Document Detail

PUB13, a U-box/ARM E3 ligase, regulates plant defense, cell death, and flowering time.
MedLine Citation:
PMID:  22827949     Owner:  NLM     Status:  MEDLINE    
The ubiquitination pathway is involved in a variety of cellular processes in plant growth, development, and immune responses. However, the function of this pathway in connecting plant development and innate immunity is still largely unknown. Recently, we characterized the U-box/ARM E3 ubiquitin ligase PUB13, which regulates both immune responses and flowering time in Arabidopsis. Here, we show that the rice Spl11 gene can complement the cell death and flowering functions of PUB13 in the pub13 mutant. In addition, HFR1, which functions mainly in photomorphogenesis, was identified as one of the PUB13-interacting proteins through yeast two-hybrid screening and pull-down assays. Because the flowering phenotype of pub13 depends on photoperiod, we propose that PUB13 may regulate HFR1 to fine-tune photomorphogenesis and flowering time in Arabidopsis.
Wei Li; Liangying Dai; Guo-Liang Wang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-07-25
Journal Detail:
Title:  Plant signaling & behavior     Volume:  7     ISSN:  1559-2324     ISO Abbreviation:  Plant Signal Behav     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-10-16     Completed Date:  2013-03-12     Revised Date:  2013-07-12    
Medline Journal Info:
Nlm Unique ID:  101291431     Medline TA:  Plant Signal Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  898-900     Citation Subset:  IM    
Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization and Hunan Provincial Key Laboratory of Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, Hunan China.
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MeSH Terms
Arabidopsis / cytology*,  enzymology,  genetics,  immunology*
Arabidopsis Proteins / metabolism*
Cell Death / radiation effects
DNA-Binding Proteins / metabolism
Flowers / cytology*,  physiology*,  radiation effects
Morphogenesis / radiation effects
Nuclear Proteins / metabolism
Plant Diseases / immunology
Plants, Genetically Modified
Protein Binding / radiation effects
Time Factors
Ubiquitin-Protein Ligases / metabolism*
Reg. No./Substance:
0/Arabidopsis Proteins; 0/DNA-Binding Proteins; 0/HFR1 protein, Arabidopsis; 0/Nuclear Proteins; EC protein, Arabidopsis; EC Ligases

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