MECHANISM OF STARFISH SPAWNING. I. DISTRIBUTION OF ACTIVE SUBSTANCE RESPONSIBLE FOR MATURATION OF OOCYTES AND SHEDDING OF GAMETES
MECHANISM OF STARFISH SPAWNING. I. DISTRIBUTION OF ACTIVE SUBSTANCE RESPONSIBLE FOR MATURATION OF OOCYTES AND SHEDDING OF GAMETES
复制标题
海星产卵机制。
DOI：
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发表时间：
1966
期刊：
影响因子：
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通讯作者：
M. Ohguri
中科院分区：
文献类型：
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作者：
H. Kanatani;M. Ohguri
1. 利用紫苑和海星，通过体外测定确定了负责成熟和配子脱落的活性物质在海星体内的定位。2．在雄性和雌性海星的桡神经中发现了相同浓度的活性物质，这表明睾丸比卵巢更容易对该物质的作用做出反应。两性的配子脱落物质似乎是相同的。3．通过分离卵巢碎片的脱落反应测定，神经环-桡神经系统各部位的活性物质含量（每干重冻干神经材料）是均匀的。 4．管足和体壁也含有相当数量的活性物质，但其含量比桡神经低数倍。 5．在海星其他一些神经组织丰富的区域的提取物中也可以检测到脱落活动......
1. The localization in the starfish body of the active substance responsible for maturation and gamete-shedding was determined by in vitro assay, using Asterias amurensis and Asterina pectinifera.2. The active substance was found in the radial nerves at the same concentration in both male and female starfish, suggesting that the testis responds more readily to the action of the substance than does the ovary. The gamete-shedding substance seems to be identical in the two sexes.3. As determined by the shedding reaction of isolated fragments of ovaries, the quantity of active substance (per dry weight of lyophilized nerve materials) was found to be uniform in various parts of the nerve ring-radial nerve system.4. Tube feet and the body wall also contained considerable amounts of the active substance, although the content was several times lower than that of the radial nerves.5. The shedding activity was also detectable in the extracts of some other regions of the starfish in which nervous tissue is plentiful...