Abstract
GUSA fromEscherichia coli, encoded by theuidA gene, has been successfully used as a plant reporter system for more than a decade with no reported deleterious effects. However, when expressed in coordination with a UDP-glucuronosyltransferase isolated from the root cap meristem ofPisum sativum (PsUGT1) at the onset of mitosis, GUSA expression was lethal in pea, alfalfa, andArabidopsis thaliana. These unexpected results indicate that, under some circumstances, using GUSA in plants is incompatible with life and suggest that the cell-specific lethal phenotype might be useful in selecting for genes specifically involved in regulating the G2-M phase of the cell cycle.
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Abbreviations
- FCC:
-
factor controlling cell cycle
- GlcA:
-
glucuronic acid
- GUS:
-
β-glucuronidase
- SL:
-
saccharide lactone
- UGT:
-
UDP-glucuronyltransferase
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Wen, F., Woo, HH., Hirsch, A.M. et al. Lethality of inducible, meristem-localized ectopic β-glucuronidase expression in plants. Plant Mol Biol Rep 22, 7–14 (2004). https://doi.org/10.1007/BF02773343
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DOI: https://doi.org/10.1007/BF02773343