Studies on Freezing Storage of Sea Urchin-II
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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 کاملStudies of the irradiation protection effect of fetal liver in mice. II. Storage by freezing.
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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 کاملSea Urchin Bioassays in Toxicity Testing: II. Sediment Evaluation
Bioassays on sea urchin early life stages have been used extensively in evaluating the pollution impact on seawater, coastal sediments, and other matrices as soil, freshwater sediment, and industry effluents. Here we review the literature in this field to determine whether testing whole sediment vs. pore water or elutriates by sea urchin bioassays provides a better estimation of actual risk. Th...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1970
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.36.812