I found that transgene expression driven by maize Ubi1 promoter was strongly induced in pathogen inoculated plants.
I would be grateful for any information or directions to the literature that expression driven by the maize UBi1 promoter is (or is not) induced by biotic stress.
The following study tells that
"Transient expression of Ubi-l in kernels grown in vitro was not affected by wounding, ethylene treatment, pathogen invasion, or heat shock. In contrast, the plant hormones indole-3-acetic acid and kinetin both stimulated transient Ubi-1 expression in the endosperm, particularly at the periphery. Transient gene expression in developing maize seeds grown in vitro should allow for facile and rapid evaluation of the tissue-specificity and environmental responses of novel gene constructs in developing maize seeds"
https://pdfs.semanticscholar.org/443b/c8cb08814e4a33017a024f55e336952d4de1.pdf
But the following study shows:
http://www.plantphysiol.org/content/167/3/1087
that there is increased expression after pathogen infection (the gene is driven by ubiquitin promoter).
It is better to analyse the conserved motifs in the promoter sequence to find any pathogen inducible motifs
Thank you for the comment and the information.
Shortly after placing a post I found a paper by Zhang et al. (New Phytologist, 2012, 196: 1155-1170). Their results indicated that transgene expression in wheat driven by the Ubi1 promoter could be induced by biotic stress, in that case it was inoculation by pathogen Bipolaris sorokiniana.
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