Journal
FEBS LETTERS
Volume 587, Issue 16, Pages 2584-2590Publisher
WILEY
DOI: 10.1016/j.febslet.2013.06.038
Keywords
Arabidopsis; ATL RING E3 Ub ligase; Cold response; Drought response; Loss-of-function mutant; RNAi knock-down line
Funding
- National Research Foundation [2013-003860]
- National Center for GM Crops [PJ008152]
- Next Generation BioGreen 21 Program
- Rural Development Administration, Korea
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AtATL78 is an Arabidopsis RING E3 ubiquitin ligase. RT-PCR and promoter-GUS assays revealed that AtATL78 was up-regulated by cold stress and down-regulated by drought. AtATL78 was localized at the plasma-membrane. Suppression of AtATL78 increased tolerance to cold stress but decreased tolerance to drought. Our data suggests that AtATL78 is a negative regulator of cold stress response and a positive regulator of drought stress response in Arabidopsis. These results further suggest that AtATL78 plays opposing roles in cold and drought stress responses. (C) 2013 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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