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Pigment cells enable fish to change their coloration. It has been recognized that fish color changes can be divided into two categories; one is a physiological color change, which is attributed to rapid motile responses of chromatophores, and the other is a morphological color change, which results from changes in the morphology and density of(More)
Cyclic nucleoside monophosphates (cNMPs) play key roles in many cellular regulatory processes, such as growth, differentiation, motility, and gene expression. Caged derivatives that can be activated by irradiation could be powerful tools for studying such diverse functions of intracellular second messengers, since the spatiotemporal dynamics of these(More)
The pattern of adrenergic innervation to scale chromatophores of the wild-type medaka, Oryzias latipes, was examined by autoradiography with 3H-norepinephrine and found for the first time to be changed reversibly during prolonged background adaptation. In scales of the medaka, which was adapted to a black background for 10-15 days, a great number of(More)
Recent flow studies indicated that platelets are transiently captured onto and then translocated along the surface through interaction of glycoprotein (GP) Ib with surface-immobilized von Willebrand factor (vWF). During translocation, platelets are assumed to be activated, thereafter becoming firmly adhered and cohered on the surface. In exploring the(More)
Acid- and aluminum (Al)-tolerant microorganisms were isolated from tea fields, from which six strains were selected and identified as Cryptococcus humicola, Rhodotorula glutinis, Aspergillus flavus Link, Penicillium sp., Penicillium janthinellum Biourge and Trichoderma asperellum. They were tolerant to Al up to 100-200 mM and could grow at low pH, 2.5-2.2.(More)
The striped pigment patterns in the flanks of zebrafish result from chromatophores deep within the dermis or hypodermis, while superficial melanophores associated with dermal scales add a dark tint to the dorsal coloration. The responses of these chromatophores were compared during the long-term adaptation of zebrafish to a white or a black background. In(More)
Sexually mature male bitterlings, Rhodeus ocellatus ocellatus, exhibit distinct nuptial color, whereas females maintain a body color similar to that of juveniles. In the present study, body color and chromatophores were compared between male and female bitterlings, and the effects of androgens on body color and chromatophore densities were examined in(More)
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