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Physiological roles of ERD10 in abiotic stresses and seed germination of Arabidopsis

Authors
Kim, Sun YoungNam, Kyoung Hee
Issue Date
Jan-2010
Publisher
SPRINGER
Keywords
ERD genes; Abiotic stresses; Seed development; Germination; Arabidopsis thaliana
Citation
PLANT CELL REPORTS, v.29, no.2, pp.203 - 209
Journal Title
PLANT CELL REPORTS
Volume
29
Number
2
Start Page
203
End Page
209
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/13270
DOI
10.1007/s00299-009-0813-0
ISSN
0721-7714
Abstract
While screening for genes affected by cold, we found that Early Responsive to Dehydration 10 (ERD10) was induced by cold treatment. To further investigate the physiological functions of ERD10, we analyzed the T-DNA insertion mutant of ERD10 as well as the expression of ERD10 in response to various stress conditions. The erd10 mutant showed reduced stress tolerance relative to wild-type plants. Activation of the CBF/DREB1 genes by cold stress did not occur in the erd10 mutant, indicating that an increased level of ERD10 is required to subsequently activate the CBF/DREB1 genes and their downstream target genes during treatment with cold stress in Arabidopsis. In addition, we showed that accumulation of the ERD10 transcript in developing seeds was necessary for completion of seed development. Erd10 mutant seeds were abnormally shaped and showed reduced germination. These results suggest that ERD10 can play roles both in protection of the plants from various stresses, including cold and dehydration, and also in seed development and germination.
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