Results 51 to 60 of about 2,277 (193)

Xerophytic Lichens from Gypsiferous Outcrops of Arid Areas of Andalusia as a Source of Anti-Phytopathogenic Depsides

Journal of Fungi, 2023
In a survey to evaluate the potential of lichens associated with gypsum areas as sources of new antifungal metabolites, six species of lichens were collected in the gypsum outcrops of the Sorbas Desert (Diploschistes ocellatus and Seirophora lacunosa ...
Ignacio Fernández-Pastor, Victor González-Menéndez, Kevin Martínez Andrade, Rachel Serrano, Thomas A. Mackenzie, Guillermo Benítez, Manuel Casares-Porcel, Olga Genilloud, Fernando Reyes   +8 more
doaj   +1 more source

Sample preparation for an optimized extraction of localized metabolites in lichens: Application to Pseudevernia furfuracea [PDF]

, 2016
International audienceLichens are symbiotic organisms known for producing unique secondary metabolites with attractive cosmetic and pharmacological properties.
Bazureau, Jean-Pierre, Carrié, Daniel, Dang, Huyen Duong, Gauffre, Fabienne, Jungnickel, Harald, Komaty, Sarah, Laux, Peter, Letertre, Marine, Luch, Andreas, Merdrignac-Conanec, Odile, Paquin, Ludovic, Tomasi, Sophie   +11 more
core   +3 more sources

Dereplicative Combination of HPLC/DAD/MS and 2D NMR to Identify Lichexanthone Isomers in Lichen Extracts

Phytochemical Analysis, Volume 37, Issue 2, Page 330-343, March 2026.
ABSTRACT Introduction Lichexanthones are the major xanthones found in lichens. They present a high degree of isomerism, which makes their identification tedious. Xanthones are known to occur in lichens according to chemosyndromes, and these compounds act as chemotaxonomic markers.
Solenn Ferron, Marylène Chollet‐Krugler, Hermann Pinson, Rania Marzoug, Philippe Uriac, Françoise Lohézic‐Le Dévéhat   +5 more
wiley   +1 more source

Effects of Fumarprotocetraric Acid, a Depsidone from the Lichen Cladonia verticillaris, on Tyrosinase Activity

Orbital: The Electronic Journal of Chemistry, 2017
Lichens are widely distributed around the world. Their phenolic compounds, consisting mainly of depsides and depsidones, have been extensively studied for important biological activities.
Luiz Fabrício Gardini Brandão, Noemia Pereira da Silva Santos, Eugênia Cristina Gonçalves Pereira, Nicácio Henrique da Silva, Maria de Fatima Cepa Matos, Danielle Bogo, Neli Kika Honda   +6 more
doaj   +3 more sources

Lichen-Derived Depsides and Depsidones Modulate the Nrf2, NF-κB and STAT3 Signaling Pathways in Colorectal Cancer Cells

Molecules, 2021
The study aimed to evaluate the possible modulation of Nrf2, NF-ĸB and STAT3 signaling pathways in the colorectal cancer (CRC) cells line DLD-1 and HCT116 by secondary metabolites of lichens.
Katarzyna Papierska, Violetta Krajka-Kuźniak, Jarosław Paluszczak, Robert Kleszcz, Marcin Skalski, Elżbieta Studzińska-Sroka, Wanda Baer-Dubowska   +6 more
doaj   +1 more source

Functional Traits Mediate Physico‐Chemical Niche Differentiation of Epiphytic Lichens and Bryophytes in Temperate Forests

Journal of Vegetation Science, Volume 37, Issue 2, March/April 2026.
Host tree identity drives bark physico‐chemical filters (e.g., pH, metals) that shape epiphytic communities. We show that species‐specific functional traits, such as lichen substances and bryophyte growth forms, mediate these responses. Lichen metal homeostasis and bryophyte growth habit create distinct species thresholds and community change points ...
Theresa Möller, Stefan Kaufmann, Markus Hauck   +2 more
wiley   +1 more source

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

, 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, Chamy, María Cristina, Piovano, Marisa, Sepulveda, Beatriz   +3 more
core   +2 more sources

Mass Spectrometry‐Based Applications in Tannin Analytics: From Qualitative and Quantitative Analyses to Biological Activity

Mass Spectrometry Reviews, Volume 45, Issue 1, Page 120-146, January/February 2026.
ABSTRACT Tannins are widespread specialized plant metabolites that contribute significantly to the polyphenol content of plant‐based diets. Their effects on human and animal health vary depending on their structure, with potential benefits including antioxidative, antimicrobial, anthelmintic, and anticarcinogenic properties.
Marica T. Engström, Maarit Karonen
wiley   +1 more source

Lichen specific thallus mass and secondary compounds change across a retrogressive fire-driven chronosequence [PDF]

, 2012
In the long-term absence of major disturbances ecosystems enter a state of retrogression, which involves declining soil fertility and consequently a reduction in decomposition rates.
Asplund, Johan, Sandling, Aron, Wardle, David A.   +2 more
core   +2 more sources

Causes of delayed angiosperm diversification: The photosynthetic revolution, increased opportunity costs of anti‐herbivore defenses, selection for qualitative toxins, and acceleration of plant–herbivore coevolution

American Journal of Botany, Volume 112, Issue 11, November 2025.
Abstract Why did it take so long for angiosperms to diversify after they arose? Here I consider the indirect but potentially crucial impact of the “photosynthetic revolution” on plant–herbivore coevolution. Increased vein density in fossil leaves implies a doubling in photosynthesis 125–100 million years ago.
Thomas J. Givnish
wiley   +1 more source