Extraction and Identification of Volatile Organic Compounds Emitted by Fragrant Flowers of Three Tillandsia Species by HS-SPME/GC-MS

Metabolites

Roland Molinié¹  Jean-Xavier Fontaine¹  Patrick Meffre²  Mame-Marietou Lo²  David Bénimélis²  Zohra Benfodda² 

[1] UMR INRAE 1158 Transfrontaliére BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, UFR de Pharmacie, 80037 Amiens, France;UNIV. NIMES, UPR CHROME, CEDEX 1, F-30021 Nîmes, France;

关键词: Tillandsia xiphioides;    Tillandsia crocata;    Tillandsia caliginosa;    headspace solid phase microextraction (HS-SPME);    gas chromatography-mass spectrometry (GC-MS);    volatile organic compounds (VOCs);   

DOI  :  10.3390/metabo11090594

来源: DOAJ

【 摘 要 】

Numerous volatile organic compounds (VOCs) with a large chemical diversity are emitted by plant flowers. They play an important role in the ecology of plants, such as pollination, defense, adaptation to their environment, and communication with other organisms. The Tillandsia genus belongs to the Bromeliaceae family, and most of them are epiphytes. The aromatic profile of the Tillandsia genus is scarcely described. In this study, we use the headspace solid phase microextraction (HS-SPME) coupled with gas chromatography combined with mass spectrometry (GC-MS) method developed in our laboratory to explore the chemical diversity of the VOCs of fragrant flowers of three species of the genus Tillandsia. We were able to identify, for the first time, 66 volatile compounds (monoterpenes, sesquiterpenes, phenylpropanoids, and other compounds). We identified 30 compounds in T. xiphioides, 47 compounds in T. crocata, and 43 compounds in T. caliginosa. Only seven compounds are present in all the species studied. Comparison of the volatile compounds profiles by principal component analysis (PCA) between T. xiphoides, T. crocata, and T. caliginosa species showed a clear difference in the floral emissions of the studied species. Moreover, floral VOCs profiles allowed to differentiate two forms of T. xiphioides and of T. crocata.

【 授权许可】

Unknown