The relation of DNA and protein synthesis to the meiotic-mitotic transition in the zygote of Urechis caupo☆
[摘要] InUrechiseggsfertilizationresultsinatwo-tofourfoldincreaseinproteinsynthesiswhichcanbecompletelyinhibitedbycycloheximide.Thisinhibitiondoesnotpreventnormalmeiosis,chromosomedecondensation,orpronuclearfusion.ItdoesinhibitDNAsynthesisandfirstcleavageifthedrugisaddedupto55minpostfertilization.Ifaddedafterthistime,firstcleavageproceedsnormallybutsecondcleavageisinhibited.Artificiallyactivatedeggsdonotshowanincreaseinthelevelofproteinsynthesis,butdoundergonormalmeiosisandfirstS.However,theydonotformamitoticapparatusanddivide.Theseresultsarediscussedinthecontextofthenuclearandmacromolecularstateoftheunfertilizedeggandtherequirementsformeiosisandmitosis.
[发布日期] [发布机构]
[效力级别] [学科分类] 生物科学（综合）
[关键词] [时效性]
