Results 81 to 90 of about 13,736 (293)

Coloration in a Praying Mantis: Color Change, Sexual Color Dimorphism, and Possible Camouflage Strategies

Ecology and Evolution, Volume 15, Issue 1, January 2025.
The present study investigates color change, background choice, sexual color dimorphism, and movement rates in a praying mantis, Stagmomantis limbata. Nymphs changed color over development in response to rearing container color. Adults showed sexual color dimorphisms, which could potentially reflect different camouflage strategies.
Leah Y. Rosenheim, Jay A. Rosenheim, Michael R. Maxwell   +2 more
wiley   +1 more source

The Physarum polycephalum genome reveals extensive use of prokaryotic two-component and metazoan-type tyrosine kinase signaling [PDF]

, 2015
Physarum polycephalum is a well-studied microbial eukaryote with unique experimental attributes relative to other experimental model organisms. It has a sophisticated life cycle with several distinct stages including amoebal, flagellated, and plasmodial
et al,, Fronick, Catrina, Fulton, Lucinda, Minx, Pat, Tomlinson, Chad, Warren, Wesley C, Wilson, Richard K   +6 more
core   +9 more sources

Plant Metabolic Engineering for Enhanced Nutrition and Food Security During Climate Uncertainty

Food and Energy Security, Volume 14, Issue 1, January/February 2025.
The integration of plant metabolic engineering techniques for enhancing crop nutrition and stress resilience. Central to the process is metabolic pathway enhancement, achieved through gene‐editing tools like CRISPR/Cas9, which enable targeted reprogramming of biosynthetic pathways.
Cengiz Kaya
wiley   +1 more source

The role of folate transport in antifolate drug action in Trypanosoma brucei [PDF]

, 2016
The aim of this study was to identify and characterize mechanisms of resistance to antifolate drugs in African trypanosomes. Genome-wide RNAi library screens were undertaken in bloodstream form Trypanosoma brucei exposed to the antifolates methotrexate ...
Ali, Alsford, Alsford, Alsford, Brun, Burkard, Carver, Chatelain, Checchi, Colasante, Dridi, Dridi, Eadsforth, Ellenberger, Fairlamb, Fairlamb, Fairlamb, Franco, Gangjee, Gangjee, Gazanion, Gibson, Glover, Goldman, Graf, Hertz-Fowler, Hirumi, Jackson, Jamonneau, Jansen, Jones, Klaus, Kündig, Langmead, Li, Massimine, Matovu, Meiser, Mpanya, Odiit, Ong, Ouameur, Panigrahi, Pelphrey, Redmond, Richard, Richard, Robays, Shanks, Sienkiewicz, Sienkiewicz, Simarro, Sirotnak, Sirotnak, Sokolova, Spinks, Synold, Tan, Ubeda, van den Hoff, Vickers, Vincent, Wahlin, Wang, Webber, Widemann, World Health Organization   +66 more
core   +2 more sources

Serum vitamins and trace elements in vitiligo patients: A systematic review and meta‐analysis of observational studies

JEADV Clinical Practice, Volume 3, Issue 5, Page 1430-1446, December 2024.
Abstract Vitiligo is one of the most common pigmentary skin disorders, which significantly impacts the quality of life. The aetiology and pathophysiology of vitiligo are still unclear, but one of the proposed mechanisms is oxidative damage interrupting melanogenesis.
Fariba Iraji, Sarah Seyedyousefi, Asieh Heidari   +2 more
wiley   +1 more source

Early Diagnosis of 6-Pyruvoyl-tetrahydropterin Synthase Deficiency

Pteridines, 1994
6-Pyruvoyl-tetrahydropterin synthase (PTPS) deficiency, which used to be called dihydrobiopterin synthase deficiency, is the most common kind of tetrahydrobiopterin deficiency. Early treatment by administration of tetrahydrobiopterin and neurotransmitter
Shintaku Haruo
doaj   +1 more source

Corallistine, a new polynitrogen compound from the sponge Corallistes fulvodesmus L. and L. [PDF]

, 1989
Two polynitrogen compounds 1-methyl-pteridine-2,4-dione 1b and corallistine 2 were isolated from the new-caledonian sponge #Corallistes fulvodesmus$ L. & L.
Cesario, M., Debitus, Cécile, Guilhem, J., Pascard, C., Païs, M.   +4 more
core  

Crystal structure of a short‐chain dehydrogenase from Burkholderia cenocepacia J2315 in complex with NADP+ and benzoic acid

Acta Crystallographica Section F, Volume 80, Issue 12, Page 348-355, December 2024.
The structure of B. cenocepacia short‐chain dehydrogenase/reductase (SDR) in complex with NADP+ and benzoic acid is presented. Analysis of the structure reveals a distinctive active‐site architecture, suggesting that this protein is part of the divergent SDR subgroup.Burkholderia cenocepacia is an opportunistic human pathogen that can cause lethal ...
Kafi K. J. Belfon, Olive Beyer, Jan Abendroth, David M. Dranow, Donald D. Lorimer, Ariel Abramov, Yazmine Latimore, Connor Hamilton, Aniah Dawkins, Isabella Hinojosa, Xavier Martinez, Sofia Mirabel, Miriam Duncan, Reagan Womack, Lillian Hicks, Zachary R. Turlington, Thomas E. Edwards, Andrew T. Torelli, Katherine A. Hicks, Jarrod B. French   +19 more
wiley   +1 more source

Pteridines, IXC. Synthesis, Oxidations and Reactions of 6- and 7-Hydroxy-2-thiolumazines Selective Cytotoxicity of Carboxypeptidase-activated Methotrexate ex-Peptides

Pteridines, 1989
Various 6-(10, 11) and 7-hydroxy-2-thiolumazines (8,9) have been synthesized and oxidations of the thioamide function studied . H20 2 Oxidation of 7-hydroxy-2-thiolumazine (8) in basic medium leads to pteridine-4,7- dione-2-sulfinate (12), which ...
Bartke Michael, Pfleiderer Wolfgang
doaj   +1 more source

Electronic Transition Moments of 6-methyl Isoxanthopterin—A Fluorescent Analogue of the Nucleic Acid Base Guanine [PDF]

, 2013
Fluorescent nucleic acid base analogues are important spectroscopic tools for understanding local structure and dynamics of DNA and RNA. We studied the orientations and magnitudes of the electric dipole transition moments (EDTMs) of 6-methyl ...
Aspuru-Guzik, Alan, Johnson, Neil P., Marcus, Andrew H., Perdomo-Ortiz, Alejandro, Rappoport, Dmitrij, Thomsen, Hanna, von Hippel, Peter H., Widom, Julia   +7 more
core   +1 more source