Results 41 to 50 of about 869 (158)

ELECTRON MICROSCOPIC DEMONSTRATION OF TYROSINASE IN PTERINOSOMES OF THE FROG XANTHOPHORE, AND THE ORIGIN OF PTERINOSOMES* [PDF]

Development, Growth and Differentiation, 1976
In the frog, Rana japonica, the successive appearance of types I, II and III pterinosomes, which were defined according to the degree of lamellar structure, is in keeping with the xanthophore differentiation at the larval stage, but these three types coexist in a single xanthophore in the adult.
Masumi, Yasutomi, Tadao, Hama
openaire   +2 more sources

White LED Light Exposure Inhibits the Development and Xanthophore Pigmentation of Zebrafish Embryo [PDF]

Scientific Reports, 2019
AbstractCircadian rhythm in all living organisms is disturbed continuously by artificial light sources and artificial lighting has become a hazard for public health. Circadian rhythm of melatonin maintains high levels of melatonin during the night and low levels during the day.
Üstündağ, Ünsal Veli, Çalışkan-Ak, Esin, Ateş, Perihan Seda, Ünal, İsmail, Eğilmezer, Gizem, Yiğitbaşı, Türkan, Alturfan, Ahmet Ata, Emekli-Alturfan, Ebru   +7 more
openaire   +4 more sources

Gap junctions composed of connexins 41.8 and 39.4 are essential for colour pattern formation in zebrafish

eLife, 2014
Interactions between all three pigment cell types are required to form the stripe pattern of adult zebrafish (Danio rerio), but their molecular nature is poorly understood.
Uwe Irion, Hans Georg Frohnhöfer, Jana Krauss, Tuǧba Çolak Champollion, Hans-Martin Maischein, Silke Geiger-Rudolph, Christian Weiler, Christiane Nüsslein-Volhard   +7 more
doaj   +1 more source

Transcriptomic analysis of colour dimorphism of Opsariichthys bidens provides insights into the mechanism of male colour

Aquaculture Reports, 2023
Opsariichthys bidens (O. bidens) is a fish species native to China. It has become a popular ornamental fish because of its interesting colour dimorphism.
Kai Zhang, Qingyuan Liu, Weiyu Wang, Bingyan He, Yingyi Hou, Yehong Lin, Jiazhen Ye, Siqi Ren, Yuan Qin, Aiping Xiao, Shanjian Zheng   +10 more
doaj   +1 more source

Dynamic colour change predicts movement behaviour in a diadromous fish

Journal of Fish Biology, EarlyView.
Abstract Dynamic changes in colour and pattern facilitate key behavioural functions in animals, particularly camouflage for predator avoidance. However, the benefits of colour change depend on the environmental and behavioural contexts. We tested how colour change interacts with movement behaviour in a freshwater fish by filming individuals in an open ...
Joshua S. Barrow, John R. Morrongiello
wiley   +1 more source

Dual Knockout Models of the Spatially and Functionally Conserved rgra and rgrb Zebrafish Genes Reveal the Requirement of RGR for the Integrity of Cone‐Mediated Photopic Vision, the Photopic Visual Cycle and Bruch's Membrane Morphology

The FASEB Journal, Volume 40, Issue 10, 31 May 2026.
This study investigates the role of the vision gene RGR using novel dual knockout zebrafish models. The loss of rgra and rgrb results in zebrafish larvae having reduced visual function and altered retinoid profiles under light but not dark conditions. The OKR phenotype is enhanced under higher light intensities.
Grace Ruddin, Tess McCann, Joanna J. Kaylor, Michelle M. Fox, John D. Fehilly, Rebecca Ward, Adam Faulkner, Ailís L. Moran, Kieran Wynne, Roxana A. Radu, Michael G. Monaghan, Stephen D. Thorpe, Gabriel H. Travis, Breandán N. Kennedy   +13 more
wiley   +1 more source

Homotypic cell competition regulates proliferation and tiling of zebrafish pigment cells during colour pattern formation

Nature Communications, 2016
Melanophores, iridophores and xanthophores are pigment-cell types that interact to form the stripes in zebrafish. Here, the authors study the interaction between cells of the same kind and show that each pigment-cell type covers the skin by contact based
Brigitte Walderich, Ajeet Pratap Singh, Prateek Mahalwar, Christiane Nüsslein-Volhard   +3 more
doaj   +1 more source

Identification of kit-ligand a as the Gene Responsible for the Medaka Pigment Cell Mutant few melanophore

G3: Genes, Genomes, Genetics, 2020
The body coloration of animals is due to pigment cells derived from neural crest cells, which are multipotent and differentiate into diverse cell types.
Yuji Otsuki, Yuki Okuda, Kiyoshi Naruse, Hideyuki Saya   +3 more
doaj   +1 more source

Delousing performance of ballan wrasse (Labrus bergylta) and lumpfish (Cyclopterus lumpus): seasonal consistency and the challenge of cryptic lice for lumpfish

Pest Management Science, Volume 82, Issue 5, Page 4661-4668, May 2026.
Ballan wrasse and lumpfish effectively reduce sea lice on salmon year round, although lumpfish struggle with cryptic lice, highlighting new considerations for lice management. Abstract BACKGROUND Cleaner fish play a crucial role in controlling caligid sea lice in Atlantic salmon aquaculture across the North Atlantic.
Adam Jonathan Brooker, Andrew Davie, David Bassett, Sally Boyd, Hervé Migaud   +4 more
wiley   +1 more source

Analysis of pigment cell differences and carotenoid content in the skin of golden turbot (Scophthalmus maximus) with color variation

Aquaculture Reports
Golden-colored mutants of turbot (Scophthalmus maximus) have recently been identified in aquaculture, presenting a unique opportunity to study the underlying mechanisms of this rare coloration.
Zhifeng Liu, Mingchao Yang, Yuelei Shi, Pengfei Yan, Zhibin Sun, Junlian Zhong, Zhihui Huang, Hui Wang, Aijun Ma   +8 more
doaj   +1 more source