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Chemical Profile and Phytotoxic Action of Hibiscus trionum Essential Oil |
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| Authors: | Shi-Xing Zhou Xun-Zhi Zhu Cai-Xia Wei Kai Shi Cai-Xia Han Chi Zhang Hua Shao |
| Institution: | 1. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011 P. R. China
University of Chinese Academy of Sciences, Beijing, 100049 P. R. China These authors contributed equally to this work.;2. Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014 P. R. China These authors contributed equally to this work.;3. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011 P. R. China;4. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011 P. R. China University of Chinese Academy of Sciences, Beijing, 100049 P. R. China;5. Research Center for Ecology and Environment of Central Asia, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011 P. R. China |
| Abstract: | The chemical profile and phytotoxic action of Hibiscus trionum essential oil (EO) was studied. In total 17 compounds were identified via GC/MS, representing 94.18 % of the entire oil, with phytol (40.37 %) being the dominant constituent. Bioassay revealed that the EO inhibited root elongation of Medicago sativa and Amaranthus retroflexus by 32.66 % and 61.86 % at 5 mg/mL, respectively; meanwhile, the major component phytol also exhibited significant phytotoxic activity, suppressing radical elongation of Pennisetum alopecuroides, M. sativa and A. retroflexus by 26.08 %, 27.55 % and 43.96 % at 1 mg/mL, respectively. The fact that the EO showed weaker activity than phytol implied that some constituents might trigger antagonistic action to decrease the oil's activity. Our study is the first on the chemical profile and phytotoxic effect of H. trionum EO. |
| Keywords: | Hibiscus trionum phytotoxic activity chemical composition essential oil phytol |