Abstract
Responses of [beta]-tubulin gene expression to low-temperature exposure (4[deg]C) have been investigated in leaves of Arabidopsis thaliana. During low-temperature exposure, the patterns of both [alpha]- and [beta]-tubulin isoforms are altered; the effect is smaller for the [alpha]-tubulins than for the [beta]-tubulins, however. An examination of [beta]-tubulin gene expression revealed that during low-temperature exposure, transcript levels of TUB2, TUB3, TUB6, and TUB8 decrease, whereas those of TUB4, TUB5, and TUB7 remain constant, and the TUB9 transcript level increases. The changes in transcript levels of TUB6, TUB8, and TUB9 were detectable after 6 h of low-temperature treatment. As shown by transcription-blocking experiments, the in vivo decay rates at 25[deg]C are comparable to those at 4[deg]C for TUB5, TUB6, and TUB8 mRNAs, whereas TUB9 mRNA appears to be more stable at 4[deg]C than at 25[deg]C. Thus, decreases in transcript levels of TUB6 and TUB8 in response to low temperature appear to be regulated at the transcriptional level, and the increase in TUB9 transcript level that results from lowering the temperature from 25[deg]C to 4[deg]C may be due in part to its slower rate of decay at 4[deg]C. When a chimeric gene containing 1061 base pairs of TUB8 5[prime] flanking DNA fused to the [beta]-glucuronidase coding region was used to produce transgenic Arabidopsis plants, the chimeric gene expression was down-regulated in response to low temperature as assayed by histochemical localization and RNA gel blots. These results confirm that the alteration of transcript levels of TUB8 in response to low temperature is regulated at the transcriptional level.
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- Brock M. L., Shapiro D. J. Estrogen stabilizes vitellogenin mRNA against cytoplasmic degradation. Cell. 1983 Aug;34(1):207–214. doi: 10.1016/0092-8674(83)90151-4. [DOI] [PubMed] [Google Scholar]
- Crespi M. D., Zabaleta E. J., Pontis H. G., Salerno G. L. Sucrose Synthase Expression during Cold Acclimation in Wheat. Plant Physiol. 1991 Jul;96(3):887–891. doi: 10.1104/pp.96.3.887. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gilmour S. J., Hajela R. K., Thomashow M. F. Cold Acclimation in Arabidopsis thaliana. Plant Physiol. 1988 Jul;87(3):745–750. doi: 10.1104/pp.87.3.745. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hajela R. K., Horvath D. P., Gilmour S. J., Thomashow M. F. Molecular Cloning and Expression of cor (Cold-Regulated) Genes in Arabidopsis thaliana. Plant Physiol. 1990 Jul;93(3):1246–1252. doi: 10.1104/pp.93.3.1246. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Han I. S., Jongewaard I., Fosket D. E. Limited expression of a diverged beta-tubulin gene during soybean (Glycine max [L.] Merr.) development. Plant Mol Biol. 1991 Feb;16(2):225–234. doi: 10.1007/BF00020554. [DOI] [PubMed] [Google Scholar]
- Hu N., Messing J. The making of strand-specific M13 probes. Gene. 1982 Mar;17(3):271–277. doi: 10.1016/0378-1119(82)90143-3. [DOI] [PubMed] [Google Scholar]
- Hussey P. J., Lloyd C. W., Gull K. Differential and developmental expression of beta-tubulins in a higher plant. J Biol Chem. 1988 Apr 15;263(11):5474–5479. [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]
- Johnson-Flanagan A. M., Singh J. Alteration of Gene Expression during the Induction of Freezing Tolerance in Brassica napus Suspension Cultures. Plant Physiol. 1987 Nov;85(3):699–705. doi: 10.1104/pp.85.3.699. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Joshi H. C., Cleveland D. W. Diversity among tubulin subunits: toward what functional end? Cell Motil Cytoskeleton. 1990;16(3):159–163. doi: 10.1002/cm.970160302. [DOI] [PubMed] [Google Scholar]
- Klaff P., Gruissem W. Changes in Chloroplast mRNA Stability during Leaf Development. Plant Cell. 1991 May;3(5):517–529. doi: 10.1105/tpc.3.5.517. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kopczak S. D., Haas N. A., Hussey P. J., Silflow C. D., Snustad D. P. The small genome of Arabidopsis contains at least six expressed alpha-tubulin genes. Plant Cell. 1992 May;4(5):539–547. doi: 10.1105/tpc.4.5.539. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kurkela S., Franck M. Cloning and characterization of a cold- and ABA-inducible Arabidopsis gene. Plant Mol Biol. 1990 Jul;15(1):137–144. doi: 10.1007/BF00017731. [DOI] [PubMed] [Google Scholar]
- Meza-Basso L., Alberdi M., Raynal M., Ferrero-Cadinanos M. L., Delseny M. Changes in Protein Synthesis in Rapeseed (Brassica napus) Seedlings during a Low Temperature Treatment. Plant Physiol. 1986 Nov;82(3):733–738. doi: 10.1104/pp.82.3.733. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mohapatra S. S., Poole R. J., Dhindsa R. S. Changes in Protein Patterns and Translatable Messenger RNA Populations during Cold Acclimation of Alfalfa. Plant Physiol. 1987 Aug;84(4):1172–1176. doi: 10.1104/pp.84.4.1172. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mohapatra S. S., Wolfraim L., Poole R. J., Dhindsa R. S. Molecular cloning and relationship to freezing tolerance of cold-acclimation-specific genes of alfalfa. Plant Physiol. 1989 Jan;89(1):375–380. doi: 10.1104/pp.89.1.375. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Oppenheimer D. G., Haas N., Silflow C. D., Snustad D. P. The beta-tubulin gene family of Arabidopsis thaliana: preferential accumulation of the beta 1 transcript in roots. Gene. 1988;63(1):87–102. doi: 10.1016/0378-1119(88)90548-3. [DOI] [PubMed] [Google Scholar]
- Rashmir-Raven A. M., DeBowes R. M., Gift L. J., Douglass J. B. What is your diagnosis? Upper airway obstruction in a horse caused by pharyngeal perforation during nasogastric intubation. J Am Vet Med Assoc. 1991 Jun 1;198(11):1991–1992. [PubMed] [Google Scholar]
- Snustad D. P., Haas N. A., Kopczak S. D., Silflow C. D. The small genome of Arabidopsis contains at least nine expressed beta-tubulin genes. Plant Cell. 1992 May;4(5):549–556. doi: 10.1105/tpc.4.5.549. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Villemur R., Joyce C. M., Haas N. A., Goddard R. H., Kopczak S. D., Hussey P. J., Snustad D. P., Silflow C. D. Alpha-tubulin gene family of maize (Zea mays L.). Evidence for two ancient alpha-tubulin genes in plants. J Mol Biol. 1992 Sep 5;227(1):81–96. doi: 10.1016/0022-2836(92)90683-b. [DOI] [PubMed] [Google Scholar]
- Weiser R. L., Wallner S. J., Waddell J. W. Cell Wall and Extensin mRNA Changes during Cold Acclimation of Pea Seedlings. Plant Physiol. 1990 Jul;93(3):1021–1026. doi: 10.1104/pp.93.3.1021. [DOI] [PMC free article] [PubMed] [Google Scholar]