Effects of lanthanum on the growth and essential oil components of lavender under osmotic stress

作     者：Liyun Zhu Linzhen Song Yongsheng Gao Junqing Qian Xiaodong Zhang Sufang Li 

作者机构：College of Modem Science and Technology China Jiliang University Hangzhou 310018 China Anhui Hanfang Bio-tech Co. Ltd. Huaibei 235000 China National & Local United Engineering Lab of Quality Controlling Technology and Instrumentation for Marine Food China Jiliang University Hangzhou 310018 China College of Biotechnology and Bioengineering Zhejiang University of Technology Hangzhou 310012 China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2018年第36卷第8期

页      面：891-897页

核心收录：

学科分类：081702[工学-化学工艺] 0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 0817[工学-化学工程与技术] 09[农学] 0708[理学-地球物理学] 0901[农学-作物学] 0703[理学-化学] 

基　　金：Project supported by the National Natural Science Foundation of China(31371765) International Cooperation Project(40-16) Zhejiang Province Key Science and Technology Innovation Team Project(2010R50028) 

主　　题：Lanthanum Lavender Essential oil Secondary metabolites Osmotic stress Rare earths 

摘      要：The effects of lanthanum on growth, soluble sugar content, essential oil contents and quality were studied in lavender plant（Lavandula Angustifolia Mill, Variety 701） under osmotic stress by means of PEG-6000 solution. The results show that osmotic stress could reduce the growth rate of lavender, and increase the content of SSC（soluble sugar concentration） to some extent. Compared with control group,the contents of essential oil in flowers and leaves respectively increase by 45.6% and 48.3% in the osmotic stress group induced by 15% PEG-6000. However, the presence of lanthanum can make the contents of essential oil in the flowers and leaves of stressed lavender plants enhance by 19.4% and 18.6%, respectively. Under osmotic stress, the relative contents of four kinds of lavender essential oil compositions of camphor, linalool, linalyl acetate and lavandulol acetate in the lavender flowers were successively 22.63%,0.61%,25.46%,7.03%,and 20.17%,0.62%,20.72%,10.80%,respectively in the presence and absence of lanthanum. The contents of all four main components of lavender essential oils meet the requirements of the national standard under osmotic stress in the presence of lanthanum. However, in the absence of lanthanum, the contents of linalyl acetate and lavandulol acetate does not meet the requirements of the national standard under osmotic stress. Moreover, the contents of five components of borneol, camphor,eudesmol, caryophyllene oxide and bicyclic sesquiphellandrene from the essential oil of lavender leaves are 12.89%, 3.84%, 8.76%, 11.30% and 8.10%, respectively. The total content of above five components accounts for 44.89% of the essential oil of the lavender leaves. Particularly, the borneol content in leaf essential oil is up to 12.89%. It is 125.2 times the amount of borneol in the flower essential oil. In conclusion, the suitable concentration of lanthanum can improve the adaptability of lavender plants, and heighten the content and quality of lavender essential oil to some extent under osmotic stress.