Abstract
We have shown that auxin represses soybean (Glycine max L.) vegetative storage protein gene (Vsp) expression in suspension-cultured cells and in leaves and petioles of excised trifoliates. The auxin analog naphthyleneacetic acid (NAA) at 10 [mu]M strongly inhibited methyl jasmonate-induced Vsp expression in soybean suspension-cultured cells. Both indole-3-acetic acid and NAA inhibited methyl jasmonate- and wound-induced expression of the Vsp and LoxA excised soybean trifoliate leaves and petioles. The less active auxin analog phenylacetic acid had less effect on methyl jasmonate- and wound-induced expression of these genes. Addition of cytokinin to alter the auxin:cytokinin ratio did not reverse auxin inhibition of Vsp expression. Transcription of [beta]-glucuronidase (Gus) modulated by a methyl jasmonate-responsive domain derived from the VspB promoter was minimally influenced by auxin. In contract, sucrose-induced expression of Gus mediated by a sucrose-responsive domain of the VspB promoter was strongly inhibited by NAA. We conclude that auxin inhibits Vsp mRNA accumulation, in part, by repressing sugar-mediated activation of Vsp expression.
Full Text
The Full Text of this article is available as a PDF (618.7 KB).
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Bell E., Mullet J. E. Lipoxygenase gene expression is modulated in plants by water deficit, wounding, and methyl jasmonate. Mol Gen Genet. 1991 Dec;230(3):456–462. doi: 10.1007/BF00280303. [DOI] [PubMed] [Google Scholar]
- Bradford M. M. A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem. 1976 May 7;72:248–254. doi: 10.1016/0003-2697(76)90527-3. [DOI] [PubMed] [Google Scholar]
- DeWald D. B., Mason H. S., Mullet J. E. The soybean vegetative storage proteins VSP alpha and VSP beta are acid phosphatases active on polyphosphates. J Biol Chem. 1992 Aug 5;267(22):15958–15964. [PubMed] [Google Scholar]
- Farmer E. E., Johnson R. R., Ryan C. A. Regulation of expression of proteinase inhibitor genes by methyl jasmonate and jasmonic Acid. Plant Physiol. 1992 Mar;98(3):995–1002. doi: 10.1104/pp.98.3.995. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Farmer E. E., Ryan C. A. Interplant communication: airborne methyl jasmonate induces synthesis of proteinase inhibitors in plant leaves. Proc Natl Acad Sci U S A. 1990 Oct;87(19):7713–7716. doi: 10.1073/pnas.87.19.7713. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hagen G., Guilfoyle T. J. Rapid induction of selective transcription by auxins. Mol Cell Biol. 1985 Jun;5(6):1197–1203. doi: 10.1128/mcb.5.6.1197. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Jefferson R. A., Kavanagh T. A., Bevan M. W. GUS fusions: beta-glucuronidase as a sensitive and versatile gene fusion marker in higher plants. EMBO J. 1987 Dec 20;6(13):3901–3907. doi: 10.1002/j.1460-2075.1987.tb02730.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mason H. S., DeWald D. B., Mullet J. E. Identification of a methyl jasmonate-responsive domain in the soybean vspB promoter. Plant Cell. 1993 Mar;5(3):241–251. doi: 10.1105/tpc.5.3.241. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mason H. S., Dewald D. B., Creelman R. A., Mullet J. E. Coregulation of soybean vegetative storage protein gene expression by methyl jasmonate and soluble sugars. Plant Physiol. 1992 Mar;98(3):859–867. doi: 10.1104/pp.98.3.859. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mason H. S., Mullet J. E. Expression of two soybean vegetative storage protein genes during development and in response to water deficit, wounding, and jasmonic acid. Plant Cell. 1990 Jun;2(6):569–579. doi: 10.1105/tpc.2.6.569. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Meyer Y., Chartier Y., Alibert G. Auxin reduces the synthesis of major vacuolar proteins in tobacco mesophyl protoplast. Plant Physiol. 1987 Mar;83(3):713–718. doi: 10.1104/pp.83.3.713. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pēna-Cortés H., Sánchez-Serrano J. J., Mertens R., Willmitzer L., Prat S. Abscisic acid is involved in the wound-induced expression of the proteinase inhibitor II gene in potato and tomato. Proc Natl Acad Sci U S A. 1989 Dec;86(24):9851–9855. doi: 10.1073/pnas.86.24.9851. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Smigocki A. C., Owens L. D. Cytokinin-to-Auxin Ratios and Morphology of Shoots and Tissues Transformed by a Chimeric Isopentenyl Transferase Gene. Plant Physiol. 1989 Nov;91(3):808–811. doi: 10.1104/pp.91.3.808. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Tranbarger T. J., Franceschi V. R., Hildebrand D. F., Grimes H. D. The soybean 94-kilodalton vegetative storage protein is a lipoxygenase that is localized in paraveinal mesophyll cell vacuoles. Plant Cell. 1991 Sep;3(9):973–987. doi: 10.1105/tpc.3.9.973. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wittenbach V. A. Purification and characterization of a soybean leaf storage glycoprotein. Plant Physiol. 1983 Sep;73(1):125–129. doi: 10.1104/pp.73.1.125. [DOI] [PMC free article] [PubMed] [Google Scholar]