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- Title
Overexpression of UDP-glucosyltransferase 71C5 increases glucose tolerance in Arabidopsis thaliana.
- Authors
Yan, J. P.; He, H.; Zhang, J. J.; Liu, Z.; Wang, J. M.; Li, X. F.; Yang, Y.
- Abstract
Glucosyltransferases (GTs) catalyze transfer of sugar moieties to a wide range of acceptor molecules, which could be proteins, lipids, or low-molecular-weight lipophilic acceptors. As a subfamily of GTs, uridine diphosphate (UDP)-glucosyltransferases (UGTs), which function is glycosylation of low-molecularweight lipophilic acceptors, has drawn increasing attention. In this study, it was found that UGT71C5 expression in Arabidopsis thaliana treated by 4% glucose could be induced to approximately 250 and 180% of that in the wild type (WT) at both transcriptional and translational levels. Three independent lines overexpressing UGT71C5 were obtained and quantitatively analyzed. It was shown that the average root length of 35S::UGT71C5 transgenic lines was doubled as compared with WT on MS supplemented with 4% glucose. To our knowledge, in higher plants glucose acts as both nutrient and regulatory molecule, which controls many aspects of physiology and development, and the high levels of glucose could arrest glucose-mediated root elongation in plants. Our work suggests that overexpression of UGT71C5 could increase glucose tolerance of A. thaliana. This study could provide insights into the function of UGT71C5 in plants.
- Subjects
GLYCOSYLTRANSFERASES; ARABIDOPSIS thaliana; GLUCOSE; GLYCOSYLATION; PLANT growth
- Publication
Russian Journal of Plant Physiology, 2010, Vol 57, Issue 6, p875
- ISSN
1021-4437
- Publication type
Article
- DOI
10.1134/S1021443710060178