干旱和盐度对酸橙叶片挥发性有机化合物及其他次生代谢产物的影响

Effect of Drought and Salinity on Volatile Organic Compounds and Other Secondary Metabolites of Citrus aurantium Leaves.

作者信息

Eirini Sarrou, Paschalina Chatzopoulou, Loannis Therios, Kortessa Dimassi-Theriou

出版信息

Nat Prod Commun. 2017 Feb;12(2):193-196.

Abstract

Research was carried out in order to evaluate the effect of drought and salinity on Citrus aurantium L. plant physiological characteristics, total phenolic, flavonoid and ascorbic acid contents, and volatile organic compounds. C. aurantium plants were exposed to different levels of drought and salinity for an experimental period of 60 days. Moderate water deficit (MWD) and 100 mM NaCl increased significantly leaf total phenolic, flavonoid and ascorbic acid contents. Both drought and salinity promoted the accumulation of essential oil in leaves, while MWD and 100 mM NaCl resulted in the highest concentrations of essential oil. The main compounds of the essential oil were linalool, linalyl acetate, neryl acetate, geranyl acetate and a-terpineol. MWD and severe water deficit (SWD) reduced the concentration of hydrocarbon monoterpenes and promoted the accumulation of oxygenated compounds, while treatment with 50 and 100 Mi NaCl, promoted the accumulation of hydrocarbon monoterpenes and reduced oxygenated monoterpene concentrations in C. aurantium.

摘要

开展本研究是为了评估干旱和盐度对酸橙植株生理特性、总酚、类黄酮和抗坏血酸含量以及挥发性有机化合物的影响。酸橙植株在不同水平的干旱和盐度条件下暴露60天进行实验。中度水分亏缺（MWD）和100 mM NaCl显著提高了叶片总酚、类黄酮和抗坏血酸含量。干旱和盐度均促进了叶片中精油的积累，而MWD和100 mM NaCl导致精油浓度最高。精油的主要成分是芳樟醇、乙酸芳樟酯、乙酸橙花酯、乙酸香叶酯和α-松油醇。MWD和重度水分亏缺（SWD）降低了烃类单萜的浓度并促进了含氧化合物的积累，而50和100 mM NaCl处理则促进了酸橙中烃类单萜的积累并降低了含氧化合物单萜的浓度。