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Published on: January 18, 2017
Light regulated transcription in higher plants
1Graduate School of Biological Sciences, Nara Institute of Science and Technology, Takayama-cho, Ikoma, 630-01, Nara, Japan.
Abstract:
Studies on the function of plant promoters have demonstrated the presence of regulatorycis-acting elements that mediate developmental or environmental signals. Analysis of many light-responsive genes showed thatcis-acting elements responsible for light regulated transcription are located within the 5' upstream region. Numerous light responsivecis-acting elements andtrans-acting factors have been identified and characterized. The present article reviews the recent advances in studies of light regulated transcriptional regulation and signal transduction.
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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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The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...

