Insecticidal Activities and Phenological Variations of Characteristic Component from Michelia yunnanensis

IF 1.6 4区农林科学 Q3 CHEMISTRY, APPLIED

Journal of oleo science Pub Date : 2024-05-01 DOI:10.5650/jos.ess23136

Yi-Xi Feng, Xin-Xin Lu, Jia-Wei Zhang, Yue-Shen Du, Yu Zheng, Shu-Shan Du

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引用次数: 0

Abstract

Volatile secondary metabolites of plants interact with environments heavily. In this work, characteristic components of Michelia yunnanensis essential oils (EOs) were isolated, purified and identified by column chromatography, GC-MS and NMR. Leaves of M. yunnanensis were collected monthly and extracted for EOs to investigate chemical and insecticidal activity variations as well as potential influencing environments. Different organs were employed to reveal distribution strategies of characteristic components. Results of insecticidal activities showed that all EOs samples exerted stronger contact activity to Lasioderma serricorne, but repellent effect was more efficient on Tribolium castaneum. One oxygenated sesquiterpene was isolated from EOs, basically it could be confirmed as (+)-cyclocolorenone (1). It exerted contact toxicity to L. serricorne (LD ₅₀ = 28.8 μg/adult). Chemical analysis showed that M. yunnanensis leaves in reproductive period would produce and accumulate more 1 than in vegetative period. Moreover, reproductive organs (flowers and fruits) contained more 1 than vegetative organs (leaves and twigs). Partial correlation analysis indicated that temperature-related elements positively correlated with the relative content of 1.

graphical abstract Fullsize Image

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云南紫云英特征成分的杀虫活性和时序变化

植物的挥发性次生代谢物与环境有很大的相互作用。本研究采用柱层析、气相色谱-质谱（GC-MS）和核磁共振（NMR）技术分离、纯化和鉴定了云南白药（Michelia yunnanensis）精油（EOs）的特征成分。每月采集云南白药叶片并提取精油，研究其化学和杀虫活性的变化以及潜在的影响环境。采用不同器官揭示特征成分的分布策略。杀虫活性结果表明，所有的环氧乙烷样品对 Lasioderma serricorne 都有较强的接触活性，但对 Tribolium castaneum 的驱避效果更好。从环氧乙烷中分离出了一种含氧倍半萜，基本上可以确认为 (+)- 环小茴香酮（1）。它对 L. serricorne 具有接触毒性（LD 50 = 28.8 μg/成虫）。化学分析显示，云南金丝桃叶片在生殖期比无性繁殖期产生和积累更多的 1。此外，生殖器官（花和果实）比无性器官（叶和枝）含有更多的 1。偏相关分析表明，温度相关元素与 1 的相对含量呈正相关。

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来源期刊

Journal of oleo science CHEMISTRY, APPLIED-FOOD SCIENCE & TECHNOLOGY

CiteScore

3.20

自引率

6.70%

发文量

173

审稿时长

3 months

期刊介绍： The J. Oleo Sci. publishes original researches of high quality on chemistry, biochemistry and science of fats and oils such as related food products, detergents, natural products, petroleum products, lipids and related proteins and sugars. The Journal also encourages papers on chemistry and/or biochemistry as a major component combined with biological/ sensory/nutritional/toxicological evaluation related to agriculture and/or food.