Changes in secondary metabolites and essential oil contents in black cumin (Nigella saliva L.) in response to drought stress

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dc.contributor.authorErdogdu, Yasemin
dc.contributor.authorGok, Sila Barut
dc.contributor.authorGocmen, Erhan
dc.date.accessioned2025-04-06T12:23:39Z
dc.date.available2025-04-06T12:23:39Z
dc.date.issued2024
dc.departmentTekirdağ Namık Kemal Üniversitesi
dc.description.abstractWater stress is one of the foremost stress factors affecting the production of secondary metabolites in plants. The aim of the research was to evaluate the response of black cumin ( Nigella sativa L.) to water stress in terms of bioactive compounds and essential oil constituents in a semi-arid region (Thrace region, T & uuml;rkiye). Black cumin seeds were subjected to six irrigation regimes (I0, I25, I50, I75, I 100 , I125). The total phenolic contents of extracts decreased significantly by about 0.39-0.59-fold under irrigation regimes from I 75 to I 125 , compared to the drought stress conditions (I0). Irrigation regimes, except over-irrigation (I125) and low water deficit (I75) conditions, had no significant effect on the antioxidant activity. The highest flavonoid content recorded under the over-irrigation regime was 406.6 +/- 4.6 mg QE g-1. The effect of irrigation on essential oil content was statistically significant. The lowest thymoquinone content was obtained under the drought stress conditions (I0), while the highest thymoquinone content was obtained from the high-water deficit conditions (I25). Based on principal component analysis, carvacrol and 4-terpineol were the most determinant compounds involved in adaptation to drought stress, and the most determinant component for low water stress was thymoquinone, which had the highest rate in the study.
dc.description.sponsorshipScientific and Technical Research Council of Turkiye [1210140]
dc.description.sponsorshipThis work was supported by the [The Scientific and Technical Research Council of Turkiye] under Grant [project number 1210140] .
dc.identifier.doi10.5073/JABFQ.2024.097.016
dc.identifier.endpage139
dc.identifier.issn1439-040X
dc.identifier.scopus2-s2.0-85211234389
dc.identifier.scopusqualityQ2
dc.identifier.startpage133
dc.identifier.urihttps://doi.org/10.5073/JABFQ.2024.097.016
dc.identifier.urihttps://hdl.handle.net/20.500.11776/17097
dc.identifier.volume97
dc.identifier.wosWOS:001352962400001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherJulius Kuhn Inst - Jki
dc.relation.ispartofJournal of Applied Botany and Food Quality
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250406
dc.subjectNigella sativa L.
dc.subjectdrought stress
dc.subjectbioactive constituents
dc.subjectthymoquinone
dc.subjectessential oil
dc.titleChanges in secondary metabolites and essential oil contents in black cumin (Nigella saliva L.) in response to drought stress
dc.typeArticle

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