ArticleMolecular & general genetics : MGG1993
Multiple regions of a divergent promoter control the expression of the Agrobacterium rhizogenes aux1 and aux2 plant oncogenes.
Article in Molecular & general genetics : MGG, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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4 citing papers in PubMed, 14 citations in OpenAlex.
- Enhancing Centelloside Production inPlants (Basel, Switzerland) · 2023Article
- Function of the aux and rol genes of the Ri plasmid in plant cell division in vitro.Plant signaling & behavior · 2009Article
- Expression of Agrobacterium rhizogenes auxin biosynthesis genes in transgenic tobacco plants.Plant molecular biology · 1995Article
- A reporter gene under the control of tms or aux promoters is differentially expressed in tobacco and barley protoplasts.Plant cell reports · 1994Article
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Authors and funding
3 authors at 1 institution in 1 country.
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Abstract
The two auxin biosynthesis genes, aux1 and aux2 of Agrobacterium rhizogenes strain A4, are located on opposite DNA strands with a short integenic region (394 bp) between their coding sequences. A functional analysis of this divergent promoter is presented. The transcription initiation sites of the two aux genes were determined and regions important for promoter activity were identified by deletion and transient expression analyses in tobacco protoplasts. The promoter activity of the aux intergenic region was demonstrated. A strong enhancer element contained within an 84 bp promoter fragment was identified. Far upstream regions were shown to have negative effects on the promoter activity of the short intergenic region. Interactions between positive elements in the intergenic region and negative effects of the upstream sequences may be the basis of strict control of the auxin biosynthesis necessary for the induction and maintenance of hairy root growth.
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