The following compounds have been isolated from the lichen RAMALINA HIERRENSIS, collected on savin, and endemic to the Canary Islands: ursolic acid, iso-arborinol acetate, beta-sitosterol, ergosterol peroxide, cerevisterol, (-)-sandaracopimaric acid, parietin, (+)-usnic acid, (+)-iso-usnic acid, divaricatic acid, atranorin, stictic acid, gangaleodin, variolaric acid, montagnetol, and hierridin. The structures of all compounds were elucidated by physical, spectral, and chemical methods.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1055/s-2006-961433 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Cytotoxicity of norstictic acid derivatives, a depsidone from Nyl.
Turk J Chem
August 2024
Laboratory of Molecular Biology and Cell Culture, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil.
Structural modifications in lichen phenolic compounds have been one of the tools to potentiate their biological activity. In the present work, seven alkyl derivatives of norstictic acid were prepared and evaluated against eight cell lines. Norstictic acid was isolated from the lichen and the alkyl derivatives were obtained through reactions with alcohols.
View Article and Find Full Text PDFSecondary Metabolites from Australian Lichens and Affect Growth and Metabolism of Photobiont through Allelopathy.
Molecules
September 2024
Department of Botany, Institute of Biology and Ecology, Faculty of Science, Pavol Jozef Šafárik University in Košice, Mánesova 23, 041 67 Košice, Slovakia.
In the present work, the phytotoxic effects of secondary metabolites extracted from lichen (usnic acid) and lichen (a naturally occurring mixture of atranorin and perlatolic acid, approx. 3:1) on cultures of the aposymbiotically grown lichen photobiont were evaluated. Algae were cultivated on the surface of glass microfiber disks with applied crystals of lichen extracts for 14 days.
View Article and Find Full Text PDFEndless forms most frustrating: disentangling species boundaries in the group (), with the description of six new species and a key to the group.
Persoonia
August 2024
Department of Mycology, Real Jardín Botánico (CSIC), Madrid, Spain.
Oceanic islands have been recognized as natural laboratories in which to study a great variety of evolutionary processes. One such process is evolutionary radiations, the diversification of a single ancestor into a number of species that inhabit different environments and differ in the traits that allow them to exploit those environments. The factors that drive evolutionary radiations have been studied for decades in charismatic organisms such as birds or lizards, but are lacking in lichen-forming fungi, despite recent reports of some lineages showing diversification patterns congruent with radiation.
View Article and Find Full Text PDFMyco-Phycobiont Interactions within the " Group": A Geographical Survey over Europe and Macaronesia.
J Fungi (Basel)
March 2024
Departament de Botànica i Geologia, Universitat de València, C/Dr. Moliner, 50, E-46100 Burjassot, València, Spain.
is a widely distributed epiphytic lichen from the Macaronesian archipelagos to Mediterranean and Boreal Europe. Previous studies have indicated a specific association between and microalgae species. Here, we examined the symbiotic interactions in this lichen and its closest allies (the so-called " group") across ten biogeographic subregions, spanning diverse macroclimates, analyzing the climatic niche of the primary phycobionts, and discussing the specificity of these associations across the studied area.
View Article and Find Full Text PDFContribution to the Study of Lichenicolous Fungi from Northwest Iberian Peninsula (León and Lugo Provinces).
J Fungi (Basel)
January 2024
Departamento de Enxeñaría dos Recursos Naturais e Medio Ambiente, Enxeñaría Forestal, Universidade de Vigo, Campus de Pontevedra, 36005 Pontevedra, Spain.
We have found 117 taxa of lichenicolous fungi in the studied area. In this paper, we describe five taxa: on , on , on , on and ssp. on .
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!