Results 41 to 50 of about 1,764 (217)
Antigenotoxicity of Depsidones Isolated from Brazilian Lichens
Orbital: The Electronic Journal of Chemistry, 2017 Although phenolic compounds produced by lichens have been widely investigated in antitumor assays, only a small number have been evaluated for mutagenicity and genotoxicity.
Zaira da Rosa Guterres +4 more
doaj +3 more sources
Two‐step isolation of the two major paraconic acids of Cetraria islandica
Journal of Separation Science, Volume 46, Issue 6, March 2023., 2023 The lichen Cetraria islandica is traditionally used as a demulcent for the symptomatic treatment of irritations of the mouth and throat and associated dry cough, as well as for the treatment of temporary loss of appetite. In addition to depsides and depsidones, thalli contain paraconic acids, a group of secondary metabolites commonly found in lichens ...
Eduardo Villicaña González +2 more
wiley +1 more source
ASAP‐MS and DART‐MS as ancillary tools for direct analysis of the lichen metabolome
Phytochemical Analysis, Volume 33, Issue 7, Page 1028-1035, October 2022., 2022 Abstract Introduction Lichens contain unique metabolites that most often need to be characterized from a limited amount of material. While thin layer chromatography is still the preferred analysis method for most lichenologists, liquid chromatography gives a deeper insight in the lichen metabolome, but an extractive step is needed before any analysis ...
Simon Ollivier +6 more
wiley +1 more source
Phytochemical Analysis, Volume 33, Issue 7, Page 1111-1120, October 2022., 2022 Abstract Introduction In recent years, LC‐MS has become the golden standard for metabolomic studies. Indeed, LC is relatively easy to couple with the soft electrospray ionization. As a consequence, many tools have been developed for the structural annotation of tandem mass spectra.
Simon Ollivier +6 more
wiley +1 more source
Anti‐Inflammatory Potential of Compounds Isolated from Tunisian Lichens Species
Chemistry &Biodiversity, Volume 19, Issue 8, August 2022., 2022 Abstract The lichen's special symbiotic structure enables it to produce bioactive substances. They have historically been recognized for their aesthetic and medicinal benefits. Furthermore, in recent years, they have performed in various fields, including perfumery, dyeing, and pharmacology due to their rich secondary metabolites.
Mohamed Mendili +6 more
wiley +1 more source
Ecosphere, Volume 13, Issue 4, April 2022., 2022 Abstract We propose that a qualitative trait approach based on more detailed nuanced traits may reveal previously overlooked patterns, especially when combined with phylogenetic perspectives. By sampling epiphytic lichens and using a functional approach based on nuanced qualitative traits, such as a much greater resolution over photobiont identity ...
Natália M. Koch +5 more
wiley +1 more source
Chemical properties of key metabolites determine the global distribution of lichens
Ecology Letters, Volume 25, Issue 2, Page 416-426, February 2022., 2022 In lichen symbioses, secondary metabolites produced by the lichen fungi (mycobionts) provide UV protection on which trebouxioid green algae as the most prominent photobionts sensitively depend. These metabolites differ in their UV absorbance capability and solvability and therefore vary in their propensity of being leached from the lichen body by high ...
Andreas H. Schweiger +6 more
wiley +1 more source
Evidence-Based Complementary and Alternative Medicine, Volume 2022, Issue 1, 2022., 2022 Introduction. Lichens, due to the presence of own secondary metabolites such as depsidones and depsides, became a promising source of health‐promoting organisms with pharmacological activities. However, lichens and their active compounds have been much less studied.
Isabel Ureña-Vacas +6 more
wiley +1 more source
Journal of Chemistry, Volume 2022, Issue 1, 2022., 2022 A new hopan‐type triterpenoic peracid, tinctoride A (1), together with three known compounds, zeorin (2), 6β,22‐dihydroxyhopane (3), and ergosterol peroxide (4), was isolated from Parmotrema tinctorum (Despr. ex Nyl.) Hale. Their chemical structures were identified by extensive 1D and 2D NMR analysis and high‐resolution mass spectroscopy and compared ...
Le-Thuy-Thuy-Trang Hoang +12 more
wiley +1 more source
Ecology and Evolution, Volume 11, Issue 24, Page 18615-18632, December 2021., 2021 We investigate species boundaries and the potential for micro‐endemism for a charismatic genus of lichen fungi occurring in Baja California. Genome‐scale data support high species‐level diversity, along with high levels of endemism, while highlighting the problem of delimiting species, particularly in groups with complex, recent phylogeographic ...
Jesse Jorna +13 more
wiley +1 more source