Results 81 to 90 of about 1,764 (217)

New species of Parmeliaceae (lichenized Ascomycotina) from South America [PDF]

open access: yes, 1995
The species Flavoparmelia quichuaensis Elix & T. H. Nash, Hypotrachyna divaricatica Elix & T. H. Nash, Hypotrachyna goiasii Elix & Nash, Hypotrachyna hypoalectorialica Elix & T. H. Nash and Relicina xanthoparmeliformis Elix & T. H.
Elix, John A., Nash III, Thomas H.
core  

Authentication of Iceland Moss (Cetraria islandica) by UPLC-QToF-MS chemical profiling and DNA barcoding [PDF]

open access: yes, 2018
The lichen Cetraria islandica or Iceland Moss is commonly consumed as tea, food ingredients (e.g. in soup or bread) and herbal medicines. C. islandica, which has two chemotypes, can be difficult to distinguish from the sister species Cetraria ericetorum.
Hawkins, Julie   +6 more
core   +1 more source

Influence of Cladonia substellata Vainio extracts and usnic acid on germination and growth of Allium cepa L. seedlings [PDF]

open access: yes, 1999
The effect of lichen extracts obtained from Cladonia substellata and its main constituent, on the germination and growth of onion (Allium cepa L.) seedlings was investigated.
Filho, Lauro Xavier   +2 more
core  

Antimicrobial activities of secondary metabolites of endophytic fungi isolated from Catharanthus roseus [PDF]

open access: yes, 2017
Introduction: Recently, several endophytes have been shown to possess the potentials to synthesize novel bioactive compounds that have found use for drug discovery. We isolated endophytic fungi associated with Catharanthus roseus collected from the river
Abba, Chika C.   +6 more
core   +2 more sources

Mollicellins O–R, Four New Depsidones Isolated from the Endophytic Fungus Chaetomium sp. Eef-10

open access: yesMolecules, 2018
Four new depsidones, mollicellins O⁻R (compounds 1⁻4), along with three known compounds 5⁻7, were isolated from cultures of the fungus Chaetomium sp. Eef-10, an endophyte isolated from Eucalyptus exserta.
Jinkui Ouyang   +9 more
doaj   +1 more source

Chemotaxonomic Studies on Some Stereocaulon (Stereocaulaceae, Lichenized Ascomycota) from Southern South America and Antarctica

open access: yesOrbital: The Electronic Journal of Chemistry
Lichenized fungi (lichens) produce many compounds especially those derived from the polyketide pathway. These are predominantly phenolic compounds, most of which are unique to lichens, and long-chain fatty acids.
Aline Siqueira Gianini   +5 more
doaj   +1 more source

Chemical constituents and biological activities of Garcinia cowa Roxb. [PDF]

open access: yes, 2013
Garcinia cowa is an abundant source of bioactive phytochemicals. Phytochemical investigations of the plant parts indicated that the fruit, twig and stem are the best source of secondary metabolites, providing flavonoids, phloroglucinols and xanthones ...
Thunwadee Ritthiwigrom
core  

Can Parietin Transfer Energy Radiatively to Photosynthetic Pigments? [PDF]

open access: yes, 2018
The main role of lichen anthraquinones is in protection against biotic and abiotic stresses, such as UV radiation. These compounds are frequently deposited as crystals outside the fungal hyphae and most of them emit visible fluorescence when excited by ...
0000-0001-6498-975X   +6 more
core   +3 more sources

Oxidation reactions are required to produce atranorin from acetate by alginate-immobilized cells of Cladonia verticillaris. [PDF]

open access: yes, 2000
Atranorin, a p-depside of the b-orcinol series, is produced by several Cladonia species. Immobilized cells of Cladonia verticillaris in calcium alginate are able to produce atranorin when they are supplied with 1.0 mM acetate as a precursor.
Fontaniella, B.   +3 more
core  

"Ramalina carminae" (Ascomycota: "Ramalinaceae"), una especie nueva de Europa [PDF]

open access: yes, 2011
Ramalina carminae is described as new to science. The new species is found in several localities in Portugal and Spain and in one locality in Sardinia (Italy).
Araújo, Elena   +2 more
core   +2 more sources

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