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Chemical Evaluation, Phytotoxic Potential, and In Silico Study of Essential Oils from Leaves of IGuatteria schomburgkiana/I Mart. and IXylopia frutescens/I Aubl. from the Brazilian Amazon
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Chemical Evaluation, Phytotoxic Potential, and In Silico Study of Essential Oils from Leaves of IGuatteria schomburgkiana/I Mart. and IXylopia frutescens/I Aubl. from the Brazilian Amazon
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Chemical Evaluation, Phytotoxic Potential, and In Silico Study of Essential Oils from Leaves of IGuatteria schomburgkiana/I Mart. and IXylopia frutescens/I Aubl. from the Brazilian Amazon
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Journal Article
Chemical Evaluation, Phytotoxic Potential, and In Silico Study of Essential Oils from Leaves of IGuatteria schomburgkiana/I Mart. and IXylopia frutescens/I Aubl. from the Brazilian Amazon
2023
Overview
The essential oils (EOs) of Guatteria schomburgkiana (Gsch) and Xylopia frutescens (Xfru) (Annonaceae) were obtained by hydrodistillation, and their chemical composition was evaluated by gas chromatography-mass spectrometry (GC/MS). Herbicide activity was measured by analyzing the seed germination percentage and root and hypocotyl elongation of two invasive species: Mimosa pudica and Senna obtusifolia. The highest yield was obtained for the EO of Xfru (1.06%). The chemical composition of Gsch was characterized by the presence of the oxygenated sesquiterpenes spathulenol (22.40%) and caryophyllene oxide (14.70%). Regarding the EO of Xfru, the hydrocarbon monoterpenes α-pinene (35.73%) and β-pinene (18.90%) were the components identified with the highest concentrations. The germination of seeds of S. obtusifolia (13.33 ± 5.77%) showed higher resistance than that of seeds of M. pudica (86.67 ± 5.77%). S. obtusifolia was also more sensitive to the EO of Xfru in terms of radicle (55.22 ± 2.72%) and hypocotyl (71.12 ± 3.80%) elongation, while M. pudica showed greater sensitivity to the EO of Gsch. To screen the herbicidal activity, the molecular docking study of the major and potent compounds was performed against 4-hydroxyphenylpyruvate dioxygenase (HPPD) protein. Results showed good binding affinities and attributed the strongest inhibitory activity to δ-cadinene for the target protein. This work contributes to the study of the herbicidal properties of the EOs of species of Annonaceae from the Amazon region.
Publisher
MDPI AG
Subject
