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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Cell Motility and th...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Cell Motility and the Cytoskeleton
Article . 1990 . Peer-reviewed
License: Wiley Online Library User Agreement
Data sources: Crossref
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Actin‐dependent carotenoid droplet dispersion in permeabilized cultured goldfish xanthophores

Authors: F X, Yu; J D, Taylor; T T, Tchen;

Actin‐dependent carotenoid droplet dispersion in permeabilized cultured goldfish xanthophores

Abstract

AbstractOrganelle translocations are essential cellular processes. Although much progress has been made with regards to microtubule‐dependent organelle translocations, little is known about actin‐dependent organelle translocation(s) except cytoplasmic streaming in Nitella. On the other hand, there is indirect evidence that actindependent organelle translocation may be involved in secretion. We now present evidence that the dispersion of the pigment organelles carotenoid droplets in goldfish xanthophores is apparently actin dependent and that this process may be related to secretory processes. We show that, in digitonin‐permeabilized goldfish xanthophores, the pigment organelles can be induced to disperse by a combination of cAMP, ATP, and xanthophore cytosol. This induced dispersion is inhibited by DNase I, phalloidin, or anti‐actin, but not by anti‐tubulin or anti‐intermediate filament proteins, suggesting a dependence on F‐actin. Since the dispersion of carotenoid droplets and secretion both involve outward translocation of organelles, we tested the possibility that cytosols of secretory tissues have similar activity. Such activity was indeed found in different tissues, apparently in parallel with the secretory activity of the tissues, suggesting that pigment dispersion in xanthophores and some secretory processes may share a common component.

Related Organizations
Keywords

Organelles, Phalloidine, Pigmentation, Cyprinidae, Digitonin, Carotenoids, Actins, Adenosine Triphosphate, Goldfish, Cyclic AMP, Animals, Cells, Cultured

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
15
Average
Average
Top 10%
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