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Wilehm Roux Arch Dev Biol
1981 Sep 01;1905:267-273. doi: 10.1007/BF00848754.
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Distribution and redistribution of pigment granules in the development of sea urchin embryos.
Tanaka Y
.
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Pigment granules (PGs) are embeded in the cortex of embryos of the Japanese sea urchins,Hemicentrotus pulcherrimus and Anthocidaris crassispina. PGs in the cortex actively retreated from the vegetal pole area at the 4-cell stage and then a notable PG-distribution gradient formed along the egg axis (the polar redistribution of PGs). The polar redistribution of PGs in the cortex occurred at the same time after fertilization even in solutions of microtubule disrupting reagents such as Colcemid, vinblastine sulfate or griseofulvin. Consequently, the polar redistribution of PGs was not associated with the microtubules. However, the polar redistribution of PGs was interrupted in seawater containing cytochalasin B (CB), dithiothreitol (DTT) or tetracaine, and the distribution pattern of PGs in the cortex was definitely disturbed. Moreover, CB, DTT and tetracaine altered the division pattern of vegetal blastomeres at the 4th cleavage which is normally unequal so that all the blastomeres divided equally. Microtubule disrupting reagents did not have such an effect on the cleavage pattern. Thus the cortical movement along the egg axis reflected by the polar redistribution of PGs seems to correlate with the micromere formation.
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,
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Studies on nucleocytoplasmic interactions during early amphibian development. I. Localized destruction of the egg cortex.
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CURTIS,
Morphogenetic interactions before gastrulation in the amphibian, Xenopus laevis--the cortical field.
1962,
Pubmed
Czihak,
The role of astral rays in early cleavage of sea urchin eggs.
1974,
Pubmed
,
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Dan,
On the system controlling the time fo micromere formation in sea urchin embryos.
1971,
Pubmed
,
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Ikeda,
Behaviour of sulfhydryl groups of sea urchin eggs under the blockage of cell division by UV and heat shock.
1965,
Pubmed
,
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Kane,
Preparation and purification of polymerized actin from sea urchin egg extracts.
1975,
Pubmed
,
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Nicolson,
Cell shape changes and transmembrane receptor uncoupling induced by tertiary amine local anesthetic.
1976,
Pubmed
PASTEELS,
THE MORPHOGENETIC ROLE OF THE CORTEX OF THE AMPHIBIAN EGG.
1964,
Pubmed
Papahadjopoulos,
Studies on the mechanism of action of local anesthetics with phospholipid model membranes.
1972,
Pubmed
Rebhun,
Polarized intracellular particle transport: saltatory movements and cytoplasmic streaming.
1972,
Pubmed
Rebhun,
Structural aspects of saltatory particle movement.
1967,
Pubmed
Schroeder,
Actin in dividing cells: contractile ring filaments bind heavy meromyosin.
1973,
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Schroeder,
The contractile ring. II. Determining its brief existence, volumetric changes, and vital role in cleaving Arbacia eggs.
1972,
Pubmed
,
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Schroeder,
Expressions of the prefertilization polar axis in sea urchin eggs.
1980,
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,
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Spudich,
Actin in triton-treated cortical preparations of unfertilized and fertilized sea urchin eggs.
1979,
Pubmed
,
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Tyler,
Crystalline Echinochrome and Spinochrome: Their Failure to Stimulate the Respiration of Eggs and of Sperm of Strongylocentrotus.
1939,
Pubmed
,
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Wolfe,
Inhibition of nuclear reconstruction by dithiothreitol.
1974,
Pubmed
,
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