxial surfaces of the leaf decreased in parallel with the increase in salt stress. Palisade parenchyma cell height and leaf thickness values decreased in Zi.S. as salinity increased. In D.Za.F.I., leaf thickness increased by up to 100 mM NaCl while the height of palisade parenchyma cells decreased under high salt stress conditions (100 mM and above). Recommendations for future research include molecular-level evaluations and the study of how to increase salt tolerance in these potentially valuable ornamental cultivars.
dc.description.sponsorship[FBA-2019-11481]
dc.description.sponsorshipThis research received no external funding.
dc.identifier.doi10.3390/horticulturae9020247
dc.identifier.issn2311-7524
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85149071984
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.3390/horticulturae9020247
dc.identifier.urihttps://hdl.handle.net/20.500.12604/8223
dc.identifier.volume9
dc.identifier.wosWOS:000944950700001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherMdpi
dc.relation.ispartofHorticulturae
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241222
dc.subjectabscisic acid
dc.subjection leakage
dc.subjectphotosynthetic pigments
dc.subjectplant nutrients
dc.subjectproline
dc.subjectstoma
dc.titleComparative Analysis of Morphological, Physiological, Anatomic and Biochemical Responses in Relatively Sensitive Zinnia elegans 'Zinnita Scarlet' and Relatively Tolerant Zinnia marylandica 'Double Zahara Fire Improved' under Saline Conditions
dc.typeArticle

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