scholarly journals Volatile Terpenes and Terpenoids from Workers and Queens of Monomorium chinense (Hymenoptera: Formicidae)

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2838 ◽  
Author(s):  
Rui Zhao ◽  
Lihua Lu ◽  
Qingxing Shi ◽  
Jian Chen ◽  
Yurong He
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
Solid Phase Microextraction ◽  
De Novo ◽  
Solid Phase ◽  
Mandibular Glands ◽  
Headspace Solid Phase Microextraction ◽  
Unknown Structure ◽  
Volatile Terpenes

Twenty-one volatile terpenes and terpenoids were found in Monomorium chinense Santschi (Hymenoptera: Formicidae), a native Chinese ant, by using headspace solid-phase microextraction (HS-SPME) coupled with gas-phase chromatography and mass spectrometry (GC-MS), which makes this ant one of the most prolific terpene producers in insect. A sesquiterpene with unknown structure (terpene 1) was the main terpene in workers and neocembrene in queens. Terpenes and terpenoids were detected in poison, Dufour’s and mandibular glands of both workers and queens. Worker ants raised on a terpene-free diet showed the same terpene profile as ants collected in the field, indicating that de novo terpene and terpenoid synthesis occurs in M. chinense.

scholarly journals Volatile Profiles of Five Variants of Abeliophyllum distichum Flowers Using Headspace Solid-Phase Microextraction Gas Chromatography–Mass Spectrometry (HS-SPME-GC-MS) Analysis

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 224
Author(s):  
Yeong-Geun Lee ◽  
Won-Sil Choi ◽  
Seung-Ok Yang ◽  
Jeon Hwang-Bo ◽  
Hyoun-Geun Kim ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Morphological Characteristics ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Components ◽  
Headspace Solid Phase Microextraction ◽  
Chromatography Mass Spectrometry ◽  
Abeliophyllum Distichum

Abeliophyllum distichum (Oleaceae), which is the only species in the monotypic genus and is grown only on the Korean peninsula, has a high scarcity value. Its five variants (white, pink, round, blue, and ivory) have different morphological characteristics in terms of the color of petals and sepals or shape of the fruits. Despite its high value, there has been no study on variant classification except in terms of their morphological characteristics. Thus, we performed a volatile component analysis of A. distichum flowers and multivariate data analyses to reveal the relationship between fragments emitted from five variants of A. distichum flowers with their morphological characteristics. As a result, 66 volatile components of this plant were identified by headspace solid-phase microextraction gas chromatography–mass spectrometry (HS-SPME-GC-MS), showing unique patterns for each set of morphological characteristics, especially the color of the petals. These results suggest that morphological characteristics of each variant are related to the volatile composition.

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