Results 31 to 40 of about 831 (142)

Depside and Depsidone Synthesis in Lichenized Fungi Comes into Focus through a Genome-Wide Comparison of the Olivetoric Acid and Physodic Acid Chemotypes of Pseudevernia furfuracea

open access: yesBiomolecules, 2021
Primary biosynthetic enzymes involved in the synthesis of lichen polyphenolic compounds depsides and depsidones are non-reducing polyketide synthases (NR-PKSs), and cytochrome P450s.
Garima Singh   +3 more
doaj   +1 more source

Nuanced qualitative trait approaches reveal environmental filtering and phylogenetic constraints on lichen communities

open access: yesEcosphere, 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

open access: yesEcology 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

Phytochemical Characterization and Pharmacological Properties of Lichen Extracts from Cetrarioid Clade by Multivariate Analysis and Molecular Docking

open access: yesEvidence-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

Effect of Extracts and their Depsidones on Micronucleus Distribution in Human Lymphocytes

open access: yesNatural Product Communications, 2013
Three lichen depsidones, physodalic acid (1), physodic acid (2), and 3-hydroxy physodic acid (3), were isolated from Hypogymnia physodes diethyl ether extract using column chromatography, and their structures determined by comparing their UV, 1 H and 13 ...
Igor Ž. Stojanović   +5 more
doaj   +1 more source

Curdepsidones B–G, Six Depsidones with Anti-Inflammatory Activities from the Marine-Derived Fungus Curvularia sp. IFB-Z10

open access: yesMarine Drugs, 2019
Six new depsidones, curdepsidones B−G (1−6), were obtained from the marine-derived fungus Curvularia sp. IFB-Z10. Their planar structures were determined by comprehensive analysis of HRESIMS and 1D/2D-NMR data.
Yi Ding   +5 more
doaj   +1 more source

Cytotoxic and antibacterial depsidones from the endophytic fungus Chaetomium brasiliense isolated from Thai rice

open access: yes, 2021
Four new depsidones, mollicellins V-Y (1-4), together with eight known depsidones (5-12) were isolated from the endophytic fungus, Chaetomium brasiliense, detached from stems of Thai rice.
Trinop Promgool (2089207)   +8 more
core   +1 more source

Radical-scavenging Potential of Phenolic Compounds from Brazilian Lichens

open access: yesOrbital: The Electronic Journal of Chemistry, 2015
Lichens produce a wide range of phenolic substances, mostly depsides and depsidones. As part of our ongoing study of lichens from the Cerrado biome in Mato Grosso do Sul state, the present article reports novel findings on the radical-scavenging ...
Neli Kika Honda   +7 more
doaj   +3 more sources

Actividad antioxidante de los polifenoles de HYPOGYMNIA TAVARESII D. HAWKSW. & P. JAMES

open access: yesQuímica Nova, 2016
Lichen substances have more than one phenolic hydroxyl group attached to one or more benzene rings, thus qualifying them as polyphenols. The secondary metabolites isolated from the lichen H.
Elsa M. Rodríguez Pérez   +4 more
doaj   +1 more source

Anticancer Potential of Lichens’ Secondary Metabolites

open access: yesBiomolecules, 2020
Lichens produce different classes of phenolic compounds, including anthraquinones, xanthones, dibenzofuranes, depsides and depsidones. Many of them have revealed effective biological activities such as antioxidant, antiviral, antibiotics, antifungal, and
Zuzana Solárová   +5 more
doaj   +1 more source

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