{"title":"放线菌素d处理和正常鸡胚中二氢羟酸脱氢酶的活性。","authors":"S M Katdare, M Katdare, P N Joshi, L Mulherkar","doi":"10.1159/000163493","DOIUrl":null,"url":null,"abstract":"<p><p>The effect of actinomycin D on chick embryos cultivated in vitro by New's culturing method was studied. Exposure of chick embryos to actinomycin D (0.05 micrograms/ml) at the primitive streak stage (stage 4; Hamburger and Hamilton) for 6 h showed interference in orotic acid formation. The assay of the enzyme dihydroorotic acid dehydrogenase was carried out in both treated and control embryos. No enzymic activity was observed in actinomycin-D-treated embryos in contrast to the considerable activity in the controls. These observations suggest an interference by actinomycin D in the biogenesis of the enzyme dihydroorotic acid dehydrogenase.</p>","PeriodicalId":75839,"journal":{"name":"Experimental cell biology","volume":"56 6","pages":"285-8"},"PeriodicalIF":0.0000,"publicationDate":"1988-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000163493","citationCount":"0","resultStr":"{\"title\":\"Dihydroorotic acid dehydrogenase activity in actinomycin-D-treated and normal chick embryos.\",\"authors\":\"S M Katdare, M Katdare, P N Joshi, L Mulherkar\",\"doi\":\"10.1159/000163493\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The effect of actinomycin D on chick embryos cultivated in vitro by New's culturing method was studied. Exposure of chick embryos to actinomycin D (0.05 micrograms/ml) at the primitive streak stage (stage 4; Hamburger and Hamilton) for 6 h showed interference in orotic acid formation. The assay of the enzyme dihydroorotic acid dehydrogenase was carried out in both treated and control embryos. No enzymic activity was observed in actinomycin-D-treated embryos in contrast to the considerable activity in the controls. These observations suggest an interference by actinomycin D in the biogenesis of the enzyme dihydroorotic acid dehydrogenase.</p>\",\"PeriodicalId\":75839,\"journal\":{\"name\":\"Experimental cell biology\",\"volume\":\"56 6\",\"pages\":\"285-8\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1159/000163493\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Experimental cell biology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1159/000163493\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Experimental cell biology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1159/000163493","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Dihydroorotic acid dehydrogenase activity in actinomycin-D-treated and normal chick embryos.
The effect of actinomycin D on chick embryos cultivated in vitro by New's culturing method was studied. Exposure of chick embryos to actinomycin D (0.05 micrograms/ml) at the primitive streak stage (stage 4; Hamburger and Hamilton) for 6 h showed interference in orotic acid formation. The assay of the enzyme dihydroorotic acid dehydrogenase was carried out in both treated and control embryos. No enzymic activity was observed in actinomycin-D-treated embryos in contrast to the considerable activity in the controls. These observations suggest an interference by actinomycin D in the biogenesis of the enzyme dihydroorotic acid dehydrogenase.
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