Os05g0595100

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The rice Os05g0595100 was reported as OsUGE1 in 2014 [1] by researchers from Canada.

Gene Symbol

  • Os05g0595100 <=> OsUGE1,UGE1

Annotated Information

Function

  • OsUGE1 plays A potential Role in Cell Wall Carbohydrate Partitioning during Limiting Nitrogen Conditions.
  • OsUGE1 Enzyme has Higher Affinity for UDP-gal in vitro
  • OsUGE1 Plays an Important Role in Carbohydrate Partitioning to the Cell Wall in Rice
  • OsUGE1-OX Coleoptile Growth in the Presence of Exogenous Supplied Gal

Phenotypic analysis

  • The researchers developed transgenic rice plants to constitutively over-express the OsUGE-1 gene (OsUGE1-OX1–2). The transgenic rice lines were similar in size to wild-type plants at the vegetative stage and at maturity regardless of the N-level tested.
  • However, OsUGE1-OX lines maintained 18–24% more sucrose and 12–22% less cellulose in shoots compared to wild-type when subjected to sub-optimal N-levels. Interestingly, OsUGE1-OX lines maintained proportionally more galactose and glucose in the hemicellulosic polysaccharide profile of plants compared to wild-type plants when grown under low N.
  • The altered cell wall C-partitioning during N-limitation in the OsUGE1-OX lines appears to be mediated by OsUGE1 via the repression of the cellulose synthesis associated genes, OsSus1, OsCesA4, 7, and 9.

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Labs working on this gene

  • Department of Biology, College of Science, Sultan Qaboos University, Muscat, Oman, 2 Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada

References

  1. Guevara DR, El-Kereamy A, Yaish MW, Mei-Bi Y, Rothstein SJ. Functional characterization of the rice UDP-glucose 4-epimerase 1, OsUGE1: a potential role in cell wall carbohydrate partitioning during limiting nitrogen conditions. PLoS One. 2014 May 1;9(5):e96158. doi: 10.1371/journal.pone.0096158. eCollection 2014. PubMed PMID: 24788752; PubMed Central PMCID: PMC4006880.

Structured Information