Results 51 to 60 of about 2,790 (160)

Absorption Changes in Bacterial Chromatophores

Biophysical Journal, 1964
The magnitude and kinetics of photo-induced absorption changes in bacterial chromatophores (R. rubrum, R. spheroides and Chromatium) have been studied as a function of potential, established by added redox couples. No photochanges can be observed above +0.55 v or below -0.15 v.
Kuntz, Irwin D., Loach, Paul A., Calvin, Melvin   +2 more
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Leucism recording and skin alterations in the Arabian tadpole (Sclerophrys arabica) (Heyden, 1827) in AlUla, Saudi Arabia

The European Zoological Journal
Leucism is a colour aberration that results from a lack of melanin and alteration in the development or distribution of chromophores. The study records for the first time the occurrence of leucistic larvae of Arabian toad (Sclerophrys arabica) in AlUla ...
R. M. Alansari, A. A. Seleem, F. M. Lashein, A. A. Ahmed   +3 more
doaj   +1 more source

Larval Pigmentation Reveals Environmental and Genetic Influences in Hybridizing Ambystoma Salamanders

Ecology and Evolution
Closely related species may produce hybrids, and these hybrids often display intermediate traits that can influence fitness and reproductive isolation. In this study, we examine Ambystoma barbouri and Ambystoma texanum, two sister salamander species that
Alfredo Ascanio, Victor Fitzgerald, Patrick Altomari, Jason T. Bracken, Tereza Jezkova   +4 more
doaj   +1 more source

Dynamic pigmentary and structural coloration within cephalopod chromatophore organs

Nature 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 ...
Thomas L. Williams, Stephen L. Senft, Jingjie Yeo, Francisco J. Martín-Martínez, Alan M. Kuzirian, Camille A. Martin, Christopher W. DiBona, Chun-Teh Chen, Sean R. Dinneen, Hieu T. Nguyen, Conor M. Gomes, Joshua J. C. Rosenthal, Matthew D. MacManes, Feixia Chu, Markus J. Buehler, Roger T. Hanlon, Leila F. Deravi   +16 more
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Ultrastructure and Function of Cephalopod Chromatophores [PDF]

American Zoologist, 1969
synopsis. Each chromatophore organ consists of a pigment cell and of several radial muscle fibers that represent separate cells. The pigment granules are contained within an elastic sacculus within the pigment cell. The sacculus is attached around the equator of the chromatophore to the cell membrane by zonal haptosomes.
openaire   +2 more sources

Hyperdisordered Cell Packing on a Growing Surface

Physical Review X
While the physics of disordered packing in nongrowing systems is well understood, unexplored phenomena can emerge when packing takes place in growing domains.
R. J. H. Ross, Giovanni D. Masucci, Chun Yen Lin, Teresa L. Iglesias, Sam Reiter, Simone Pigolotti   +5 more
doaj   +1 more source

Two new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin, Brazil

Neotropical Ichthyology
Two new species of Corydoras are described from the rio Madeira basin, Brazil. The intermediate long-snouted new species can be distinguished from its congeners by presenting the following combination of features: posterior margin of dorsal-fin spine ...
Luiz Fernando Caserta Tencatt, Willian Massaharu Ohara   +1 more
doaj   +1 more source

Chromatophores [PDF]

Nature, 1973
openaire   +1 more source

Chromatophore [PDF]

, 2020
openaire   +1 more source

Development of a Microbiosensor Based on Fish Chromatophores Immobilized on Ferromagnetic Gelatin Beads

Food Technology and Biotechnology, 2005
Development of a microbiosensor based on immobilized living chromatophores of Siamese fighting fish, Betta splendens, for the detection of microbial and environmental toxins is described in this paper.
Goran N. Jovanović, Ljiljana V. Mojović   +1 more
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