Low-temperature-responsive barley genes have different control mechanisms
| Autor: | N. J. Goddard, Monica A. Hughes, L. Zhang, Roger S. Pearce, Dunn Ma |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Genetics
Messenger RNA Transcription Genetic Acclimatization Hordeum Single gene Plant Science General Medicine Biology Genes Plant Cell biology Cold Temperature Gene Expression Regulation Transcription (biology) Gene expression Time course Cold acclimation Hordeum vulgare Agronomy and Crop Science Gene |
| Zdroj: | Plant Molecular Biology. 24:879-888 |
| ISSN: | 1573-5028 0167-4412 |
| Popis: | Several low-temperature-responsive (LTR) genes from barley have been shown to have high steady-state transcript levels. Run-on transcription was used to determine the control of expression of these LTR genes. Six of these are shown to be transcriptionally regulated (blt 4/9, blt 101, blt 1015, blt 63, blt 49, blt 410) whilst three are post-transcriptionally regulated (blt 14, blt 411, blt 801). Two transcriptionally regulated genes (blt 4/9 and blt 101) and one post-transcriptionally regulated gene (blt 14) have been used in expression studies. The time course for the appearance and decay of these transcripts is given. Initial appearance and steady-state levels of individual transcripts have different temperature characteristics but no single gene correlates with the cold acclimation response. We suggest that these different response profiles may represent a means of fine-tuning the low-temperature response. One gene, blt 4/9, also accumulated high steady-state levels of transcript in response to drought and a nutrient stress. However, only drought has an acclimating effect on barley plants. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink