MELANIN FORMATION IN COLOR VARIETIES OF THE MEDAKA (ORYZIAS LATIPES)1)2)

Hishida, Tomi‐O; Tomita, Hideo; Yamamoto, Taiki

doi:10.1111/j.1440-169x.1961.tb00099.x

Cited by 27 publications

(12 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results are shown in Figs.5, 5a and 6, From these facts, it may be said that the chromaffin cells of the orange-red variety and the melanophores of the wild type medaka have similar physiological responses to the 2 reagents used. Furthermore, the chromaffin cells and the colorless melanophores detected by tyrosinase reaction (HISHIDA, et al, 1961) show a striking similarity in appearance as shown in Figs.5a and 7. From these facts, the chromaffin cells seem unmistakably to be the same cells as the colorless melanophores.…”

Section: Presence O J the Ckromajfin Cell In The Orunge-red Varietymentioning

confidence: 79%

Histochemical and Physiological Study of Chromaffin Cells in the Skin of the Medaka, Oryzias Latipes.

Oikawa¹

1971

Dev Growth Differ

View full text Add to dashboard Cite

A modified HILLARP-HOKFELT'S method was applied to detect the chromaffin cells in the skin of the orange-red variety of the medaka, which has "colorless melanophores". A positive reaction was obtained in dendritic melanophore-like cells. This means that these cells contain at least dopa and/or dopa derivatives.Effects of atropin and adrenalin on the chromaffin cells of the orange-red variety and on the melanophores of the wild type were investigated. Both kinds of these cells showed similar physiological responses to the reagents. From the above facts, the chromaffin cell was identified as the colorless melanophores.In 1865, HENLE showed that when the suprarenal mediilla was treated with a fixing fluid containing potassium bichromate, a characteristic brownish-yellow color appeared. This reaction was called the "chromaffin reaction" by him. Since then it was demonstrated by many workers that this reaction occurs in relation to the oxidation of adrenalin in the cells of the suprarenal medulla.HILLARP and HOKFELT (1955) found that potassium iodate is also effective to produce the chromaffin reaction, and that potassium iodate acts on dopa, dopamine and noradrenalin, each of these substances is transformed into melanin-like brown derivative.The biosynthetic and catabolic processes of these catecholamines were clarified by isotope techniques, but many problems remain to be solved, e.g., their controlling mechanism in the cell and their mode of existence of these substances. This paper is concerned with the detection of chromaffin cells in the skin of the orange-red variety of the medaka, which has "colorless melanophores", by a modified HILLARP-HOKFELT'S method and is also concerned with some experiments on the physiological relationship between the chromaffin cell and the melanophore. MATERIAL AND METHODMaterials used in this study are two varieties of the medaka, (Oryzias Zatipes), the orange-red ( +i, b, R)* and the brown (wild type, +i, B, R)*.

show abstract

Section: Presence O J the Ckromajfin Cell In The Orunge-red Varietymentioning

confidence: 79%

Histochemical and Physiological Study of Chromaffin Cells in the Skin of the Medaka, Oryzias Latipes.

Oikawa¹

1971

Dev Growth Differ

View full text Add to dashboard Cite

show abstract

“…In the tissues of normal fish, tyrosinase activity has not a s yet been demonstrated. In the preceeding paper (HISHIDA, TOMITA and YAMAMOTO 1961), however, the presence of tyrosinase was clearly demonstrated in isolated scales of the medaka. Furthermore, in the present study, tyrosinase was successfully extracted from adult skins of various color varieties.…”

Section: Resultsmentioning

confidence: 99%

“…As to the origin of the mutant and its genetic behaviour a s worked out by AIDA, a brief account is given elsewhere (HISHIDA, TOMITA and YAMAMOTO 1961). Development of Mendelian characters in the medaka has been studied by GOODRICH (1927) and OKA (1931).…”

