COMPARATIVE STUDY OF OSMOTIC STRESS EFFECTS ON THE DEFENSE MECHANISMS ANDSECONDARY METABOLITES IN CARUM COPTICUM SEEDLING AND CALLUS

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RAZAVIZADEH ROYA; ADABAVAZEH FATEMEH; ROSTAMI FATEMEH; TEIMOURI ABBAS

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Journal: JOURNAL OF PLANT PROCESS AND FUNCTION Year:2017 | Volume:5 | Issue:18 Page(s): 23-33

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Title

COMPARATIVE STUDY OF OSMOTIC STRESS EFFECTS ON THE DEFENSE MECHANISMS ANDSECONDARY METABOLITES IN CARUM COPTICUM SEEDLING AND CALLUS

Author(s)

RAZAVIZADEH ROYA | ADABAVAZEH FATEMEH | ROSTAMI FATEMEH | TEIMOURI ABBAS | Issue Writer Certificate

Keywords

ANTIOXIDANT ENZYMESQ2

CALLUSQ2

CARUM COPTICUMQ1

DROUGHT STRESSQ2

THYMOLQ2

Abstract

Carum copticum L. is a medicinal plant of the Apiaceae family with medicinal properties. In this study, the effects of DROUGHT STRESS on the photosynthetic pigments and essential oils as well as the enzymatic and non-enzymatic mechanisms of the seedlings and CALLUS of C. copticum were investigated within the framework of a controlled experiment under in vitro conditions. For this purpose, the seedlings of C. copticum were cultured in the Murashige and Skoog medium containing three levels (0, 3, and 6%) of either sorbitol or mannitol. Furthermore, its calli were independently cultured in the Murashige and Skoog (MS) medium containing 0.25 mg.L-1 2, 4-dichlorophenoxyacetic acid, 1 mg.L-1 benzyl amino purine, and differentl evels (0, 3, and 6%) of either sorbitol or mannitol. Both sorbitol and mannitol were found to reduce the photosyntheticpigments and carotenoid contents but increased the anthocyanin and flavonoid contents significantly. However, these effects were significantly more severe in plants submitted to mannitol, as compared to the sorbitol-treated ones. With the exception of the mannitol-treated leaf samples whose phenolic contents decreased with increasing drought concentration in the culturemedia, the phenolic contents in the other samples increased relative to those in the control samples. The ascorbate peroxidase activity was found to decrease in all the treated samples while the catalase activity greatly increased, particularly in the mannitol-stressed plants. Compared to the control, drought led to a significant increase in superoxide dismutase activity in all the samples treated with 6% sorbitol and in the calli samples treated with 3% mannitol, whereas the seedlings grown under mannitol treatment showed almost no difference with the control plants. In addition, DROUGHT STRESS changed the essential oilcompounds of both the seedlings and the calli of C. copticum. Analysis of the essential oil constituents by Gaschromatography–Mass Spectrometry (GC–MS) showed THYMOL, gamatherpinen, and parasimen to be the main essential oilcomponents which increased in quantity under high stress conditions. These bioactive compounds have many industrial andmedicinal applications.

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APA: Copy

RAZAVIZADEH, ROYA, ADABAVAZEH, FATEMEH, ROSTAMI, FATEMEH, & TEIMOURI, ABBAS. (2017). COMPARATIVE STUDY OF OSMOTIC STRESS EFFECTS ON THE DEFENSE MECHANISMS ANDSECONDARY METABOLITES IN CARUM COPTICUM SEEDLING AND CALLUS. JOURNAL OF PLANT PROCESS AND FUNCTION, 5(18), 23-33. SID. https://sid.ir/paper/234246/en

Vancouver: Copy

RAZAVIZADEH ROYA, ADABAVAZEH FATEMEH, ROSTAMI FATEMEH, TEIMOURI ABBAS. COMPARATIVE STUDY OF OSMOTIC STRESS EFFECTS ON THE DEFENSE MECHANISMS ANDSECONDARY METABOLITES IN CARUM COPTICUM SEEDLING AND CALLUS. JOURNAL OF PLANT PROCESS AND FUNCTION[Internet]. 2017;5(18):23-33. Available from: https://sid.ir/paper/234246/en

IEEE: Copy

ROYA RAZAVIZADEH, FATEMEH ADABAVAZEH, FATEMEH ROSTAMI, and ABBAS TEIMOURI, “COMPARATIVE STUDY OF OSMOTIC STRESS EFFECTS ON THE DEFENSE MECHANISMS ANDSECONDARY METABOLITES IN CARUM COPTICUM SEEDLING AND CALLUS,” JOURNAL OF PLANT PROCESS AND FUNCTION, vol. 5, no. 18, pp. 23–33, 2017, [Online]. Available: https://sid.ir/paper/234246/en

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