Results 41 to 50 of about 5,651 (158)

Exploring the Agricultural Applications of Microbial Melanin

Microorganisms
Microbial melanins are a group of pigments with protective effects against harsh conditions, showing fascinating photoprotective activities, mainly due to their capability to absorb UV radiation.
Patricio Muñoz-Torres, Steffany Cárdenas-Ninasivincha, Yola Aguilar   +2 more
doaj   +1 more source

Differential Antifungal Activity of Human and Cryptococcal Melanins with Structural Discrepancies

Frontiers in Microbiology, 2017
Melanin is a pigment found in all biological kingdoms, and plays a key role in protection against ultraviolet radiation, oxidizing agents, and ionizing radiation damage. Melanin exerts an antimicrobial activity against bacteria, fungi, and parasites.
Néstor Correa, Néstor Correa, Néstor Correa, Cristian Covarrubias, Paula I. Rodas, Germán Hermosilla, Verónica R. Olate, Verónica R. Olate, Cristián Valdés, Wieland Meyer, Fabien Magne, Cecilia V. Tapia, Cecilia V. Tapia   +12 more
doaj   +1 more source

Comparative Biophysical and Ultrastructural Analysis of Melanins Produced by Clinical Strains of Different Species From the Trichosporonaceae Family

Frontiers in Microbiology, 2022
Melanin is one of the most studied virulence factors in pathogenic fungi. This pigment protects them from a series of both environmental and host stressors.
Iara Bastos de Andrade, Iara Bastos de Andrade, Glauber Ribeiro de Sousa Araújo, Fábio Brito-Santos, Maria Helena Galdino Figueiredo-Carvalho, Rosely Maria Zancopé-Oliveira, Susana Frases, Susana Frases, Rodrigo Almeida-Paes, Rodrigo Almeida-Paes   +9 more
doaj   +1 more source

Raman Characterization of Fungal DHN and DOPA Melanin Biosynthesis Pathways

Journal of Fungi, 2021
Fungal melanins represent a resource for important breakthroughs in industry and medicine, but the characterization of their composition, synthesis, and structure is not well understood.
Benjamin D. Strycker, Zehua Han, Aysan Bahari, Tuyetnhu Pham, Xiaorong Lin, Brian D. Shaw, Alexei V. Sokolov, Marlan O. Scully   +7 more
doaj   +1 more source

Anti-ultraviolet, antibacterial, and biofilm eradication activities against Cutibacterium acnes of melanins and melanin derivatives from Daedaleopsis tricolor and Fomes fomentarius

Frontiers in Microbiology
Fomes fomentarius and Daedaleopsis tricolor produced significant amounts of water-insoluble melanins, and our previous study successfully enhanced their water solubility by arginine modification.
Tu N. Le, Ngan T. H. Tran, Vy N. T. Pham, Ngoc-Dung Van-Thi, Hanh T. M. Tran, Hanh T. M. Tran   +5 more
doaj   +1 more source

Chemistry of Melanin. IV. Electron Micrography of Natural Melanins.

Experimental Biology and Medicine, 1947
Summary1. Melanin granules were obtained by differential centrifugation from the S-91 and Harding-Passey transplantable mouse melanomas, from the choroid, ciliary body and iris of the beef eye, and...
H. S. Mason, H. Kahler, R. C. MacCardle, A. J. Dalton   +3 more
openaire   +2 more sources

Promelanogenic Effects by an Annurca Apple-Based Natural Formulation in Human Primary Melanocytes

Clinical, Cosmetic and Investigational Dermatology, 2021
Maria Grazia Ferraro,1 Marialuisa Piccolo,1 Alessandro Pezzella,2 Fabrizia Guerra,1 Francesco Maione,1 Gian Carlo Tenore,1 Rita Santamaria,1 Carlo Irace,1 Ettore Novellino1 1Department of Pharmacy, School of Medicine and Surgery, University of Naples ...
Ferraro MG, Piccolo M, Pezzella A, Guerra F, Maione F, Tenore GC, Santamaria R, Irace C, Novellino E   +8 more
doaj  

Comparison of Clinical Outcomes of Gingival Depigmentation using Diode Laser versus Scalpel Surgery: A Prospective Interventional Study [PDF]

Journal of Clinical and Diagnostic Research
Introduction: Pigmentation of the gingiva, when it is not related to the skin complexion, is a dampening factor in an otherwise acceptable smile window.
Ambili Gopalakrishnan, RM Baiju, Bindu R Nayar, MR Sreelakshmi, B Jithin   +4 more
doaj   +1 more source

Melanin and Light

Chemistry – A European Journal
AbstractMelanin is responsible, in Nature, for photoprotection, for this reason it is expected to be poorly photoreactive. However, the photo‐reactivity of melanin and related materials is well documented. Here we discuss some relevant recent examples to demonstrate that, indeed, the actual mechanism of interaction of melanin with light is complex and ...
Menichetti A., Mordini D., Montalti M.
openaire   +2 more sources

The pbrB gene encodes a laccase required for DHN-melanin synthesis in conidia of Talaromyces (Penicillium) marneffei. [PDF]

PLoS ONE, 2015
Talaromyces marneffei (Basionym: Penicillium marneffei) is a significant opportunistic fungal pathogen in patients infected with human immunodeficiency virus in Southeast Asia. T. marneffei cells have been shown to become melanized in vivo.
Ariya Sapmak, Kylie J Boyce, Alex Andrianopoulos, Nongnuch Vanittanakom   +3 more
doaj   +1 more source