Comparative Analysis of Volatile Terpenoids Composition in Rosemary Leaves in Response to Ionizing Radiation. Issue 3 (3rd May 2020)

• Record Type: Journal Article
• Authors: Chung, Moon-Soo; Lee, Gun Woong; Lee, Seung Sik; Chung, Byung Yeoup; Lee, Sungbeom
• Is Part Of: Journal of essential oil-bearing plants. Volume 23:Issue 3(2020)
• Page Start: 594
• Page End: 600
• Publication Date: 2020-05-03
• Subjects: Volatile compounds -- mono-/sesquiterpenes -- compositional analysis -- rosemary leaves -- gamma-irradiation; Essences and essential oils -- Periodicals; Aromatic plants -- Biotechnology -- Periodicals; Oilseed plants -- Biotechnology -- Periodicals; Aromatic plants -- Periodicals; Oilseed plants -- Periodicals; 661.80605
• DOI: 10.1080/0972060X.2020.1782775
• Languages: English
• ISSNs: 0972-060X

Abstract

Abstract: This study examined differential regulation of volatile terpenoids produced by rosemary ( Rosmarinus officinalis L.) leaves in response to ionizing irradiation. Headspace volatile collection from rosemary leaves by solid-phase microextraction-gas chromatography-mass spectrometry analyses revealed that rosemary leaves biologically synthesized 26 species of volatile terpenoids and their relative ratio were changed after the exposure to γ-irradiation. Relative ratio of oxygenated monoterpenes such as borneol, (-)-verbenone, lemonol, and bornyl acetate (except for 1, 8-cineol, linalool, chrysanthenone, camphor, and (+)-verbenone) and sesquiterpene hydrocarbons (i.e., caryophyllene-type) increased when the rosemary leaves were exposed to γ-ray in a dose-dependent manner. On the contrary, the change of the ratio of oxygenated sesquiterpenes such as caryophyllene oxide was negligible, and that of monoterpene hydrocarbons like α-pinene, camphene, myrcene, and limonene was down-regulated. These results indicate that γ-irradiation can modify chemical structures of volatile terpenes, and can, thus, be applied to reconstitute chemical constituents in aromatic plants.