Analysis of mustard trypsin inhibitor-2 gene expression in response to developmental or environmental induction.
Transcription analysis of a mustard (Sinapis alba L.) serine proteinase inhibitor gene revealed identical 5' termini of mRNAs synthesized during seed maturation and chemical or wounding induction. Polyadenylation of mRNAs on multiple or single sites differentiated gene expression, increasing the availability of stable mRNAs during seed maturation compared with chemical and wounding induction. Expression of the beta-glucuronidase (GUS)-encoding region of the UidA reporter gene, detected under the control of deleted segments of the region flanking on the 5' side the mit-2 gene, identified a stretch of about 520 bp essential for gene expression. The presence in this region of two ABRE motifs is relevant for plant response to gene induction. Expression of GUS was detectable under different induction stimuli in several organs such as seedlings and leaves and was active to varying extents in the vascular tissues and meristem.[1]References
- Analysis of mustard trypsin inhibitor-2 gene expression in response to developmental or environmental induction. De Leo, F., Ceci, L.R., Jouanin, L., Gallerani, R. Planta (2001) [Pubmed]
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