Synthèse et translocation de RNA dans les cellules radiculaires deZea maysau début de la germination

✍ Scribed by R. Deltour

• Book ID: 104750804
• Publisher: Springer-Verlag
• Year: 1970
• Tongue: English
• Weight: 762 KB
• Volume: 92
• Category: Article
• ISSN: 0032-0935
• DOI: 10.1007/bf00388557

✦ Synopsis

Regule 14 mars 1970 R N A Synthesis and Transloeation in Root Cells of Zea mays during E a r l y Stages of Germination

Summary. RNA synthesis in root of germinating corn during the period extending from the 4th to the 8th hr after soaking is localized exclusively in the chromatin. This unusual situation allowed us to follow easily by section autoradiography the fate of the chromatin-syathesized RNA. The embryo was pulse-labeled with 3H-uridine from the 6th to the 8th hr after soaking and chased with cold uridine (2 hr) and then left in water (40 hr). It was found that during the chase a large amount of the chromatin-synthesized RNA moves to the nucleolus, where it is accumulated, and that a small amount finally reaches the cytoplasm.