Yeast heat-shock protein gene HSP26 enhances freezing tolerance in Arabidopsis
In the yeast Saccharomyces cerevisiae, the molecular chaperone Hsp26 is one component of the heat-shock response. Hsp26 has the remarkable ability to directly sense increases in temperature and switch from an inactive state to a chaperone-active state. In this study, we report a functional analysis...
| Veröffentlicht in: | Journal of plant physiology. - 1979. - 166(2009), 8 vom: 15. Mai, Seite 844-50 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2009
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| Zugriff auf das übergeordnete Werk: | Journal of plant physiology |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't HSP26 protein, S cerevisiae Heat-Shock Proteins Saccharomyces cerevisiae Proteins Malondialdehyde 4Y8F71G49Q Proline 9DLQ4CIU6V |
| Zusammenfassung: | In the yeast Saccharomyces cerevisiae, the molecular chaperone Hsp26 is one component of the heat-shock response. Hsp26 has the remarkable ability to directly sense increases in temperature and switch from an inactive state to a chaperone-active state. In this study, we report a functional analysis of Hsp26 in Arabidopsis thaliana and its response to freezing stress. After freezing stress, the HSP26 transgenic plants exhibited stronger growth than the wild-type plants. We found that over-expression of HSP26 in Arabidopsis increased the amounts of free proline and soluble sugars, elevated the expression of stress defense genes, and enhanced Arabidopsis tolerance to freezing stress. Taken together, our results indicate that Hsp26 may play an important role in the response of transgenic Arabidopsis plants to freezing stresses |
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| Beschreibung: | Date Completed 08.07.2009 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1618-1328 |
| DOI: | 10.1016/j.jplph.2008.11.013 |