Results 61 to 70 of about 1,590 (200)

New Depsides From the Lichen Lecanora planaica

, 1994
The new depsides hyperplanaic acid (4), isohyperplanaic acid (5) and superplanaic acid (6) have been detected in the lichen Lecanora planaica and the structure of these metabolites has been established by unambiguous synthesis.
CE Barclay, JA Elix, HT Lumbsch
core   +1 more source

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

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

New Depsides From Dimelaena Lichens

, 1988
The new depsides 3-chlorostenosporic acid (2), 3-chloroperlatolic acid (3) and subsphaeric acid (24) have been detected in Dimelaena lichens and the structures of the metabolites have been established by unambiguous synthesis.
JA Elix, JE Evans, TH Nash
core   +1 more source

Intramolecular transesterification of depsides yields fluorescent 1H-isochromen-1-ones: Application as a chemical probe for lichen determination

, 2022
International audienceThe reactivity of eight purified depsides obtained from six european lichens and that display as 2-oxoalkyl chain in ortho-position of the ester bond was explored.
Ferron, S., Jéhan, P, Guillory, X., Uriac, P, Uriac, P., Ferron, S, J, P., Guillory, X, ehan   +8 more
core   +1 more source

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

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

A new Ramalina with two new depsides

Occasional papers of the Farlow Herbarium of Cryptogamic Botany., 1981
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Culberson, William L., Culberson, Chicita F.   +1 more
openaire   +1 more source

Synthesis of meta-Divarinol and Olivetol depsides

, 1975
Unambiguous syntheses of the lichen depsides scrobiculin, sekikaic acid, homosekikaic acid, boninic acid, ramalinolic acid, paludosic acid, merochlorophaeic acid, cryptochlorophaeic acid and 4-O- methylcryptochlorophaeic acid are reported.
S Norfolk, JA Elix
core   +1 more source

Synthesized Depside Molecules Suppress the Progression of Colorectal Cancer by Binding VDAC1/PHB/MMP9 Being at the Crossroads of Stemness, Motility, Apoptosis, and Metabolism

MedComm, Volume 6, Issue 11, November 2025.
This study suggests that newly synthesized depside compounds suppress the progression of colorectal cancer by directly targeting VDAC1/PHB/MMP9. Especially, SB4 demonstrated significant bioavailability and successfully suppressed the tumor growth. ABSTRACT Lichen secondary metabolites have shown potential in cancer therapy, but strategies to enhance ...
Mücahit Varlı, Young Hyun Yu, Jieun Yu, Suresh R. Bhosle, Sang Kyum Kim, Yoon Gyoon Kim, Hyung‐Ho Ha, Hangun Kim   +7 more
wiley   +1 more source