Synthèse différentielle d'acide ribonucléique et différenciation sexuelle chez l'Allomyces
[摘要] TheRNA:DNAandRNA:proteinratioshavebeendeterminedatfoursuccessivestagesofsexualdifferentiationofmaleandfemalestrainsofAllomycesmacrogynus×A.arbuscula.TheRNA:DNAandRNA:proteinratiosincreasesharplyinthelaststagesoffemalegametangialmaturation,thisbeingduetoanactiveRNAsynthesisassociatedwiththeformationofthebigbasophilicnuclearcapsofthefuturefemalegametes.Inthemalegametangia,theRNA:proteinratioincreasesonlytoaslightextent,theRNAsynthesisbeinginproportionwiththethinnessofthemalegameticnuclearcaps.TheRNA:DNAratiotendsrathertodecrease,asaconsequenceoftheconcurrent,preliminarysynthesisofDNArequiredbythedifferentialmultiplicationofnucleiintheyoung,malegametangiaandasconfirmedbytheincreasedDNA:proteinratiosmeasured.NoticeistakenofthefactthattheRNAsynthesisinthenuclearcapforminggametangiaprecedesthatofprotein,whichappearstobepostponedtothegerminationofthezygotes.
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[效力级别] [学科分类] 生物科学(综合)
[关键词] [时效性]