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The fine structure of lamprey epidermis. II. Club cells.
The club cells are large binucleate epidermal cells which have two distinct cytological compartments, filamentous and cytoplasmic. By far the larger of the two, the filamentous compartment is… Expand
The fine structure of lamprey epidermis. I. Introduction and mucous cells.
The larval and adult lamprey epidermis has been examined with the light and electron microscopes. The smallest and most numerous of the three epidermal cell types present (mucous cells, club cells,… Expand
The fine structure of lamprey epidermis. 3. Granular cells.
The granular cells are large cells located in the middle and upper regions of the lamprey epidermis, and may be conveniently divided into two groups, immature and mature cells. The immature granular… Expand
The Effects of Osmotic Pressure and Sodium Concentration on the Response of Melanophores to Intermedin
- R. R. Novales
- Physiological Zoology
- 1 January 1959
THERE are several views of the mechanism of melanin granule movement in melanophores. Lerner and Takahashi (1956) recently reviewed the literature in this area and postulated that the melanin… Expand
Cellular aspects of the control of physiological color changes in fishes.
SYNOPSIS. Recent advances in the cellular aspects of chromatophoric activities in fishes are reviewed, special emphasis being laid on the black pigment-containing cells, the melanophores. A few… Expand
Cellular aspects of the control of physiological color changes in amphibians.
SYNOPSIS. The present paper is concerned mainly with the melanin-dispersing effect of melanocyte-stimulating hormones (MSH's) on the skin melanophores of amphibians. In addition, some of the more… Expand
Tetrodotoxin: Effects on Fish and Frog Melanophores
Tetrodotoxin blocks the response of killifish melanophores to electrical stimulation of their melanin-aggregating nerves. The direct response of killifish or frog melanophores to hormones is not… Expand
The nervous mechanism controlling pigment aggregation in Fundulus melanophores
Abstract 1. 1. The mechanism of nervous control of melanin movements in melanophores was studied, using the isolated split tail-fin preparation of the killifish, Fundulus heteroclitus. 2. 2. A single… Expand
ON THE ROLE OF CYCLIC AMP IN THE FUNCTION OF SKIN MELANOPHORES *
- R. R. Novales
- Chemistry, Medicine
- Annals of the New York Academy of Sciences
- 1 December 1971
Skin melanophores function in cold-blooded vertebrates to bring about color changes.’ These are of two types, the relatively rapid physiological color changes, which involve melanosome movements… Expand
The effect of colchicine on migration of pigment granules in the melanophores of Fundulus heteroclitus.
1. The effects of colchicine were studied on pigment migration in melanophores of the killifish, Fundulus heteroclitus.2. Pretreatment of the melanophores in colchicine resulted in a decrease in the… Expand