The movement of pigment within the chromatophores of Palaemonetes

Perkins, Earle B.; Snook, Theodore

doi:10.1002/jez.1400610107

Cited by 17 publications

(5 citation statements)

References 12 publications

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“…The results presented in Figures 1 and 2 showing that some eyestalk extracts produced only dispersion of the white pigment while others produced only concentration provide an explanation for the apparently inconsonant reports of Perkins and Snook (1932) who, as stated above, reported on the one hand that eyestalk extracts caused dispersion of the white pigment of Palacmonctcs and of Brown (1935) and Hanstrom (1937) on the other who reported that these extracts caused concentration. It is conceivable that by chance alone these investigators obtained eyestalks which showed only one effect.…”

Section: Discussionmentioning

confidence: 56%

“…Examination of the literature dealing with the leucophores of the prawn, Palaemonetes vulgaris, reveals that Perkins and Snook (1932) reported that the eyestalks of this organism contain a substance which causes dispersion of its white chromatophoric pigment whereas later Brown (1935) and Hanstrom (1937) using the same species came to the opposite conclusion, namely that the eyestalk contains a white pigment-concentrating substance. Both Brown and Hanstrom suggested that dispersion of the white pigment was due to absence of the pigmentconcentrating substance.…”

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confidence: 99%

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DUAL CONTROL OF THE LEUCOPHORES IN THE PRAWN,PALAEMONETES VULGARIS, BY PIGMENT-DISPERSING AND PIGMENT-CONCENTRATING SUBSTANCES

Fingerman

1970

The Biological Bulletin

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Section: Discussionmentioning

confidence: 56%

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confidence: 99%

DUAL CONTROL OF THE LEUCOPHORES IN THE PRAWN,PALAEMONETES VULGARIS, BY PIGMENT-DISPERSING AND PIGMENT-CONCENTRATING SUBSTANCES

Fingerman

1970

The Biological Bulletin

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“…71) and 8). Perkins and Snook ( 1932) investigated the movement of the red carotenoprotein pigment in chromatophores of the prawn Palacinonctes. They found the red pigment to be granular in nature and suggested that the "granules and the protoplasmic medium in which they are carried flow out into collapsed tubes which are the walls of the branched chromatophore, fixed in position, and lying in tissue spaces."…”

Section: Resultsmentioning

confidence: 99%

AN AUTORADIOGRAPHIC ANALYSIS OF MELANOGENESIS IN THE FIDDLER CRAB,UCA PUGNAX(S. I. SMITH)

Green

1969

The Biological Bulletin

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The epidermis plays a central role in the metabolic activities of Crustacea. One facet of these activities involves pigment cells in which two distinct phases of behavior can be distinguished: (1) physiological color change, a rapid mobilization of pigment leading to pigment migration, probably within pre-established cellular channels, and (2), morphological color change, a slower modification of the quantity of pigment per chromatophore or of chromatophore number per unit area of epidermis (Brown, 1934; Green, 1964a, b). An hypothesis (Babak. 1912: Brown. 1934) which closely relates morphological color change to physiological color change may not be valid for crustacean. Specifically, there seems to be no correlation between the state of pigment dispersal within the chromatophore and melanin synthesis (Green, 1964b).The present study reports the results of autoradiographic analysis of melanin formation in fiddler crab epidermis. MATERIAL AND METHODSAutoradiography at the tissue lez'el Kukita and Fitzpatrick (1955) and Brunet and Small (1959) prepared autoradiographs for a study of melanogenesis from human and mouse tissue. In both cases tissue was incubated in 14 C-tyrosine, which is incorporated into insoluble melanin if the melanocytes are active. Both teams of workers reported difficulty in observing exposed silver grains against the background of melanin. This difficulty is partially obviated with fiddler crab tissue because the pigment is periodically distributed into the finest processes of the melanophore. When so distributed the pigment density is such that melanin granules and silver grains can be distinguished. The use of phase contrast optics also heightens the optical disparity between silver grains and melanin granules. Illumination through a trinocular tube of the microscope is reflected from silver grains and provides an additional aid in distinguishing melanin granules and silver grains.Male specimens of Uca pitia.r were collected from the salt marsh at Sippewisset, Massachusetts, and brought to the Marine Biological Laboratory, \Yoocls

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“…The chromatophores of Palaemonetes spp. have been studied extensively in the past with regard to the factors involved in pigment migration in crustaceans (Perkins and Snook, 1932;Brown, 1935;Brown, Webb, and Sandeen, 1952;Fingerman and Tinkle, 1956;Fingerman, 1978, 1979). The first of these chromatophores develop in the embryo and are easily observed through the transparent chorion (Glas et al, 1997, Romney andReiber, 2013).…”

Section: Introductionmentioning

confidence: 99%

Developmental Dynamics of Green Fluorescent Chromatophores in the Daggerblade Grass Shrimp, Palaemonetes Pugio Holthuis, 1949 (Decapoda, Caridea, Palaemonidae)

Phelps

2018

Preprint

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The daggerblade grass shrimp, Palaemonetes pugio Holthuis 1949 relies heavily on transparency as the primary form of camouflage yet possess several types of pigmented chromatophores located throughout the body. A distinct sub-population of yellow/white chromatophores have been discovered to exhibit brilliant green fluorescence. These cells develop in the embryo and are the primary chromatophore present in larval organisms. Post-larval grass shrimp undergo a major restructuring of the pattern and morphology of fluorescent chromatophores after metamorphosis with chromatophores found uniformly distributed throughout the body and at high concentration on the hepatopancreas and the eye stalks. In adult P. pugio the number of fluorescent chromatophores is significantly reduced and fluorescence is limited to only a subset of these chromatophores. The novel fluorescent properties of these cells, there relatively high abundance during early life stages, and pattern of development, suggest important cellular functions for these fluorescent chromatophores in grass shrimp.

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The movement of pigment within the chromatophores of Palaemonetes

Cited by 17 publications

References 12 publications

DUAL CONTROL OF THE LEUCOPHORES IN THE PRAWN,PALAEMONETES VULGARIS, BY PIGMENT-DISPERSING AND PIGMENT-CONCENTRATING SUBSTANCES

DUAL CONTROL OF THE LEUCOPHORES IN THE PRAWN,PALAEMONETES VULGARIS, BY PIGMENT-DISPERSING AND PIGMENT-CONCENTRATING SUBSTANCES

AN AUTORADIOGRAPHIC ANALYSIS OF MELANOGENESIS IN THE FIDDLER CRAB,UCA PUGNAX(S. I. SMITH)

Developmental Dynamics of Green Fluorescent Chromatophores in the Daggerblade Grass Shrimp, Palaemonetes Pugio Holthuis, 1949 (Decapoda, Caridea, Palaemonidae)

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