Results 11 to 20 of about 503,811 (193)

Lichen Substances Prevent Lichens from Nutrient Deficiency [PDF]

Journal of Chemical Ecology, 2009
The dibenzofuran usnic acid, a widespread cortical secondary metabolite produced by lichen-forming fungi, was shown to promote the intracellular uptake of Cu2+ in two epiphytic lichens, Evernia mesomorpha and Ramalina menziesii, from acidic, nutrient ...
Leuschner, Christoph, Markus Hauck, Christoph Leuschner, Willenbruch, Karen, Karen Willenbruch, Hauck, Markus   +5 more
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Lichen substances affect metal adsorption in Hypogymnia physodes

Journal of Chemical Ecology, 2007
Lichen substances are known to function as chelators of cations. We tested the hypothesis that lichen substances can control the uptake of toxic metals by adsorbing metal ions at cation exchange sites on cell walls. If true, this hypothesis would help to
Huneck, Siegfried, Hauck, Markus
core   +4 more sources

Metal homeostasis in Hypogymnia physodes is controlled by lichen substances

Environmental Pollution, 2008
The hypothesis was tested that the lichen substances produced by the epiphytic lichen Hypogymnia physodes control the intracellular uptake of divalent transition metals. Incubating lichen thalli with and without their natural content of lichen substances
Hauck, Markus
core   +4 more sources

Towards the Use of Lichens as a Source of Bioactive Substances for Topical Applications

Molecules
The increasing incidence of dermatological diseases prompts the search for new natural methods of treatments, and lichens, with their special symbiotic structure, are a little-known and promising source of biologically active substances.
Izabela Baczewska, Barbara Hawrylak-Nowak, Martyna Zagórska-Dziok, Aleksandra Ziemlewska, Zofia Nizioł-Łukaszewska, Grzegorz Borowski, Sławomir Dresler   +6 more
doaj   +3 more sources

Anticancer activity of lichen substances: a systematic review [PDF]

, 2019
Os líquenes são fonte de uma grande variedade de metabolitos secundários, frequentemente exclusivos desta associação, com actividades biológicas importantes como a antibiótica, anti-inflamatória, antioxidante e anticancerígena, entre outras.
Marques, Joana Maria Mendonça
core   +3 more sources

The chemistry of Pseudocyphellaria impressa S. Lat. in New Zealand [PDF]

, 1979
As part of a detailed study of the nomenclature and taxonomy of the New Zealand species of Pseudocyphellaria it has been noted that the chemistry of the P. impressa (Hook & Taylor) Vainio aggregate, that is species with a markedly faveolate (honeycomb-
A. L. Wilkins, P. W. James, Wilkins, Alistair L., James, P.W.   +3 more
core   +1 more source

Barbatic Acid Offers a New Possibility for Control of Biomphalaria Glabrata and Schistosomiasis

Molecules, 2017
This study evaluated the biological activity of an ether extract and barbatic acid (BAR) from Cladia aggregata on embryos and adult mollusks of Biomphalaria glabrata, cercariae of Schistosoma mansoni and the microcrustacean Artemia salina.
Mônica Cristina Barroso Martins, Monique Costa Silva, Hianna Arely Milca Fagundes Silva, Luanna Ribeiro Santos Silva, Mônica Camelo Pessoa de Azevedo Albuquerque, André Lima Aires, Emerson Peter da Silva Falcão, Eugênia C. Pereira, Ana Maria Mendonça Albuquerque de Melo, Nicácio Henrique da Silva   +9 more
doaj   +1 more source

Development of antigen-specific ELISA for circulating autoantibodies to extracellular matrix protein 1 in lichen sclerosus [PDF]

, 2004
Lichen sclerosus is a common, acquired chronic inflammatory skin disease of unknown etiology, although circulating autoantibodies to the glycoprotein extracellular matrix protein 1 (ECM1) have been detected in most patients’ sera.
Sallie M. Neill, Hughes, GJ, Ien Chan, Andrew P. South, Black, Martin M., Oyama, N, McGrath, John A., McGrath, J A, Kawakami, Y, Fenella Wojnarowska, John A. McGrath, Mepani, K, Balbir S. Bhogal, South, AP, South, A P, Chan, Ien, Kaneko, F, Kawakami, Yoshio, Chan, I, Kirti Mepani, South, Andrew P., Bhogal, BS, Neill, Sallie M., Oyama, Noritaka, Bhogal, B S, Noritaka Oyama, Bhogal, Balbir S., David D’Cruz, Neill, SM, Mepani, Kirti, McGrath, JA, Fumio Kaneko, Kaneko, Fumio, D'Cruz, David, Hughes, G J, D'Cruz, D, Martin M. Black, Graham J. Hughes, Neill, S M, Hughes, Graham J., Yoshio Kawakami, Wojnarowska, F, Black, MM, Black, M M, Wojnarowska, Fenella   +44 more
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Influência de poluentes atmosféricos em Belo Jardim (PE) utilizando Cladonia verticillaris (líquen) como biomonitor Influence of atmospheric pollutants in Belo Jardim (PE) using Cladonia verticillaris (lichen) as biomonitor

Química Nova, 2007
Cladonia verticillaris used in this study was collected in the cerrado vegetation of Saloá (PE, Brazil) and transplanted in plastic containers on soil from the collection place to Belo Jardim (PE) that possesses lead smelters and battery industries.
Fernando de Oliveira Mota Filho, Eugênia C. Pereira, Edmilson Santos de Lima, Nicácio Henrique da Silva, Regina Célia Bressan Figueiredo   +4 more
doaj   +1 more source

Nephroma orvoi (Nephromatoideae, Peltigeraceae) – a new lichen species for Russia

Turczaninowia, 2021
The lichen species Nephroma orvoi is reported as new to Russia from two localities in Murmansk Region. Description and colour illustrations of the material studied are provided.
Геннадий Пранасович Урбанавичюс, Ирина Николаевна Урбанавичене   +1 more
doaj   +1 more source