Results 1 to 10 of about 4,735 (198)

A computational pipeline to track chromatophores and analyze their dynamics [PDF]

open access: yeseLife
Cephalopod chromatophores are small dermal neuromuscular organs, each consisting of a pigment-containing cell and 10–20 surrounding radial muscles. Their expansions and contractions, controlled and coordinated by the brain, are used to modify the animal ...
Johann Ukrow   +3 more
doaj   +2 more sources

THE DERMAL CHROMATOPHORE UNIT [PDF]

open access: yesJournal of Cell Biology, 1968
Rapid color changes of amphibians are mediated by three types of dermal chromatophores, xanthophores, iridophores, and melanophores, which comprise a morphologically and physiologically distinct structure, the dermal chromatophore unit. Xanthophores, the outermost element, are located immediately below the basal lamella.
J T, Bagnara, J D, Taylor, M E, Hadley
exaly   +3 more sources

Colour Confusion: Reviewing Ambiguities in the Identification and Classification of Chromatophore Deficiencies Among Amphibians [PDF]

open access: yesEcology and Evolution
The colour of amphibian skin and eyes (retina and iris) is the result of light interacting with cells called chromatophores, primarily xanthophores, iridophores and melanophores, that can be found in various combinations.
John Gould
doaj   +2 more sources

Ultrastructural analysis of throat dermal tissue and chromatophore components in the threespine stickleback (Gasterosteus aculeatus) [PDF]

open access: yesPeerJ, 2023
The threespine stickleback (Gasterosteus aculeatus) is an important model for studying the evolution of nuptial coloration, but histological analyses of color are largely lacking.
Christopher M. Anderson   +2 more
doaj   +3 more sources

Functional Analysis of the NinaB-like Gene in Body Color Regulation of Neocaridina denticulata sinensis [PDF]

open access: yesBioTech
Carotenoid-based pigmentation is crucial for the ornamental and commercial value of the cherry shrimp (Neocaridina denticulata sinensis). While several genes are known to influence carotenoid metabolism, the genetic basis for specific color strains ...
Haifan Li   +3 more
doaj   +2 more sources

Overall energy conversion efficiency of a photosynthetic vesicle [PDF]

open access: yeseLife, 2016
The chromatophore of purple bacteria is an intracellular spherical vesicle that exists in numerous copies in the cell and that efficiently converts sunlight into ATP synthesis, operating typically under low light conditions.
Melih Sener   +4 more
doaj   +4 more sources

Dynamic light filtering over dermal opsin as a sensory feedback system in fish color change [PDF]

open access: yesNature Communications, 2023
Dynamic color change has evolved multiple times, with a physiological basis that has been repeatedly linked to dermal photoreception via the study of excised skin preparations.
Lorian E. Schweikert   +7 more
doaj   +2 more sources

Pigment granule architecture varies across yellow, red, and brown chromatophores in squid Doryteuthis pealeii [PDF]

open access: yesScientific Reports
Cephalopods produce dynamic colors and skin patterns for communication and camouflage via stratified networks of neuronally actuated yellow, red, and brown chromatophore organs, each filled with thousands of pigment granules. While compositional analysis
Duncan Q. Bower   +3 more
doaj   +2 more sources

Characterization of spliced leader trans-splicing in a photosynthetic rhizarian amoeba, Paulinella micropora, and its possible role in functional gene transfer. [PDF]

open access: yesPLoS ONE, 2018
Paulinella micropora is a rhizarian thecate amoeba, belonging to a photosynthetic Paulinella species group that has a unique organelle termed chromatophore, whose cyanobacterial origin is distinct from that of plant and algal chloroplasts.
Mitsuhiro Matsuo   +7 more
doaj   +4 more sources

Dynamic pigmentary and structural coloration within cephalopod chromatophore organs

open access: yesNature Communications, 2019
Chromatophores in cephalopod skin are known for fast changes in coloration due to light-scattering pigment granules. Here, authors demonstrate structural coloration facilitated by reflectin in sheath cells and offer insights into the interplay between ...
Jingjie Yeo   +2 more
exaly   +2 more sources

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