Studies on Freezing Storage of Sea Urchin-III
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چکیده
منابع مشابه
Synthesis and Storage of Microtubule Proteins by Sea Urchin Embryos
Studies employing colchicine binding, precipitation with vinblastine sulfate, and acrylamide gel electrophoresis confirm earlier proposals that Arbacia punctulata and Lytechinus pictus eggs and embryos contain a store of microtubule proteins. Treatment of 150,000 g supernatants from sea urchin homogenates with vinblastine sulfate precipitates about 5% of the total soluble protein, and 75% of th...
متن کاملLaboratory on sea urchin fertilization.
Since about 1880, the eggs and sperm of sea urchins have been used for the study of fertilization, the metabolic activation of development and gene regulatory mechanisms governing embryogenesis. Sea urchin gametes are a favorite material for observations of the process of fertilization in advanced high school, community college, and university biology laboratory courses. This article is a labor...
متن کاملKinetic studies of the flagellar movement of sea-urchin spermatozoa.
In previous papers (Holwill & Silvester, 1965, 1967) results have been presented which support the hypothesis that the frequency of beating of a flagellum (hereinafter referred to simply as 'frequency') is identical with, or at least proportional to, a rate constant of the first-order chemical reaction which limits the frequency. If, as seems probable (e.g. Bishop, 1962; Brokaw, 1962) adenosine...
متن کاملCiliary Axonemes on Sea Urchin Embryos
Heterotrimeric kinesin-II is a plus end– directed microtubule (MT) motor protein consisting of distinct heterodimerized motor subunits associated with an accessory subunit. To probe the intracellular transport functions of kinesin-II, we microinjected fertilized sea urchin eggs with an anti–kinesin-II monoclonal antibody, and we observed a dramatic inhibition of ciliogenesis at the blastula sta...
متن کاملBuilding a Sea Urchin on Shifting Sands
Constructing a multicellular organism from scratch is a staggeringly challenging task. It seems even more miraculous when you consider that it’s actually entirely orchestrated by a few thousand genes and their protein products, acting (largely autonomously) within each one of the rapidly dividing cells. The most crucial of these genes and proteins regulate each other in intricately interconnect...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1970
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.36.932