Results 41 to 50 of about 1,421 (204)

DNA barcoding and LC-MS metabolite profiling of the lichen-forming genus Melanelia: Specimen identification and discrimination focusing on Icelandic taxa [PDF]

open access: yes, 2017
Taxa in the genus Melanelia (Parmeliaceae, Ascomycota) belong to a group of saxicolous lichens with brown to black foliose thalli, which have recently undergone extensive changes in circumscription.
Eiríksson, Finnur Freyr   +5 more
core   +3 more sources

The isolation, analytical characterization by HPLC-UV and NMR spectroscopy, cytotoxic and antioxidant activities of baeomycesic acid from Thamnolia vermicularis var. subuliformis [PDF]

open access: yes, 2011
The aim of this work was the analytical characterization of the β-orcinol depside, baeomycesic acid in lichens extracts. The extract of Thamnolia vermicularis var.
Bogdanović-Dušanović Gordana   +5 more
core   +1 more source

Diversity of Lecidea (Lecideaceae, Ascomycota) species revealed by molecular data and morphological characters [PDF]

open access: yes, 2002
The diversity of lichens, especially crustose species, in continental Antarctica is still poorly known. To overcome difficulties with the morphology based species delimitations in these groups, we employed molecular data (nuclear ITS and mitochondrial ...
Branson, K   +20 more
core   +4 more sources

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

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

Evaluating the In Vitro Activity of Depsidones from Usnea subfloridana Stirton as Key Enzymes Involved in Inflammation and Gout [PDF]

open access: yesPharmaceutical Sciences, 2021
Background: Traditionally, Usnea genus has significant uses in the treatment of swelling and tumors in Africa and Asia. The aim of the present study was to investigate the chemical constituents present in the acetone extract (AE) of Usnea subfloridana ...
Thanh-Trung Nguyen   +5 more
doaj   +1 more source

Comunidad liquénica de un bosque en peligro de extinción,con diferentes situaciones de manejo en el centro de Argentina [PDF]

open access: yes, 2014
Se ha estudiado la comunidad de líquenes de un bosque nativo de Espinal de 300 ha bajo diferentes tipos de manejo definidos en sectores: pastoreo temporal, cultivos adyacentes, ajardinado y conservado.
Estrabou, Cecilia   +2 more
core   +1 more source

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

Depsidone Derivatives and a Cyclopeptide Produced by Marine Fungus Aspergillus unguis under Chemical Induction and by Its Plasma Induced Mutant

open access: yesMolecules, 2018
A new depsidone derivative (1), aspergillusidone G, was isolated from a marine fungus Aspergillus unguis, together with eight known depsidones (2‒9) and a cyclic peptide (10): agonodepside A (2), nornidulin (3), nidulin (4), aspergillusidone F (5 ...
Wen-Cong Yang   +6 more
doaj   +1 more source

New taxa and new records from the Tasmanian lichen flora [PDF]

open access: yes, 1995
Three new lichens from Tasmania, Cladonia sulcata var, depleta Elix & Kantvilas, Parmelia tarkinesis Elix & Kantvilas and Xanthoparmelia jarmaniae are described.
Elix, JA, Kantvilas, G
core   +2 more sources

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