Results 21 to 30 of about 1,911 (159)

Melanins: Skin Pigments and Much More—Types, Structural Models, Biological Functions, and Formation Routes

open access: yesNew Journal of Science, Volume 2014, Issue 1, 2014., 2014
This review presents a general view of all types of melanin in all types of organisms. Melanin is frequently considered just an animal cutaneous pigment and is treated separately from similar fungal or bacterial pigments. Similarities concerning the phenol precursors and common patterns in the formation routes are discussed.
F. Solano, Rakez Kayed
wiley   +1 more source

Peritonitis due to the dermatiaceous mold Exophiala dermatitidis complicating continuous ambulatory peritoneal dialysis [PDF]

open access: yes, 2003
Exophiala (Wangiella) dermatitidis is a dermatiaceous mold that is an occasional cause of infection in the immunocompromised. We report a case of continuous ambulatory peritoneal dialysis-associated peritonitis probably due to environmental contamination
Liang, S.   +5 more
core   +1 more source

Colorful World of Microbes: Carotenoids and Their Applications

open access: yesAdvances in Biology, Volume 2014, Issue 1, 2014., 2014
Microbial cells accumulate pigments under certain culture conditions, which have very important industrial applications. Microorganisms can serve as sources of carotenoids, the most widespread group of naturally occurring pigments. More than 750 structurally different yellow, orange, and red colored molecules are found in both eukaryotes and ...
Kushwaha Kirti   +5 more
wiley   +1 more source

Effects of stress conditions on Wangiella dermatitidis and its various chitin synthase mutants

open access: yes, 2006
textWangiella dermatitidis is a dematiaceous (melanized) fungus that causes pheohyphomycosis in humans. Although W. dermatitidis predominantly exists as a budding yeast in vitro, it can be induced to convert into one or the other of its alternative ...
Niu, Wei
core   +1 more source

Ionizing radiation changes the electronic properties of melanin and enhances the growth of melanized fungi.

open access: yesPLoS ONE, 2007
BackgroundMelanin pigments are ubiquitous in nature. Melanized microorganisms are often the dominating species in certain extreme environments, such as soils contaminated with radionuclides, suggesting that the presence of melanin is beneficial in their ...
Ekaterina Dadachova   +7 more
doaj   +1 more source

Exophiala(Wangiella)dermatitidiskeratitis after keratoplasty [PDF]

open access: yesMedical Mycology, 1999
We report the first French case of an intraocular infection due to Exophiala (Wangiella) dermatitidis. Two months after a second corneal transplant for congenital hereditary endothelial dystrophy, the patient presented with ocular pain and corneal infiltrates leading to the graft rejection.
F, Benaoudia   +4 more
openaire   +2 more sources

Polyketide Trimming Shapes Dihydroxynaphthalene‐Melanin and Anthraquinone Pigments

open access: yesAdvanced Science, Volume 11, Issue 22, June 12, 2024.
Vital Pigment Functions: Anthraquinones and dihydroxynaphthalene‐melanins play roles in cancer therapy or act as virulence factors. Protein crystallography, along with structure‐based mutagenesis and activity assays, provides atomic insights into polyketide trimming, ring formation, and thioester hydrolysis during AQ and DHN‐melanin biosynthesis in ...
Maximilian Schmalhofer   +4 more
wiley   +1 more source

Serological analysis and pathogenic potentials of Wangiella dermatitidis isolated from bats

open access: yes, 1981
Five isolates of Wangiella dermatitidis from macroscopically asymptomatic bats were analysed by the agar-gel immunodiffusion tests and the mouse inoculation studies on virulence.
Luizâo, Regina Celi Costa, Mok, Waiyin
core   +1 more source

Yeast-phase cell cycle of the polymorphic fungus Wangiella dermatitidis [PDF]

open access: yesJournal of Bacteriology, 1980
The yeast-phase cell cycle of Wangiella dermatitidis was studied using flow microfluorimetry and the deoxyribonucleic acid (DNA) synthesis inhibitor hydroxyurea (HU). Exposure of exponential-phase yeastlike cells to 0.1 M HU for 3 to 6 h resulted in the arrest of the cells in DNA synthesis and produced a nearly homogeneous population of unbudded cells.
R L, Roberts, P J, Szaniszlo
openaire   +2 more sources

Pleurostomophora richardsiae – An Insidious Fungus Presenting in a Man 44 Years After Initial Inoculation: A Case Report and Review of the Literature

open access: yes, 2012
Canadian Journal of Infectious Diseases and Medical Microbiology, Volume 23, Issue 3, Page 110-113, 2012.
Jeremy S Levenstadt   +4 more
wiley   +1 more source

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