Comparative Evaluation of Biochemical Responses of Callus Cultures of Cichorium endivia L. and Cichorium intybus L. to In vitro Salinity Stress
Abstract
In this study, the responses of callus cultures of Cichorium endivia L. and Cichorium intybus L. to in vitro salt stress (0, 50, 100, and 150 mM NaCl) on MS medium were comparatively investigated. Callus morphology (structure and color) and growth parameters (fresh and dry weight) were evaluated alongside key biochemical indicators, including hydrogen peroxide (H₂O₂) and malondialdehyde (MDA) contents, antioxidant enzyme activities (Superoxide dismutase: SOD, Catalase: CAT, and Peroxidase: POD), and soluble protein levels. Principal component analysis (PCA) and heatmap visualization were applied to elucidate relationships among the measured variables and treatment effects. The results demonstrated that increasing salinity significantly influenced both morphological and biochemical responses, with clear interspecific differences. Cichorium intybus exhibited comparatively higher tolerance, as enhanced CAT and POD activities partially alleviated oxidative stress at moderate salinity levels (50-100 mM NaCl). In contrast, C. endivia showed pronounced oxidative stress responses even at lower salt concentrations, and no callus formation was observed at 150 mM NaCl. Overall, the findings indicate that C. intybus displays greater salinity tolerance under in vitro conditions, highlighting its potential for future stress physiology and breeding studies.
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References
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Details
Primary Language
English
Subjects
Horticultural Production (Other)
Journal Section
Research Article
Authors
Publication Date
August 14, 2026
Submission Date
April 22, 2026
Acceptance Date
July 15, 2026
Published in Issue
Year 2026 Volume: 43 Number: 2