Results 81 to 90 of about 4,628 (262)
American Journal of Primatology, Volume 87, Issue 10, October 2025.Neopterin is a sensitive and specific biomarker of intracellular pathogen infection and chronic inflammation, and affected by environmental, life‐history, and sex‐contextual factors. This review offers best‐practice guidelines and practical advice on sample collection, storage, and analysis in primates when used for ecoimmunological conservation and ...
Verena Behringer, Caroline Deimel
wiley +1 more source
Carotenoids and their importance in the nutrition of fish and crustaceans [PDF]
, 1987 Carotenoids are quantitatively very prominent among the substances which render colour - Biochrome. There are an immense array of carotenoids in the animal kingdom and so also in the plants.
Easterson, D C V
core
The Lrs14‐Like AbfR1 Homolog From Metallosphaera sedula Is a Nucleoid‐Organizing Protein
MicrobiologyOpen, Volume 14, Issue 5, October 2025.Nucleoid organization in Crenarchaeota involves diverse small DNA‐binding proteins. The Lrs14‐type protein AbfR1 from Metallosphaera sedula binds nonsequence specifically across the genome and induces DNA condensation. These findings suggest a structural role for AbfR1Ms in chromatin architecture, functionally resembling bacterial nucleoid‐associated ...
Veerke De Kock +5 more
wiley +1 more source
Folate profiling in wild and transgenic rice [PDF]
, 2010 Quantitative profiling of mono- and polyglutamyl folates in rice was achieved using the microbiological assay (MA) and a newly developed liquid chromatography tandem mass spectrometry (LC-MS/MS) method.
Abilgos Ramos, Riza
core
Occurrence of Pterin Pigments in Hymenoptera [PDF]
Nature, 1950 IT has been found that pterins exist in tissues of animals belonging to nearly all groups; their occurrence as pigments, however, is restricted to insects and cold-blooded vertebrates1,2. Among Lepidoptera, they are always present in the wing-scales of the Pieridae and appear to be a biochemical characteristic of that natural family3,4.
openaire +2 more sources
Functional Ecology, Volume 39, Issue 10, Page 2588-2600, October 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Animal coloration serves a variety of visually related functions in nature (e.g. mate choice, aposematism and camouflage) but the pigments in integumentary tissues such as skin, scales and feathers may also serve functions unrelated to the visual environment (e.g ...
Beth A. Reinke +2 more
wiley +1 more source
Metabolic Processes Preserved as Biosignatures in Iron-Oxidizing Microorganisms: Implications for Biosignature Detection on Mars [PDF]
Iron-oxidizing bacteria occupy a distinct environmental niche. These chemolithoautotrophic organisms require very little oxygen (when neutrophilic) or outcompete oxygen for access to Fe(II) (when acidophilic).
Emerson, David +3 more
core +1 more source
Inactivation of tyrosinase photoinduced by pterin
Biochemical and Biophysical Research Communications, 2012 Tyrosinase catalyzes in mammals the first and rate-limiting step in the biosynthesis of the melanin, the main pigment of the skin. Pterins, heterocyclic compounds able to photoinduce oxidation of DNA and its components, accumulate in the skin of patients suffering from vitiligo, a chronic depigmentation disorder in which the protection against UV ...
Dantola, Maria Laura +2 more
openaire +3 more sources
Nitrogen Substrate Impacts Microcystis aeruginosa Exometabolome Composition
Environmental Microbiology Reports, Volume 17, Issue 5, October 2025.We used untargeted metabolomics to identify differences in the compounds exuded into culture media by three strains of M. aeruginosa grown on three N substrate treatments (NO3−, NH4+, and urea). Results showed that the usage of different N substrates changes the exometabolome of toxic and non‐toxic strains of M. aeruginosa.
Caroline M. Peck +3 more
wiley +1 more source