Results 11 to 20 of about 2,991 (229)

Tinctoride A, a New Hopan-Type Triterpenoic Peracid from the Thallus of Lichen Parmotrema Tinctorum (Despr. ex Nyl.) Hale

Journal of Chemistry, 2022
A new hopan-type triterpenoic peracid, tinctoride A (1), together with three known compounds, zeorin (2), 6β,22-dihydroxyhopane (3), and ergosterol peroxide (4), was isolated from Parmotrema tinctorum (Despr. ex Nyl.) Hale. Their chemical structures were
Le-Thuy-Thuy-Trang Hoang, Thanh-Nha Tran, Thi-Phi-Giao Vo, Hoang-Vinh-Truong Phan, Phan-Si-Nguyen Dong, Dinh-Tri Mai, Ngoc-An Nguyen, Thi-Minh-Suong Huynh, Hong Truong Luu, Tien-Dung Le, Minh-Trung Dao, Van-Kieu Nguyen   +11 more
doaj   +2 more sources

Expanding the occurrence of Parmotrema enteroxanthum ( Parmeliaceae , lichenized Ascomycota ) in South America: first record from Brazil, and notes on distribution and conservation assessment

Plant and Fungal Systematics
Parmotrema enteroxanthum is a restricted distribution foliose lichen, easily recognized by its yellow medulla and salazinic acid content. Previously known only from Venezuela, Colombia, and Bolivia, its distribution in South America remains poorly ...
Tamires Silva Dutra, Gildean Macedo Nascimento, Jayane Sousa Santos, Daniel dos Santos Rocha, Iane Paula Rego Cunha-Dias   +4 more
doaj   +2 more sources

Contribución al conocimiento del Género Parmotrema (Parmeliaceae, Ascomycota liquenizados) en el Nordeste de Argentina

Lilloa
El objetivo de este trabajo es dar a conocer nuevos aportes al conocimiento del género Parmotrema en Argentina que surgieron a partir del estudio de ejemplares de la colección BAH del herbario CTES coleccionados en el nordeste de Argentina.
Andrea Michlig, Maria Pía Rodríguez
doaj   +2 more sources

Lichens as Biomonitors of Air Quality and Climate. [PDF]

Glob Chang Biol
Global Change Biology, Volume 32, Issue 2, February 2026.
Colesie C, Newsham KK.
europepmc   +2 more sources

Some species of Parmotrema (Parmeliaceae) from the Brazilian Amazon with salazinic acid [PDF]

Hoehnea
Six new species of Parmotrema (P. aristidesii, P. hypoflavum, P. marjorieanum, P. marlitonii, P. nelihondae, and P. subcristiferum) and P. cristiferum, all containing salazinic acid, were collected from the Amazon rainforest in Mato Grosso State, Brazil,
Fabiana Aparecida Rego Ciecoski, Flávia Rodrigues Barbosa, Marcelo Pinto Marcelli, Bianca Regina da Hora   +3 more
doaj   +2 more sources

Photochemical Responses of <i>Parmotrema tinctorum</i> and <i>Usnea barbata</i> to Light Variations in Cerrado Landscapes. [PDF]

Plants (Basel)
Epiphytic lichens are vital to tropical biodiversity, their distribution shaped by light. Parmotrema tinctorum and Usnea barbata, common in open Cerrado, endure high radiation, necessitating photoprotection.
Vitorino LC, Rosa M, Cruvinel BG, Marques MMS, Santos AMD, Bessa LA.   +5 more
europepmc   +2 more sources

Macrofilaricidal Activity, Acute and Biochemical Effects of Three Lichen Species Found on Mount Cameroon. [PDF]

J Parasitol Res, 2022
Onchocerciasis is a parasitic infection affecting a relatively small population globally but has very devastating pathological outcomes. Ivermectin and recently moxidectin are the only drugs approved for clinical management of the disease, both of which have several limitations.
Kang TR, Dinga JN, Orock AE, Monya E, Ngemenya MN.   +4 more
europepmc   +2 more sources

Chemical Composition and Antimicrobial Activity of Two Sri Lankan Lichens, Parmotrema rampoddense, and Parmotrema tinctorum against Methicillin-Sensitive and Methicillin-Resistant Staphylococcus aureus. [PDF]

Evid Based Complement Alternat Med, 2021
Introduction. Medicinal utility of lichens is ascribed to the presence of various secondary metabolites of low molecular weight and they have been used in traditional medicine including Ayurveda in the treatment of wounds and skin disorders. Despite the urgent need to effectively address the antibiotic resistance worldwide, the discovery of new ...
Shiromi PSAI, Hewawasam RP, Jayalal RGU, Rathnayake H, Wijayaratne WMDGB, Wanniarachchi D.   +5 more
europepmc   +2 more sources

How Thermal Patterns Change During Dehydration in Non-Vascular Epiphytic Communities. [PDF]

Ecol Evol
The thermoregulatory mechanisms of lichens and bryophytes at a fine scale can impact the surface thermal pattern. Furthermore, the morphological aspects of non‐vascular epiphytes can drive a different effect in terms of thermal patterns. Our results open the way for new research perspectives on the role of thermal traits within cryptogamic communities ...
Canali G, Hurtado P, Gariglio S, de Oliveira RR, Malegori C, Giordani P.   +5 more
europepmc   +2 more sources

Camouflage in lichen moths: Field predation experiments and avian vision modelling demonstrate the importance of wing pattern elements and background for survival

Journal of Animal Ecology, Volume 91, Issue 12, Page 2358-2369, December 2022., 2022
This study is one of the first to integrate vision modelling, quantitative image analysis and field predation experiments using realistic models to objectively quantify the level and functional significance of background matching in a real species. Abstract Background matching is perhaps the most ubiquitous form of defensive camouflage in the animal ...
Cassandra J. Mark, James C. O'Hanlon, Gregory I. Holwell   +2 more
wiley   +1 more source