Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Feb 5;12(4):703.
doi: 10.3390/plants12040703.

Volatile Constituents from Catasetum (Orchidaceae) Species with Occurrence in the Brazilian Amazon

Franciléia M de Vasconcelos  1 , Eloisa Helena A Andrade  1 , Luiz Otávio A Teixeira  2 , Pablo Luis B Figueiredo  3 , José Guilherme S Maia  1   4
Affiliations

Volatile Constituents from Catasetum (Orchidaceae) Species with Occurrence in the Brazilian Amazon

Franciléia M de Vasconcelos et al. Plants (Basel). .

Abstract

Background: Catasetum Rich. ex Kunth is a genus of Neotropical orchids distributed in Central and South American regions. In the Brazilian Amazon, there are more than 60 species of Catasetum. The floral aromas of orchids are little known, particularly of Catasetum species. This work aimed to analyze the chemical constituents of the volatile concentrates of eight Catasetum specimens from the Amazon: C. alatum (1), C. albovirens (2), C. barbatum (1), C. ciliatum (2), C. galeritum (1), and C. gnomus (1).

Methods: Gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) analyzed and identified the constituents of the volatile concentrates, and principal component analysis (PCA) and hierarchical cluster analysis (HCA) were used in the multivariate statistical analysis.

Results: The Catasetum main constituents in descending order and above 10% were trans-geranylgeraniol, 1,4-dimethoxybenzene, linalool, 2-phenylethyl acetate, geraniol, 7-epi-1,2-dehydro-sesquicineole, 1,8-cineole, benzyl acetate, limonene, methyl salicylate, (E)-β-farnesene, anisyl butyrate, cis-carvone oxide, cadin-4-en-10-ol, indole, α-pinene, and δ-cadinene.

Conclusions: Multivariate statistical analysis of Catasetum species showed that C. barbatum, C. albovirens, and C. gnomus are distinct from the other studied species, while C. alatum, C. ciliatum, and C. galeritum presented the same primary classes of compounds. These results contribute to a better understanding of the genus Catasetum chemotaxonomy.

Keywords: 1,4-dimethoxybenzene; 2-phenylethyl acetate; 7-epi-1,2-dehydro-sesquicineole; benzyl acetate; floral scents; geraniol; linalool; olfactory signals; principal component and hierarchical cluster analyses; trans-geranylgeraniol.

PubMed Disclaimer

Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Catasetum alatum. (Source Luiz Otavio Adão).
Figure 2
Figure 2
Ion-chromatogram of the Catasetum alatum volatile concentrate.
Figure 3
Figure 3
Catasetum albovirens. (Source Luiz Otavio Adão).
Figure 4
Figure 4
Ion-chromatogram of the Catasetum albovirens volatile concentrates.
Figure 5
Figure 5
Catasetum barbatum. (Source Luiz Otavio Adão).
Figure 6
Figure 6
Ion-chromatogram of the Catasetum barbatum volatile concentrate.
Figure 7
Figure 7
Catasetum ciliatum. (Source Luiz Otavio Adão).
Figure 8
Figure 8
Ion-chromatogram of the Catasetum ciliatum volatile concentrates.
Figure 9
Figure 9
Catasetum galeritum. (Source Luiz Otavio Adão).
Figure 10
Figure 10
Ion-chromatogram of the Catasetum galeritum volatile concentrate.
Figure 11
Figure 11
Catasetum gnomus. (Source Luiz Otavio Adão).
Figure 12
Figure 12
Ion-chromatogram of the Catasetum gnomus volatile concentrate.
Figure 13
Figure 13
Hierarchical cluster analysis (HCA) of the Catasetum volatile concentrates, based on their classes of compounds.
Figure 14
Figure 14
Principal componente analysis (PCA) of the Catasetum volatile concentrates, Based on their classes of compounds.
See this image and copyright information in PMC

References

    1. Dudareva N., Pichersky E. Biochemical and molecular genetic aspects of floral scents. Plant Physiol. 2000;122:627–633. doi: 10.1104/pp.122.3.627. - DOI - PMC - PubMed
    1. Knudsen J.T., Eriksson R., Gershenzon J., Stahl B. Diversity and distribution of floral scent. Bot. Rev. 2006;72:1. doi: 10.1663/0006-8101(2006)72[1:DADOFS]2.0.CO;2. - DOI
    1. de Vasconcelos F.M., Andrade E.H.A., Teixeira L.O.A., Maia J.G.S. Volatile constituents of floral scents from Encyclia cordigera (Kunth) Dressler and E. randii (Barb. Rodr.) Porto & Brade (Orchidaceae) J. Braz. Chem. Soc. 2022;33:96–101. doi: 10.21577/0103-5053.20210127. - DOI
    1. Kessler D., Gase K., Baldwin I.T. Field experiments with transformed plants reveal the sense of floral scents. Science. 2008;321:1200–1202. doi: 10.1126/science.1160072. - DOI - PubMed
    1. Delle-Vedore R., Juillet N., Bessiere J.M., Grison C., Barthes N., Pailler T., Dormont L., Schatz B. Colour-scent associations in a tropical orchid: Three colours but two odours. Phytochemistry. 2011;72:735–742. doi: 10.1016/j.phytochem.2011.02.005. - DOI - PubMed