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Association of Pigmentary Organelles, Carotenoid Droplets, with Endoplasmic Reticulum in Goldfish Xanthophores and Swordtail Fish Erythrophores by Victoria A. Kimler; T. T. Tchen; John D. Taylor is a Environmental Science article available to read on EtoBox.

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## Abstract A modified procedure for whole mount transmission electron microscopy (WMTEM) was utilized, for electron microscopes with accelerating voltages of 80 to 100 kV, to view the outer 40% of goldfish __(Carassius auratus__ [Linneaus]) xanthophores and swordtail fish __(Xiphophorus hellerii__ [Heckel]) erythrophores. This viewing region covers most of the lamellae and all of the filopodia and cellular processes. In this region one can observe three of the four physiological states: pigment dispersing, pigment fully dispersed, and pigment aggregating. The pigment in the fourth state, fully aggregated, cannot be viewed because of thickness of the cell body and is not addressed in this report. In goldfish xanthophores and swordtail fish erythrophores, the primary pigmentary organelle, the carotenoid droplet, is not a discrete organelle but is either associated with or attached to an extended tubulovesicular structure. Carotenoid droplet translocations appear to be dependent upon external cues which result in the elongation or retraction of these tubulovesicular structures. Tubulovesicular structures are continous with membranous sacs, which we termed carotenoid bodies. Based upo

Who reads Association of Pigmentary Organelles, Carotenoid Droplets, with Endoplasmic Reticulum in Goldfish Xanthophores and Swordtail Fish Erythrophores?

Author

Victoria A. Kimler; T. T. Tchen; John D. Taylor

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0022-104X)

Published

1993

Language

EN

Field

Environmental Science (Life Sciences)