Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"pigment granules"”.
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Eyespot Assembly and Positioning in Chlamydomonas reinhardtii
… plasma membrane and stacks of carotenoid-rich pigment granule arrays in the chloroplast and serves as a model for understanding how organelles are formed and placed asymmetrically in the cell. This study describes the roles of several factors in the assembly and positioning of the eyespot. Two …
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Carbachol-Induced Pigment Granule Dispersion
The retinal pigment epithelium (RPE) is a monolayer of pigmented, simple cuboidal epithelium with long apical processes that interdigitate with photoreceptors. In teleosts, the RPE aids in light adaptation through pigment granule movements. In the bright light, pigment granules are dispersed into …
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Studies on the Granule-Moving System of Melanocytes of Fundulus Heteroclitus
<p>Pigment granules in melanocytes of Fundulus heteroclitus exhibit both local movements and long distance intracellular migrations in response to hormones. These movements have been studied and a theory of the granule moving system has been proposed: The granules are in a structured continuum …
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Mechanisms and Regulation of Organelle Transport in Xenopus Melanophores
… We have addressed these issues by studying pigment granule motility in Xenopus melanophores. These dermal cells are able to cyclically transport pigment granules, termed melanosomes, either to aggregate to the cell center or disperse throughout the cell in response to hormonal stimulus to …
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Induction of the retinal pigment epithelium of the chicken embryonic eye
… part of which differentiates into the retinal pigment epithelium (RPE). The molecular mechanisms which control differentiation of the RPE are not known. The present study was undertaken to determine 1) when induction of the RPE has occurred in chicken embryos and 2) to investigate whether …