Shedding light on plant metabolism.
In work with scientists at the Monsanto Co. of St. Louis, Chua and colleagues have moved DNA containing a light-activated gene from pea plants into petunia cells. Originally the DNA transferred included 1,000 nucleotides adjacent to the beginning of the protein-encoding region. In subsequent experiments, the flanking region was repeatedly trimmed, and the level of gene expression declined. But light continued to activate the gene until only 35 nucleotides remained adjacent to the coding sequence. Chua concludes that this short segment of DNA must be at least in part responsible for light activation of the gene.
|Printer friendly Cite/link Email Feedback|
|Date:||Mar 9, 1985|
|Previous Article:||Lighting up the lives of the depressed.|
|Next Article:||Asbestos in babies.|