DOI: 10.1111/j.1432-1033.1991.tb15832.x. Functional analysis of the pathogenesis‐related 1a protein gene minimal promoter region

Functional analysis of the pathogenesis‐related 1a protein gene minimal promoter region

10.1111/j.1432-1033.1991.tb15832.x

Crossref journal-article

Wiley

European Journal of Biochemistry (311)

Abstract

Pathogenesis‐related (PR) proteins are a heterogeneous group of host encoded, low‐molecular‐mass proteins that are induced in plants by various external stimuli, such as pathogen attack or exposure of the plants to certain chemicals. To examine the regulation of these genes, the 5′‐flanking region of the tobacco PR‐1a gene [Pfitzner U. M., Pfitzner, A. J. P. & Goodman, H. M. (1988) Mol. Gen. Genet. 211, 290–295] was joined by a transcriptional fusion to the Escherichia coliβ‐glucuronidase (GUS) gene. Expression of the reporter gene was monitored in transient expression assays as well as in stable transformants. The PR‐1a 5′‐flanking sequences from ‐335, ‐149 or ‐71 to +28 are functional promoter elements in tobacco and carrot protoplasts, as determined by transient expression. These constructs direct correct initiation at the normal transcription‐start site of the PR‐1a gene. The level of gene expression was about twofold less than that obtained with the cauliflower mosaic virus 35S RNA promoter. Regulation of gene expression by acetylsalicylic acid, however, could not be detected in the transient assays. When the same constructs were stably integrated into the tobacco genome, neither constitutive nor induced β‐glucuronidase activity was observed. A comparison of the results from the transient and the stable transfection experiments suggests that expression of the reporter gene may be due to a constitutive transcriptional activity of the PR‐1a 5′‐flanking regions under the conditions of the transient assays and that the PR‐1a promoter may contain at least two functional domains.

Bibliography

BEILMANN, A., PFITZNER, A. J. P., GOODMAN, H. M., & PFITZNER, U. M. (1991). Functional analysis of the pathogenesisârelated 1a protein gene minimal promoter region. European Journal of Biochemistry, 196(2), 415â421. Portico.

Authors 4

Andrea BEILMANN (first)
Artur J. P. PFITZNER (additional)
Howard M. GOODMAN (additional)
Ursula M. PFITZNER (additional)

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Dates

Type	When
Created	20 years, 6 months ago (March 3, 2005, 11:51 p.m.)
Deposited	1 year, 9 months ago (Nov. 22, 2023, 4:53 p.m.)
Indexed	1 month ago (Aug. 5, 2025, 8:24 a.m.)
Issued	34 years, 6 months ago (March 1, 1991)
Published	34 years, 6 months ago (March 1, 1991)
Published Online	20 years, 6 months ago (March 3, 2005)
Published Print	34 years, 6 months ago (March 1, 1991)

Funders 0

None

BibTeX

@article{BEILMANN_1991, title={Functional analysis of the pathogenesis‐related 1a protein gene minimal promoter region: Comparison of reporter gene expression in transient and in stable transfections}, volume={196}, ISSN={1432-1033}, url={http://dx.doi.org/10.1111/j.1432-1033.1991.tb15832.x}, DOI={10.1111/j.1432-1033.1991.tb15832.x}, number={2}, journal={European Journal of Biochemistry}, publisher={Wiley}, author={BEILMANN, Andrea and PFITZNER, Artur J. P. and GOODMAN, Howard M. and PFITZNER, Ursula M.}, year={1991}, month=mar, pages={415–421} }

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