Section: Introductionmentioning

confidence: 99%

A QUANTITATIVE STUDY ON PHENOL OXIDASE OF SKINS IN COLOR VARIETIES OF THE MEDAKA (ORYZIAS LATIPES)¹⁾

Tomita¹,

Hishida²

1961

Embryologia

Self Cite

View full text Add to dashboard Cite

“…Histochemical tests for tyrosinase and dopa oxidase were performed by the method similar to that used in the study of isolated scales (HISHIDA, TOMITA and YAMAMOTO 1961). Larvae were pretreated by immersion f a r one minute either in 10% neutral formalin or in 50% ethanol at O'C.…”

Section: Methodsmentioning

confidence: 99%

“…Tyrosinase has been demonstrated to occur in some invertebrates and vertebrates and universally in plant sources. Previously the authors of this paper have succeeded in demonstrating the presence of tyrosinase and dopa oxidase in the skin of the medaka (HISHIDA, TOMITA and YAMAMOTO 1961). Quantitative study on the activities of tyrosinase and dopa oxidase was further made in the skin of some color varieties of the medaka .…”

Section: Introductionmentioning

confidence: 99%

ON THE PHENOL OXIDASE OF EMBRYONIC AND LARVAL STAGES OF THE MEDACA (ORYZIAS LATIPES)¹⁾²⁾

Tomita

Hishida

1961

Embryologia

Self Cite

View full text Add to dashboard Cite

1) This is a part of the "Phenogenetic studies on color varieties of the medaka (Oryzias latipes)" being carried out under the direction of Prof. T O K I -0 YAMAMOTO a t the Biological Institute, Faculty of Science, Nagoya University.2, We express our deep gratitude to Dr. SEIZO KATSUNUMA, former President of Nagoya University for his suggestion on this project and the continued encouragement during the studies. 423

show abstract

MELANIN FORMATION IN COLOR VARIETIES OF THE MEDAKA (ORYZIAS LATIPES)¹⁾²⁾

Cited by 27 publications

References 23 publications

Histochemical and Physiological Study of Chromaffin Cells in the Skin of the Medaka, Oryzias Latipes.

Histochemical and Physiological Study of Chromaffin Cells in the Skin of the Medaka, Oryzias Latipes.

A QUANTITATIVE STUDY ON PHENOL OXIDASE OF SKINS IN COLOR VARIETIES OF THE MEDAKA (ORYZIAS LATIPES)¹⁾

ON THE PHENOL OXIDASE OF EMBRYONIC AND LARVAL STAGES OF THE MEDACA (ORYZIAS LATIPES)¹⁾²⁾

Contact Info

Product

Resources

About

MELANIN FORMATION IN COLOR VARIETIES OF THE MEDAKA (ORYZIAS LATIPES)1)2)

Cited by 27 publications

References 23 publications

Histochemical and Physiological Study of Chromaffin Cells in the Skin of the Medaka, Oryzias Latipes.

Histochemical and Physiological Study of Chromaffin Cells in the Skin of the Medaka, Oryzias Latipes.

A QUANTITATIVE STUDY ON PHENOL OXIDASE OF SKINS IN COLOR VARIETIES OF THE MEDAKA (ORYZIAS LATIPES)1)

ON THE PHENOL OXIDASE OF EMBRYONIC AND LARVAL STAGES OF THE MEDACA (ORYZIAS LATIPES)1)2)

Contact Info

Product

Resources

About

MELANIN FORMATION IN COLOR VARIETIES OF THE MEDAKA (ORYZIAS LATIPES)¹⁾²⁾

A QUANTITATIVE STUDY ON PHENOL OXIDASE OF SKINS IN COLOR VARIETIES OF THE MEDAKA (ORYZIAS LATIPES)¹⁾

ON THE PHENOL OXIDASE OF EMBRYONIC AND LARVAL STAGES OF THE MEDACA (ORYZIAS LATIPES)¹⁾²⁾