Results 51 to 60 of about 1,268 (204)

Constituintes químicos de Parmotrema lichexanthonicum Eliasaro & Adler: isolamento, modificações estruturais e avaliação das atividades antibiótica e citotóxica Chemical constituents of parmotrema lichexanthonicum Eliasaro & Adler: isolation, structure modification and evaluation of antibiotic and cytotoxic activities

Química Nova, 2009
From the lichen Parmotrema lichexantonicum were isolated the depsidone salazinic acid, the xanthone lichexanthone, and the depside atranorin. The two major compounds, salazinic acid and lichexanthone, were selected for structure modifications.
Ana C. Micheletti, Adilson Beatriz, Dênis Pires de Lima, Neli K. Honda, Cláudia do Ó Pessoa, Manoel Odorico de Moraes, Letícia Veras Lotufo, Hemerson Iury Ferreira Magalhães, Nádia C. P. Carvalho   +8 more
doaj   +1 more source

Hepatoprotective activity of depsidone enriched Cladonia rangiferina extract against alcohol-induced hepatotoxicity targeting cytochrome P450 2E1 induced oxidative damage

Saudi Pharmaceutical Journal, 2020
Alcoholic liver disease (ALD) is a broad-spectrum disorder, covering fatty liver, cirrhosis, alcoholic hepatitis and in extreme untreated condition hepatocellular carcinoma (HCC) may also develop.
Ila Shukla, Lubna Azmi, Ch. V. Rao, Talha Jawaid, Mehnaz Kamal, Amani S. Awaad, Saleh I. Alqasoumi, Osama A. Alkhamees, Saud M. Alsanad   +8 more
doaj   +1 more source

Die Gattung Aspicilia, ihre Ableitungen nebst Bemerkungen tiber cryptolecanorine Ascocarporganisation bei anderen Genera der Lecanorales (Ascomycetes lichenisati). [PDF]

, 1991
Innerhalb der Gattung Aspicilia coll. werden einige Evolutionslinien aufgezeigt und taxonomische wie nomenklatorische Konsequenzen für gewtihnlich als Sphaerothallia Nees bezeichnete Arten werden diskutiert.
Hafellner, Josef
core   +4 more sources

Cytotoxicity of Alkyl Derivatives of Protocetraric Acid

Orbital: The Electronic Journal of Chemistry
The protocetraric acid (1) is a depsidone produced by countless species of lichens and has shown potential biological activity. In this work, we evaluated through the sulforhodamine B (SRB) assay the cytotoxic activity of seven alkyl ether derivatives ...
Danielle Bogo, Glaucia Alcantara, Ana Camila Micheletti, Neli Honda, Maria de Fátima Cepa Matos   +4 more
doaj   +1 more source

Effectiveness and Anticancer Activity of a Novel Phenolic Compound from Garcinia porrecta Against the MCF-7 Breast Cancer Cell Line in vitro and in silico

Drug Design, Development and Therapy, 2021
Darwati Darwati, Ayu Nadila Safitri, Nurul Ambardhani, Tri Mayanti, Nurlelasari Nurlelasari, Dikdik Kurnia Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, 45363, West Java ...
Darwati D, Safitri AN, Ambardhani N, Mayanti T, Nurlelasari N, Kurnia D   +5 more
doaj  

2, 4, 6-Trihidroksi Benzofenon Dari Kulit Batang Garcinia Balica Miq [PDF]

, 2017
Penelitian ini bertujuan untuk mengisolasi senyawa metabolit sekunder dari ekstrak etil asetat kulit batang Garcinia Balica Miq. Proses ekstraksi dengan pelarut etil asetat didapatkan fraksi kering, kemudian difraksinasi menggunakan metode Kromatografi ...
Ersam, T. (Taslim), Purbowati, R. (Retno)   +1 more
core   +1 more source

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

, 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., Akpotu, Mark O., Esimone, Charles O., Eze, Peter M., Nwachukwu, Charles U., Okoye, Festus B. C., Umeokoli, Blessing O.   +6 more
core   +2 more sources

DNA barcoding and LC-MS metabolite profiling of the lichen-forming genus Melanelia: Specimen identification and discrimination focusing on Icelandic taxa [PDF]

, 2017
Taxa in the genus Melanelia (Parmeliaceae, Ascomycota) belong to a group of saxicolous lichens with brown to black foliose thalli, which have recently undergone extensive changes in circumscription.
Eiríksson, Finnur Freyr, Heiðmarsson, Starri, Olafsdottir, Elin Soffia, Omarsdottir, Sesselja, Thorsteinsdóttir, Margrét, Xu, Maonian   +5 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

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