Results 31 to 40 of about 1,421 (204)

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

Secalonic acid A from Pseudoparmelia sphaerospora (Nyl.) Hale and P. hypomilta (Fée) Hale (Parmeliaceae) [PDF]

open access: yes, 1995
Secalonic acid A, a yellow pigment from fungal metabolism, was isolated from the lichens Pseudoparmelia sphaerospora and P. hypomilta. From P. sphaerospora was also isolated the depsidone hypostictic acid.
Devincenzi, Izilda A. A.   +2 more
core   +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

Tinctoride A, a New Hopan‐Type Triterpenoic Peracid from the Thallus of Lichen Parmotrema Tinctorum (Despr. ex Nyl.) Hale

open access: yesJournal 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

Species boundaries in the messy middle—A genome‐scale validation of species delimitation in a recently diverged lineage of coastal fog desert lichen fungi

open access: yesEcology 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

Climate‐specific biosynthetic gene clusters in populations of a lichen‐forming fungus

open access: yesEnvironmental Microbiology, Volume 23, Issue 8, Page 4260-4275, August 2021., 2021
Summary Natural products can contribute to abiotic stress tolerance in plants and fungi. We hypothesize that biosynthetic gene clusters (BGCs), the genomic elements that underlie natural product biosynthesis, display structured differences along elevation gradients.
Garima Singh   +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

Phenolics, depsides and triterpenes from the chilean lichen pseudocyphellaria nudata (zahlbr.) D.J. Galloway [PDF]

open access: yes, 2008
Indexación: ScieloThe lichen Pseudocyphellaria nudata is a species endemic to southern South América. From the lichen tallus, methyl orsellinate, 2-methoxy-3,6-dimethyl-4-hydroxybenzaldehyde, methyl-evernate, tenuiorin, hopan-6ß,22-diol and hopan-6α,76 ...
Cuellar, M.   +4 more
core   +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

Lichens: might be considered as a source of gastroprotective molecules? [PDF]

open access: yes, 2013
Indexación: Web of Science; ScieloABSTRACT Lichens are symbiotic relationship between fungi and algae or cyanobacteria. Secondary metabolites from lichens are known as lichen substances.
Areche, Carlos   +3 more
core   +2 more sources

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