[RNA synthesis and translocation in root cells of Zea mays during early stages of germination]
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Updated: May 3, 2026

Lateral Root Inducible System in Arabidopsis and Maize
Published on: January 14, 2016
1Départment de Botanique, Laboratoire de Physiologie, Université de Liège, Liège, Bertique.
Abstract:
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-synthesized RNA. The embryo was pulse-labeled with (3)H-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.
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Transcription
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
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