Chemistry in Eriocaulaceae

Abstract

Eriocaulaceae is a pantropical family that comprises about 1100 species distributed in 11 genera. The infrafamilial relationships are still unsatisfactorily resolved, because of the tiny flowers and generalized morphology, which makes the taxonomy very difficult. Flavonoid and naphthopyranone profiles have proved to be important in order to contribute to the alignment of genera into the family. We here present a survey of the chemical data of Eriocaulaceae with a discussion about their contribution to the taxonomy of Eriocaulaceae.

Chemical metabolome assay by high‐resolution Orbitrap mass spectrometry and assessment of associated antitumoral activity of Actinocephalus divaricatus

“…High‐resolution Orbitrap mass spectrometry coupled to liquid chromatography of the extracts of the Brazilian plant species A. divaricatus aided us in conducting a fast and effective chemical characterization of acyl glycosylated flavonoids, 6‐oxygenated‐7‐methoxylated flavonoids, glycosylated paepalantine derivatives and saponins. With the exception of the latter class of compounds, the identified substances in our investigation are in line with the reports published in the literature regarding the results of the chemical studies conducted on the Actinocephalus genus …”

“…this distribution occurs only to a small number of species, with the vast majority being restricted to the southeast region, specifically the Espinhaço range, which lies across the states of Minas Gerais and Bahia. 6 Some of these plant species have already been chemically and biologically investigated, and this had led to the isolation of flavonoids and naphthopyranones, 7,8 which presented antiulcer, 9 anti-inflammatory, 10 antiradical, antioxidant, 11,12 cytotoxic, 13,14 mutagenic 15,16 and anti-microbial 17 activities. Clearly, this demonstrates the biological potential of metabolites produced by these plants of the Eriocaulaceae family.…”

High-Performance Liquid Chromatographic Quantification of Flavonoids in Eriocaulaceae Species and Their Antimicrobial Activity

“…Eriocaulaceae is a pantropical and predominantly herbaceous monocotyledonous family, comprising around 1,100 species in 11 genera [ 1 ]. They are frequent components of the vegetation in pools of hilly areas or swamps, especially in sandy ground areas.…”

“…These classes of secondary metabolites are absent in species belonging to both the Syngonanthus and Leiothrix genera. Leiothrix produces mainly flavones and xanthones [ 5 ], while Syngonanthus afforded only flavones [ 1 , 6 ]. From the evolutionary point of view, it is considered that Leiothrix and Syngonanthus may have been originated from Paepalanthus , from a more advanced position than Eriocaulon [ 1 ], since the substitution of flavonols by flavones [ 7 ] is a well established condition [ 8 ].…”

A revision of the African genus Mesanthemum (Eriocaulaceae)

“…belongs to the pantropical and warm temperate monocot family Eriocaulaceae, comprising ten genera and c. 1200 species (WCSP 2018). Most of the generic diversity occurs in South America, especially Brazil (Giulietti et al 1995;Dokkedal et al 2008), and the type genus Eriocaulon L. is pantropical, extending into warm temperate parts of Asia, Australia, North America and western Europe. Mesanthemum is unusual in being confined to tropical Africa and Madagascar.…”