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应用生态学报 ›› 2020, Vol. 31 ›› Issue (7): 2195-2201.doi: 10.13287/j.1001-9332.202007.002

• 植物化感作用专栏 • 上一篇    下一篇

桉树油化学成分分析及α-松油醇的化感作用

李奥欣1, 侯新村2, 曾加佳1, 魏芸1*   

  1. 1北京化工大学化工资源有效利用国家重点实验室, 北京 100029;
    2北京市农林科学院草业与环境研究发展中心, 北京 100097
  • 收稿日期:2020-01-01 接受日期:2020-03-10 出版日期:2020-07-15 发布日期:2021-01-15
  • 通讯作者: E-mail: weiyun@mail.buct.edu.cn
  • 作者简介:李奥欣, 女, 1992年生, 博士研究生。主要从事天然产物分析及活性研究。E-mail: for_chem@163.com
  • 基金资助:
    国家科技重大专项(2019ZX09301-114)资助

Chemical composition analysis of Eucalyptus essential oil and allelopathic effects of α-terpineol

LI Ao-xin1, HOU Xin-cun2, ZENG Jia-jia1, WEI Yun1*   

  1. 1State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
    2Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
  • Received:2020-01-01 Accepted:2020-03-10 Online:2020-07-15 Published:2021-01-15
  • Contact: E-mail: weiyun@mail.buct.edu.cn
  • Supported by:
    This work was supported by the National Science and Technology Major Project (2019ZX09301-114).

摘要: 采用水蒸气蒸馏法提取桉树油,通过GC-MS对其成分进行分析,以其中一种化学成分α-松油醇为代表,分别采用培养皿和盆栽试验研究其对反枝苋的化感作用。结果表明: 水蒸气蒸馏法提取桉树油的产率为0.04%,经GC-MS分析,在桉树油中共检测到92种化学成分。在培养皿条件下,α-松油醇对反枝苋的发芽和生长均具有明显的抑制作用,用量达到每皿5 和7.5 μL时,抑制率均达到100%。盆栽条件下,α-松油醇处理过的土壤会显著影响反枝苋的出苗率、地上鲜重和地上干重,浓度达到1.6 μL·cm-3时,抑制作用最大,其化感响应指数分别为-0.51、-0.62和-0.44,抑制率为51%、62%和44%。

关键词: 桉树, 反枝苋, 挥发油, α-松油醇

Abstract: We extracted Eucalyptus essential oil by steam distillation and analyzed its chemical components by GC-MS. The inhibitory effects of α-terpineol, a component in Eucalyptus essential oil, were tested in Petri dishes on the germination and growth of Amaranthus retroflexus. The allelopathic effects of α-terpineol on A. retroflexus were examined with a pot experiment by measuring germination rate and biomass. The yield of essential oil was 0.04%. Ninety-two chemical components were detected from the essential oil. In Petri dish experiment, the germination inhibitory effect under 5 μL and 7.5 μL of α-terpineol per dish reached 100%. In pot experiment, germination, aboveground fresh and dry weights of A. retroflexus were significantly affected by α-terpineol. At the concentration of 1.6 μL·cm-3, the inhibition effect was strongest, with the allelopathic response index being -0.51 for germination, -0.62 for aboveground fresh weight, and -0.44 for aboveground dry weight, and the inhibition ratio being 51%, 62% and 44%, respectively.

Key words: Eucalyptus, Amaranthus retroflexus, essential oil, α-terpineol